Information for Design of System: All design shall be maintenance based and shall be designed with attention to maintenance and repair, working elevations, working clearance, replacement costs, OSHA standards, state and local codes, and all manufacturers’ installation requirements. All design, engineering, and installation shall be done by licensed & bonded contractors, designers, or engineers.

The warranty on all electrical installations begins at the date of substantial completion. The general contractor is responsible for the warranty for both labor and material. If there is no general contractor, the electrical contractor is responsible for the labor and material.  The electrical contractor is responsible for code compliance from the beginning of the project to the end of the warranty. The electrical contractor agrees to correct all code violations at his or her expense without litigation.  Acceptance of a design by a representative of OSU does not release the designers or engineers from the requirement that the design meet all applicable codes. The designers and engineers shall remain responsible for the design to the end of the warranty period.

  1. REQUIREMENTS
    1. Equipment and Installation Guidelines
      1. During the initial planning, consult with OSU FS Electric Shop, regarding the choice of primary service voltage to be used, its location, and the capacity available.
      2. Contractor(s), Designers, and Engineer(s) are responsible for addressing all the design review comments to the satisfaction of OSU authorized representatives in order to assure the continued reliability of the University power distribution system.
    2. Safety
      1. It is important that the design meet requirements of all appropriate codes, standards and  guidelines, including, but not limited to, the following codes and regulations: State and local, UL, NEC, NESC, NFPA, NEMA, NECA, ASHRAE, ISESNA, IEEE, ANSI, ADA, IBC, and OSHA.  It is also important that all the equipment, devices and installations supplied and installed in all University’s Facilities meet high level of safety requirements, and the OSU Construction Standards. It shall also be known that the equipment, devices, and installation that fail to meet these requirements will not be accepted.
    3. Short Circuit Study, ARC Flash Study and Overcurrent Protection Study:  For all new buildings transformers or new buildings with electrical services where electrical work is being performed a short circuit study, an arc flash study and an overcurrent protection (coordination) study shall be provided.
      1. The starting point of each study will be one overcurrent protective device “upstream” of the starting point of the scope of work of the project and terminating at the farthest point “downstream” affected by the “upstream” changes.
      2. Each study shall include the elementary diagram of the circuit being analyzed.
      3. The short circuit study shall depict the available fault currents at critical points in the distribution system. The study shall indicate the fault rating of the equipment being analyzed and designated with a “pass”/”fail” marking. Where available currents exceed the short circuit ratings of the equipment, the equipment shall be revised to a component with a higher short circuit withstand rating.
      4. The arc flash study shall be performed in accordance with NEC, NFPA and OSHA safety standards. Available fault currents shall be shown on the elementary diagram at critical points in the distribution system. The PPE level shall be provided at all switchboards, panels, disconnect switches, starters and similar electrical components with arc flash labels provided. OSU’s goal is to have, and the Designer/Engineer should design, a system such that no more than PPE Class 1 is required for maintenance of any electrical equipment with the exception that in main electrical rooms, PPE Class 2 is acceptable.
      5. Categories of PPE as described in NFPA 70E are:
        1. (View Categories of PPE as described in NFPA 70# chart at end of this Section)
      6. The coordination study shall be provided to assure both overcurrent and short circuit selective coordination provides an orderly shutdown and minimizes extent of outages.
      7. These studies shall be part of the design services.
    4. Equipment belonging to other University Departments shall not be installed in Facilities mechanical or electrical rooms, unless permission is given by OSU FS Director in writing.
    5. PROHIBITED MATERIALS AND CONSTRUTION PRACTICES:
      1. Extra flexible non-labeled conduit or non UL listed conduit.
      2. Plastic conduit for interior electrical use, except that PVC conduit may be used for power circuits below basement concrete floors in corrosive environments, and for ground wires in any location, or with approval from the OSU FS Electrical Shop. The transition from PVC to steel shall be made below the floor.
      3. Aluminum wiring/bussing shall not be used.
        1. Use of aluminum plated bus and aluminum wound transformers is prohibited.
      4. Use of incompatible Materials: Aluminum fittings and boxes shall not be used with steel conduit. All materials in a raceway system shall be compatible.
      5. Use of wire ties to support conduit.
      6. Use of wood strips and wood screws to support lighting fixtures.
      7. Direct burial electrical cable.
      8. Electrical ducts crossing above gas piping.
      9. Ducts within ten (10) feet of a buried steam line in any direction. If it becomes necessary to cross a steam line, acceptable insulation of the crossing must be approved by the OSU FS Electric Shop.
      10. Hard insulated wire connectors, which have Bakelite, are prohibited.
      11. Dimmable lighting unless permission is obtained in writing from the OSU FS Electric Shop. See “Lighting Control” in this Division.
      12. Armored or metallic BX cable. (AC, MC, or BX)
      13. Nonmetallic sheathed cable.
      14. Flat conductor cable type FCC, under carpet, etc.
      15. Powder metal die cast connectors, fittings, and couplings.
      16. Locating equipment that requires access or ventilation less than four (4) feet from a wall, fence, or other screening material, including but not limited to,  electrical equipment that permits or requires cooling; access for maintenance or cleaning, connection; and main distribution panels and equipment.
      17. Bottom fed switches, breakers, or fuses.
      18. Switches in which the blades pivot on the top.
      19. Switches, breakers, etc. that require greater than 75 pounds of force on the operating handle.
      20. Irrigation controllers on shared circuits.  See OSU Construction Standard 32 80 00 for more guidance on irrigation.
      21. Use of cable tray with medium voltage conductors.
      22. Use of busway other than as permitted in “Busways” of this Division.
      23. Use of busway, for panel risers, without a means of disconnect. Individual disconnect is required for each panel.
      24. Drilling or tapping of existing bussing in panel boards, switchboards, and motor control center. All spare spaces/motor buckets will have bus-ties installed.
      25. Troffers: Use of radiant ceiling panels.
      26. Lamps not listed by an approved testing lab.
      27. Lamps (light engines, ballasts, drivers) provided by only one (1) manufacturer.
      28. Luminaires that require proprietary lamps.
      29. Inverter Ballasts. (See emergency/standby systems)
      30. Entrance to an Electrical Closet from a location other than a common use space such as a hallway, exterior door, or mechanical room.
      31. Electrical panels located in offices, classrooms, ‘escort only’ spaces, or bathrooms.
      32. Use of a bushing without a lock nut.
      33. Use of communication cable tray to support power and lighting circuits/raceway.
      34. More than two (2) offices on a single circuit. Multiple circuits are allowed for a single office as needed.
      35. 15A wiring devices unless required by the NEC or specific equipment.
      36. Use of gray wire on 208Y/120 volt systems. Use of white wire on 480Y/277 volt systems.
      37. Metal conduit covers supported by a threaded body for outdoor use in corrosive environments.
      38. Piercing, push-in, or WACL type splices or connections.
      39. Without UL approval, the tapping of existing switchgear, switchboards, panel boards, and motor control centers to provide power for new feeders or equipment is prohibited in all University Facilities.
      40. Recessed luminaires that require ballast access through a 10-inch or less opening.
      41. Sharing motor circuits with power receptacles.
      42. Installation of light fixtures in a classroom, atrium, stairwell, or high bay that requires construction of scaffolding for service and maintenance; or installations without also providing the proper means for service and maintenance of said lights. Project must have approval of the OSU FS Electrical Shop for all high bay lighting above 12 feet from floor.
      43. Panel enclosures and junction boxes larger than 4 11/16 that have stamped knock-outs.
      44. Crimp connectors, except butt-splice.
      45. Flexible conduit of any type used in interior partitions or in walls as a substitute for EMT, IMC, or rigid steel conduit.
      46. Surface non-metallic raceways.
      47. Inverter ballasts.
        1. Self-luminous exit signs containing radioactive material unless specifically approved by Environmental Health & Safety (EH&S).
      48. Fixtures that require use of proprietary lamps and ballasts and do not allow use of lamps or ballasts from other manufacturers.
         
