Specification

Section 28 0528.33
DEVICE BOXES FOR ELECTRONIC SAFETY AND SECURITY
28 0528.33 - 5
3.2 EXAMINATION
A. Examine surfaces and spaces to receive appliance/device boxes for compliance with installation
tolerances and other conditions affecting performance of appliance/device box installation. Do not
proceed with installation until unsatisfactory conditions have been corrected.
B. Notify the Engineer/Owner of conditions that may adversely affect the installation or do not comply with
NFPA 70 and 72 Standards.
3.3 INSTALLATION
A. Install appliance/device boxes as indicated, according to manufacturer's written instructions. Provide an
appliance/device box for each circuit indicated. Do not gang raceways appliance/device boxes, without
specific approval from the Engineer. Do not group home runs or circuits without approval from the
Engineer.
B. Appliance/Device Boxes:
1. Provide appliance/device boxes and covers as shown on the Contract Documents and as
needed. Verify that the appropriate cover type and depth is provided for each type of wall and
finish.
2. Paint appliance/device boxes as required to meet Code or Owner’s requirements.
3. Coordinate box locations with building surfaces and finishes to avoid bridging wainscots, joints,
finish changes, etc.
4. Install boxes in dry locations (not wet, corrosive, or hazardous).
5. Attach boxes securely to building structure with a minimum of two fasteners. Provide
attachments to withstand a force of 22.6 kg minimum, applied vertically or horizontally.
6. Install boxes at heights indicated on the drawings.
7. Recessed mounted outlet boxes:
a. Recess boxes in wall and ceiling surfaces in finished areas. Set boxes plumb, level,
square and flush with finished building surfaces to within one-sixteenth inch for each
condition. Set boxes so that box openings in building surfaces are within one-eighth inch
of edge of material cut-out and fill tight to box with building materials. Openings shall
extend at least to the finished wall surface and extend not more than 1/8 inch beyond the
finished wall surface. Provide backing for boxes using structural material to prevent
rotation on studs or joists.
b. Install floor boxes level and adjust to finished floor surface.
C. Box Support Brackets:
1. Provide box support brackets as required.
2. Mount brackets level and square with finished building surfaces to within one-sixteenth inch for
each condition. Align appliance/device boxes and extension rings using centerline and mid-line
markings.
3. Securely fasten brackets to studs. Securely fasten device boxes and extension rings to brackets.
D. Extension Rings:
1. Provide extension rings as required.
2. Align extension rings to boxes and brackets using centerline and mid-line markings.
3. Securely fasten extension rings to device boxes and box support brackets.
3.4 GROUNDING/BONDING:
A. Grounding and bonding work shall comply with the Uniform Building Code, Uniform Fire Code, WAC,
National Electrical Code, and UL 467, ANSI/TIA/EIA standards and the references listed in PART 1 –