16500-4
LIGHTING
PART 3 - EXECUTION
3.1
3.2
INSTALLATION
A. Refer to the contract documents for fixture mounting heights.
B. Mount fixtures in true vertical and horizontal alignment.
C. Fixture locations shown on the drawings are diagrammatic only. They are shown for
quantity and approximate locations only. Adjust the location of any lighting fixture
as required to avoid interferences with existing conditions, equipment, and of the
work of other trades.
D. Each fixture provided shall be a completely finished unit with all components,
mounting and/or hanging devices necessary for the proper installation of the
particular fixture.
E. Mount all emergency lighting, exit signs, and light fixtures as indicated on the
contract drawings when possible.
F. Ground all lighting fixtures and lighting poles per the National Electric Code, Article
250, as shown on drawings, and specification 16450.
G. Hangers and supports shall be anchored to channels in the ceiling construction, to
the structural slab or to structural members above the suspended ceiling.
H. Fixtures mounted in suspended "lay-in" ceilings shall be supported from inverted
"tee-bars" using "Caddy" clips suitable for the fixture type installed.
I. All suspended fixtures shall be pendant mounted and be suspended from the ceiling
using cast swivel type connectors and 3/4 inch rigid galvanized steel conduit
minimum, unless otherwise specified by the fixture manufacturer.
J. Provide all necessary accessories for "end-to-end" mounting where continuous rows
of fluorescent fixtures are indicated.
K. Coordinate all recessed fixtures with the ceiling grid system prior to installation of
the ceiling grid system where applicable. Lighting fixtures and mounting shall be
compatible with the ceiling grid system.
L. Where multiple switching of fluorescent fixtures is indicated, the outside two (2)
lamps of each fixture in the controlled area shall be switched separately from the
interior (center) lamp(s).
TESTING
A. Refer to Section 16950 for testing requirements.
END OF SECTION
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