  2. ELECTRICAL MATERIALS AND METHODS
    1. All materials shall be listed by an approved testing lab.
       
  3. WIRE, CABLE, AND BUSWAY
    1. Material:
      1. Copper conductors of 98 percent conductivity shall be used.
    2. Secondary Conductors:
      1. Color Coding
        1. Color coding for 480/277V and 208Y/120V shall be as follows:
        2. (View Secondary Conductors Color Coding for 480/227V and 208Y/120V chart at end of this Section)
        3. Label neutral at termination in panels with circuit number.
      2. Solid and Stranded Wire:
        1. No. 14 AWG and smaller may be solid.
        2. No. 12 and larger shall be stranded.
      3. Minimum Size for Lighting and Power Branch Circuits: No. 12 AWG.
        1. Use No. 14 AWG stranded for control wiring and auxiliary system circuits.
      4. Field installed cords to portable equipment shall be Type ST or SO and field installed cords for normal equipment shall be Type SRDT or SPT-3.
      5. Circuit wiring through ballast channels of fluorescent fixtures shall be 600-volt, 90 degrees C insulation. Fixture must be approved for through wiring.
      6. General Use Insulation: NEC, 600-volt type THHN/THWN or XHHW.
      7. Connections in No. 10 and smaller wire shall be made with threaded-on plastic or nylon insulated wire nuts. Crimp connectors, except butt connectors are prohibited. Joints in No. 8 and larger conductors shall be made with pre-insulated mechanical lugs.
      8. Any cable, including signal, communication, and low-voltage wiring, pulled in a raceway on grade or below shall be rated for wet locations.
         
  4. WIRING DEVICES
    1. Design
      1. All wiring devices provided shall be 20A specification grade. New building devices will be ivory, white, or brown with stainless steel plates for standard and ground fault interrupter use. Isolated ground devices shall be orange with stainless steel cover plates. Emergency/standby power devices will be red and have red cover plates. For existing building, designs shall match the existing color scheme that is prevalent throughout building.
      2. Placement of receptacles in University classrooms shall be coordinated with University Media department for locations and minimums of new technology for learning.
        1. In standard size classrooms (49 students or less), provide one (1) double duplex receptacle at the front of the classroom centered under the chalkboard or marker board. Provide two (2) additional receptacles at the front of the room spaced half way between corners and double duplex receptacles. Back of the rooms to be provided with one (1) single duplex receptacle at the center of the wall. Remaining walls to be provided with two (2) duplex receptacles on each wall equally spaced.
        2. In classrooms with 50 students or more provide two (2) duplex receptacles for the front wall, centered between the corners and one (1) double duplex receptacle at the center of the wall. Provide two (2) duplex receptacles equally spaced on all remaining walls.
        3. Corridors shall be provided with duplex receptacles 35 ft. on center and a maximum of 10 ft. from each end of the corridor. These receptacles shall have separate circuits from the room circuits. In hallways and corridors adjacent receptacles shall be on alternate circuits.
        4. Lecture halls shall be provided with one (1) double duplex receptacle centered on front wall and two (2) additional double duplex receptacles equally spaced between center double duplex and corners. Provide additional receptacles throughout for cleaning. These receptacles shall be a maximum of 25 ft. on center. If lecture hall is provided with a lab bench, then provide bench with one (1) double duplex for every 8 ft. of bench.
        5. Computer labs shall be provided with at least two (2) general purpose receptacles equally spaced per wall in addition to all receptacles for computers.
        6. Mechanical room shall be provided with at least four (4) duplex receptacles (one per wall) and additional duplex receptacles where walls are 25 ft. or longer.  At least one (1) receptacle shall be fed from the emergency panel and identified as such, and at least one (1) 30 amp receptacle will be available for a portable air compressor.
        7. Projector and electronic display boards power shall be surge protected.
      3. Switches:
        1. Switches provided for all uses shall be 20A specification grade. Color scheme shall match receptacles.
        2. Switches provided at roof hatches or where provided outside of rooms they are serving shall be provided with pilot lights.
      4. Cover Plates:
        1. Generally cover plates for flush-mounted standard devices shall be stainless steel for interior use in new buildings. Where work is being performed in existing buildings, cover plates shall match the majority of the existing devices. In residential buildings covers shall be unbreakable nylon.
        2. Cover plates for exterior use shall be a type which allows NEMA 3R rating to remain while in use. Where exterior device could be exposed to vandalism, provide locking type cover plates.
        3. Cover plates shall be identified as to source (panel and circuit number).
           
  5. HANGERS AND SUPPORTS
    1. Requirements
      1. Materials for Straps and Hangers: Heavy-duty malleable iron or steel. For installation in locations above grade that are subject to moisture penetration, specify corrosion-resisting steel. Perforated straps are not acceptable.
      2. Independent Support Systems: Required for all installations.
        1. Surface outlet boxes, to which fixtures are attached, and pull boxes shall be fastened to the structure independent of the conduit system supports.
        2. Conduits above suspended ceiling shall not be supported by a ceiling suspension system.
      3. Coordination with General Construction: The Designer/Engineer shall include the following (or similar) statements in specifications for suspended lay-in ceilings:
        1. Surface mounted fluorescent lighting fixtures shall be supported from the structure above independent of any ceiling system by use of 3/8-inch all thread rods.
        2. Flush or recessed fixtures in ceilings of the suspended lay-in type shall be installed so that the long dimension of the fixture is supported on the main support member of the ceiling system. Provide at least two (2) galvanized steel safety hanger wires or safety chains, attached from the fixture housing to the structure independent of the ceiling system. Wire or chain shall withstand a 3-foot, 50-pound drop test. In addition, the Luminaire Support Requirements of NEC shall be strictly followed. Manufacturer supplied grid clips must be utilized and installed per manufacturer instructions.
        3. Suspended ceilings in new construction shall have a minimum of 10 inches clearance below the lowest building structure, duct, and equipment.
           
  6. RACEWAYS
    1. Requirements
      1. Interior Conduit and Fittings: Minimum conduit size for power circuits shall be 3/4-inch for home-runs. Minimum conduit sized for control wiring shall be ½- inch.
      2. Exterior Conduit and Fittings:  Rigid galvanized threaded UL labeled conduit shall be specified where subjected to physical damage.
        1. Threaded couplings shall be used with rigid conduit and IMC.
        2. IMC may be used in place of rigid galvanized where permitted by code.
      3. Steel Electric Metallic Tubing (EMT) UL labeled conduit may be used in interior partitions, above ceilings, and for surface application, except in corrosive and hazardous locations, where PVC coated rigid galvanized conduit is required to be used.
        1. Insulating bushings and insulated throat fittings shall be used throughout EMT installation.
        2. Compression fittings shall be used outdoors. Set screw type fittings may only be used indoors.
      4. Plastic jacketed rigid galvanized steel conduit shall be used in corrosive atmosphere.
      5. Flexible conduit used for motor make-up shall be liquid tight flexible conduit, minimum size ½ inch. Flexible conduit used for lighting fixture connections shall be steel, minimum size of ½-inch unless part of a manufactured luminaire assembly. Maximum length shall be 6’-0”. Flexible conduit of any type shall not be used in interior partitions or in walls as a substitute for EMT, IMC or rigid steel conduit. A ground wire shall be pulled in all flexible conduits. All flexible conduits shall be supported per NEC. Distance between supports as allowed per NEC.
        1. Liquid tight flexible metal conduit shall be used on flexible conduit applications exposed to outdoor or moist locations.
        2. Liquid tight flexible metal conduit shall be used in raised floor computer room applications.
      6. Rigid galvanized steel conduit shall be used outdoors, above grade, in damp locations.
      7. Conduit installed through a building wall shall have internal and external seals. Specify link seal or equivalent.
      8. Elbows used for medium voltage cable shall be long radius rigid steel.
      9. Grounding: Conduit crossing building expansion joints shall have expansion provision with grounding continuity.
         
  7. BUSWAYS
    1. Requirements
      1. The Designer/Engineer may use feeder Busways in lieu of conduit and wire where approved by the OSU FS Electric Shop.
      2. Plug-in bus shall be used in shops where the load density provides an economic advantage over panels and shall not extend into more than one (1) space. Plug-in bus shall be copper. Busway shall be used to serve one (1) room or usable space. It is prohibited for busway to penetrate a fire rated wall.
      3. Indoor busway (if used) shall be water resistant per current ANSI/IEEE Standards.
      4. If use of busway is approved by special permission for a project, Contractor shall provide 10 percent of spare busway and 10 percent of total spare switches used. This includes when busway is installed in shop areas or specially approved conditions.
         
