housing. The camera and lens contained in a camera housing shall be
installed on a camera support as shown. Any ancillary mounting hardware
needed to install the support and to install the camera on the support
shall be provided as part of the support. The camera support shall be
capable of supporting the equipment to be mounted on it including wind and
ice loading normally encountered at the site.
2.8.1
Environmentally Sealed Camera Housing
The housing shall be designed to provide a condensation free environment
for camera operation. The housing shall be constructed to be dust and
water tight, and fully operational in 100 percent condensing humidity. The
housing shall be purged of atmospheric air and pressurized with dry
nitrogen, shall be equipped with a fill valve, overpressure valve, and
shall have a humidity indicator visible from the exterior. Housing shall
not have a leak rate greater than 13.8 kPa (2 pounds per square inch) 2
pounds per square inch at sea level within a 90 day period. The housing
shall be equipped with supplementary camera mounting blocks or supports as
needed to position the specified camera and lens to maintain the proper
optical centerline. All electrical and signal connections required for
operation of the camera and lens shall be supplied. The housing shall
provide the environment needed for camera operation, and shall keep the
viewing window free of fog, snow, and ice. The housing shall be equipped
with a sunshield, and both the housing and the sunshield shall be white. A
mounting bracket which can be adjusted to center the weight of the housing
and camera assembly shall be provided as part of the housing.
2.8.2
Indoor Camera Housing
The housing shall be designed to provide a tamper resistant enclosure for
indoor camera operation. The housing shall be equipped with tamper proof
latches, and shall be supplied with the proper mounting brackets for the
specified camera and lens. The housing and appurtenances shall be a color
that does not conflict with the building interior color scheme.
2.8.3
Interior Mount
The camera mount shall be suitable for either wall or ceiling mounting and
shall have an adjustable head for mounting the camera. The wall mount and
head shall be constructed of aluminum or steel with a corrosion-resistant
finish. The head shall be adjustable for 360 degrees of pan, and not less
than 90 degrees of tilt.
2.8.4
Low Profile Ceiling Mount
A tamperproof ceiling housing shall be provided for the camera. The
housing shall be low profile and shall be suitable for replacement of 610
by 610 mm 2 by 2 foot ceiling tiles. The housing shall be equipped with a
camera mounting bracket and shall allow a 360 degree viewing setup.
2.8.5
Interior Dome Housing
An interior dome housing shall be provided for each camera as shown. The
dome housing shall be a pendant mount, pole mount, ceiling mount, surface
mount, or corner mount as shown. The lower dome shall be black opaque
acrylic and shall have a light attenuation factor of not more that 1
f-stop. The housing shall be equipped with integral pan/tilt complete with
wiring, wiring harnesses, connectors, receiver/driver, pan/tilt control
system, pre-position cards, or any other hardware and equipment as needed
SECTION 16751A
Page 27
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