DESIGN AND CONSTRUCTION STANDARDS
FACILITIES MANAGEMENT SERVICES
DIVISION 16
ELECTRICAL SYSTEMS
DIVISION 16
ELECTRICAL SYSTEMS
Division 16 of the Carnegie Mellon University Design and Construction Standards Manual addresses the
following requirements for electrical systems on University projects.
16000
16050
16200
16300
16400
16500
16600
16700
16950
GENERAL PROVISIONS
BASIC ELECTRICAL MATERIALS AND METHODS
POWER GENERATION
HIGH VOLTAGE DISTRIBUTION
SERVICE AND DISTRIBUTION
LIGHTING
SPECIAL SYSTEMS
COMMUNICATIONS
ELECTRICAL SYSTEMS TESTING
DESIGN AND CONSTRUCTION STANDARDS
FACILITIES MANAGEMENT SERVICES
DIVISION 16
ELECTRICAL SYSTEMS
16000 GENERAL PROVISIONS
The Design Consultant shall meet with the University Project Manager to develop and prepare a project
program in accordance with Facilities Management Services’ requirements for new buildings and/or
renovations.
The Design Consultant is required to visit the site to verify existing conditions and to survey the area of
work.
Electrical Design Criteria
The following are general electrical design criteria. The building under design may require some, not
necessarily all, of these criteria. The Design Consultant shall, with the University Project Manager, identify
the implementation of those systems that apply.
Research buildings and office buildings shall be provided with a primary selector load break switch when
medium voltage is supplied to the building.
The mechanical systems shall be designed to be energy conserving and in accordance with ASHRAE/IES
Standard 90.1-2004.
The University is an ally of the Green Lights program of the Environmental Protection Agency (EPA) and
is committed to the principle of installing the most efficient lighting systems.
Primary Power Distribution
Each feed into a building shall be status monitored to determine which feed is being used. Dry contact
output shall be connected to the energy management system.
Electrical Equipment Rooms
Access shall be provided for replacement of the largest piece of equipment without cutting the equipment or
removing walls. The rooms shall be adequately ventilated under automatic control and shall have a floor
drain. The mechanical and electrical rooms shall not be adjacent to areas where the vibration and/or noise
from the electrical equipment would be objectionable. Electrical rooms shall be separate and physically
isolated. There shall not be any mechanical piping or ductwork allowed in electrical equipment rooms.
Doors for electrical rooms shall open out and have a panic bar opener.
Temporary Light and Power
Complete installation of temporary lighting and power shall be in strict accordance with the latest edition of
the National Electric Code and OSHA requirements.
The Electrical Contractor shall provide fence lighting in accordance with the City of Pittsburgh’s
requirements.
For additional information see Division 1 General Requirements, Section 01510 Temporary Utilities.
Shut-Down of Utilities
Refer to Division 1 General Requirements, Section 01510 Temporary Utilities.
Record Drawings
Refer to Division 1 General Requirements, Section 01700 Contract Close-Out.
Rev 2005-A May 2005
P. 16-3
DIVISION 16
ELECTRICAL SYSTEMS
DESIGN AND CONSTRUCTION STANDARDS
FACILITIES MANAGEMENT SERVICES
Access Panels
Access panels shall be provided for all devices and controls that will not be readily accessible after
completion of the project, but to which the University will later require access.
Regulations and Permits
All electrical work, equipment, and materials furnished and installed shall conform to the latest
requirements of the following:
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National Electric Code (NEC)
National Fire Protection Association (NFPA)
Department of Labor and Industry, as applicable (OSHA)
United States Department of Health and Human Services
Federal Specifications
Basic National Building Code (BOCA)
American National Standards Institute (ANSI)
Illuminating Engineering Society (IES)
Institute of Electrical and Electronics Engineers (IEEE)
National Electrical Manufacturers’ Association (NEMA)
Underwriters Laboratories (UL)
Factory Mutual (FM)
Electrical work shall also conform to any other governmental or local authorities having jurisdiction.