  8. SURFACE RACEWAYS
    1. Requirements
      1. Surface raceway shall not be used in new construction except as approved by the OSU FS Electrical Shop.
      2. Surface metallic raceway with associated couplings, boxes, and fittings shall be mounted to the surface of the structure for the installation of electrical conductors and, when approved, may be used in the following locations:
        1. In dry locations.
        2. In Class I, Division 2 Hazardous (classified) locations and as permitted by National Electric Code (NEC).
      3. Surface non-metallic raceway shall not be used.
      4. Fittings and Boxes:
        1. Raceway shall have manufacturer’s finish standard prime coating suitable for field painting.
        2. The acceptable manufacturer for surface raceways shall include:
          1. The Wiremold Co. Wiremold by Legrand US
        3. All junction boxes, pull boxes, and conduit bodies above suspended ceilings shall be accessible by step ladder or lift, without dismantling the ceiling.
           
  9. UNDERGROUND RACEWAYS
    1. Requirements
      1. All underground cables of any classification shall be installed in raceway systems. All the raceways for medium/high voltage shall be 6 inches in size and all others for street lighting and other applications shall be sized in accordance with the projected electrical load growth in the vicinity. Underground raceway systems for medium/high voltage systems shall be encased in concrete. Provide a yellow marker tape 18 inches above the conduits indicating “Danger Buried Conduits”.
         
  10. SECONDARY/LOW VOLTAGE ELECTRICAL DISTRIBUTION
    1. Requirements
      1. Magnetic Interference and Mitigation
        1. Magnetic interference can pose major problems in the design and operation of electrical and electronic equipment, instruments, control systems, data processing equipment, and communication networks. This equipment frequently indicates aberrations whose sources may not be readily recognized, but which are due to magnetic interference. In general, such interference is classified as internal and external.
          1. Internal interference, created by operation of components within the system itself, can usually be eliminated or nullified by shielding the individual components and confirming the magnetic force they create.
          2. External interference is frequently caused by nearby or adjacent equipment such as transformers, medium voltage busway, or switching equipment, which generate magnetic “spikes” affecting apparatus which is not physically attached to the source of interference.
        2. Special Protective and Preventive Materials: In addition to developing a basic protection design in preventing the penetration of magnetic interference, when it is required by this Standard to Design and specify EMF mitigation plans or strategies that will prevent and solve the magnetic interference problems, the expectation of this standard is to reduce EMF to below one (1) milligauss, even in the most complex field environment.
        3. Special EMF Shielding Material: There are two means of EMF shielding that may be used to achieve effective prevention of magnetic interference or eliminate the existing problems.
          1. In fields of low intensity, use CO-NETIC AA perfection sheet because of its high initial permeability and corresponding high attenuation characteristics. In fields with high intensity, use NETIC S3-6 sheet because of its high magnetic saturation characteristics. CO-NETIC AA Perfection Annealed Sheet are available in standard gauge .014” through .062” thick, in flat sheet sizes up to 30” x 59” or full sheet of .015” thick and 36” by 120”.
          2. Installation: For wall or floor coverings, Designer/Engineer shall specify that sheets shall be butted at seams, all seams flush and tight.
          3. Fasteners: NETIC/CO-NETIC AA sheets shall be mounted to walls by non-magnetic fasteners to penetrate the shielding sheets. Hole in the NETIC/CONETIC AA alloy sheets for fasteners shall be drilled with standard metal drills (cobalt steel drill bits). Special fastening application (masonry, concrete, etc.) shall be consistent with EMF shield manufacturer’s recommended attachment procedures and EMU Building Design Standard requirements.
          4. Seams: All seams between sheets to be covered by CO-NETIC AA foil, 0.01-inches thick by 4-inches wide, with factory supplied PST backing. Apply foil centered over the sheet seams and press down tightly.
          5. Finishing: The CO-NETIC AA metal has a natural shiny, silver colored finish and will not rust. Gypsum wall board (dry wall) or approved other materials shall be applied over the CO-NETIC AA sheets after seams are covered. No magnetic fasteners are to penetrate the CO-NETIC AA sheets.
          6. Installation: All medium voltage transformers and switch gear including motor control centers that are adjacent to or under offices, computer enters/rooms, or locations that will have the use of Sensitive Electronic Equipment (SEE) shall be shielded with ferro-magnetic material.
          7. Use a minimum 10 gauge ferrous steel sheet metal on the side(s) of walls where said offices or rooms are situated to prevent moving charges that produce Electric Magnetic Field (EMF) penetration that in turn destroys or distorts sensitive electronic equipment.
          8. In order to have an effective shielding, the 10 gauge sheet metal shielding shall be overlapped at a minimum of 4-inches at every joint.
        4. Designers/Engineers shall contact the University EH&S Office for details, if there should be any questions.
      2. Transformers (Under 600 Volts)
        1. General purpose distributing transformers shall be single phase and three phase dry type, which are generally used with primaries connected to secondary distribution circuits. They shall be designed for the voltage of 120, 208, 240, 480, and 600 with ratings ranging from 500VA to 5000KVA and frequency of 60 Hz.
        2. The transformers shall be designed for continuous operation at the rated KVA for 24 hours a day, 365 days a year operation with a nominal life expectancy and greater overload capabilities in accordance with the latest ANSI-C57. The temperature rise of these energy efficient transformers shall be 80 degrees C and shall be insulated with a UL recognized 220 degree C insulation system. Transformers shall have K factor rating as recommended by current ANSI/IEEE standards, where required (i.e. computer center, lab, etc.). It shall have a 30 percent overload capability. Because of the growth of computer labs in all buildings and use of wireless computers throughout the University campus, all general purpose transformers in renovations and new construction shall be K-rated transformers.
        3. Transformers shall be designed for a low coil watt loss.
        4. Coil and Core Assemblies:
          1. Transformer cores shall be constructed with high grade, non- aging, grain-oriented silicon steel with high magnetic permeability, low hysteresis, and eddy current loses.
          2. Transformer coils shall be wound of electrical grade copper and continuous wound construction. The neutral conductor shall be rated to carry 200 percent normal phase current, when required.
          3. Enclosure shall be ventilated, heavy gauge sheet steel, primed and finished in gray baked enamel. The core and coil assembly of the transformers shall be impregnated with non-hygroscopic, thermosetting varnish, and cured to minimize hot spots and seal out moisture. The core of the transformer shall be grounded to the enclosure.
          4. Transformer sound levels shall be designed in accordance with ANSI/NEMA recommended levels.
        5. Provide minimum clearance working space of four (4) feet around transformers operating at 600 volts, nominal or less to permit ready and safe operation adjustment, repair, and maintenance.
        6. Transformers greater than 25 KVA shall not be mounted on or near walls adjacent to an office, computer room, or laboratory unless the wall is magnetically shielded.
        7. Proper ventilation and cooling shall be provided at locations where transformers are installed to prevent the temperature in the room to rise above 75 degrees F.
        8. Wall or ceiling mounted transformers shall have the floor space below permanently accessible.
        9. Transformers shall be placed on a housekeeping pad no less than 4 inches thick.
           
  11. LOW VOLTAGE SWITCHGEAR SERVICE ENTRANCE
    1. Requirements
      1. Protective Devices: Main breakers and feeder breakers or switches shall be equipped with ground fault protection as required by applicable codes. In critical applications provide coordinated ground fault protection on feeder breakers. Provide settings and coordination information with the service manuals.
        1. All circuit breakers with solid state trip units shall comply with the following standards:
          1. ANSI/IEEE – Surge Withstand Capability (SWC).
          2. ANSI/IEEE – Withstand capability of relay systems to radiated electromagnetic interference from transceivers.
        2. The maximum operating force required to open or close a switch or breaker shall not be greater than 75 pounds on the operating handle.
        3. Vacuum breakers or vacuum switches may be used with the approval of the OSU FS Electric Shop.
          1. All switches shall be top or horizontal fed to the breakers.
        4. Indicator lamps shall be LED or transformer type utilizing low voltage lamps.
        5. Shall be placed on a housekeeping pad no less than 4 inches thick.
           
