Specifications

Draper Prison Wasatch & Oquirrh Intercom & Paging System Remodel 4-21-2014
ELECTRICAL BOXES AND FITTINGS 260135 – 3
installation. Construct of corrosion-resistant steel.
PART 3 – EXECUTION
3.1 GENERAL:
A. Install electrical boxes and fittings in accordance with manufacturer's written instruction,
applicable requirements of the NEC, NEMA Standards, and NECA's "Standards of Installation",
and in compliance with recognized industry practices to ensure that products fulfill
requirements.
3.2 METHODS:
A. Where outlet boxes are subject to weather or moisture, install weatherproof outlet boxes.
B. Remove knockouts only for entering conduits. Provide knockout closures to cap unused
knockout holes where blanks are mistakenly removed.
C. Do not use condulets in place of elbows or junction boxes. Condulets in sizes 2" or larger shall
not be used, unless specifically approved by the electrical engineer.
D. Install boxes and conduit bodies in readily accessible locations. Install recessed boxes with
faces of boxes or rings flush with finished surfaces. Seal all openings between outlet box and
adjacent surfaces with plaster, grout, or similar suitable material.
E. For stud construction, install boxes with rigid supports using metal bar hangers, or 2" X 4", 1" X
6" wood bridging between studs with screws. Welding or nailing boxes directly to metal joist
and studs is not acceptable. Boxes set opposite in common wall shall have at least 10" of
conduit between them. Securely fasten outlet boxes to structural surfaces to which attached.
F. For concrete or masonry construction, solidly embed electrical boxes in concrete and masonry.
Provide box supports as required to keep outlet boxes flush with finished surfaces.
G. Coordinate location of all outlet boxes with millwork, back splashes, tackboards, etc.
H. Install junction boxes or condulets in conduit runs as required at 100 foot maximum intervals on
long runs. This shall apply to concrete junction boxes in grade and junction boxes within the
building.
I. Provide electrical connections for installed boxes.
3.3 IDENTIFICATION:
A. Mark circuit number on exterior side of junction boxes located in ceilings such that circuits
numbers are readily identifiable. For outlet boxes in wall, mark circuit numbers on interior sides
of outlet boxes.
END OF SECTION 260135
Bid DA14027DFCM
5/30/2014 2:08 PM p. 86