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Sections

Division 26

 

26 00 00 ELECTRICAL

26 00 01 Owner General Requirements and Design Intent

.01 General
  1. Service Voltage
    1. At University Park, service shall be provided from the 12,470V distribution network whenever possible.  The 4,160V network may be used where adequate capacity exists with approval of ES (Engineering Services).
    2. At other locations, services may be provided by a local utility or the campus distribution network as appropriate.  Details will be provided by Engineering Services.
    3. Identify any medium voltage (600V and greater) raceway system within a building by painting it red in its entirety.
  2. Building Voltages
    1. For loads greater than 750kVA, consider 480Y/277V distribution with 208Y/120V step down transformers for receptacles and other 120V loads.
    2. Step down transformers shall be located in rooms with adequate fire ratings and transformers connected for sound isolation using flexible conduit, isolation pads and when supported from the building steel, spring hangers.
  3. Utility Demand and Consumption
    1. The Design Professional shall complete the Utility Demand and Consumption form on all projects. It is used to inform the University of the impact on the distribution system capacity. Submit to Engineering Services at the Preliminary Design review submission and at the Final Design submission.
  4. Building or Facility Electrical Load Determination
    1. The Design Professional shall complete the Electrical Load Determination form for all projects that involve new buildings, major renovations, new electrical services or electrical service upgrades.  It is used to inform the University of the impact on the distribution system capacity and the building or facility's distribution system.  Submit to Engineering Services at the Preliminary Design review submission and at the Final Design submission.  Prepare a separate copy of the form for three types of power; Normal, Emergency and (if required) Standby power.
  5. Specification Editing
    1. Generally, use the “listed manufacturers” option in lieu of “available manufacturers.”  Confirm any manufacturer preference with Engineering Services.
    2. Note at least 3 manufacturers, unless otherwise approved by Engineering Services.  Publicly funded projects require equals unless a formal exception has been granted by the State.
    3. Confirm Requirement for extra materials with Engineering Services.  Typical items to provide are occupancy sensors, specialty luminaire lenses, fuses, indicating lamps, and enclosure keys.
    4. First edit of specifications shall use "strike-through" instead of actually deleting items to be removed.  This will allow Engineering Services to see what is to be deleted rather than search for what is missing.
    5. Create an Excel spreadsheet list of spare parts, etc. that are to be turned over to PSU at substantial completion (based upon the final contract documents).
    6. Data Sheet Instructions:
      1. Engineer completes “SPEC DATA” column with information about equipment including but not limited to ratings, features and options. The data sheet is then submitted with completed specifications for bid.
      2. Manufacturer completes “VENDOR DATA” column and returns completed data sheet with bid or submittal.
      3. Engineer verifies that design specifications have been met by checking that specified features match submitted features.
      4. Click here for Data Sheet Completion Instructions.
  6. Mounting Heights
    1. Heights are measured to device centerline, unless otherwise noted.
    2. Mount switches, card readers, and similar devices at 44” AFF.
    3. Mount receptacles and similar wiring devices at 18” AFF.
  7. National Electric Code (NEC)
    1. Any exceptions taken while using the latest edition of the NEC shall only be used with the express approval of Engineering Services.
.02 LEED

Refer to the PSU LEED Policy for our sustainable design philosophy.  Refer to the PSU Green Buildings web page for additional information.

.10 Scope (Basis of Design/Application of Systems)
  1. Motors
    1. Motors less than 3/4 hp. shall be single phase, 115 volts for operation on 120-volt circuits.  Motors 3/4 h.p. and larger shall be three phase.  Motors operating on three phase, 208V shall be rated at 200V.  Motors operating on three phase, 480V shall be rated at 460 volts.
    2. On motors 25 hp and above at 480V or 10 hp and above at 208V, discuss the use of soft start and variable speed drives.  Voltage sag exceeding 3% on motor start is unacceptable.  Download and edit the Variable Frequency Drive specification from Engineering Services.
    3. Where reduced voltage starters of the wye-delta type are used, only closed transition types are acceptable.
    4. Three phase motors rated 25Hp and larger, 480V AC or 208V AC shall utilize Variable Frequency Drive rated cable, as outlines in the Variable Frequency Drive specification and section 26 05 19.01.
  2. Elevator Service and Support Circuitry
    1. Service:
      1. Where required by code, service to elevator machine shall be derived from an alternate source of power, in addition to the normal source.  Alternate sources of power, whether generator or dual-primary services, shall be reviewed with Engineering Services.
        1. If standby supplies more than one (1) elevator, provide a selector switch so that only one (1) elevator can run simultaneously.  This reduces yearly PSU testing requirements.
      2. Alternate source transfer switch shall contain SPDT contacts for central control system and sufficient number of poles to switch phase wires.  Refer to Tansfer Switch Requirements.
      3. Provide combination fused disconnect/Shunt Trip operator unit.  Equipment shall include three (3) Class J dual-element time delay fuses (sized appropriately for motor HP), 100VA CPT, 10 amp 120VAC Fire Safety Switch interface relay, key to test switch, green pilot light all mounted in a NEMA 1 enclosure.  Unit shall be equal to the Bussmann "Elevator Power Module" PS series, Eaton "Elevator Control" ES series, Little Fuse LSP series, or Ferraz Shawmut ES series.
        1. Where elevator machine service includes an alternate source transfer switch, the shunt trip circuit shall originate from a normal/ emergency circuit.  Shunt trip normal / emergency circuit shall include a voltage-sensing, time delay on release (off) relay, field set for seven (7) second delay to off.  Relay shall include NC contact for tie-in to fire alarm panel to annunciate “trouble”.   Where tie-in to fire alarm system is not possible, provide a stand-alone fire alarm system with the control panel in the machine room.
    2. Support Circuitry:
      1. Cab lighting:  Dedicated 20A Life Safety circuit shared only with emergency telephone consolidator.  Fuse the cab lighting disconnect at 20A, slow-blow fuse.  Each additional cab requires its own dedicated lighting circuit.
      2. Emergency Phone Consolidator:  Dedicated 20A Life Safety circuit shared only with elevator cab lighting.  Direct the contractor to tap the line side of the cab lighting disconnet and provide a single red receptacle with red cover at the consolidator.  Engrave the receptacle cover to read "FOR EMERGENCY PHONE USE ONLY".  Request further emergency phone installation design requirements from Engineering Services.
      3. Pit Sump Pump:  Dedicated circuit and devices as required by load.
      4. Pit lighting and GFI receptacle:  Dedicated 20A normal circuit for GFI receptacle(s) and required lighting fixtures.  Provide two (2) 3-lamp 48 inch shallow depth (4 inches or less) lensed T8 luminaires in the pit.  Luminaires may be mounted horizontal.  Provide 3-way switching for pit luminaires at the top and bottom of and within reach of, pit ladder.  Mount all devices in the pit higher than 24 inches AFF.
      5. Hoistway lighting:  Dedicated 20A normal circuit for required lighting fixtures.  Provide one (1) 2-lamp 48 inch shallow depth (4 inches or less) lensed T8 luminaires at each landing above the pit at a maximum distance of 10 feet center-to-center.  Mount luminaires vertically in a corner.  Provide separate 3-way switching for hoistway luminaires (in pit and top of shaft) and 4-way switches at each access point into the hoistway (elevator door).  Mount switches 48" above landing floor level and within reach of access opening.
      6. Machine Room lighting and GFI receptacle:  Dedicated 20A circuit for GFI receptacle.  Provide minimum of one (1) 3-lamp 48" luminaire on a switched standby power circuit.  Connect lighting and related control on line side of GFI receptacle.
      7. Provide two (2) emergency stop switches, one (1) at the entrance to the pit and one (1) at the bottom of the pit ladder in the pit.  Switch shall be similar to Square D #SKR9R05H13, 2-position, maintained pull, mushroom head with "PUSH EMERGENCY" engraved on the unit.  Connect switches to the elevator controller(s).
      8. Illumination at each landing sill (lobby side) must be a minimum maintained level of 10 fc at all times.  Source shall be unswitched, on emergency power.
  3. Building Automation Systems (BAS)
    1. Coordinate the monitoring of certain electrical equipment with the design of the BAS system.  Equipment to be monitored shall include, but not be limited to:
      1. Arc Flash Reduction Maintenance switches on service entrance equipment (when applicable).  EC shall daisy-chain all switch outputs together so that if one is enabled the BAS system sends an alert to CCS.
      2. Occupancy sensors with relay for HVAC setback for stand-alone room deployments, or digital lighting control systems integration with BAS via BACnet where deployed. All building-wide digital lighting control systems shall use BACnet interface and not contact closures via occupancy sensor. Discuss the deployment options with Engineering Services.
      3. Exterior lighting circuits including building-mounted exterior luminaires.  EC shall wire each CT to the BAS monitoring interface.
      4. Engine Generators (when applicable).  Refer to Generator section for points to wire to the BAS monitoring interface.
      5. Automatic Transfer Switches. Refer to ATS section for points to wire to the BAS monitoring interface.
      6. UPS's (when applicable).
    2. Electrical Equipment BAS Monitoring Interface - Install BAS low voltage work separate from line voltage (>50VAC), specify that a BAS Interface box is provided.  Box shall be minimum of 12x12 with clear cover and contain a labeled terminal strip for each piece of monitored electrical equipment.  EC shall wire each point from the equipment to the terminal strip and label the wires at each end.
    3. Provide a dedicated circuit or circuits to BAS equipment, from the appropriate branch of power.  Not every piece of BAS equipment requires a 20A circuit, they may be combined when appropriate.  Require that the EC field coordinate with the BAS vendor exact locations and provide a single receptacle for their UPS.
.20 Definitions
  1. CCS:  Central Control System that monitors all Building Automation Systems at University Park Campus.
  2. Provision(s):  Electrical space that is built for installation of future overcurrent device without the requirement of any additional parts.
  3. Night Lighting:  CCS term for exterior lights mounted to the building.  These "Night" lights are usually controlled by the campus master photo cell.  "Night Lighting does not include exterior lighting for walkways, roadway or parking, or egress lighting to the Public Way.
  4. Site Lighting:  CCS term for exterior lighting covering free standing walkway lights and "shoebox" roadway or parking lots.  These "Site" lights are typically controlled by the camput master photo cell.  "Site" Lighting does not include exterior lights mounted to the building or egress lighting to the Public Way.
.30 Submittals
  1. Design Calculations
    The University requires that the Design Professional submit calculations for all projects, including:
    1. Illumination (Interior and Exterior) including copies of all proposed luminaires.
    2. Short Circuit
    3. Voltage Drop
  2. Construction Submittals
    1. Engineering Services has the right to request any submittal for review, but it is the sole responsibility of the Design Professional to approve or reject that submittal.  Do not mark any item “Approved As Noted – Pending PSU Review” (or similar).  Discuss any questions or concerns with Engineering Services prior to returning the document to the contractor.
    2. Require all submitals in PDF format so that they may be shared electronically.
    3. Provide a submittal schedule to ES and include ES on any transmittal of review comments.
    4. Contact ES regarding which, if any, submittals should be transmitted for review.  Again, this review shall be simultaneous to that of the Design Professional.
  3. As-Built Submittals
    1. Utilize the spreadsheet list of spare parts to be turned over to PSU at substantial completion.  Require that the contractor provide documentation of each product turned over and note on spreadsheet when PSU received the materials and who accepted it.
    2. Refer to the Lighting section for additional As-Built submittal requirements.
.40 Standard of Quality/Quality Assurance (reserved)
.50 Coordination (reserved)

26 01 00 OPERATION AND MAINTENANCE OF ELECTRICAL SYSTEMS

.01 General
  1. It is the goal of PSU to design systems that are safe, robust, and easy to maintain.  At University Park, all major electrical equipment is inspected, tested, and maintained on a yearly basis.