  12. METERING (See Division 33 09 00, Instrumentation and Control for Utilities)
    1. Functionality Requirements
      1. Metering System: A meter with system display is required for each building, transformer, or service.
        1. Approved and acceptable meter and manufacturer for OSU Facilities is Veris E51C2 Bi-Directional Power and Energy Meter or equivalent revenue grade meter with Modbus RTU communication.
        2. Each individual KWH meter specified must have either Modbus RTU communications or impulse capability.
        3. If complete meter setup cannot be done from the front panel, any required software, cables, and keys shall be provided to the OSU FS Electric Shop.
        4. The height shall be five feet (5’-0”) from the finished floor or four and a half feet (4’-6”) from the switch pad to the center of the meter.
        5. Provide three (3) or four (4) current transformers and circuit monitor that indicate true RMS current for phase and neutral.
        6. The monitor shall provide the following information:
          1. Voltage: phase to neutral and phase-to-phase ABC.
          2. Amps: present reading and 15-minute maximum demand ABCN
          3. Kilowatt maximum demand based on 15-minute intervals.
          4. Power factor, kilo VAR, kilo VAR, hour KVA.
      2. A 6-pole GE PK-2 panel-mounted test switch installed flush on switchgear for portable test metering by OSU FS Maintenance Personnel. Specify that three (3) left poles be factory wired to the phase current transformer secondaries; wire the right hand pole No. 6 to the phase to neutral potential source. Current transformer poles shall have shorting auxiliary contacts.
        1. If the meter used for KWHR reading does not have a meter serial number on the front of the display, then an engraved name plate shall be installed below the meter with the meter serial number engraved on it.
        2. Avoid metering schemes that are only capable of measuring partial loads connected to the distribution system or electrical apparatus being monitored. Specify that the current transformers and the meter shall be installed to measure electrical load from the distribution system including fire pumps.  The fire pumps shall be connected ahead of the main overcurrent protective device.
           
  13. SERVICE DISCONNECT
    1. Requirements
      1. Fuses may be used in primary voltage services and motor controls.
        1. UL classification fuses shall be used as required for time delay and current limitation requirements of the application.
        2. Fuses for feeders and branch circuits up to 600 ampere shall be UL Class RK1 or RK5 with 200,000 AIC.
        3. Fuses for secondary service mains and feeders over 600 ampere shall be UL Class L with 200,000 AIC.
        4. Spare Fuses: Specify that a spare fuse complement be stored on existing metal shelves, metal mounting boards, or in a cabinet in the electrical switchgear room and that a typewritten and framed bill of material is mounted nearby. There shall be no combustibles stored or kept near transformers. If there is no existing storage or additional storage space is required, the Contractor shall provide a cabinet equal to Bussman SFC.
          1. Spare fuse complement shall include a minimum of three (3) or 10 percent of the total (whichever number is greater) spare fuses of each class, ampere, and voltage rating installed, including primary fuses and control circuit fuses in switchgear and any equipment.
             
  14. GROUNDING SYSTEM
    1. Requirements
      1. Drawings and Specifications: Drawings shall show ground systems, protective conduit sizes, and relative locations. Specifications and drawings shall include detailed requirements of the grounding system. A reference only to the National Electrical Code, without elaboration, has proven to be insufficient. Specifying requirements only by referencing the code is prohibited. It is required that the Designer/Engineer shall specify all requirements applicable, instead of referring only to National Electrical Code. This includes specifying the size and requirement of all grounding electrode conductors used for connecting to the ground rounds, electrode grounds in the concrete, cold water pipe and between the neutral and the equipment ground. It also includes sizing all equipment grounding conductors routed with the phase conductors. All sensitive electronic equipment (computer rooms, etc.) shall have single point grounding system originating at the service entrance ground.
      2. Transformer Grounds:
        1. Building Service Transformers: Secondary neutrals shall be grounded separately from the neutral ground at the service main, unless close coupled in unit substation construction.
        2. Low Voltage Transformers: Secondary neutrals shall be grounded in the low-voltage service equipment, as required by NEC for services.
      3. Equipment Grounds: A wire equipment ground shall be installed within the branch circuit conduit and be grounded to the cabinet of the panel board to an uninsulated ground bus. The neutral bar of the panel shall not be used for equipment grounds.
        1. Equipment grounds and the identified neutral shall not be electrically interconnected on the building side of the service ground.
      4. Convenience Outlets: Specify that a wired ground be provided for continuity of ground path from the device-grounding pole. Provide ground fault interrupter outlets in wet conditions and where required by NEC and other related codes.
         
  15. DISTRIBUTION
    1. Requirements
      1. Design: If feasible and when unit substations are provided, the secondary main breaker shall be made a part of the building distribution switchgear or switchboard. In no case shall the switchgear or switchboard or panel board be directly attached to the transformer. A minimum 12-inch transition section with solid barrier is required to reduce the transfer of transformer heat to the low voltage section. Reduction of heat transfer may be accomplished with secondary throat or ventilated transition section.
        1. When double-ended substations are provided with tiebreakers, the tiebreaker shall be key interlocked with the main secondary disconnecting means requiring the spare key to parallel sections.
      2. Equipment: Metal-enclosed switchgear or distribution boards shall be used in buildings or OSU Facilities at 600V and below for service entrance power, lighting distribution, and as the secondary sections of unit substations. Main service disconnecting, 1200 amp and larger, devices shall be individually mounted and clearly labeled. Feeder devices in the main switchboard or switchgear shall be individually mounted. Feeder devices in distribution panel boards shall be group mounted. The following components shall be specified as required:
        1. Service protectors
        2. Molded case circuit breakers
        3. Fusible switches
        4. Motor starters
        5. Low voltage AC power circuit breaker (generally limited to main or tie position)
        6. Bolted pressure switches
        7. Transfer devices or switches
        8. Instrumentation, metering, and relaying
          1. Type of Molded Case Circuit Breakers: These devices are available in the following general types:
            1. Thermal magnetic dash pot
            2. Magnetic only
            3. Integrally fused
            4. Current limiting
            5. High interrupting capacity
          2. It is required that all circuit breakers that are equipped with solid state trip unit must comply with low voltage switchgear protective devices of this Division.
            1. Air circuit breakers shall be draw out type, installed in individual compartments.
            2. Interrupting ratings of air circuit breakers and molded case breakers shall not be applied in “cascade”.
          3. The handle operating force on all equipment shall be 75 pounds or less.
            1. Provisions for Additional Circuits:
              1. Size of Switchgear or Switchboard: Select a size that will provide sufficient spare spaces, complete with bus and bus ties. A minimum of one (1) fully bussed spare section shall be provided. Provide the following spare switches at the design stage:
                1. Four (4), 100-amp/3 poles
                2. Four (4) 200-amp/3 poles
            2. Additional Section: Provide space in the bus arrangement (bus ties) for the addition of future switchgear or switchboard sections. Switchgear and panel boards shall be accessible with a 4-foot minimum working clearance on all sides requiring access.
          4. Instrumentation shall be per “Metering” section of this Division.
          5. Service to Fire Pumps: Fire pumps shall be served and protected as required in NFPA No. 20.
          6. Use switchboard instead of panel board for emergency systems for the purpose of future growth and expansion. The switchboard shall be equipped with metering systems as required in “Metering” section of this standard.
          7. When adding switches, circuit breakers, bus plugs, or motor starters to existing equipment, the Designer/Engineer shall include the following in the design documents:
            1. The manufacturer’s nameplate data including manufacturer and catalog information of the existing equipment.
            2. If the equipment is no longer manufactured (e.g., Continental, Arrow Hart, Crouse Hinds, etc.), the Designer/Engineer will contact a company that specializes in obsolete equipment and obtain the bidding information.
            3. Designer/Engineer will provide cost analysis to replace obsolete equipment with current technology.
               
