Specifications

Draper Prison Wasatch & Oquirrh Intercom & Paging System Remodel 4-21-2014
ELECTRICAL BOXES AND FITTINGS 260135 – 2
adapting tile or plaster covers where necessary to set flush with finished surfaces. Where three
raceway entries are made, provide outlet boxes with a minimum depth of 2-1/8". Gang boxes
shall be used where more than one switch or device is located at one point. Sectional Boxes
are not acceptable. In masonry walls where tile or plaster ring cannot be used, install a single-
gang 3-1/2" deep box minimum, unless otherwise noted. Where four or more raceway entries
are made, provide outlet boxes with a minimum depth of 4-11/16".
2.2 WEATHERPROOF OUTLET BOXES:
A. Provide corrosion-resistant, cast-metal weatherproof outlet boxes, of types, shapes, and sizes,
with threaded conduit ends, cast metal coverplates with spring-hinged waterproof caps, face
plate gaskets, and corrosion-resistant fasteners.
2.3 JUNCTION AND PULL BOXES:
A. Provide code-gauge sheet steel junction and pull boxes, with removable screw-on covers and
welded seams, of types, shapes, and sizes to suit each respective location and installation.
Size all junction and pull boxes in accordance with NEC 314.28. Provide stainless steel nuts,
bolts, screws, and washer.
2.4 CONDUIT BODIES:
A. Provide galvanized, cast-metal conduit bodies of type, shapes, and sizes to suit respective
locations and installation. Construct with threaded conduit entrance ends and removable
covers. Provide corrosion-resistant screws.
B. Aluminum boxes and fitting shall not be permitted.
2.5 CONDUIT CONNECTIONS:
A. Box connectors 3/4" and larger shall be insulated, throat-type or equal type plastic bushings.
Provide double locknuts and insulating plastic bushings for RMC and IMC terminating at panels
and boxes.
B. Where RMC penetrates building, manholes, or vault walls and floors below grade, provide
sealing bushings with external membrane clamps as applicable. Provide segmented internal
sealing bushings in all raceways penetrating building walls and slabs below grade, and in all
above grade raceway penetrations susceptible to moisture migration into building through
raceway. Where RMC terminates in manhole, vault, or pull box, provide insulated grounding
bushings. Also see Section 260135 – Electrical Boxes and Fittings.
C. Install OZ type "B" connectors for all conduits 1" and larger.
D. Provide cable supports in all vertical risers in accordance with NEC 300-19.
2.6 EXPANSION FITTINGS:
A. Provide expansion joint fittings in all conduit runs crossing structural expansion joints, whether
above-grade, in slab-on-grade, or in suspended slabs. Provide OZ type "AX" or approved
equivalent, size to the raceway.
2.7 ACCESSORIES:
A. Provide all accessories including, but not necessarily limited to, bushings, knockout closures,
locknuts, offset connectors, etc. of types, shapes, and sizes to suit respective locations and
Bid DA14027DFCM
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