26 05 00 COMMON WORK RESULTS FOR ELECTRICAL

26 05 10 Electrical Acceptance Testing

  1. The Design Professional shall consider utilizing the information below to create a separate “Electrical Acceptance Testing” specification.  It is acceptable to include these testing requirements within other specification sections, but these requirements are often overlooked by the contractor.  A separate section clarifies the requirement to hire an independent testing agency for all electrical testing.
.01 Electrical Acceptance Testing
  1. Testing shall be performed on electrical equipment and systems to assure that equipment and systems are operational and within applicable standards and manufacturer’s tolerances.  Testing should verify that equipment and systems are installed in accordance with design specifications.  All testing shall occur at the building site.
  2. Testing shall be performed by an independent organization that is professionally independent of the manufacturers, suppliers, and installers of the equipment or systems being evaluated.  The name of the proposed testing organization shall be submitted to Engineering Services for approval.
  3. Qualified technicians who are trained and regularly employed for testing services shall do all testing.  Submit technician qualifications.
  4. The testing organization shall conform to the general guidelines of section 5 of the latest NETA Acceptance Testing Specifications, in their entirety.  This includes the following:
    1. Safety and Precautions
    2. Suitability of Test Equipment
    3. Test Instrument Calibration
    4. Test Report
  5. Provide report in the Megger “Power DB” program.  Furnish one (1) original, editable electronic (.mdb format), one (1) electronic PDF copy, and Four (4) paper copies of the completed report to Engineering Services.  Have the testing firm contact Engineering Services to procure PSU standard Power DB testing forms.
  6. Notify Engineering Services at least seven (7) days in advance of any testing.  A representative of Engineering Services shall witness testing.
  7. Inspection and testing of all applicable electrical equipment listed below shall be done in accordance with the latest version of NETA ATS.  This will include all tests marked optional unless waived in writing by Engineering Services.
    1. Switchgear and Switchboard Assemblies
    2. Transformers:  Air Cooled and Liquid Filled
    3. Cables:  Low and Medium Voltage
    4. Air Switches:
      1. Low Voltage
      2. Medium Voltage, Metal Enclosed
      3. High and Medium Voltage, Open
    5. Oil Switches:  Medium Voltage
    6. Vacuum Switches:  Medium Voltage
    7. Low Voltage Circuit Breakers:
      1. Insulated Case/Molded Case (100 amp frame and larger)
      2. Power
    8. Medium Voltage Circuit Breakers:
      1. Air
      2. Oil
      3. Vacuum
      4. SF6
    9. Circuit Switchers
    10. Network Protectors
    11. Protective Relays
    12. Instrument Transformers
    13. Metering
    14. Grounding Systems
    15. Ground Fault Protection Systems
    16. Motors:  AC and DC
    17. Generators:  AC and DC
    18. Motor Starters:  Low and Medium Voltage
    19. Motor Control Centers:  Low and Medium Voltage
    20. Adjustable Speed Drive Systems
    21. Direct Current Systems:
      1. Batteries
      2. Battery Chargers
    22. Surge Arresters
      1. Low Voltage Surge Protection Devices
      2. Medium Voltage Surge Protection Devices
    23. Capacitors and Capacitor Control Devices
    24. Outdoor Bus Structures
    25. Emergency Systems:
      1. Engine Generator
      2. Uninterruptible Power Systems
      3. Automatic Transfer Switches
    26. Automatic Circuit Reclosers and Line Sectionalizers
    27. Fiber Optic Cables
.02 System Function Tests
  1. Perform system function tests upon completion of equipment tests as defined in 26 05 10.01.  It is the purpose of the system function tests to prove the correct interaction of all sensing, process, and action devices.
  2. Verify the correct operation of all safety devices for fail-safe functions in addition to design function.
  3. Verify the correct operation of all sensing devices, alarms, and indicating devices.
.03 Thermographic Survey
  1. Perform a thermographic survey on all current carrying devices.  Perform the survey during periods of maximum possible loading and prior to expiration of warranty or bond period.
  2. Imaging equipment shall be capable of detecting a minimum of 1-degree Celsius at 30 degrees Celsius.
  3. level 2 certified thermographer shall perform the survey.
  4. A report shall be submitted to Engineering Services which includes the following:
    1. Description of equipment tested
    2. Discrepancies
    3. Temperature difference between area of concern and reference area
    4. Areas inspected
    5. Load conditions at time of inspection
    6. Provide photographs and/or thermograms of deficient areas
    7. Summary which includes recommendations for corrective actions.
.04 Electromagnetic Field Testing
  1. Determine the vector-valued quantity of magnetic flux density for power frequency magnetic fields over a predetermined space or area, as designated by Engineering Services.
  2. Testing shall be done in accordance with the latest version of NETA ATS.
  3. This test is only necessary for specific labs, confirm with Engineering Services prior to adding to the specifications.
.05 Voltage Drop Testing
  1. A voltage test shall be made at the last receptacle of each branch circuit of each Panelboard.  Total voltage drop shall not exceed 3% of the initial voltage measured at the end of that branch circuit.  The test shall be made using a 12A load attached to the furthest receptacle.  Contractor is responsible to correct any installation with a voltage drop of greater than 3%.  If a branch circuit fails the test, all other branch circuits on that panel shall be tested.  Submit all test results to Engineering Services.
  2. Documentation of the results shall be provided to Engineering Services.
  3. Any non-conforming branch circuits shall be corrected.
.06 Fire Alarm Testing
  1. All connected fire alarm devices are to be tested for operation, proper programming, and verified to meet proper sequence of operation.  Printout of full system test showing test of all devices and interconnected systems shall be provided.  Test is to include all sprinkler flow sprinkler tamper devices, all duct detectors and associated fan shutdown, any smoke evacuation sequence, elevator recall, magnetic door hold or door closer devices, any fire alarm sub-system interconnection, etc.  Final fire alarm testing is to be completed in the presence of a representative from the Office of Physical Plant – Engineering Services with sufficient prior notification.
  2. System shall be tested for code compliant alarm audibility upon completion of construction.
  3. Completed and accurate As-Built floor plans shall be used for final testing and copies of these drawings shall be turned over to the PSU representative immediately after testing.  These plans shall include full floor plans showing all fire alarm devices with address and/or loop ID information.  Also, a copy of the MXL program shall be turned over to PSU at that time.

26 05 13 Medium-Voltage Cables  

.01 Primary Cables

This work is typically installed by PSU Utility Services.  Discuss medium voltage cable installation with Engineering Services.

26 05 19 Low-Voltage Electrical Power Conductors and Cables

.01 Cabling
  1. Minimum wire size shall be #12 AWG.
  2. Provide separate neutral conductor for every interior branch circuit.
  3. Utilize solid conductors for No. 10 AWG and smaller; stranded for No. 8 AWG and larger.
    1. Stranded wire for No.10 AWG and smaller will be considered, but only with Engineering Services approval.  If utilized, wiring devices shall be the "plug-on" type with pre-fabricated pig-tails to allow positive connection of cables.
  4. Service Entrance, Feeders, and Branch Circuits:  Single conductors in raceway, minimum 75C rated.  MC cable is not acceptable.
  5. All exterior wiring connections, and those made at or below grade shall be waterproof with UL listed waterproof connectors.
  6. Push-on wire connectors, other than for luminaire disconnects, shall not be allowed.
  7. VFD rated cable shall be used for 25Hp, three phase, 480V AC or 208V AC motors and above, when used in conjunction with a VFD.  The designer may elect to specify VFD rated cables on smaller motors if so desired.  The VFD cable shall have the miminum following characteristics:
    1. UL listed for 600V, 1000V, 2000V (designer to discuss need for 1000V or 2000V option with Engineering Services
    2. 90°C Wet/Dry
    3. UL Listed Type TC-ER
    4. Oil and Sunlight Resistent
    5. Three symmetrical placed ground wires
    6. Un-coated copper shield with minimum 50% overlap, full continuous coverage recommended.  Shield shall be in contact with ground wires
      Acceptable manufacturers are:  Belden, Draka, Southwire, or approved equal.
  8. Compression lugs shall be utilitzed for connections where practicable.  Compression lugs shall be UL listed, two-hole type, long barrel connectors.  Acceptable manufacturer is Burndy, or approved equal.

26 05 26 Grounding and Bonding for Electrical Systems

.01 General
  1. Isolated ground systems must be approved by Engineering Service.
  2. Typical CADD details are listed below for the Design Professionals reference:
    Document Version
    Date
    Description
    Detail #260526-D01

    Grounding Details
    (AutoCAD)


    Grounding Details
    (PDF)


    June 2016
    Typical University Grounding Details for the Professionals'
    use.  The details provided are a baseline and it is the
    responsibility of the professional to design and develop
    complete details that are acceptable.
.02 Guide Specifications
  1. Design Professional shall carefully review and edit the guideline specifications below, adapting them as needed to achieve application-specific, fully developed specifications for each project.
  2. These shall be edited using the process described in the instructions contained at the beginning of the document.  Proposed modifications shall be reviewed with OPP Engineering Services.
  3. Finalized version shall be included in the project contract documents.  Use of other specifications is not acceptable.

 

Document Version
Date
Description


260526-Grounding and Bonding for Electrical Systems.docx

June 2016
University's guide specification for grounding and bonding of electrical systems; to be used by the design professional.