  16. GENERAL PURPOSE POWER AND LIGHTING CIRCUITS
    1. Requirements
      1. System Design: Design feeders for a voltage drop of not more than 2 percent between service entrance terminals and branch circuit breakers terminals with a capacity for 30 percent load growth above initial design, unless greater growth is designated by the University in the initial planning conference.
      2. Feeders: Feeder ratings shall not be such a large percentage of the main that coordination of time and current and interrupting capacities cannot be achieved.
      3. Wiring: Specify that all feeders be installed in galvanized rigid conduit or electrical metallic tubing. (EMT)
         
  17. FEEDER CIRCUITS
    1. Requirements
      1. System Design: Design feeders for a voltage drop of not more than 2 percent between service entrance terminals and branch circuit breakers terminals with a capacity for 30 percent load growth above initial design, unless greater growth is designated by the University in the initial planning conference. Feeders shall be sized to the panel not the calculated load.
      2. Feeders: Feeder ratings shall not be such a large percentage of the main that coordination of time and current and interrupting capacities cannot be achieved.
      3. Wiring: Specify that all feeders be installed in galvanized rigid conduit or electrical metallic tubing. (EMT)
         
  18. GENERAL PURPOSE POWER AND LIGHTING CIRCUITS
    1. Requirements 
      1. Distribution panels shall only serve the resident floor or level and have three (3) or more ¾” diameter EMT stub-up spares, ending in an adequately sized, accessible junction box.
      2. Design branch circuits for a voltage drop of not more than 3 percent between the branch circuit breakers and the load. As a minimum, increase conductors a minimum of one size when 120-volt branch circuit home runs exceed 75 feet.
      3. Lighting circuits shall not be loaded to exceed 60 percent of panel breaker rating.
      4. Branch Circuit Panels: Panels for lighting, convenience outlets, small motors, and equipment shall be molded case circuit breaker type with thermal-magnetic trip and AC and DC ratings. Provide for spare circuits.
        1. Breakers shall be 20 ampere, 1 pole breakers, mounted in the panel with either bolt-on or stab-on connections.
          1. Trip rating of breakers for lighting and general use convenience outlets shall be 20 ampere. Provide other sizes, to the OSU FS Electric Shop, as required for special loads.
        2. Sub-Feed Breakers: Panels shall not have sub-feed breakers. If multiple panels are supplied from a long feeder, use sub-feed lugs or separate splice box with full size tap to panel mains.  Provide individual disconnects for isolation.
        3. 120/208 volt panel boards shall be designed to 50 percent fill and no more than 70 percent fill at completion of project. An additional panel board shall be installed where these conditions cannot be met. All panel boards shall have a minimum of four (4) ¾-inch spare conduits terminating in accessible space.
        4. When installing new branch circuit lighting panels on a project the following shall be considered:
          1. All new panels shall be 42 pole minimum. Designers/Engineers shall provide each new panel with a minimum of 30 percent spare 20 amp single pole circuit breakers.  Any additional spare locations shall have a breaker installed. Designers/Engineers shall design an additional panel when these minimums cannot be met and spear breakers shall be included.
          2. New panels shall be 200 ampere minimum for 208Y/120 volt, 3 phase, 4 wire service and 100 ampere minimum for 480Y/277 volt, 3 phase, 4 wire service. Do not provide 240/120 volt, 3 phase, 4 wire tapped delta systems. Where 240 volts is required, use of buck/boost transformers is required.
          3. Any new or existing building with 3 phase service shall only have 3 phase panels provided.
        5. Power panels shall be equipped with molded case circuit breakers of adequate interrupting capacity per NEC.
        6. Fire/smoke dampers are to have individual over current protection and disconnect. The fuse shall be sized for 125 percent for non-impedance protected motors and 200 percent for impedance protected motors. The combination over current /disconnect means shall be located within six (6) feet of the fire/smoke damper motor.  The combination over current/disconnect means shall be either a little fuse #LSSY, for one (1) Edison-base fuse and one (1) single pole toggle switch.  All fire/smoke damper overcurrent protection shall be accessible without disassembly of mechanical equipment or ceiling.
           
  19. MOTORS AND MOTOR CONTROLS
    1. Requirements
      1. Related Work: Air conditioning chiller starters and fire pump controllers shall be specified with the equipment in Divisions 21 and 23. Wiring from switchgear or switchboard to this equipment shall be specified in Division 26.
      2. NEMA and NEC Requirements:
        1. Motors and motor control equipment shall conform to NEMA voltage ratings. A motor rated at 230 volts may not be used on a 208V system. Designer/Engineer shall specify a 208V motor.
        2. Motor branch circuit protective devices shall meet the all requirements of the current NEC.
      3. Motor Control Centers: Class I, Type B with terminal strip terminations.
        1. Locations: Centers shall not be located where ambient temperature could cause derating of overload devices.
        2. Overload heater charts shall be furnished, mounted inside doors of cabinets or separately framed, and mounted outside the equipment.
      4. Reduced Voltage Starters: Motor sizes shall be such that, if the inrush current exceeds 40 percent of the building transformer rating, then motors shall be equipped with a variable frequency drive, reduced voltage starters of the closed transition auto transformer, star-delta type, solid state soft start, or current ramp starters.
      5. Operating Protection:
        1. Certification by the motor manufacturer that motors meets the voltage requirements of NEMA.
        2. Overload Relays: Polyphase motor controls shall be equipped with three (3) overload relays. Reduced voltage starters shall provide overload protection during the starting step.
        3. Provide 20 percent spare starters of each size used and provide 25 percent spare positions for additional starters. Provide space on floor for one (1) additional section and appropriately sized spare conduit run from MSG to immediate area.
           
  20. MOTOR STARTER APPLICATIONS
    1. Requirements
      1. Starters for 600V and Below: The design must conform to ANSI/NEMA ICS2-1983 (26). This is a requirement for magnetic controller ratings of 115-575V. AC motor starters and contactors may be used for controlling the circuit to the motor. This standard requires that starters should be carefully applied on circuits and in combination with short circuit protective devices such as circuit breakers, fusible disconnects that will limit the available fault current and let through energy level that the starter can safely withstand. This withstand rating must meet the requirements of ANSI/UL 508/1983 (29) and ANSI/NEMA ICS1-1983 (25), (26) which cover controls, systems and devices.
        1. The starters shall not be used without an adjacent line switch.  If unfused disconnect switch is used or installed, it must be close to each motor as much as possible. This standard forbids the installation of a remote switch with lock arrangement, switchgear, switchboard, or a unit in a control center.
        2. Each starter will identify controlled device and its location and each motor shall identify its control.
           
  21. EMERGENCY/STANDBY POWER SYSTEMS
    1. Requirements
      1. All new buildings and major renovations where labs, research equipment, or fume hoods are to be installed shall include a standby generator and system monitoring.
      2. Alternate Power Sources: Where the interruption of electric power supply to a building would result in a hazard to life, major loss of research, property, or equipment, provision shall be made for a standby supply of power to be used in the event of failure of the normal supply. Details of the plans as they apply to the project shall be explained and included in the early design development submittal and meetings. If tie-in on existing circuit or feeder is not practical at present, provision shall be made for future tie-in.
      3. Automatic Transfer Equipment: Reliable equipment and transfer switch must be specified. Where both emergency systems and standby power systems are provided, separate transfer switches shall be provided for each system. Refer to current NEC for system descriptions.
      4. Emergency/Standby Systems: It is required that provision be made by designing an emergency system/standby power source supplied by:
        1. Engine generator
        2. Separate emergency source
      5. Emergency generators shall be natural gas or diesel engines depending on the availability of natural gas and the size of the unit.
      6. Generator enclosures whall have a minimum clearance of (4) feet, unless otherwise specified by the manufacturer for air flow, and all doors and panels shall open to ninety (90) degrees.
      7. Electrical lighting and power equipment fed from an emergency/standby generator shall be identified red.  In both public and non-public areas, the equipment shall have a distinctive warning sign and indicate the location of both sources of power.
      8. An emergency/standby panel board shall be provided for the following:
        1. Exit lights
        2. Minimal hallway and stairway lighting and telephone power
        3. Fire alarms, building security equipment, and fire protection systems; this does not eliminate the need for batteries. Batteries shall be tested to indicate amp hour availability. The manufacturer shall provide documentation that indicates conformance with repaired rating to the University.
        4. Elevators and elevator rooms
        5. Emergency illumination shall be part of emergency lighting that shall include illuminating all required means of egress lighting, illuminated exit signs, stairwell lights, and all locations where emergency lighting must provide at least code required minimum illumination to allow easy and safe egress from the area involved. Inverter ballasts are prohibited.
        6. Electrical Service equipment room and mechanical room lighting
        7. Generator enclosure space lighting
        8. Building system equipment which is used to heat the building (to prevent freeze-up in the winter) to include heat pumps, condensate pumps, control air compressors, and other equipment as may be designated by the OSU Facilities Services.
        9. Motor Control Centers (MCC) that control fume hoods, sump pumps, condensate pumps, building control air compressors, and related equipment.
        10. Building automation systems
        11. Animal room exhaust
      9. Wiring for emergency systems shall be in separate conduits. Specify that all emergency system junction boxes and covers shall be painted yellow.
           a. Switches for emergency lighting circuits shall not be accessible to the public.
      10. All new generators are required to have load bank camlocks installed.
           