Standards
All material and equipment shall be listed, labeled, or certified by a nationally-recognized independent
testing laboratory where such standards have been established. Equipment of a class that no nationallyrecognized testing laboratory accepts, certifies, lists, labels, or determines to be safe will be considered
acceptable, if not inspected or tested in accordance with a national industrial standard such as those of
ANSI, NEMA, or the Insulated Cable Engineers Association (ICEA).
Damage to Other Contract Work
The Electrical Contractor shall be responsible for the repair of damages to other contractors’ work and to
existing work areas. The Electrical Contractor shall repair said damages to the original condition to the
satisfaction of the University.
Calculations
The Design Consultant shall provide the University Project Manager with the voltage drop, load, and fault
current calculations.
16050 BASIC ELECTRICAL MATERIALS AND METHODS
Raceways
Unless otherwise specifically approved by the University Project Manager, all new wiring in existing and
new buildings shall be concealed.
P. 16-4
Rev 2005-A May 2005
DESIGN AND CONSTRUCTION STANDARDS
FACILITIES MANAGEMENT SERVICES
DIVISION 16
ELECTRICAL SYSTEMS
All conductors shall be run in electrical metallic tubing (EMT) except where otherwise required.
Compression fittings shall be used for EMT. The minimum conduit size shall be 0.75 in.
The use of armor-clad (AC) cable is prohibited.
Metal-clad (MC) cable may be used in inaccessible ceiling and wall spaces, but shall not be exposed. The
Design Consultant shall verify all other uses of MC cable with the University Project Manager.
The use of ENT (non-metallic) conduit shall not be permitted without the written approval of the University
Project Manager.
Conductors rated 2 kV and above shall be run in rigid galvanized steel (RGS) conduit.
Cable trays are acceptable for communication cable. They may also be desirable in certain research
laboratories or facilities to contain equipment power and control cable.
Conductors
All wire shall be type THHN/THWN insulated solid copper. Minimum wire size shall be No. 12 AWG.
Medium voltage power cable shall be 5 kV, single conductor, shielded with ethylene-propylene rubber.
Splices shall be avoided wherever possible. However, if required, splice kits or hand splices shall be used.
Reusable splices are not permitted.
Switches and Receptacles
Convenience receptacles shall be Hubbell, P&S, Bryant, or Leviton No. 5362; 20 amps; grounding-type
NEMA rated. Switches shall be Hubbell, P&S, Bryant, or Leviton Nos. 1221, 1223, and 1224.
Coverplates for switches, outlets, and receptacles shall be stainless steel finish, unless otherwise approved
by the University. While wall surfaces are to receive wall coverings, the coverplates shall be high-impact
nylon with color as selected by the Design Consultant.
Duplex receptacles shall be mounted with ground terminal up at 18 in. above finished floor (AFF) and
switches at 48 in. AFF.
All existing device locations that will be reused shall receive new devices and coverplates.
A minimum of 20-ampere circuits shall be provided for lighting and power. All lighting and power circuits
shall be kept separate from each other, with dedicated separate lighting and power panels, unless
impractical and approved by the University Project Manager. Some older buildings may have combined
lighting and power panels.
Common trip for all multiple pole breakers shall be provided.
Ground fault interrupters shall be provided for all exterior circuits and all circuits in wet areas such as toilet
rooms, kitchens, and wet labs. These interrupters shall comply with all codes. Ground fault circuit
interrupter (GFCI) components that are in current production shall be used.
For audio-visual applications, refer to Division 11 Equipment, Section 11130.
Identification
All electrical equipment and circuits shall be marked and labeled for identification purposes. Laminated
nameplates shall be used on the exterior surfaces of all electrical apparatus, including switchboards, control
center safety switches, circuit breakers, pull boxes, junction boxes, and panelboards. All panelboards,
disconnect switches, and transformers shall be labeled indicating the source of power, voltage, and load.
Rev 2005-A May 2005
P. 16-5
DIVISION 16
ELECTRICAL SYSTEMS
DESIGN AND CONSTRUCTION STANDARDS
FACILITIES MANAGEMENT SERVICES
16200 POWER GENERATION
Generator
Electrical equipment and associated piping and duct work shall be mounted on vibration isolators to
minimize transmission of vibration and noise to building structures or spaces.
