2.25
FRESNEL-LENS LUMINAIRES
Special type [_____] luminaires shall consist of mounting bracket, head,
socket, reflector, and fresnel-lens assembly for multiple circuit.
Luminaire shall be of weatherproof, dust tight, and insect proof
construction. Mounting bracket shall be for [crossarm] [[38.1] [50.8] mm
[1-1/2] [2] in slip fitter] [wood-pole] [pipe] mounting. Readily
accessible means shall be provided to permit horizontal adjustment and
locking of the luminaire within a 30 degree arc each side of the center,
and tilting and locking the luminaire within a 30 degree arc each side of
vertical. The length of the mounting bracket shall be such that the center
of the luminaire, when hanging vertically, will be not less than 200 mm 8
inches nor more than 600 mm 2 feet from the surface of the pole or
cross-arm. [Luminaire shall have a 300 watt incandescent lamp that will
produce an average candela not less than 3000.] [Luminaire shall have a 500
watt incandescent lamp that will produce an average candela of not less
than 5000.] The unit shall be provided with an auxiliary reflector of
white glossy-type porcelain enamel or aluminum reflecting surface. The
assembly, consisting of a 180 degree cylindrical fresnel lens and a
semicylindrical reflector housing, shall produce a horizontal beam spread
of approximately 180 degrees, and a vertical beam spread of approximately
15 to 25 degrees.
2.26
FLUORESCENT FLOODLIGHTS, EXTERIOR
Special type [_____] fluorescent floodlight fixtures shall be suitable for
outdoor installations and shall use a 2.4 meter 96 inch T-12, rapid start,
1.5 ampere lamp. The fixture shall consist of a highly polished aluminum
reflector with specular finish. The fixture sockets shall be spring
loaded, and shall have plunger sockets with silver-plated contacts and
neoprene boots. The fixture shall have provisions for aiming throughout
360 degrees of rotation with a graduated aiming dial. Door assembly shall
consist of a stainless steel frame, a clear acrylic plastic cover, a sponge
neoprene weatherproof gasket, and stainless steel hinges and latches.
Housing shall be finished with [green] [_____] acrylic baked enamel. The
fixture shall be equipped with a mounting hub assembly at each end. The
fixture shall be provided with a thermally protected, weatherproof, high
power factor ballast, not integral with the fixture, for remote mounting.
The ballast shall be rated for -29 degrees C -20 degrees F for cold weather
starting.
2.27
TRANSFORMERS
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NOTE: In corrosive atmospheres, specify
transformers with PVC coating on exterior metallic
surfaces. Consult transformer manufacturers about
derating that might result from the application of
additional protective coatings.
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Transformers shall conform to UL 506. Exterior transformer cases shall be
given rust-inhibiting treatment and standard finish by the manufacturer.
2.27.1
Outdoor Dry-Type Lighting Transformers
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NOTE: Transformers will be provided in the security
SECTION 16528A
Page 29
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