  22. ELECTRICAL PROVISION FOR ELEVATORS
    1. Requirements
      1. Wiring and Switching: Wiring shall be extended to heavy-duty lockable fused switches located in elevator machine room.
      2. Emergency Circuit: An emergency circuit to the elevator machine room shall be provided for the elevator cab light, fan, and equipment room.
      3. Pit Installations: Refer to Division 14. A light, light switch, and GFCI convenience outlet must be provided in the pit of each elevator, each on separate circuit.
      4. Passenger elevators that serve mechanical rooms shall be connected to an emergency generator.
         
  23. LIGHTING
    1. General Requirements
      1. Lighting design shall use an appropriate combination of natural, area, and task lighting with security type lights where necessary to meet appropriate Illuminating Engineer Society (or similar) recommendations. Efforts should be made to minimize electricity consumption from lighting by striving to reduce foot-candle levels. Lighting should fit task-area requirements only.  General-area lighting is to be selected at a lower intensity to accommodate access and non- critical sight needs.
      2. All lighting will be provided with disconnecting means in acceptance with the current NEC.
      3. OSU FS Electric Shop requires replacement pricing for both ballasts and lamps, to be supplied at the design phase of the project and with the electrical submittals. Design lighting projects to lamps currently in OSU Warehouse inventory. For a list of lamps in inventory, contact OSU FS Electric Shop.  The use of self-luminous exit signs containing radioactive material is prohibited unless specifically approved by Environmental Health & Safety (EH&S).
         
  24. LIGHTING SYSTEMS
    1. Dimming control systems shall be reviewed and approved by OSU FS Electric Shop.
    2. Reduced harmonic electronic ballasts, parallel wired for operation of one (1) or two (2) type T-8 lamps, shall be used wherever fluorescent lights are installed, except where special dimming ballasts are necessary.
    3. Lamps are to have low mercury content equal to or better than Philips Lighting "ALTO".
    4. Warranty
      1. Lamp system warranty: Four (4) foot T8 lamps and ballasts shall be warranted up to three (3) years (3 years for 24,000 hour lamps), from the date of substantial completion of the project. Lamps shall have an 85 CRI index, maintain a 24,000 hour warranty and have a 2,850 lumens specification.
      2. Lamp warranty: See fluorescent mortality curve for normal lamp mortality. Defective lamps or lamps failing at a higher than normal rate shall be replaced after a factory inspection determining the cause of failure or defect.
    5. Worldwide Color standards: Color coordinates shall follow the proposed IEC/ANSI color standards regardless of the country of manufacture. Campus standard is 41K.
    6. Cathode construction: The lamp shall contain cathodes designed for specific operation on United States ballast operating systems (instant rapid, programmed start) regardless of country of manufacture.
    7. ANSI standards: Lamps shall comply with applicable ANSI standards.
    8. See the end of this section for information on parking lighting and historic fixtures.
    9. Areas under construction shall have temporary lighting for nighttime.
    10. All interior light fixtures shall be accessible by a step ladder, 8 feet or less, placed in accordance with OSHA standards or one of the following:
      1. A permanently installed means of access.
      2. A building specific means (supplied by the project) of access (platform lift, custom built scaffolding, etc.) stored in a readily accessible location on site and in place at the completion of the project.
    11. All exterior lights shall be accessible by means currently owned by OSU without damage to buildings or plantings. Exterior lights must be installed an operated to prevent “up lighting” into the night sky, per the City of Corvallis Land Development Code.
    12. Fixtures incorporating lamps, other than those listed in OSU FS Stores inventory, shall not be used unless a written request to waive this requirement has been approved by the OSU Project Manager and OSU FS Electric Shop.
      1. For unique lamps and ballasts, ten (10) of each type or 10 percent of each lamp and ballast, driver & light engine whichever is greater, shall be added to the OSU FS Stores inventory by the project. Inventory to be added by the time of project commissioning.
      2. Fixtures that require use of proprietary lamps and ballasts and do not allow use of lamps or ballasts from other manufacturers are not allowed.
    13. All recessed can luminaires shall be 120 volt and have self-ballasted lamps. Ten (10) of each type of lamp or ten percent of each lamp, whichever is greater,  including any and all LED lighting, shall be added to the OSU FS Stores inventory by the project.  All re-order information shall be provided to OSU FS Stores.
    14. T-8 fluorescent lighting systems shall utilize high performance ballasts and lamps, meeting Energy Trust of Oregon specifications for High-Performance T-8 Lighting Systems.
    15. A list of all lamp types and ballast/driver types, shall be provided by Project Engineer at completion of project.
  25. ELECTRONIC BALLAST
    1. Performance Requirements
      1. Ballast Factor:  Ballast factors at nominal voltage shall be as follows:
        1. Standard ballasts - 0.90 ballast factor.
        2. PLUS ballasts - 1.2 for 2 lamp ballast.
        3. Flicker: Ballast shall operate lamps at a frequency above 20 KHz and lamps shall have no detectable flicker.
        4. Power Factor: Ballast shall have input power factor above 97 percent when used with primary lamp type.
        5. Harmonic Distortion: Ballast shall have Total Harmonic Distortion (THD) of 20 percent or less when used with primary lamp type.
        6. Current Crest Factor: Lamp current crest factor shall be 1.7 or less.
        7. Ballast Efficacy Factor (BEF): The relative light output per watt consumed shall be equal to or greater than a CBM certified electromagnetic ballast for the same application.
        8. Lamp Life: The ballast shall provide lamp starting conditions and parameters consistent with lamp manufacturer’s recommendations and shall provide full rated lamp life under normal conditions.
        9. Circuitry: The ballast circuit shall operate lamps in parallel, such that if one (1) lamp fails, others will remain lit.
        10. Starting Method: Ballast shall match lamp usage for maximum efficiency.
        11. Starting Temperature: The electronic ballast shall provide for a minimum lamp starting temperature of 0°F depending on the ballast model and installation conditions.
        12. Ballast Output: The ballast output shall be protected against lamp rectification or shorted output leads.
        13. Case Temperature: The ballast shall have a maximum case temperature rating of 70°C.
        14. Internal Protection: The ballast shall have internal protection to prevent catastrophic failure.
        15. Ballasts shall be universal 120V/277V input.
      2. If drivers cannot be easily accessed, they should be located remotely and each location identified per fixture.
  26. PRODUCT SPECIFICATION
    1. Regulatory Requirements
      1. UL, CSA and CBM listing: The electronic ballast shall be Underwriters Laboratories (UL) listed, Class P, Type 1. CSA and CBM certified (where applicable).
      2. EMI / RFI:  Ballast shall meet FCC standard for EMI/RFI (FCC 47CFR Part 18 Non-consumer), ensuring suitability for both commercial and industrial installations.
      3. Efficiency Standards: Ballast shall comply with all applicable state and federal efficiency standards.
      4. Transient Protection and Harmonic Distortion: Ballast shall comply with applicable ANSI and IEEE standards for harmonic distortion and line voltage transient protection.
      5. Sound Rating: Ballast shall have audible noise rating of Class A.
    2. Other
      1. Warranty:
        1. The manufacturer shall provide a written warranty against defects in material or workmanship, including replacement, for five (5) years from date of substantial completion and include a nominal replacement labor allowance.
        2. If the lamp and ballast are covered by a combination lamp/ballast warranty, covered ballasts shall carry a five (5) year warranty, from the date of installation, plus an additional year if the lamps are replaced with the same type, and kind, at time of relamp, and include a nominal replacement labor allowance. Covered lamps shall carry a 2 ½ year warranty (3 years for 24,000 hour lamps), from date of substantial completion installation. Lamps shall have an 85 CRI index maintain a 24,000 hour warranty and have 3000 lumens specification.
        3. LED luminaires shall have a ten (10) year warranty on driver and light modules. Ten (10) of each type of driver and light module or ten percent of each driver and light module, whichever is greater, shall be added to the OSU FS Stores inventory by the project.  All re-order information shall be provided to OSU FS Stores.
           
