Section 49 – Signals, Lighting and Electrical Systems
12/1/03
49.12
The enclosure shall be rain-tight and dust-tight. For new construction, anchor bolts shall be
inside the service enclosure. For modification construction, anchor bolts shall be inside or
outside the service enclosure as shown on the Plans.
A hinged dead front plate with cutouts for the handles of the breakers and the switch shall
be provided. A hinged outside door equipped with a heavy duty draw latch and two (2) heavy
duty hasps suitable for padlocking shall be provided for the service section. The dead front
panel on the service enclosure shall have a continuous stainless steel piano hinge.
The enclosure shall have no screws, nuts, or bolts on the exterior, except utility sealing
screws. All screws, nuts, bolts, and washers shall be stainless steel. All hinges and hinge pins
shall be stainless steel.
No surface of the enclosure shall be deflected inward or outward more than one-sixteenth
inch (1/16”), measured from the intended plane of the surface.
Service enclosures shall be factory wired and conform to NEMA Standards. All control
wiring shall be stranded copper, No. 14 AWG THHN/THWN rated for 600 volts. Wiring shall be
arranged so that any piece of equipment can be removed without disconnecting any wiring other
than the leads to the equipment being removed. All wiring shall be marked with permanent clip
sleeve wire markers. Felt, pencil, or stick back markers will not be acceptable. A copy of the
wiring diagram for the service enclosure and a typewritten circuit directory shall be enclosed in
plastic and mounted on the inside of the front door.
All circuit breakers, contactors, and wire shall be listed by UL or ETL. The enclosure shall
conform to the NEMA 3-R standard.
The terminal lugs or strips shall be copper or alloyed aluminum. All terminals shall be
compatible with either aluminum or copper conductors.
The service enclosure shall have provisions for the installation of up to a total of sixteen (16)
single-pole circuit breakers, including brass links and mounting hardware. Branch circuit panel
shall use loop wiring rated for 125 amperes with THHN/THWN insulation. All copper wiring
used for main bussing shall be No. 2 AWG THHN/THWN and rated for 125 amperes.
Nameplates of a reasonable size identifying the control unit therein shall be installed on the
dead front panel. Nameplates shall be black laminated plastic with white characters, and shall
be fastened by screws.
The entire service enclosure shall be constructed with the highest quality workmanship and
shall meet all applicable codes, and shall bear a factory applied label of approval by a
recognized testing laboratory.
Complete shop drawings on all substitutions shall be submitted to the Agency for approval
prior to fabrication. If the proposed substitute is rejected or if the submittal is not made within a
reasonable time, the specified equipment shall be furnished.
The Contractor shall protect and lock the service enclosure during construction. When the
Work has been accepted for maintenance, each enclosure shall be locked with a Contractor-
supplied master lock that will accept a Type 2214 key.
Street light "ON" and "OFF" control will be by photoelectric cell. All conduits and wires shall
be furnished and installed by the Contractor.



This Section: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
Sections: 1 2 3 4 5 6 7 8 9

Remodeling a home can be costly and frustrating, especially in decor of kitchen cabinets, veneer, bathrooms, vinyl siding, arts / crafts, patio enclosures, replacement windows doors, furniture, swimming pools spa, home security, or other architecture areas. Free Add Site 1, 2, 3, 4, 5, 6, 7
 

ADT Home Security - Replacement Windows - Home Improvement Ideas - Vinyl Siding Prices - Shopping - Bat Pest Control
Swimming Pools / Spa - Kitchen Cabinet Remodeling - Patio Enclosures - Site Map - Add URL Real Estate

Copyright © 2004 - 2008 Sunrooms and Spas by Site-Found

Art / Decor Business / Companies Computers / Accessories Education / Schools Entertainment / Books Health / Environment Home and Garden Home Improvement / Decorating Home Sales / Real Estate Life / Homes Literature / Classics Miscellaneous Recreation / Sports Science / Technology Shopping / Gifts Society / Family Websites / Logos Favorites Add URL 2 3 4 5 6