2.4.14.3
Receptacles
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NOTE: Specify receptacles for multiple girder
cranes. Specify ground fault protection for outside
cranes. Delete requirement for receptacle in cab
when not applicable.
**************************************************************************
Receptacles shall be single-phase, 120-volt 15-amp, grounded, duplex types
complete with metal weather-proof enclosure with self-closing weatherproof
receptacle cover. A receptacle shall be provided on the trolley at each
end of the front bridge walkway in the vicinity of bridge travel drive
motors and in the cab. Several receptacles shall be provided in the
vicinity of the control equipment equally spaced every 3 m 10 feet.
Breakers used to protect circuits supplying the receptacles for outside
cranes shall incorporate ground fault current interruption feature and meet
the requirements of UL 943.
2.4.14.4
Lighting
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NOTE: Specify lighting for outdoor cranes or in
dimly lighted areas.
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Control panels shall be provided with a 120-volt lamp fixture with an
unbreakable lens and switch. Floodlights shall be provided to illuminate
the work area under the crane and drum area on crane and shall be
controlled from crane control station. Floodlights shall be metal halide
industrial luminaries. Each floodlight shall be totally enclosed,
vapor-tight design, gasketed and shall be provided with a heat-resistant
and impact-resistant glass lens. Floodlights shall be spaced and attached
to underside of crane to provide uniform lighting.
2.4.14.5
Anti-Condensation Heaters
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NOTE: Motor heaters recommended for outdoor cranes,
unheated warehouse service cranes or any other
condensing high-humidity application; if not desired
delete this paragraph. Thermostatically-controlled
heaters is a designer option.
**************************************************************************
Motor and control panels shall be equipped with anti-condensation heaters.
Thermostatically-controlled heaters shall be provided in each
static-control panel to keep control enclosure temperatures at or above 0
degrees C. Circuit breaker combination magnetic starter shall be NEMA Type
[1] [3R] [12] enclosure. Magnetic starter shall be equipped with
manually-reset overload relays and interlocked with the mainline disconnect
so that anti-condensation heaters are de-energized when the mainline
contactor is energized and the magnetic starter is energized when the
mainline contactor is de-energized.
2.4.14.6
Wind Indication and Alarm
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NOTE: Specify location of wind alarm station for
SECTION 14630A
Page 47
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