  27. LIGHT LEVELS GENERAL
    1. All new lighting installations at the University shall comply with the latest version of ANSI/ASHRAE/IES Standards. Lighting levels are to be designed at the highest level, per chosen reference material, for the designed space or area.  Outdoor lighting levels are to be at the highest accepted lighting standard for the considered space. The referenced light levels are understood to be a maintained light level. Light levels are measured at a 30-inch height from the floor or at the actual work surface and represent the average level for the area or workstation.
    2. Special lighting applications, such as recreational field lighting, shall comply with the latest Illuminating Engineering Society (IES) standard.
    3. Student Study Areas and Classrooms: Provide 40 to 60 foot-candle light level at workstation. Workstations equipped with video display terminals (VDT’s) or computers should be illuminated with 30 to 50 foot-candles as recommended by the latest edition of the National Institute for Occupational Safety and Health (NIOSH) standards.
      1. Switching in classrooms shall provide for switching the fixtures in the front and seating area separately to facilitate the use of overhead projectors, etc.
      2. Light fixtures at workstations with video display terminals or computers should be located perpendicular to device in order to minimize glare and viewing difficulty.
    4. Staff and Faculty Office Workstations: Provide 40 to 50 foot-candle light level at workstation.
    5. Workstation Where Critical or Fine Work is performed, as in Laboratories or Drafting Rooms: Provide 50 to 70 foot-candle light level.
    6. Corridors, Stairwells, Lobbies, Waiting Rooms, Storage and Service Areas: Provide 10 to 20 foot-candle light level.
    7. Restrooms, Lockers and Showers: Provide 20 to 30 foot-candle light level.
    8. Lecture Hall and Auditorium Lighting: Provide 40 to 60 foot-candle light level at all seating locations. For a lecture hall stage area, provide 40 to 60 foot-candle light level. For an auditorium stage area, the lighting shall comply with or exceed the latest IES standard. Provide separate switching for stage and seating area.
    9. Parking Ramp Interior: Provide 1 to 3 foot-candle light level in the traffic lanes, 1 to 3 foot-candles in the parking areas and 1 to 3 foot-candle light level at the entrance/exit. All values are average maintained horizontal foot-candles. Uniformity shall be 10:1 for the entire area. HPS shall not be used in a parking structure.
    10. Outside Security, Building Perimeter, Parking Lot and Outside Walkways: Provide 1 to 3 foot-candle light level.
    11. Outdoor lighting levels shall be designed to comply with current IES standards for the area or as follows:
      1. Primary walkways and problem areas: 1 foot-candles average and .5 foot-candles minimum.
      2. Secondary walkways and other areas: .5 foot-candle and .10 foot-candle minimum.
      3. Primary streets: 2 foot-candles average and .25 foot-candle minimum.
      4. Parking lots: 1 foot-candle average and .25 foot-candle minimum.
    12. Temporary Site Lighting During Construction: Sufficient lighting shall be provided such that Campus Police may observe the entire area. Provide a light level of 1 to 3 foot-candles. The Contractor is responsible for providing temporary lighting outside of the project area if the project interrupts the normal lighting to the area.
    13. Mechanical Rooms: Provide 50 to 60 foot-candle light level. Mechanical room fixtures shall be “turret style” industrial fluorescent fixtures with wire guards. Sockets shall be protected by housing and shall not be exposed. Provide emergency egress lighting.
       
  28. INTERIOR LIGHTING
    1. Requirements
      1. Recommended Fixtures: Fluorescent fixtures using 4 foot T8 lamps are generally preferred. Compact florescent lamps should be used in recessed luminaries.  Ballasts shall be readily accessible. Incandescent lighting may be used only with the written permission of the OSU FS Electric Shop. Any department requesting approval of incandescent lighting must be willing to accept financial responsibility for the maintenance of the incandescent lighting. Where incandescent lamps are used as part of an equipment system or alarm, provide six (6) spare lamps of each wattage.
        1. High pressure sodium (HPS) lamps shall not be used indoors. For warehouse areas and high ceilings over 20 feet, T-5 or T-8 high output reflective fluorescent lighting fixtures may be used.
        2. Metal halide lamps shall only be used in areas where there is assurance that they will be turned off at least once a week; this reduces the possibility of an explosion at end of life. Their use should be limited to areas in which network television coverage is expected, accurate color rendering is required, or gymnasiums.
        3. Fluorescent Fixtures: All fixtures shall be independently supported from the structure above. Fixtures shall be all metal with hinged shielding where required for architectural effect. 277-volt fixtures shall be used, except recessed luminaries, where this voltage is available. Fixtures shall meet or exceed the requirements of the latest version of ANSI/ASHRAE/IESNA Standards.
        4. Quartz lamp fixtures shall not be used.
        5. LED luminaires  selected shall have a 10 year warranty and have standardized replacement light module and driver.
        6. Ballasts: High frequency electronic type, specifically designed to use T8/T5 lamps, instant start or programmed start when applicable, to operate multiple lamps in a parallel configuration. Ballasts shall meet minimum performance standards as established by the Certified Ballast Manufacturers Association. Additional requirements shall include a maximum total harmonic distortion of 20 percent, sound rating of “A”, shall comply with applicable standards asset by ETL, FCC, NEC, IEEE, be listed by UL and carry a five (5) year replacement warranty. Separate ballasts should be provided for each lighting fixture. For applications where one (1) ballast is used to light multiple fixtures, the location of other fixture shall be identified. Ballast selection shall be based on its designed usage; programmed start vs. rapid start.
        7. Ballasts for compact fluorescent lamps shall be electronic type and shall have the following characteristics:
          1. Ballasts to be high power factor type.
          2. Ballasts factor shall be .95 or greater.
          3. Ballasts for multiple lamps shall be parallel wiring type.
          4. Minimum starting temperature shall be 0 degrees F.
          5. Ballast shall contain end of lamp life fault mode shutdown protection.
      2. Lenses shall not be specified as an alternative for louvers. If lenses are required for the job, the job shall be engineered for these units.
      3. Fluorescent Lamps: 4-foot, 32-watt and 2-foot, 17 watt, T8, instant start/programmed start lamps with color temperature of 4100K and minimum CRI of 85.
      4. Specify the use of exit signs utilizing Light Emitting Diodes (LED) light source with life expectancy greater than ten (10) years.
      5. Incandescent Lamps: When approved by the OSU FS Electric Shop, specify the 130-volt, inside frosted lamp for rough duty application.
      6. Lighting Safety: Stairwells in buildings shall have sufficient fixtures so that the loss of one (1) lamp or ballast will not leave the area dark. The mounting of the fixtures shall not exceed eight (8) feet and must be accessible from a flat landing area. Fixtures shall have lenses; no bare lamps shall be permitted. Stairwell and all egress lighting circuits shall be fed by e-panels from a generator (if available.)
      7. Provide the following spare parts with the listed quantities for all luminaires for each item and size required: Spare products shall be the percentage or the minimum, whichever is greater.  Spares are to be added to OSU FS Stores warehouse inventory. All re-order information, for lamps, ballasts, lighting modules, and drivers shall be provided to OSU FS Stores. 
        1. Ballasts/drivers: 5 percent or a minimum of three (3) of each type.
        2. Lamp Sockets: 10 percent or a minimum of ten (10) of each type.
        3. Fixture Lenses and Supporting Hardware: 10 percent or a minimum of ten (10) of each type.
        4. Specialty lamps or light modules (those not carried by the OSU FS “Stores”): 10 percent or a minimum ten (10) of each type.
      8. All submittal reviews for luminaires and ballasts, light engines/modules and drivers shall include the following:
        1. Catalog cut sheets and replacement costs.
        2. Lists of spare parts with quantities to be furnished.
           