 

26 05 29 Hangers and Supports for Electrical Systems (reserved)

26 05 33 Raceway and Boxes for Electrical Systems

.01 General
  1. Minimum size 3/4 inch.
  2. Lighting runouts may be 1/2 inch flexible metallic conduits, no longer than 72 inches.
  3. Aluminum and plastic conduit is not acceptable (interior).  Use of rigid PVC conduit within corrosive environments is acceptable.  Review use of PVC with Engineering Services.
  4. Intermediate grade, rigid steel, and EMT conduit are acceptable.  Where EMT is used, compression fittings are required.  Metal or Armored cable is not acceptable, except in small lengths as final connections to luminaires, motors, or as approved by Engineering Services.
  5. Install No. 12 non-ferrous or 200 lb. test nylon fish line in conduits where permanent wiring is not installed.
  6. Support outlet boxes and switch boxes from two (2) adjacent studs.  Outlet boxes designed to attach to one metal stud and be "sandwiched" between the front and back layers of Gypsum Wallboard are not allowed.
  7. Where installed in fire-rated partitions, apply firestop putty pads or similar fire rated products on or around outlet boxes as required to maintain the fire rating of the partition.
  8. Back-to-back outlets in commons walls are not permitted.  Outlet boxes shall be separated by at least one stud wherever possible.  In cases of outlet boxes of adjacent rooms in the same stud cavity at the same height, provide a layer of expandable spray foam insulation around each box in that cavity.  There must be a minimum of a 1” horizontal separation space between boxes of adjacent rooms.  If this condition occurs in a fire rated wall, provide a 1 hour fire rated putty pad to cover the back of the outlets of one side of the partition.  Other junction box installations on fire rated walls shall comply with UL requirements.
  9. Surface mount raceway, when approved by Engineering Services, shall typically be non-metallic with dual channels similar to Wiremold 5400 series.  Specify appropriate metallic raceway when required to resist certain chemical environments.

26 05 36 Cable Trays for Electrical Systems

.01 Cable Trays
  1. Acceptable for communication cable.  Refer to the PSU TNS (Office of Telecommunications and Network Services) Minimum Standards for Telecommunications Facilities for requirements.
  2. May be desirable in certain research laboratories or facilities to contain equipment power and control cable.

26 05 43 Underground Ducts and Raceways for Electrical Systems

.01 Underground Ducts
  1. Underground primary cables shall be installed in 5-inch PVC conduit encased in concrete.  Conduit may be NEMA TC-6 Type EB or Schedule 40.  Elbows shall be Schedule 40.
  2. Underground service entrance secondary cables shall be installed in minimum 4-inch PVC conduit encased in concrete.  Conduit may be NEMA TC-6 Type EB or Schedule 40.  Elbows shall be Schedule 40.
  3. Steel reinforcing is required under traffic areas.
  4. All concrete-encased duct banks shall be installed such that a minimum 3"-thick base is poured and cured prior to setting base spacers.
  5. Add the following requirements to any ductbank detail.
    1. “Avoid over-excavation of the ductbank trench.  Ductbank walls shall be formed within 5 feet of a manhole, within a “common” utilities trench, and if the width of the pour will extend beyond the dimension shown on the detail.”
    2. “Inspection and sign-off by University representative is required after the ductbank base is poured and the conduits are installed, but prior to final concrete encasement.”
  6. Detectable warning tape shall be placed in the center and at least two feet above the underground duct.  The detectable warning cable shall have the following characteristics but are not limited to:
    1. Meets or exceeds all ASTM specifications
    2. Minimum 6: width
    3. Minimum 5 mil thickness
    4. Acid, Alkali, Chemical, and Oil Resistant
    5. Direct burial rated
    6. Multi-layered polypropylene and aluminum
    7. Print legend stating "CAUTION BURIED HIGH VOLTAGE LINE BELOW" or "CAUTION BURIED ELECTRIC LINE BELOW"
  7. Typical CADD details are listed below for the Design Professionals reference:
    Document Version
    Date
    Description
    Detail #260543-D01

    Ductbank Details
    (AutoCAD)


    Ductbank Details
    (PDF)

    October
    2014
    Typical University Ductbank Details for the Professionals
    use.  The details provided are a baseline and it is the
    responsibility of the professional to design and develop
    complete details that are acceptable.
.02 Manholes and Transformer Foundations
  1. Electric manholes shall be precast or poured in place with pulling irons and cable supports.  Coordinate size with ES.
  2. Manholes shall be fitted with nonlocking type heavy frame and cover.  Provide minimum 32" clear access opening.  The word “ELECTRIC” shall be cast in the cover in three (3) inch high letters.  The opening shall be in one corner.  A non-conductive ladder extending to the surface shall be provided.
  3. Transformer foundations base shall be precast, coordinate size with ES.  Base and lid shall have tongue and grove seal.
  4. Factory bell ends are to be used where conduits penetrate manhole/foundation walls.
  5. Grounding:
    1. All electrical systems shall be suitably grounded, including all non-current carrying metallic components of all equipment and metallic conducts.  Grounding shall be accomplished as required by the National Electric Code.
    2. Transformer foundation shall have a minimum 2/0 AWG bare copper ground ring with at least two (2) 96” ground rods. Exothermically weld rods and ring.  Ring shall be a minimum of 24” from the edge of the foundation, buried between 18” and 24” deep.  Rods shall be installed at opposite corners or at a distance of more than rod length apart.  Extend cabling a minimum of 48” above grade for connection to transformer.  Do not connect this ground ring to the building service. 
  6. Supports in Electric Manholes:
    1. The Contractor shall furnish and install supports in new and existing manholes where cables are to be installed, cable rack supports of the type permitting variable vertical location of the cable supports.  Supports shall be installed as required to support newly installed or relocated cables.  Each cable shall be secured to each cable support.  Nonmetallic support systems may be used provided they are warranted for labor and materials for a period of no less than two years.
    2. All cables shall be properly dressed and racked on the support arms around the walls of the manholes providing adequate slack for future rearrangement and splicing.  Existing ducts must not be blocked by cables.
  7. Work within manholes must comply with the PSU Physical Plant Confined Space Entry requirements and permission obtained from the Utility Electrical Supervisor to insure safe entry procedures are followed.  Due care shall be taken not to damage existing cables.
  8. Typical CADD details are listed below for the Design Professionals Reference:
    Document Version Date
    Description
    Detail #260543-D01

    Manhole Details
    (AutoCAD)

    Manhole Details
    (PDF)

    October
    2014
    Typical University manhole Details for the Professionals
    use.  The details provided are a baseline and it is the
    responsibility of the professional to design and develop
    complete details that are acceptable
    Detail #260543-D02

    Transformer
    Foundation Details
    (AutoCAD)

    Transformer
    Foundation Details
    (PDF)

    October
    2014
    Typical University Transformer Foundation Details for the
    Professionals use.  The details provided are a baseline and
    it is the responsibility of the professional to design and
    develop complete details that are acceptable.

26 05 48 Vibration and Seismic Controls for Electrical Systems

.01 General
  1. Refer to section 1613 of the latest IBC (International Building Code) to confirm any requirement for seismic restraint.  Discuss requirements with Engineering Services prior to proceeding with design.

26 05 53 Identification for Electrical Systems

.01 General
  1. Utilize Engineering Services naming scheme for mechanical equipment, exterior lighting fixtures, etc.
  2. Refer to 26 27 26 - Wiring Devices for color coding, lab receptacle, and Class 1 Critical Research labeling.
  3. Class 1 Critical Research/Power Labeling - Labeling shall be placed on all switchgear, switchboards, distribution panels and panelboards that are feeding CRITICAL research or power, upstream equipment shall be labeled up to service entrance. The label shall have a yellow background with black lettering.  The labeling shall read, "CRITICAL RESEARCH OR POWER IS FED FROM HERE. CONTACT FACILITY COORDINATOR IF A SHUTDOWN IS REQUIRED"
  4. Distribution Equipment Designations
    1. Distribution Equipment (floor mount):
      1. MDS: Main Distribution Switchgear (Switchboard)
      2. SDS: Secondary Distribution Switchboard (typically a major piece of 208Y/120V equipment)
      3. MDP: Main Distribution Panelboard
      4. EDP: Emergency Distribution Panel (for distribution from generator)
      5. SBDP: Standby Distribution Panel
    2. Panelboards:
      1. Branch
        1. C    Critical (Legally Required Emergency)
        2. E    Emergency (Code Required Emergency)
        3. _     Normal (most branch circuit panels)
        4. O    Emergency Only
        5. Q    Equipment (for some generator systems)
        6. S    Standby (Non-Required Emergency)
      2. Voltage
        1. H    480Y/277V
        2. L     208Y/120V
      3. Type
        1. B    Lab (include lab designation)
        2. D    Distribution Panel (3-phase loads)
        3. L     Lighting
        4. M    Mechanical
        5. R    Receptacle
      4. Building Floor
        1. 0    Basement
        2. G    Grade
        3. 1     First
        4. 2    Second... 
        5. Etc.
        6. P    Penthouse
      5. Building Area (as required)
        1. A, B, C...
      6. Panel Sequence (as required)
        1. a, b, c…
          or
          1, 2, 3…
        2. Examples:
          • “HL0a”        Normal power, 480V, Lighting panel, Basement (no building area, first in sequence)
          • “QHM2B”    Equipment branch, 480V, mechanical panel, 2nd Floor, area B (no sequence)
.02 Guide Specifications
  1. Design Professional shall carefully review and edit the guideline specifications below, adapting them as needed to achieve application-specific, fully developed specifications for each project.
  2. These shall be edited using the process described in the instructions contained at the beginning of the document.  Proposed modifications shall be reviewed with OPP Engineering Services.
  3. Finalized version shall be included in the project contract documents.  Use of other specifications is not acceptable.

 

Document Version Date Description
260553 – Identification for Electrical Systems.docx June 2016 University’s guide specification for identification of electrical systems; to be used by the design professional.

 

26 05 73 Engineering Power Studies

.01 General

   A.    The short-circuit current available on the primary feeder will be given to the Professional by Engineering Services.

   B.    The proposed vendor shall demonstrate capabilities in providing equipment, services, and training to reduce Arc-Flash exposure and train workers in accordance with NFPA 70E and other applicable standards.

.02 Guide Specifications

   A.    Design Professional shall carefully review and edit the guideline specifications below, adapting them as needed to achieve application-specific, fully developed specifications for each project.

   B.    These shall be edited using the process described in the instructions contained at the beginning of the document.  Proposed modifications shall be reviewed with OPP Engineering Services.

   C.    Finalized version shall be included in the project contract documents.  Use of other specifications is not acceptable.

   D.    The design professional shall utilize the sample arc flash labels and the content within as a baseline for the arc flash labels that are to be generated from the power study.

 

Document Version Date
Description
Power Study Guide Specification.doc
June 2016
University's guide specification for Power Studies of electrical systems; to be used by the design professional.
Power Study Sample Arc Flash Labels

PSU Standard Arc Flash Label Sample 1 (PDF)

PSU Standard Arc Flash Label Sample 2 (PDF)
June 2016
Typical University Standard Arc Flash label for the Professionals' use. The details provided are a baseline and it is the responsibility of the professional to design and develop complete labels that are acceptable.