All rotating equipment shall be balanced both statically and dynamically. The equipment supporting
structure shall have no natural frequencies within plus or minus 20% of the operating speeds. The
equipment while operating shall not exceed a self-excited radial vibration velocity of 0.10 in./sec or an axial
vibration velocity of 0.05 in./sec when measured with a vibration meter.
Emergency generators shall be diesel fueled as required by the City of Pittsburgh.
Automatic Transfer Equipment
The emergency system may be either 208Y/120 or 480Y/277 volt, 3-phase, 4-wire. It shall have an open
transition 3-pole and switched neutral transfer switch. (Generator neutral shall be grounded as required for
separately-derived sources with switched neutral transfer switches.)
If elevators or motor-generator (MG) sets are connected to the generator, an in-phase retransfer relay shall
be installed in the transfer switch so the generator does not trip the feeder breaker.
Emergency Power Loads
New construction projects shall have loads as required by the governing codes connected to the emergency
power system. Equipment in new structures such as fire alarm systems, general management panels, security
panels, environmental rooms, prime hood exhaust fans, critical computers, and emergency lighting in
electrical and mechanical rooms shall also be provided with emergency backup power supply.
Existing buildings shall only have loads connected to the emergency power system as required by the
governing codes and as approved by the University Project Manager. The Design Consultant shall obtain
load data on existing emergency generators from the University Project Manager.
16300 HIGH VOLTAGE DISTRIBUTION
Substation Switchgear
Medium voltage 5kV circuit breakers shall be of vacuum drawout type.
Load break fuse selector switches shall be utilized for all building service entrances. Switches shall be 5kV
equal to Westinghouse WLI with CLE-type fuses.
Transformers
Transformers shall be mounted on isolators to minimize transmission of vibration noise to building
structure.
The sound pressure levels around electrical equipment in equipment spaces shall not exceed 85 dBA on the
A scale at any point 3 ft from the equipment with all equipment in the room operating.
Indoor or outdoor transformers with primary voltage of 5 kV and sized 300 kVA and above shall be dry
type design with 80 °C (176 °F) temperature rise.
K-rated transformers shall be utilized in electronic data processing equipment distribution systems.
Approved Manufacturers
The preferred manufacturers for all switchgear are as follows:
P. 16-6
Rev 2005-A May 2005
DESIGN AND CONSTRUCTION STANDARDS
FACILITIES MANAGEMENT SERVICES
•
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DIVISION 16
ELECTRICAL SYSTEMS
Westinghouse Electric/Cutler Hammer
General Electric
Square D Powerlogic
16400 SERVICE AND DISTRIBUTION
Service, Disconnect, Metering
Generally, electrical distribution systems shall be 480Y/277V, 3-phase, 4-wire for lighting and mechanical
loads and a 208Y/120V, 3-phase stepdown transformer for small power loads. The main distribution panel
(MDP) shall have an amp meter, voltmeter, kWh meter, amp, and volt switches. The main feed shall have
remote monitoring capability for kWh use and kW demand. Pulse outputs (kWh) and a 4 to 20 mA signal
(kW) shall be sent to the Campus-wide Energy Management System. Alternatively, meters may be
connected to the Campus-wide Energy Management System via BACNet/IP, BACNet/MSTP or ModBUS
interface.
Laboratory, computer, and data processing rooms and shop panelboards shall have emergency shut-off
devices located away from telephones and light switches. They shall be clearly label “Power Disconnect.”
Green wire ground shall be provided in each building riser, in each feeder circuit, to each 3-phase motor
circuit, to each fixed device branch circuit, and to each receptacle circuit.
The main distribution panels shall contain one main breaker and several branch feeder breakers. The
designer shall submit load calculations for main distribution panels with diversity factors. All calculations
shall be in accordance with the NEC.
Fused switches shall not be used. Analyzers are not required for motor overcurrent protection; circuit
breaker type protection devices shall be used instead.