  29. EXTERIOR LIGHTING
    1. Requirements
      1. Lighting for the entire site, including driveways, walks, parking areas, and the building perimeter shall be included in the contract documents.
      2. Fixtures: High intensity discharge (high pressure sodium lamps) fixtures mounted on the building or on suitable standards are required for all exterior site lighting. These fixtures shall be automatically controlled by photocell(s) and/or the automated building management system and also have an accessible bypass.
        1. Light control shall be provided on all exterior lighting fixtures. The fixture shall be insect proof. Vandal proof fixtures shall be used if the fixtures are mounted 10 feet or less off the ground.
        2. Parking Lot Light Fixture.
          1. Architectural Lighting ALR 182 or KIM CCS, 21” diameter, multi- tap ballast, 150w HPS, 20’ or LED equivalent head round tapered steel pole, light gray color.
          2. Fixture Park Circle Series. Bieber Lighting Corporation. PC-2-J1-MT-L-S-H-GY-Yoke Mount.
          3. Fixture: PC> Size: diameter – 23”.
          4. Light source: HPS = J1, 150W. Voltage: multi-tap transformer.
          5. Optics: Type 5.
          6. Mounting arrangement: 2” Tenon fitter.Color: gray.
          7. Options: Slip-fit fixture arm.
        3. Historic Light Fixture
          1. See the City of Corvallis Land Development Code for down lighting requirements
          2. Visco Series A
          3. Cast iron base, 12-foot tapered, fluted steel pole, (14’-2” plus or minus 1” to lamp centerline) (See Diagram 26 00 00A at end of this Section)
          4. Multiap ballast
          5. 100w HPS Mogul base lamp with two piece acrylic globe.
          6. Prismatic Glass Refractor 4685 Type III short cut-off reflector, band, finial, and down light reflector/louver. (See Diagram 26 00 00B at end of this Section)
          7. Available through Valley Iron and Steel Co. (VISCO) 29579 Awbrey Lane, Eugene, Oregon 97402-9639, Phone (541) 688-7741.
          8. Shall be painted “OSU Black”: Sherwin Williams "Tricorn Black" SW 6258; 50 percent gloss.  All cast iron and steel light pole parts are to be factory finished painted to “OSU Black”.  All surfaces are to be sandblasted and free of any mill scale, rust, dirt, or grease prior to application of primer.  Primer to be lacquer resistant, phenolic modified alkyd similar to “Barrier III Rust Inhibitive Primer” as manufactured by Rodda Paint (Eugene, OR).  The primer shall be applied to give a “dry film thickness” of 1 ½ - 2 mils.  The finish top-coat shall be a polyurethane, two-component coating, that can be applied a minimum of one (1) hour after primer.  The finish top-coat shall be similar to “Polycoat II” as manufactured by Rodda Paint (Eugene, OR).  Two finish top-coats shall be applied with each giving a “dry film thickness” of 1 ½ - 2 mils, and has a minimum dry time of twelve (12) hours.
          9. Lay out must be in straight lines adjacent to sidewalks and walkways.
          10. Must have 24-inch radius concrete collar (see diagrams).
          11. Provide an extra conduit for future capacity at every fixture. Extend conduit beyond footing and adjacent concrete so it can be easily accessed in future.  Stub location and depth shall be provided on as-builts and to the OSU FS Electric Shop. 
          12. Banners must be mounted on dual arms to a Historic Light Fixture.  Maintain a 7’-0” minimum vertical clearance for pedestrians from the sidewalk to the lower arm.  See diagrams.  Note that poles are tapered when ordering the arms.  (See Diagram 26 00 00C at end of this Section)
        4. Fixture Location
          1. Fixtures shall be located in such a manner that dark voids and excessive glare in windows are eliminated. Accessibility for servicing must be considered in locating fixtures. All fixtures shall be accessible by means currently owned by OSU Facilities without damage to landscape or plantings. Consideration must also be given to light spillage onto adjacent facilities (existing or planned) such as greenhouses, which are light sensitive. Use directional or shielded lighting as necessary to prevent light trespass and comply with City of Corvallis Land Development Code requirements.
          2. Fixture locations shall be designed in concert with the Landscape Architect so as to prevent future blocking of fixture by vegetation at maturity.
             
  30. LIGHTING CONTROLS
    1. Requirements
      1. Automated lighting controls that minimize electrical lighting use are required in all areas. Automated lighting controls shall not be used where safety may be jeopardized, e.g., stairwells, labs, kitchens, mechanical spaces, restrooms.
        1. Exceptions may be submitted to OSU FS Electric Shop for review.
        2. All systems will have a manual bypass feature installed.
      2. Multiple Switching: The use of multiple switching shall be evaluated for each space and condition. Where possible, switching shall be circuited to effectively use natural lighting from windows; to permit light reduction during partial occupancy; and to permit reduced lighting for custodial activity.
      3. Occupancy sensors shall not be used as the sole means of switching. Manual switches will be provided in all areas with occupancy sensors. Occupancy sensors shall not be used in mechanical rooms or other areas where safety would be jeopardized. At installation, set all sensors to maximum sensitivity and maximum time delay. Use manual on / auto off where applicable.
      4. Remote switching by means of a central control should be evaluated for new construction and for large renovation projects.
      5. Dimming Control: Access to dimming controls shall be readily accessible at all times without escort of other departmental personnel.
        1. Where dimming is required it shall be used to control incandescent lighting and may be used for Hi-Lume and approved solid state dimming ballast fluorescent fixtures for low lighting levels. The control panel/panels required for the dimming system shall have the UL label. Each dimming module shall be UL tested and tested specifically for the type of load it is controlling. Each dimmer module shall possess a means of easily disconnecting power on an individual module-by-module basis.
        2. Dimming panels shall be cooled without the use of cooling fans without exception and shall be capable of operating as such in an environment of 0 degrees to 40 degrees centigrade. Satisfactory independent laboratory test results shall be required, that at +40 degree centigrade and at full load, the maximum temperatures of both filter chokes and SCRs/Triacs are not exceeded.
        3. There shall be one air gap positive off relay for dimmer, either integral to the dimmer or mounted elsewhere in the same panel. Other advanced technological approaches that give the same or better operational result is highly recommended by this standard.
        4. All controls shall have the capabilities of reverting back to their previous status after any duration of power outage (power failure memory), without the use of any type of rechargeable or trickle-charge type of battery.
        5. All systems must be submitted to the OSU FS Electric Shop for approval.
          1. Special Requirements for Fluorescent Dimming Systems: Before specifying fluorescent dimming systems, the Designer/Engineer shall consider the following:
            1. 100 hour “burn-in” time is required for the fluorescent lamps when using the dimming ballasts.
            2. The cost of replacing the ballast and lamps when needed is 200-300 percent more than replacing standard systems.
          2. This standard requires the Designer/Engineer to review the application of dimming devices and submit recommendations to OSU FS Electric Shop before incorporating into specifications.
      6. Parking ramp interior lighting shall be circuited to permit lighting of dark interior areas during the day without lighting those areas which receive sufficient natural light. Automatic control of ramp lighting by photocell is required.
        1. All exterior area and security lighting shall be dusk on and dawn off, powered from one (1) location in the building and controlled from the photo control, with provisions for manual override. Photo cell shall be readily accessible. Time clock control may be used on exterior or security lighting with written approval of the OSU FS Electric Shop.
        2. All lighting controls shall be located so as to have 24/7 access without escort of departmental personnel.
           
  31. WINDOW OPERATORS
    1. Requirements
      1. Use of window operators must have written acceptance by the OSU FS Electric Shop.
      2. Window Operators shall be the model stocked by OSU FS Stores.
      3. At least 10 or 10% spare inventory provided by project.

 


 

Categories of PPE as described in NFPA 70E


 

 


 

Color Coding for 480/277V and 208Y/120V


 


 Diagram 26 00 00A


 Diagram 26 00 00 B


 


 Diagram 26 00 00 C

 

 

 

 

Last Updated: 
02/10/2020