26 09 00 INSTRUMENTATION AND CONTROL FOR ELECTRICAL SYSTEMS

26 09 23 Lighting Control Devices

.01 General
  1. Intent – PSU designs shall strive for simple and effective methods of lighting control that is robust and easy to maintain.
  2. Automatic Lighting Controls:
    1. All interior building spaces shall be controlled via automatic means, typically occupancy sensors. 
      1. Utilize primarily ceiling or aimable wall/ceiling mount as they provide better coverage than wallbox style.  Deploy wall mounted sensors where possible to minimize HVAC air stream conflicts with sensors using ultrasonic technology.
      2. Use “vandal-resistant” models for wallbox mounting in individual bathrooms and small public rooms.
      3. Use dual relay models for offices and similar spaces requiring dual level lighting (switch closest to the door frame controls the low-light level).
      4. Dual-technology is typically preferred, but consider whether the use of one technology over another is more appropriate for specific applications.
      5. When ceiling/wall sensors are used, always provide manual switch(es) on the load side to allow user control.
      6. Allowable manufacturers of stand-alone equipment are Leviton, Sensor Switch, and Watt Stopper.
      7. Discuss with Engineering Services the use of networked sensor systems for new construction and major renovation projects.  Acceptable products are Lutron Energi Savr Node, Sensor Switch nLight and Watt Stopper DLM.  These systems are also appropriate for more complicated control of specific spaces such as:
        1. classrooms
        2. conference spaces
        3. daylight harvest of large areas
    2. Specify all ceiling and wall-mount (non-wallbox) sensors with output relays to allow the BAS system to monitor occupancy so that local HVAC can reduce to minimum levels when no occupancy is sensed.  This is especially effective for large offices, classrooms, labs, and similar spaces.  Discuss control strategy with Engineering Services at schematic design phase.  Sensor relays shall not be used when a digital networked system is deployed.  BACnet interface shall be provided for all networked systems.
    3. Require in the contract documents that the successful controls vendor submit final layout drawings for review and approval as part of the shop drawing package.  Include that the Vendor may have to modify their layout from that designed, as necessary to meet vendor-specific requirements or limitations.  No extra costs to be allowed.
    4. Specify an allowance for additional sensors and include spare parts turned over to PSU.
    5. Provide wallbox timer switches for Telephone, Mechanical, Janitor, and similar rooms.  Switch(es) must give visual warning 5 minutes and audible/visual warning 1 minute before lights turn off, similar to Watt Stopper TS-400.  Refer to 265000.01.B for PSU Lighting Control Matrix outlining required time delay settings for each space where deployed.
  3. Central Lighting Controls:
    1. When appropriate, and approved by Engineering Services, interior building lighting shall be controlled through a digital networked lighting control system via wallbox controls, occupancy sensors and per schedule set by the building users.  Discuss this type of control with Engineering Services prior to specifying. Refer to 265000.01.B for PSU Lighting Control Matrix outlining required time delay settings for each space where deployed.
      1. Exterior building mount “Night” lights shall be controlled through lighting contactors via the Central Control System.  Refer to the “SITE/NIGHT LIGHTING” section of the BAS Specification for requirements. Contactors shall be fail-safe with device failure to "on".
      2. Exterior “Site” (walkway, roadway, and parking) lights shall be controlled from the CCS (Central Control System) through lighting contactors, utilizing 4-20mA CT’s to confirm circuit activation.  Refer to the “SITE/NIGHT LIGHTING” section of the BAS Specification for requirements and discuss options with Engineering Services. Contactors shall be fail-safe with device failure to "on".

 

26 10 00 MEDIUM-VOLTAGE ELECTRICAL DISTRIBUTION

26 11 00 SUBSTATIONS

26 11 16 Secondary Unit Substations

.01 General
  1. Indoor unit substations may be required under certain designs.  Where used, these shall be three-phase units equipped with a loadbreak fused switches, with current limiting fuses.  SF6 gas insulated equipment shall not be used unless approved by Engineering Services.
  2. Taps, two at 2-1/2% and each alone and two at 2-1/2% each below normal shall be provided.
  3. Where indoor transformer rooms are used, they must be adequately ventilated with powered ventilators, dampers, and a suitable control system.

26 12 00 MEDIUM-VOLTAGE TRANSFORMERS

.01 Distribution Transformers
  1. This work is typically installed by PSU Utility Services.  Discuss medium voltage pad-mount transformer project requirements with Engineering Services.
  2. Provide transformer foundation for exterior locations.  Ground per “Grounding” section below.
  3. Indoor oil-filled transformer, when approved by Engineering Services, shall be FM approved (not just the oil itself).  Contact Engineering Services for minimum efficiency requirements.
  4. Where fuses are used, a complete set of spare fuses shall be provided.
  5. Provide complete information, instructions, wiring diagrams and manuals for maintenance and servicing.
.02 Grounding
  1. All electrical systems shall be suitably grounded, including all non-current carrying metallic components of all equipment and metallic conducts.  Grounding shall be accomplished as required by the National Electric Code.
  2. Provide minimum 2/0 AWG bare copper ground ring with at least two (2) 96” ground rods around transformer foundation. Exothermically weld rods and ring.  Ring shall be a minimum of 24” from the edge of the foundation, buried between 18” and 24” deep.  Rods shall be installed at opposite corners or at a distance of more than rod length apart.  Extend cabling a minimum of 48” above grade for connection to transformer.  Do not connect this ground ring to the building service.

26 20 00 LOW-VOLTAGE ELECTRICAL DISTRIBUTION

.01 General
  1. Services (480V and below)
    1. Design shall include single-line diagram(s) from the Service Entrance equipment through to each branch circuit panel or large load.  Show all breakers through any panelboard mains.  Riser format is preferable for clarity.
    2. Equipment shall be fully rated, series rated is not acceptable.
    3. Provide a set of “as-built” drawings stored in the main electrical room.  Storage shall be in a transparent PVC tube with a removable end.  The tube shall be mounted to the wall horizontally.  Tube shall be sized appropriately for drawings that will be placed inside.  Label tube appropriately.
    4. Provide 30”x42”, laminated copy of the single-line diagram(s) adjacent to the service entrance equipment.  Mount in aluminum frame under plexi-glass.  Smaller size may be acceptable depending on the project, contact Engineering Services for direction.
    5. Consider using a SPD (surge protective device) on lighting/appliance panels.  Review this with Engineering Services.
    6. Contact Engineering Services for a list of acceptable equipment manufacturers.
    7. All busing and wiring is to be copper.  Specify that all field-replaceable lugs are to be copper (switchgear, switchboards, and panelboards), no aluminum is allowed due to failure from over-torquing.
    8. Design professional shall perform and submit voltage drop and short circuit studies.  Voltage drop study shall size feeders utilizing a load equal to 80% of the overcurrent device rating.  Engineer shall size feeders for a maximum 2% voltage drop.  Engineer shall also provide information on each Panelboard advising the contractor as to the maximum length of a #12 AWG and #10 AWG branch circuit feeding a 12 A load to maintain no more than an additional 3% voltage drop.  Short circuit study shall utilize the feeder sizes as determined by the voltage drop study.
    9. Coordinate the requirement for panic hardware on door(s) exiting the main electrical room with the architect.  When required, provide true panic bar setup to allow egress without use of hands, in case of electrical burns.
    10. Indicating lamps on any equipment shall be LED.
    11. When temporary power for a construction site is fed from a building with ground fault protection, the temporary power feeder shall be fed from a breaker with ground fault detection.
    12. Electronic trip units with display must have integral power supply.  Main/tie/main gear shall have dual power supplies with interconnection in tie section.  Power supply must be multi-tap, capable of running on 120/240 VAC, and 48/24 VDC.
    13. All circuit breakers of frame sizes from 100 amperes up to 400 amperes shall incorporate adjustable magnetic trip.  Breakers 400 amperes and larger shall incorporate electronic trip units with functions as determined by the coordination study and as required by NEC.  Breaker shall have cause of trip indicator targets.  Trip units that utilize battery backup, shall have field replaceable batteries.  Provide 20% spare batteries as well as full function secondary injection portable test set.
    14. Provide Coordination Study, per the Engineering Power Studies section.
    15. Specify that the Engineering Power Studies be submitted to Engineering Services prior to receiving final approval of the electrical distribution equipment shop drawings and prior to release of equipment for manufacture.
    16. Require nameplate on each upright section, both front and rear, for switchgear and switchboard assemblies.
    17. Require IR camera windows on each rear section of switchgear, confirm scope with Engineering Services.
    18. Minimum AIC ratings for electrical equipment shall be 22,000 AIC for less than or equal to 240VAC and 42,000 AIC for greater than 240VAC. The AIC ratings for electrical equipment shall be verified by the Power Study, upsizing of AIC rating may be required.  The Design Professional shall bare responsibility to ensure the proper AIC rating is chosen for a specific piece of equipment.
  2. Service Entrance Equipment
    1. Where Unit Substation is approved, provide secondary main overcurrent protection. 
    2. Ground fault protection – provide where required by the National Electric Code.  When the main circuit breaker has ground fault protection, all second level breakers must also have ground fault protection.  When a third level breaker equals or exceeds 400 amps, consider additional ground fault protection.  Consult with Engineering Services.  Properly interlock all levels of ground fault protection to insure tripping at the lowest possible level and verify on the Coordination Study required under the Engineering Power Studies section.
      1. Annunciate breakers with ground fault trip capability for a ground fault trip and include a ground fault trip indicator.
      2. 208V systems shall not have ground fault breakers in the secondary distribution system except as required by code.
    3. Designs for PSU shall strive to provide the lowest possible arc flash incident energy.  Contact Engineering Services to determine whether to specify ARM (Arch Flash Reduction  Mode) system on any Project.  ARM shall utilize either arc flash light/current sensing system or separate arc reduction circuitry switch for use during maintenance and inspection of the service entrance equipment.  Alternative arc flash reduction methods will be considered.  When utilized, the ARM switch system shall adjust the trip curve of the breaker relay. Systems utilizing “zone-interlock” exclusively are not acceptable.  ARM system shall have remote lockable switch(es) on the front of the gear to initiate this setting with separate blue LED light(s) for notification.  When this circuitry is provided, monitor the activation via CCS (Central Control System), per the BAS Specification.  Require dual Arc Flash stickers to meet NFPA 70E, refer to Engineering Power Studies section of the standards.  Manufacturer representative shall provide letter stating that they have visited the site and confirmed that the stickers have been applied in appropriate locations, per the Study.
    4. Refer to 26 27 13 - Electricity Metering for requirements.
    5. Refer to 26 35 33 - Power Factor Correction Equipment for requirements.
    6. Refer to 26 43 13 - Surge Protective Devices for Low-Voltage Electrical Power Circuits for SPD requirements.