The preferred manufacturers for meters are:
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Square D Powerlogic
Cutler Hammer IQ Analyzer
Motors and Motor Starters
All motors shall be high-efficiency. Motor starters shall be combination thermal magnetic circuit breaker
type for motors up to 30 hp. Motors over 30 hp shall use thermal magnetic reduced-voltage
autotransformer-type starters. Variable frequency drives shall be used when approved by the University
Project Manager.
Fused switches shall not be used for motor overcurrent protection; circuit breaker type protection devices
shall be used instead.
The controller shall contain the minimum following features:
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Manual bypass consisting of a full voltage starter and a normally-open contact, electrically and
mechanically interlocked with the starter
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Isolation contact to minimize possible shock hazard at the motor terminals when the controller is off
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Instantaneous overcurrent trip to protect against output phase to phase (short circuit) and output phase
to ground (motor ground fault)
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Overvoltage trip to protect against high line voltage
Status indicating lights to aid in troubleshooting
Capability of supplying 150% of rated full load current for one minute at maximum ambient
temperature
Rev 2005-A May 2005
P. 16-7
DIVISION 16
ELECTRICAL SYSTEMS
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DESIGN AND CONSTRUCTION STANDARDS
FACILITIES MANAGEMENT SERVICES
Undervoltage trip to protect components against overtemperature
Overtemperature trip to protect components against overtemperature
Adjustable acceleration rate, 0-60 sec
Analog speed meter
On-off-auto control with manual speed adjustment in the manual position
Isolated signal follower, current 4-20 mA, voltage 0-10V dc or pneumatic 0-15 psi, compatible with the
building’s automatic temperature control system
If isolation transformers and/or reactors are required to make the drive operate properly because of
transients, the drive manufacturer must include them.
The entire assembly shall be by one manufacturer. The preferred manufacturers for motor starters are as
follows:
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Square D Powerlogic
Allen Bradley
Westinghouse/Cutler Hammer
General Electric
All internal control wiring shall terminate at screwed terminal strips and be properly identified for
connecting field control wiring.
Motors less than 0.75 hp shall be single-phase, 115 V for operation on 120-V circuits. Motors 0.75 hp and
larger shall be 3-phase. Motors operating on 3-phase, 208 V shall be rated at 200 V. Motors operating on 3phase, 480 V shall be rated at 460 V.
Power factor correction shall be provided on all motors larger than 25 hp.
On centrifugal chillers, a wye-delta, closed-transition motor (hermetic) and starter shall be used.
For standards related to variable speed drives, refer to Division 15 Mechanical Systems, Section 15170.
Motor Control Centers
Structures shall be totally enclosed, dead front, free standing. Guide rails for control units, accessible
wireways, and terminal blocks for control wiring shall be provided.
Starters shall be of the combination type with circuit breakers. Each starter shall have two normally-open
and two normally-closed auxiliary contacts wired to the terminal blocks, hand-off-auto switch, red run light,
and green off light. Starters shall be wired so that at the loss of electrical power, they revert back to
automatic operation when power is restored.
The motor control center shall be sized for a minimum 25% spare capacity. It shall be complete with bus
bar, rails, wireways, and other appurtenances so that, other than new starters, no additional hardware is
required for future expansion.
Starter control circuits must include wiring terminals on terminal strips for interconnection with the
University’s Building Automation System. All controls shall be located on the outside of switches, control
cabinets, controllers, and motor control centers.
For fire pump controllers, the “Power Available Visible Indicator” bulbs frequently burn out and have been
cited by fire and insurance inspectors. Therefore, long-life lamps such as neon shall be provided for these
indicators.
P. 16-8
Rev 2005-A May 2005
DESIGN AND CONSTRUCTION STANDARDS
FACILITIES MANAGEMENT SERVICES
DIVISION 16
ELECTRICAL SYSTEMS
Panelboards
All branch panelboards shall be 42 circuit panels with bolt-on branch breakers. A separate panel shall be
located in each laboratory. All panels shall have panel schedules on the drawings as well as in each panel.
Branch circuit panels shall have all of their circuits on the same floor.
Panelboards shall have an isolated neutral bus and a ground bus bonded to the cabinet.
Group-installed panelboards shall have separate trim.
Where flush panelboards are used, a 1-in. conduit shall be installed for every three spare poles to a point
above the suspended ceiling.
Green ground wire shall be installed with all circuits.
Panels serving loads in only one room may be located in that room. Panels serving more than one room
shall be located in the corridor or other public space. Panelboards shall NOT be installed in janitor closets.
Breakers shall be of bolt-on type, 10,000 ac minimum for 120/208 V, 14,000 ac minimum for 480/277 V.
Available fault current shall be verified prior to specifying.
Contractors shall be required to keep directories up to date, to indicate all deletions and additions, and to
note the date of all changes on the directory.
Panelboards shall contain surge suppression.
Circuit breakers for lighting branch circuits shall be rated “SWD” (switching duty related).
The main service entrance circuit breaker shall have true root mean squared (RMS) ground fault sensing.
Low voltage distribution overcurrent devices shall be molded case circuit breakers: feeder circuit/ branch
circuits.
The branch circuit wiring shall include the home run number, the conduit size, and the number of wires in
the conduit, including a ground wire. For renovation projects, all wire that is original building wiring and is
obsolete such as RH and RHW shall be replaced with type THHN/THWN.
All branch circuits shall have separate neutrals.
The preferred manufacturers for panelboards, bus duct, transformers, and disconnect switches are as
follows:
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General Electric
Square D Powerlogic
Westinghouse/Cutler Hammer
Transformers
The sound pressure levels from motors, elevators, and transformers and such in electrical equipment rooms
shall not exceed 85 dBA on the A scale at any point 3 ft from the equipment with all equipment in the room
operating.
Surge Suppression
Surge suppression receptacles shall be provided at individual outlets as specified by the University Project
Manager. The device shall be able to absorb a 6,000 V transient surge, suppress 140 J min, and suppress
13,000 A. The suppression device shall be UL listed to Standard 498 and 1449 CSA Spec. C22.2 and IEEE
62.41.
The preferred manufacturers for surge suppression receptacles are as follows:
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Hubbell
Rev 2005-A May 2005
P. 16-9
DIVISION 16
ELECTRICAL SYSTEMS
•
DESIGN AND CONSTRUCTION STANDARDS
FACILITIES MANAGEMENT SERVICES
Leviton
Grounding and Lightning Protection
All metallic cable sheaths, including flexible metallic conduit, shall be grounded and bonded properly.
Also, all roof projections, antennas, metal rails, parapet caps, and other items as needed shall be grounded
to provide lightning protection as required by codes.
16500 LIGHTING
Lamps
All incandescent lamps shall be energy saving, rated for 130 V, capsulate or traffic type.
Compact fluorescent ballasts shall be reduced harmonic with total harmonic distortion (THD) less than
33%.
The use of incandescent lamp sources shall be kept to a minimum. In general, incandescent lamps shall be
used only for dimming applications. All other applications shall be reviewed and approved by the
University Project Manager.
The Design Consultant shall consider maintenance items such as lamp life, lumen deprecation,
accumulation of dirt on the lens, and lower reflectance of ceiling and walls. Some lamps such as the 13 W
PL lamps and 250 W metal halide have had a high failure rate. Consideration shall be given to ease of lamp
replacement and overheating of ballasts caused by poor ballast location.
Ballasts
All fluorescent lighting shall use F32T8 lamps with electronic ballasts, reduced harmonic with THD less
than 20%.
Lighting Controls
All outdoor lighting shall be controlled by photocells. Photocells shall be placed to provide the optimum
turn-on time for security considerations.
Computer rooms shall use video display terminal (VDT) type fixtures. Two levels of switching shall be
provided for all other areas.
Shielding
Prismatic shielding in fluorescent troffers shall be KSH-type No. 12 at 0.125 in. nominal thickness used for
general purposes, such as corridors.
Parabolic louvers shall be 2 in. deep in areas such as classrooms, computer rooms, and offices.
Approved Manufacturers
Two manufacturers shall be listed for each lighting fixture. Proprietary luminaires are acceptable when
approved by the University Project Manager.
Quality of Illumination
Visual comfort probability (VCP) in offices shall be 80 or greater.
In offices and classrooms, the maximum to minimum foot-candle ratio shall never be greater than two to
one.