26 22 00 LOW-VOLTAGE TRANSFORMERS

.01 General
  1. Low-loss transformers shall be designed to latest DOE standard efficiency requirements or higher for the following purposes:
    1. Delivering lowest life cycle cost according to the US Dept. of Energy
    2. Contributing to LEED Energy & Atmosphere Credit 1 (Optimize Energy Performance)
.02 Guide Specifications
  1. Design Professional shall carefully review and edit the guideline specifications below, adapting them as needed to achieve application-specific, fully developed specification for each project.
  2. These shall be edited using the process described in the instructions contained at the beginning of the document.  Proposed modifications shall be reviewed with OPP Engineering Services.
  3. Finalized version shall be included in the project contract documents.  Use of other specifications is not acceptable. 
Document Version Date
Description
Low-Voltage Transformer Guide Specification.docx
June 2016
University's guide specification for Low-Voltage Transformer; to be used by the design professional.

 

26 23 00 LOW-VOLTAGE SWITCHGEAR

.01 General
  1. Refer to Service Entrance Equipment in 26 20 00 for additional requirements.
  2. Circuit breakers for lab facilities or of capacity 1,600 amperes and greater (and as required by Engineering Services for maintenance purposes) shall be of the metal enclosed low voltage power circuit breaker type, draw-out, with "Engaged," "Test", and "Disengaged" positions, to meet UL1066 mounted in switchgear to meet ANSI C37/UL1558.  Racking shall be accomplished with cell door closed and latched.  Each breaker cell shall be completely separated from adjacent cells.  Provide each cell with protective shutter for personnel protection when breaker is racked out.  Provide pad-locking provisions for all cubicles, including spaces.  Primary contacts shall be field replaceable.  Breakers shall have visual trip indicators.  Coordinate feeder breaker types with Engineering Services.
  3. Provide vertical barrier between adjacent upright sections to prevent arc event from traveling through the rear of the lineup.
  4. Provide the following for any electrical equipment with draw-out breakers:
    1. Overhead-circuit-breaker lifting device, track mounted, at top front of the gear.
    2. Storage cabinet, with padlock and hasp, for storing equipment and breakers.  Unit shall be 60”H x 24”D x 36”W, capable of 900lb/shelf built by Durham, Lyon, Stronghold, or approved equal.
    3. Floor mount rolling hydraulic foot-pump platform lift, Beech Engineering (Division of Miller Products Inc.) Model PS-2460, or approved equal by Genie, Vestil, or Wesco.  72" overall height, rated load of 1000lbs., minimum lift height of 60", and platform measuring a minimum of 20"X20".
  5. Main-tie-main setup, when approved by Engineering Services, shall be electrically operated.  The control sequence shall allow for automatic and/or manual transfer between sources (typical set up is for open tie with automatic transfer to available source with manual re-transfer).  If provided with Kirk key interlock, include an extra “maintenance” key.  “Maintenance” key shall be provided in a pad-locked box in the main electrical room and shall be properly labeled.  Consider adding synch-check relay to allow for closed transition under engineering supervision.  Contact Engineering Services for typical "sequence of operation" document.
  6. Provide one (1) spare breaker in each frame size and at least 10% fully provisioned space capacity.
  7. Provide mimic bus on large and/or complicated equipment.  Normal power shall be in white, emergency shall be in red.
  8. Provide hinged doors, front and rear.  Rear doors shall have hasp for padlock.  Label rear doors to match the front.
  9. Padlocks, provide Best #11B772-L, with core #1C7F1-626, in quantity as follows:
    1. One (1) for each rear hinged section
    2. One (1) for each draw-out breaker cubicle and cubicle space
    3. Two (2) spare
.02 Guide Specifications
  1. Design Professional shall carefully review and edit the guideline specifications below, adapting them as needed to achieve application-specific, fully developed specifications for each project.
  2. These shall be edited using the process described in the instructions contained at the beginning of the document.  Proposed modifications shall be reviewed with OPP Engineering Services.
  3. Finalized version shall be included in the project contract documents.  Use of other specifications is not acceptable.
    Document Version Date Description
    26 23 00 Low-Voltage
    Switchgear Guide
    Specification

    October
    2014
    This guide specification is intended to provide the
    Design Professional with general OPP minimum
    requirements for Low-Voltage Switchgear.

    26 24 00 SWITCHBOARDS AND PANELBOARDS

    26 24 13 Switchboards

    .01 General
    1. Refer to Service Entrance Equipment in 26 20 00 for additional requirements.
    2. Provide at least one (1) spare breaker in each frame size and at least 10% fully provisioned space capacity.
    .02 Guide Specifications
    1. Design Professional shall carefully review and edit the guideline specifications below, adapting them as needed to achieve application-specific, fully developed specifications for each project.
    2. These shall be edited using the process described in the instructions contained at the beginning of the document.  Proposed modifications shall be reviewed with OPP Engineering Services.
    3. Finalized version shall be included in the project contract documents.  Use of other specifications is not acceptable.
    Document Version Date Description
    Switchboard Guide Specification.docx June 2016 University’s guide specification for Switchboard; to be used by the design professional.
    Switchboard Datasheet (doc) June 2016 Typical University Switchboard Datasheet for the Professionals use. The datasheet instructions are found in the guide specification and a sample is found in Division 26 00 00.

     

    26 24 16 Panelboards

    .01 General
    1. Refer to Service Entrance Equipment in 26 20 00 for additional requirements.
    2. Allow 20% spare and another 10% fully provisioned space capacity for future breakers.  Critical operations, shops and research facilities may require 50 percent spare capacity, consult with Engineering Services.
    3. Distribution Panels
      1. Consider second level of SPD, especially if panel feeds sensitive or critical loads or has branch circuits running outside of the building footprint (site lighting, etc.).
      2. When ground fault is provided on the service entrance equipment, specify ground fault sensing and shunt-trip for breaker(s) feeding site lighting panel(s). Coordinate setting of ground fault to limit nuisance tripping, but also prevent any overtrip.
    4. Branch-Circuit Panels
      1. Panelboards serving dedicated computer loads shall be reviewed for 200% neutral bus and feeder application with Engineering Services.
      2. Circuits feeding exterior lighting shall utilize the 3-letter labeling scheme as directed by Engineering Services.
      3. Panelboard Installation:
        1. Panels serving loads in only one room may be located in that room.
        2. Panels serving more than one room shall be located in an electrical closet, corridor, or other accessible space.
        3. Do not install panelboards in janitor closets or dedicated telecom rooms.
    5. Lab Panels – limit available short-circuit current to under 10,000 AIC, this does not supersede the requirements outlined in other sections of the standards. Discuss current-limiting solution with Engineering Services.  Provide main breaker, door with lock, and tamperproof screws.
    .02 Guide Specifications
    1. Design Professional shall carefully review and edit the guideline specifications below, adapting them as needed to achieve application-specific, fully developed specifications for each project.
    2. These shall be edited using the process described in the instructions contained at the beginning of the document.  Proposed modifications shall be reviewed with OPP Engineering Services.
    3. Finalized version shall be included in the project contract documents.  Use of other specifications is not acceptable.
    Document Version Date Description
    Panelboard Guide Specification.docx June 2016 University’s guide specification for Panelboards; to be used by the design professional.
    Panelboard Datasheet.docx June 2016 Typical University Panelboard Datasheet for the Professionals use. The datasheet instructions are found in the guide specification and a sample is found in Division 26 00 00.

     

    26 24 19 Motor-Control Centers

    .01 General
    1. Motor Control Centers
      1. Structures shall be totally enclosed, dead front, free standing.  Provide guide rails for control units, accessible wireways and terminal blocks for control wiring.  Individual buckets must be of the draw-out design capable of safe removal (with door shut and latched) without de-energizing the common bus, to permit compliance with latest edition of NFPA 70E.  Provide product similar to Eaton/Cutler-Hammer I.T. FlashGard.
      2. Each starter shall have two normally open and two normally closed auxiliary contacts wired to the terminal blocks, hand, off, auto switch, green run light, red off light.  All indicating lamps shall be LED.
      3. Starters shall be wired so that upon loss of electrical power, they revert back to automatic operation when power is restored.
      4. The motor control center shall be sized for a minimum 25 percent spare capacity, minimum 1 bucket space per upright.  Size spaces to accommodate, at minimum, one (1) each of the largest starters provided.  It shall be complete with buss bar, rails, wireways and other appurtenances so that other than new starters, no additional hardware is required for future expansion.
      5. All internal control wiring to terminate at screwed terminal strips, properly identified for connecting field control wiring.

    26 25 00 ENCLOSED BUS ASSEMBLIES

    .01 General
    1. Consider bus duct for shops and facilities with changing power requirements, as approved by Engineering Services.

    26 26 00 POWER DISTRIBUTION UNITS

    .01 General
    1. Provide units with electrical metering, networked via BACNet or Modbus that can be accessed via a web browser.

    26 27 00 LOW-VOLTAGE DISTRIBUTION EQUIPMENT

    26 27 13 Electricity Metering

    .01 General
    1. Provide provisions for digital meter within isolated compartment integral to the service entrance equipment.  Compartment shall include CT’s on a shorting block and voltage connection brought to a fuse block with disconnect (mount CT’s and voltage connection ahead of the main).  PSU Utilities will install service metering. Compartment shall accept a Square D circuit monitor style meter.  Provide data connection from the meter location back to the nearest data closet. 
      1. Sub-meters - When approved, sub-meter location(s) shall have provisions to match those above and shall be co-located within an isolated compartment integral to the service entrance equipment.  Provide communication interconnection back to the service entrance meter.  Confirm type of meter provisions required with Engineering Services.
      2. Distribution panels, ATS’s (where required by ES), and other equipment that does not have space for an integral meter compartment shall incorporate a stand alone meter cabinet, Hoffman #A1412CHFL (14”x12”x6”) or similar.  Provide provisions for PSU meter per paragraph A.

    26 27 26 Wiring Devices

    .01 General
    1. Receptacles
      1. Receptacles shall be rated 20A, specification grade.  Install with ground pin up or left.
      2. All requirements for special receptacles shall be discussed with Engineering Services.
      3. Receptacles shall be provided at least every 50 feet, in all corridor areas, for operation of floor care equipment.
      4. Class 1 Critical Research – provide dedicated twist-lock receptacle on “Standby” (NEC 702 optional standby systems) system power.  Provide equipment with a twist-lock cord and cap assembly including an engraved brass tag (consult with Engineering Services for labeling).  Engrave outlet cover to read “Class 1 Emergency Power” and the panel/circuit feeding the load.  Any load with this designation must be reviewed and approved by Engineering Services.
      5. Lab receptacles – utilize stainless steel cover plate and require engraved nameplate with panel and circuit number feeding outlet.  Color code per below.
      6. Flat screen TV - Use a 2-gang recessed combination receptacle and CATV outlet similar to the Arlington Industries indoor “in-box”, Leviton “recessed entertainment box”, or approved equal.
      7. Refer to 26 05 53 - Identification for Electrical Systems for further labeling requirements.
    2. Switches
      1. Local wall switches shall be heavy duty, specification grade, quiet operating rocker or toggle type, 20A, 120/277V.
      2. Require labeling of switch cover plate for three (3) or more devices ganged together.
    3. Color Coding:
      1. Cover Plates - match normal power device color, unless otherwise approved.  Stainless steel for labs and similar spaces.
      2. Normal Power Device - white, almond, or ivory; as selected by the consultant.
      3. Emergency Power Device - Red
      4. Standby Power Device - Blue
      5. UPS/Clean Power Device - Gray.  Require engraved nameplate in BLACK or BLUE background depending whether fed by Normal or Standby source.
      6. SPD Receptacle - Standard device with Blue cover, label "SURGE PROTECTED".
      7. Isolated-Ground Receptacle - Orange, label cover "ISOLATED GROUND".
      8. Other Type - as approved.

    26 28 00 LOW-VOLTAGE CIRCUIT PROTECTIVE DEVICES

    26 28 16 Enclosed Switches and Circuit Breakers

    Provide equipment by the same manufacturer as the service entrance equipment.

    26 29 00 LOW-VOLTAGE CONTROLLERS

    26 29 23 Variable-Frequency Motor Controllers

    .01 General
    1. The Design Professional shall carefully review and edit the guide specification in the table below with respect to application-specific project requirements.  Proposed modifications shall be reviewed with OPP staff.
    2. Finalized version shall be included in the project contract documents.  Use of other specifications is not acceptable.

     

    Document

    Version Date

    Description

     OPP VFD GuideSpec

     August 1, 2014

     This guide specification is intended to provide the Design Professional with general OPP minimum requirements for Variable Frequency Drives in typical HVAC motor applications

     

    26 30 00 FACILITY ELECTRICAL POWER GENERATING AND STORING EQUIPMENT

    .01 Essential (Emergency and Standby) Power Systems
    1. Emergency power source at the University Park Campus should typically be the campus “emergency” and, when required, the campus “standby” cable systems (4160Y/2400V).  Coordinate availability with Engineering Services.
    2. Where the emergency cable system is not available an engine driven generator shall be provided.  Emergency system distribution voltage should be 480Y/277V or 208Y/120V for three phase installations (greater than 50 KVA) and 240/120V for single phase installations (less than 50 KVA).  For further requirements, refer to 26 32 13 Engine Generators
    3. Wiring from each branch of the essential power systems shall be kept separate from each other and the normal power system.
    .02 Life Safety Power
    1. The Life Safety (NEC 700, code required emergency systems) power source at the University Park Campus shall be the campus “emergency” cable system (4160Y/2400V) wherever possible.  Coordinate availability with Engineering Services.
    2. When provided by the University “emergency” cable, installation shall include:
      1. Primary fused disconnect switch with current limiting fuses and lighting arrester
      2. Dry type, high-efficiency transformer
      3. Secondary overcurrent protection
      4. Transfer switch
      5. Provide provisions for power meter (meter provided by PSU).  Provisions shall match those as noted in Electricity Metering section.
    3. Life Safety service Loads shall include, but not be limited to:
      1. Egress lighting
      2. Exit signage
      3. Fire alarm system
      4. Sprinkler equipment
      5. Smoke detection system
      6. Telephone equipment
      7. Building Automation System infrastructure equipment
    .03 Critical Power
    1. Installation only to occur when approved by Engineering Services.  The Critical Branch (NEC 701, legally required standby systems) power source at the University Park Campus shall utilize the campus “standby” cable system (4160Y/2400V), wherever possible.  Coordinate availability with Engineering Services.
    2. When provided from the “standby” cable, installation shall include same components as the Life Safety Power system
    3. Critical service Loads shall include, but not be limited to:
      1. Elevator, but only when required by AHJ
      2. Animal rooms
      3. Other loads as required by AHJ
    .04 Standby Power
    1. The Standby Branch (NEC 702, non-required standby systems) power source at the University Park Campus shall utilize the campus “standby” cable system (4160Y/2400V) wherever possible.  Coordinate availability with Engineering Services. 
    2. When provided from the “standby” cable, installation shall include same components as the Life Safety Power system.
    3. Standby service loads shall include, but not be limited to:
      1. Class 1 (irreplaceable) research loads shall be determined by each College.  Utilize dedicated breaker and single twist-lock receptacle per “Devices” section.  Coordinate these loads with the Engineering Services so that they can be numbered and tracked.

    26 32 00 PACKAGED GENERATOR ASSEMBLIES

    26 32 13 Engine Generators

    .01 General
    1. When use of a generator is approved by Engineering Services, coordinate manufacturer, silencer type, fuel type, amount of fuel storage, and other options.
    2. Equipment shall not be installed on building roof or other locations that are difficult for service and replacement.
    3. 500 kW and above, discuss the use of paralleling equipment with Engineering Services, to allow for testing under load and include demand side reduction.
    4. Emissions - Internal combustion engines rated at greater than 100 brake horsepower for use at the University Park campus must comply with Section 01 41 00 Regulatory Requirements as well as the following:
      1. Design professional must review all applicable emissions regulations including, but not limited to, Sub parts to EPA 40CFR60 and EPA 40CFR63.
      2. One manufacturer should be the base bid, and the “equals” as bid alternates so that the material costs can be compared versus each engine pollutants during the bid process.  Non-responsive bidders may be eliminated from consideration.  Note that the successful bidder will be judged only partially on the cost, the emissions data will also weigh heavily in the final equipment selection.
        If the engine is to be utilized as other than a standby source, these emission limits will have to be supported by data collection.  Professional shall specify equipment to collect, record, and report such data. Discuss provisions and costs of installing CEMS (Continuous Emissions Monitor System) and CPMS (Continuous Parametric Monitoring System) equipment with Engineering Services.
    .02 Guide Specifications
    1. Design Professional shall carefully review and edit the guideline specifications below, adapting them as needed to achieve application-specific, fully developed specifications for each project.
    2. These shall be edited using the process described in the instructions contained at the beginning of the document.  Proposed modifications shall be reviewed with OPP Engineering Services.
    3. Finalized version shall be included in the project contract documents.  Use of other specifications is not acceptable.
    4. Document Version Date Description
      Engine Generators Guide Specification.docx June 2016 University’s guide specification for Engine Generators; to be used by the design professional.
      Engine Generators Datasheet.docx June 2016 Typical University Engine Generators Datasheetfor the Professionals use.  The datasheet instructions are found in the guide specification and a sample is found in Division 26 00 00.

     

    26 35 00 POWER FILTERS AND CONDITIONERS

    26 35 33 Power Factor Correction Equipment

    .01 General
    1. Building power factor shall be, at minimum, 0.95 lagging.  Provide central dynamic PF correction at each normal power service entrance as a deduct alternate (estimate the amount of capacitance required and dedicate floor space in the main electrical room). 
    2. For main-tie-main systems, provide separate dynamic PF correction at each end, each not less than 0.95 lagging when feeding each side of the gear separately.  Specify a second set of CT’s, one (1) on each side of the tie breaker, connected in parallel with the CT on it’s side of the main.  Each “tie” CT must be wired in reverse polarity to the main so that the system works properly with the tie closed. 
    3. Final capacitor selection shall occur within 6 months after building occupancy and shall be based upon actual field measurements at that time.
    4. Coordinate sizing with Engineering Services. 

    26 36 00 TRANSFER SWITCHES

    .01 General
    1. Transfer switch shall be similar to ASCO 4000 series or ASCO 7000 series.  Discuss the following options with Engineering Services: 
      1. Overlapping neutrals on systems with ground fault protection
      2. Closed transition (for generator systems only)
      3. Paralleling (for large generator systems only)
      4. Delayed transition
      5. Bypass Isolation (for building standby loads requiring maintenance without interruption, not typical for Emergency or Elevator ATS's)
    .02 Guide Specifications
    1. Design Professional shall carefully review and edit the guideline specifications below, adapting them as needed to achieve application-specific, fully developed specifications for each project.
    2. These shall be edited using the process described in the instructions contained at the beginning of the document.  Proposed modifications shall be reviewed with OPP Engineering Services.
    3. Finalized version shall be included in the project contract documents.  Use of other specifications is not acceptable.
    Document Version Date
    Description
    Transfer Switches Guide Specification.docx
    June 2016
    University's guide specification for Transfer Switches to be used by the design professional
    Transfer Switches Datasheet.docx
    June 2016
    Typical University Transfer Switches Datasheet for the Professional use.  The datasheet instructions are found in the guide specification and sample is found in Division 26 00 00 

      26 40 00 ELECTRICAL AND CATHODIC PROTECTION

      26 41 00 FACILITY LIGHTNING PROTECTION

      .01 General
      1. For new buildings, major renovations, and additions, perform a lighting risk assessment per NFPA 780.  Consult with Engineering Services to determine if a lightning protection system is required. 
      2. System components shall be copper.
      3. System installation shall be concealed within the building structure.
      4. Design per NFPA 780 and require a U.L. Master Label.

      26 43 00 SURGE PROTECTIVE DEVICES

      26 43 13 Surge Protective Devices for Low-Voltage Electrical Power Circuits
      .01 General
      1. Service Entrance – Provide SPD at each building service.  Unit should typically be 240 kA per phase, 120 kA per mode (including all phases and phase to ground), but confirm actual rating with Engineering Services.  Unit to have disconnect and field replaceable MOV’s. 
      2. Panelboard - Provide SPD at panels serving predominantly computer loads (server rooms), any exterior loads, and as directed.  Unit should typically be 160 kA per phase, 80kA per mode (including all phases and phase to ground), but confirm actual rating with Engineering Services.
      3. Integral mounting within the electrical equipment is preferable, but surface mounting is acceptable, as approved by Engineering Services (keep the leads to the bus 60 inches or less).  
      4. Unit shall comply with most recent edition of UL 1449 and UL 1283.