P. 16-10
Rev 2005-A May 2005
DESIGN AND CONSTRUCTION STANDARDS
FACILITIES MANAGEMENT SERVICES
DIVISION 16
ELECTRICAL SYSTEMS
For site lighting standard, refer to Division 2 Sitework, Section 02990. For audio-visual applications, refer
to Division 11 Equipment, Section 11130.
Recommended Average Foot-Candle Illumination
Area
Recommended Average Foot-Candle
Conference, seminar, offices
50-75
Service areas: corridors, stairways, locker rooms,
storerooms, lobbies, etc.
20
Library stacks
30-50 @ 30 in. above finished floor (AFF)
Study carrels
50
Card files
100
Laboratories
70-100
Classrooms and lectures
65-70
Offices/classrooms/VDT
50-60
Computer rooms with
(VDT terminals)
Drafting rooms
50
Mechanical, electrical rooms
20
Swimming pools
Handball courts
50
30
Covered parking facilities
5 (minimum @ 5 ft-0 in. AFF)
Walkways
1 (minimum)
Entrances
10
70-100
16600 SPECIAL SYSTEMS
Fire Alarm System
Fire alarm systems shall be designed in accordance with the following:
NFPA-72, the National Fire Alarm Code
NFPA-70. the National Electrical Code
International Building Code- 2003, Section 907
International Fire Code- 2003, Section 907
and any applicable local codes or amendments to any of the above.
The fire alarm system shall be addressable, with individual addresses for each alarm initiating device, such
as manual pull stations, smoke or heat detectors, waterflow or pressure switches, etc. The fire alarm system
shall be connected to normal/emergency power, and battery backup power shall be provided in the fire
alarm control panel in accordance with NFPA requirements.
Control panels shall be of modular design for ease of system expansion, and shall be protected with
adequate built-in surge suppression.
The fire alarm system shall be capable of disabling and re-enabling no less than nine (9) separate output
groups or functions, such as audible and/or visual alarm signals, release of fire shutters, release of door
Rev 2005-A May 2005
P. 16-11
DIVISION 16
ELECTRICAL SYSTEMS
DESIGN AND CONSTRUCTION STANDARDS
FACILITIES MANAGEMENT SERVICES
hold-opens, etc. This feature shall be made available through the use of push buttons located at the front of
the alarm control panel, and these buttons shall be clearly labeled describing the outputs that each will
enable/disable. The act of resetting the fire alarm panel shall not change the status of enabled/disabled
outputs, and the alarm control panel will clearly indicate any outputs while they are disabled. The required
configuration of these buttons will be provided by the University Facilities Management Services
Department.
Manual pull stations shall not have a glass rod or plate that must be broken to activate the system.
A graphic LED annunciation panel which will identify the fire alarm device, floor, and zoned location on
the floor in alarm shall be installed in a location that is acceptable to the local authorities and to the
University. This annunciator shall be mounted with the graphic display properly oriented to give the viewer
a clear indication of the building layout and the location of any alarm being reported.
Audio/visual fire alarm signals shall consist of an electronic horn and xenon strobe suitable for mounting in
a four (4) inch square back box. In finished areas, where surface mounting of devices is necessary, a
factory finished back box shall be used. Wall mounted audio/visual signaling units shall be mounted no
more than ninety (90) or no less than eighty (80) inches above the finished floor, or in areas having
extremely low ceilings, no less than six (6) inches below the ceiling.
Audible warnings provided by electronic horns shall be programmed at the fire alarm control panel to
produce an intermittent, broken, or march time signal.
Visual xenon strobe warning signals shall be provided in spaces required by ADA (Americans with
Disabilities Act) guidelines.
Where voice-alarm systems are required, the Design Consultant shall delineate all speaker placement and
wiring requirements to assure for correct annunciation of the alarm signal to all zones of the building. The
University’s Environmental Health & Safety Office will provide the message that will be delivered by the
system to building occupants.
Smoke detectors shall be installed in public areas as required by code or by the University. When installed
within common building areas, smoke detection shall be a combination of both ionization and photoelectric
types with alarm verification.