      26 50 00 LIGHTING

      .01 General
      1. Design shall follow PSU AD64 Energy Conservation Policy.
      2. All interior and exterior lighting controls shall be designed, deployed and commissioned in accordance with the PSU Lighting Control Matrix. Areas not specifically addressed in the matrix shall be coordinated with PSU Engineering Services.
      Document Version Date
      Description
      26 50 00-Lighting-PSU
      Lighting Control Matrix.pdf

      July 2016
      University's required interior and exterior lighting control standards; to be used by the Design Professional

      26 51 00 INTERIOR LIGHTING

      .01 Lighting Design
      1. Base bid shall utilize dimmable LED source for all general lighting.  Discuss luminaire application with Engineering Services.  Although LED is preferred, certain areas such as Mechanical, Electrical, and Telecom may use T8 lamping if approved by Engineering Services.  The use of LED will save energy, reduce material sent to recycling, decrease maintenance costs, eliminate Mercury use, and save money on lamp replacements.
      2. The professional shall submit PDF computer generated point-by-point calculations of most interior spaces to Engineering Services for review.  The use of certain “typical” rooms shall be acceptable except when the amount of fenestration or the room orientation changes.  Show calculations for each space without daylight contribution as well as with daylight contribution and lighting controls.  Point levels shall be legible, shown on a scaled drawing.  All pertinent calculation parameters shall be indicated, highlight where the design is non-IES compliant.  Engineering Services will provide direction and variance where deemed adequate.  Utilize AGI-32 full calculation mode or similar program, as approved by Engineering Services.
      3. The Illuminating Engineers Society Lighting Handbook, current edition, shall be used as a standard for lighting levels.  Provide a spreadsheet showing all room names and numbers along with target illumination levels.  For television studios and classrooms used for TV production, consult Engineering Services for guidelines.
        1. Refer to 26 00 01 .10 - B Elevator Service and Support for applicable illumination requirements.
      4. Medium and high bays in shops, lobbies, etc. shall be LED.  Drivers must be rated for high temperature environment.
      5. Provide a PDF copy of the Luminaire fixture cutsheets with every review submittal showing lighting layouts.  Booklet shall be in color and include the light fixture schedule as well as target illumination levels and proposed lighting controls. Include point-by-point calculation results and summary table with submittals.
      6. Specify the proper disposal of mercury containing lamps per PSU Policy SY-31 and PCB ballasts per PSU Policy SY-26 for all renovation work.
      7. Include the luminaire fixture schedule within the drawings, not within the specifications.  As-built drawings shall include final installed luminaire information.
      .02 Lamps
      1. Unless otherwise approved, 48-inch linear fluorescent lamps shall be "extra-long life", either full-wattage (32-watt) T8, or the reduced wattage (28-watt) T8.  Typically use low-wattage but confirm selection with Engineering Services.
      2. The use of other fluorescent lamps is discouraged.  Linear T5HO (high-output ) fluorescent lamps are allowed where design applications exist, but only as approved by Engineering Services. 
      3. Compact fluorescent lamps shall not be specified.  LED luminaires or lamps shall be specified instead.
      4. Coordinate other  lamp wattages and styles with Engineering Services prior to specification.
      5. All fluorescent lamps will typically incorporate a 4100 degree Kelvin color temperature and a minimum CRI of 82.
        1. Qualifying extra-long life 32 watt T8, 48 inch linear lamps are as follows:
          1. GE Super Long Life:  F32T8/SXL/SPX41/ECO
          2. Philips XLL:  F32T8/TL841/XLL/ALTO
          3. Sylvania Octron XP/XL:  FO32/841/XP/XL/ECO3
        2. Qualifying reduced wattage T8, 48 inch linear lamps are as follows:
          1. GE Ecolux UltraMax:  F28T8/XL/SPX41/ECO
          2. Philips XLL:  F32T8/ADV841/XLL/ALTO 28W
          3. Sylvania Octron XP/XL:  F028/841/XP/XL/SS/ECO3
      6. Do not use incandescent lamps, unless specifically approved by Engineering Services.  When allowed, provide the following:
        1. “A” lamps shall be long-life, rated 125 volts, with inside frost.
        2. MR-16 lamps, up to 50 watt, shall be replaced with LED equivalent.
        3. Any wallbox dimmers or dimming system shall be set to only allow lamp operation to 90% output.  This is to conserve energy as well as to extend lamp life by double.
      7. Require that the contractor obtain all similar lamp types through one source from a single manufacturer.
      8. Dimming: All dimming luminaires shall be LED.  Most applications only require a minimum dimming range of 5% to 10%.  Confirm the use of 1% dimming with Engineering Services.
      9. CFL Lamp Disposal and Cleanup:  Refer to PSU Environmental Health and Safety data sheet for disposal and/or cleanup of broken CFL lamps.
      10. LED shall be used instead of CFL for all applications (downlights, decorative luminaires, etc.).  Specify luminaire with a minimum lumen output (typically 1000 or 2000 lumen), minimum CRI of 80, minimum L70 of 50,000 hours, and minimum efficiency of 70 lumens per watt.  Require testing to IES LM-79 and LM-80 standards and life calculations based on IES TM-21.  CCT shall be 4000K.  Chips shall be binned to no more than a 2-step MacAdam Ellipse.  Consult Engineering Services as to acceptable manufacturers.
      11. LED screw-in lamps using medium base, GU24, GU10, bi-pin etc.  shall be approved by Engineering Services prior to specification.  PSU prefers purpose-built LED luminaires over socket based solutions.
      .03 Ballasts & Drivers
      1. Fluorescent ballasts shall be NEMA “premium” efficiency, electronic, CBM and ETL approved with a sound rating of A.  Ballast shall also be Class P, thermal cut-out switch, rated where required by U.L.  Investigate use of high or low ballast factor as part of the illumination calculations.  Linear ballasts shall be as follows:
        1. PRS (programmed rapid start ballast) with parallel lamp operation – use with occupancy sensors or in frequent switching applications.
          1. Advance “Optanium” (PRS)
          2. GE “UltraStart”
          3. Sylvania “PROStart”
          4. Universal “ULTim8” (PRS, HE)
        2. IS (instant start ballast) – use with manual switched lighting and unswitched emergency luminaires.
          1. Advance “Optanium” (IS)
          2. GE “UltraMax”
          3. Sylvania “QHE”
          4. Universal “ULTim8” (IS, HE)
      2. Provide label sticker on each fluorescent luminaire ballast chamber (in 1/8” lettering) to read either “___V; Instant-Start; _.__ Ballast Factor” or “___V; Program-Start; _.__ Ballast Factor” (insert the voltage and ballast factor in each underlined space).  As an example, label might read “120V; Program Start; 0.88 Ballast Factor.”  Label is to be visible when luminaire cover is opened or, for indirect luminaires, when viewed from a ladder looking into the fixture.
      3. LED drivers shall have the following characteristics (unless approved by Engineering Services):
        1. Maximum drive current:  350mA.
        2. Minimum Efficiency:  85%.
        3. Operating Temperature Range:  -40°C to 50°C.
        4. Minimum Rated Life:  50,000 hours.
        5. Dimming range:  100% to 10%
        6. UL Class I or II output.
        7. Power Factor:  90%.
        8. Total Harmonic Distortion:  20%.
        9. Comply with FCC 47 CFR part 15 non-consumer RFI/EMI standards.
        10. Consult Engineering Services as to acceptable manufacturers.
      4. Specify an in-line disconnect to meet NEC.  Further require that the lighting manufacturer provide a “wire nut” connection on the load side of the disconnect to facilitate ballast replacement. Refer to picture below:

        Drawing 2
      .04 Luminaires
      1. All luminaires shall be UL or CSA/US approved and labeled.
      2. Lens shall be 100% virgin acrylic injection molded prismatic diffusers meeting the ASTM specifications for methacrylite molding compounds D.788-69A.  Minimum lens thickness shall be 0.125”.
      3. In mechanical rooms, storage rooms, and other unfinished areas consider lensed fluorescent strip lighting with wire guard protection.  LED technology may be considered pending cost evaluation or as directed by Engineering Services.
      4. Classrooms
        1. For ceilings up to 10 feet, use high quality lensed "volumetric" recessed LED luminaires. Fixtures shall incorporate 0-10v, 10% dimming LED drivers.
        2. In certain applications, utilize high quality pendant mount indirect/direct lighting (with fully separate indirect and direct components) for large lecture halls, as long as luminaires don’t interfere with sight-lines and ceiling-mount projection equipment.
        3. Refer to the classroom committe recommendations for additional information.
      5.  Consider high quality pendant mount indirect/direct LED lighting for laboratories.  Provide 2-level switching and occupancy sensing.  Incorporate daylight harvesting as appropriate.
      6. Use volumetric LED lighting for most office and common space lighting deployments, Review all other deployment types with Engineering Services.
      7. HID luminaires shall not be used indoors.
      .05 Installation
      1. When approved, recessed 2x2  luminaires shall be installed such that they are aligned in the same relative orientation from one fixture to the next.  Confirm the use of this luminaire type with Engineering Services prior to specification.
      2. Cleaning:  All luminaires shall be thoroughly cleaned and clear from dust, paint, construction debris and fingerprints after all other trades are complete, but prior to the date of substantial completion.
      .06 Commissioning
      1. Require that the lighting control elements be properly set and tested for optimal operation.  Commissioning agent shall provide a report for the following systems (edit as required for the project):
        1. Daylight harvesting
        2. Occupancy sensors
        3. Interface of BAS for CCS dusk/dawn signals.  Also review the settings of the BAS CT's and run tests to confirm when CCS is signaled due to loss of multiple lamps/ballasts
        4. Dimming Systems
        5. Emergency relays (similar to Bodine GTD)
        6. Networked and non-networked digital lighting control systems including all control system function, scheduling event, and networking operational parameters. Commissioning will not be considered complete until the University provides assigned IP addresses for the networked system and communication is proven successful.
      2. Engineering Services shall be invited to attend these sessions.  Provide at least 7 days notice prior to any session.
      .07 As-Built Documentation
      1. Require that the Luminaire Schedule be emended on the as-built documents to reflect the actual products installed.
      2. Require that an Excel spreadsheet of the as-built Luminaire Schedule is provided to PSU that includes the information above, including warranty information of lamps, ballasts, LED modules, LED drivers and contact information regarding each luminaire and/or component.
      3. Require that all digital lighting control systems devices be located and labeled to reflect actual products installed and final locations.
      .08 Spare Parts
      1. Discuss with Engineering Services what spare parts to require in the specifications.  Typically require the following;
        1. 10% of each lamp type, minimum of five (5).
        2. 10% of each ballast or driver, minimum of five (5).
        3. 5% of each LED module type, minumum of two (2) of each.  On projects with a large number of a single type, limit the number of spare parts as they will become outdated quickly.
        4. 10% of replacement lenses and globes, minimum of three (3) of each.  Note specifically to which luminaire types this applies and reference the spare parts in the luminaire schedule.  If decorative bowls are large, confirm with the end user whether they have space to store these materials.

      26 52 00 EMERGENCY LIGHTING

      .01 General
      1. Each building shall be equipped with an egress lighting system as required by the Pennsylvania Department of Labor and Industry or other applicable code(s).
      2. Provide emergency lighting along the path of egress, including the exterior of a building and ending at a public way (or as approved by Engineering Services).
      3. All egress lighting (which includes stairwell lights, exit lights, selected corridor lights), fire extinguisher identification lights, and elevator cab lights shall operate twenty-four (24) hours a day and shall be connected to the Life Safety panel.  There may be some deviation from this depending on the type emergency lighting installed and the amount of daylight available in any given space. 
      4. Battery type emergency lighting is not allowed without prior approval from Engineering Services. Battery type emergency lighting should be proveded in all interior building spaces housing the life-safety/stand-by power source (generator), or inside an exterior walk-in enclosure where deployed.
      5. Stairwells, lobbies, hallways and entrances shall have ample lighting to allow for night cleaning.  Wall mounted ADA compliant fixtures with integral occupancy sensors and dimming drivers shall be provided for step-dim operation.   Utilize the Lamar Lighting “VOL” LED series, Lumax “CODLED”, or equal luminaire.
      6. Do not use of lamps with end-of-life protection (compact fluorescent and T5) in Normal/emergency lighting applications.  Ballasts for these lamps have “end of life” circuitry that can turn off lamps in certain power fluctuation conditions and leave the building without egress lighting until fixtures are de-energized and re-energized.  Specify these ballasts to have automatic re-strike capability.
      7. Illuminate the corridor-side elevator landing sills to 10 fc maintained (minimum).  Do not switch any luminare required for this purpose.
      8. All lighting in the building main Electrical Room housing the main switchgear/switchboard lineup shall be connected to a normal/emergency source. Luminaries in this space shall be switched with select luminaries unswitched, operating 24x7.  Coordinate layout and switching with Engineering Services.

      26 53 00 EXIT SIGNS

      .01 General
      1. Exit lights shall be green LED and have stencil face with green letters.  In small renovation projects, red LED may be used to match existing signs.
      2. Flush mount types are desirable because they are more vandal-proof.  Consider vandal-resistant models for dormitory design.
      3. Self-contained exit signs powered by a radioactive source (tritium or similar) are not acceptable.
      4. Equipment shall be UL or CSA/US approved and labeled.

      26 56 00 EXTERIOR LIGHTING

      .01 General
      1. Roadway and Open Parking Area Lighting
        1. Light Source:  Light sources for roadway and open parking area lighting shall be 4100K LED. Discuss the use of lower kelvin temperature LED sources with Engineering Services where University property is adjacent to residential areas.
        2. Luminaire:  Luminaire shall utilize a cut-off optical assembly, LED source, and IES distribution as required to maintain recommended lighting and uniformity levels.  Luminaires shall be rectangular in shape and conform to a “shoebox” design.  Integral driver shall be 0-10v dimming, multi-voltage or as directed by Engineering Services.  Luminaires shall be similar to Lumark Ridgeview LED series, finished dark bronze with a 10 inch arm for connection to square pole.  Any exception to this luminaire must be approved by Engineering Services Architect prior to the final design submission.
        3. Pole:  Poles shall be 25 ft, 5” square, non-tapered fiberglass with handhole at base, finished dark bronze.  Professional shall coordinate final height of poles with local ordinance stipulations and other University requirements.  Basis of design for pole is Shakespeare, series AR (heavy duty with metal sleeve inside pole base).  Allow equal by CMT or as approved by PSU Engineering Services.  Use of poles lower than 25 ft is discouraged and must be approved by Engineering Services.
          1. For aesthetic reasons, a 4" square pole may be considered for the Lumark Ridgeview or other luminaires of similar size.  Pole manufacturer must approve in writing that the smaller pole meets appropriate wind loading for the application.  Use caution in applying this pole size to a competitive bid as many shoebox luminaires would be inappropriate on a 4" pole (both in size and wind loading).
        4. Controls:  Contact Engineering Services to discuss the use of automatic controls to reduce illumination levels in parking areas to 35% based upon activity in the area.  Discuss the use of individual versus group control.
          1. Typically apply pole-mount directional sensor(s) to provide adequate coverage.
          2. Luminaire-mount sensors are not acceptable unless the coverage is a minimum of 90' diameter (45' any direction).
        5. Concrete Base:  Concrete bases shall utilize rebar reinforcement and embedded anchor bolts, and shall be designed to support the pole and luminaire assembly utilizing local wind load parameters and assembly effective projected area (EPA).  Bases shall protrude above grade 6” with a top beveled edge.  Bases shall protrude 36” above grade where damage from vehicles is possible.  Above grade concrete shall be finished smooth.
        6. Refer to Guideline Details list at the end of this section for PSU installation requirements.
        7. Illumination Levels:
          1. Roadway and open parking area maintained illumination levels shall comply with the following tables (Ratios listed are maximum values).  Areas not covered herein shall comply with the latest IES recommendations.  Roadway illumination levels outside of core campus shall be reviewed with Engineering Services.  Lower average levels may be acceptable.
            ROADWAYS
              Avg Maintained
            FC (Min)
            Avg/Min
            Ratio (Max)
             Roadway Illumination @ Grade
            1.50 3  :  1

            BUS PULL-OFF AREAS
              Avg Maintained
            FC (Min)
            Avg/Min
            Ratio (Max)
            * Bus Pull-Off Area Illumination @ Grade
            2.50 3  :  1

            * Bus pull-off area shall include the area of roadway traversing the length of the bus pull-off and all roadway pedestrian crosswalks within the area of the pull-off.

            EXTERIOR OPEN PARKING FACILITIES
                            
            General Parking &
            Pedestrian Areas         
            Vehicle Use Only           
            Activity
            Level
            Min FC
            @ Grade
            Avg/Min
            Ratio (Max)
            Avg FC
            @ Grade
            Avg/Min
            Ratio (Max)
             *High 0.9 4  :  1
            2.0 3  :  1
             Medium 0.6 4  :  1
            1.0 3  :  1

            * Beaver Stadium and Jordan Center are considered areas of high activity levels.
        8. Calculations – The professional shall submit two (2) copies of computer generated point-by-point calculations to Engineering Services for review.  Point levels shall be legible and plan to scale.  All pertinent calculation parameters shall be indicated and highlighted where non-compliant.  Engineering Services will provide direction and variance where deemed adequate.
        9. Sub-metering of Parking Lots – Provide provisions for Square D power meter (actual meter by PSU) for all parking lots.  Provisions shall match those as noted in “Electricity Metering” section.  Confirm requirements with Engineering Services.
      2. Walkway Lighting, University Park Campus:
        1. Light Source:  Light source for walkway lighting shall be 10,000 lumen LED with a minimum color rendering index (CRI) of 82 and a correlated color temperature of 4000K unless directed by Engineering Services.
        2. Driver:  Luminaire shall include the electronic dimmable driver dual-rated at 120V and 277V.
        3. Luminaire:  Luminaire shall be conical shaped, low profile, incorporating a pressure die-cast UV and weather resistant black top shade, vandal resistant high impact UV stabilized clear injection molded polycarbonate enclosure and a three-arm support.  Source shall be concealed by use of a Conical white opal acrylic diffuser that creates a symmetrical round type V distribution. 
        4. Model:  Luminaire shall be Louis Poulsen KIPP, model 416.  Any exception to this luminaire must be approved by the University Architect prior to the final design submission.
        5. Pole: Pole shall be 4.5 inch diameter, round, straight aluminum pole with handhole at base, split cast aluminum base cover and shoe base. Pole shall be 12 ft in height and finished black. Pole shall be Louis Poulsen model RSA-4.5-12-Black.
        6. Concrete Base: Concrete bases shall utilize rebar reinforcement and embedded anchor bolts and shall be designed to support the pole and luminaire assembly utilizing local wind load parameters and assembly effective projected area (EPA). Bases shall protrude above grade 6” with a top beveled edge. Above grade concrete shall be finished smooth.
        7. Where sidewalks are adjacent to roadways, the roadway light source shall be deemed acceptable where the minimum lighting levels are satisfied.  Otherwise, the professional shall review alternatives with Engineering Services.
        8. Contact Engineering Services for typical CADD details.
          Division 26 - Drawing 3

        9. Illumination Levels:
          1. Walkway area maintained illumination levels shall comply with the following. Areas not covered herein shall comply with the latest IES recommendations. Walkway calculation areas (distant from roadways) shall include a 6 ft area bordering the walk on each side, illuminated to a level of one-third the levels suggested for walkways for additional pedestrian safety.  Walkways leading to a building entrance shall be designed for the specified walkway illumination levels, and not the levels set forth by IES Building Entrance requirements.
             
            Walkway
            Classification
            Avg Maintained
            FC @ Grade (Min)
             Min Vertical FC
            @ 6 ft Above Grade
            Avg/Min
            Ratio (Max)
            Roadside
            Walkways
            1.0
            1.5
             4  :  1 or less
            Walkways Distant
            from Roadways
             0.5  0.5  4  :  1 or less

        10. Calculations:
          1. The professional shall submit two (2) copies of computer generated point-by-point calculations to Engineering Services for review.  Point levels shall be legible and plan to scale.  All pertinent calculation parameters shall be indicated and highlighted where non-compliant.  Engineering Services will provide direction and variance where deemed adequate.
          2. Coordinate the method of calculating the vertical footcandle requirement for Walkways with Engineering Services.
        11. Façade Lighting – Do not light the building façade unless otherwise approved by Engineering Services.
      .02 “Site” (Walkway, Roadway, and Parking) Lighting Circuitry 
      1. All underground circuitry shall be installed in 1-1/4” PVC schedule 40 conduit with burial depths in accordance with the latest edition of the NEC, or as directed by Engineering Services.
      2. Utilize multiple phases of power for circuit (minimum of three (3)), luminaires shall be connected to alternate phases (to neutral) throughout run to avoid the loss of a single phase shutting off all lights.  When the electrical service includes ground-fault protection, utilize an interposing transformer to avoid an over-trip of a ground-fault to the upstream breaker(s), possibly including the service entrance.
      3. A direct buried handhole shall be installed adjacent to the base of each concrete pole base.  Handholes installed within grass areas shall be similar to Penncell model PE-9.  Handholes installed in concrete shall be similar to Quazite model PG, minimum 12” x 12” square OR 9” diameter round, with open bases.  Provide heavy-duty covers where subject to vehicular activity.
      4. Provide in-line waterproof fuseholders with appropriate fuse for each luminaire, installed in handhole serving the pole.  Fuse holders shall be similar to Bussman HE Style.
      5. Provide 5/8” x 8’ copper clad ground rod for each pole, installed inside direct buried handhole.  Rod shall be connected / bonded to equipment ground and pole grounding lug, where applicable.
      6. All wiring connections made at or below grade shall be waterproof with UL listed waterproof connectors.
      7. Run separate circuit(s) to each type of site lighting (roadway, parking, and walkway).  Refer to “Lighting Control Devices” in Section 26 09 00.
      8. Contact Engineering Services for typical CADD details.
      9. Control Site and Night lights with a contractor setup.  Provide upstream current limiting devices as needed based on contractor withstand rating, available system fault current, and contractor manufacturer recommendations. Review final design approach with Engineering Services.   Contractor setup shall be fail-safe using an electrically-held, normally-closed setup that turns lights ON in case of any component failure.