In addition to transmitting alarm signals to a central monitoring station, the fire alarm system shall transmit
alarm, trouble, and supervisory signals to the University Police alarm monitoring station.
Fire alarm systems and devices shall be manufactured by Siemens Cerberus (Pyrotronics) or by Notifier,
Incorporated and shall be connected to the University’s centralized monitoring system via dedicated copper
lines. The System Supplier shall provide building graphics that are suitable for display on the University’s
central monitoring system. The System Supplier shall also provide a complete set of fire alarm drawings to
the University Environmental Health & Safety Office for preparation of customized fire alarm device
messages. The drawings shall indicate room numbers and uses, all alarm device types, and their respective
identification numbers.
The Design Consultant shall prepare the design layout of the alarm panel, including appropriate zone lights
and device type lights for graphic annunciation. Based upon the type of building occupancy, he shall
recommend the styles of alarm initiating device and alarm notification device circuits to be used. The
Design Consultant shall provide complete sets of fire alarm drawings and specifications for review by the
University Facilities Management Services Department (FMS) and the University Environmental Health &
Safety Office (EH&S).
Certification testing of the completely installed fire alarm system shall be conducted by the Installing
Contractor, the System Supplier, the University FMS Lifesafety Supervisor and/or the University EH&S
P. 16-12
Rev 2005-A May 2005
DESIGN AND CONSTRUCTION STANDARDS
FACILITIES MANAGEMENT SERVICES
DIVISION 16
ELECTRICAL SYSTEMS
Fire Safety Specialist, with the Authority having Jurisdiction (Pittsburgh Fire Prevention Division- Bureau
of Fire). A certificate of satisfactory acceptance shall be acquired when testing has been completed.
Clock Systems
All new buildings shall have central clock systems.
In corridors, clock outlets shall be installed for synchronous clocks and tied into the main campus system in
the following buildings:
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Hamburg Hall
University Center
Wean Hall
Doherty Hall
Porter Hall, which feeds:
 Baker Hall
 Scaife Hall
 Hamerschlag Hall
 Margaret Morrison College
 GSIA
 Hunt Library
 College of Fine Arts
In large classrooms, auditoriums, gymnasium, or office areas, clock outlets shall be provided only as
directed.
16700 COMMUNICATIONS
General Information and Instructions
Designers should refer to the standard specifications for communications equipment provided by the Cable
Plant office. These specifications should be used without modification on all jobs involving data or
telecommunication equipment, cabling or spaces that house such equipment or cabling. Requests to modify
these specifications or drawings in any way should be referred to the Cable Plant Manager at Carnegie
Mellon. These documents are available on-line.
16950 ELECTRICAL SYSTEMS TESTING
Cleaning
Upon completion and prior to testing and commissioning, the Contractor shall thoroughly clean all
electrical devices to remove grease, metal cuttings, dirt, protective covers, and other foreign substances.
Testing
The Contractor shall test all work for shorts, grounds, and open circuits. The Contractor shall also perform
the following inspection and tests, and certify in writing that all tests and inspections have been made and
that all problems and defects have been properly corrected.
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Visually check all cables and connections.
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Make continuity checks for all power, control, and signal cables as well as conductors.
Rev 2005-A May 2005
P. 16-13
DIVISION 16
ELECTRICAL SYSTEMS
DESIGN AND CONSTRUCTION STANDARDS
FACILITIES MANAGEMENT SERVICES
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Make insulation-resistance tests for all 600 V power cables and conductors.
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Check all ac and dc control circuits for open and short circuits.
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Exercise all motor starters from motor control center push buttons.
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Check motors for proper rotation and measure motor current under load.
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Comply with Section 16200 for testing of emergency power generators.
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In general, comply with National Electrical Code NFPA 70 Article 700-4 (a) through (e) for test
procedure.
As a minimum, the National Electrical Testing Association (NETA) Acceptance Testing Specifications
(latest version) shall be followed to test all new electrical systems and equipment.
Also as a minimum, the NETA Maintenance Testing Specifications (latest version) shall be followed to test
all existing electrical systems and equipment.
P. 16-14
Rev 2005-A May 2005