I'm sorry and with all due respect, fixtures (UL) listed as
stage and studio cannot be hard wired by the electrical code. For one
point, a
fixture listed for hard wired use would never be allowed to get as hot as a quartz
ers.
Bill is 100% correct.
Here are some of the the relevant requirements from sections 1 and 26 of UL 1573 S
tage and Studio Luminaires and Connector Strips(copyright
Underwriters Laboratories):
1 Scope
1.1 These requirements
cover stage and studio luminaires rated 600 volts or less for use in theaters,
studios, and similar locations in accordance with Articles 520 and 530 of the National Electrical Code,
NFPA 70.
1.2 These requirements
cover borderlights, spotlights, floodlights,
footlights, professional photographic
lights,
portable strip lights, and the like, that use
incandescent,
fluorescent, high-intensity discharge,
xenon, and other high-pressure
electric discharge lamps, as well as
connector strips,
drop boxes, and the
like, when rigged similarly to borderlights. These requirements do not
cover stage and studio luminaires
using
carbon arc lamps.
1.3 These requirements do not
cover miscellaneous special purpose lights,
amateur movie lights, or
lighting intended for residential use.
26 Power Supply Connections
26.3 A
portable stage luminaire shall be provided with a length of flexible
cord or cable or special
conductor assembly that complies with (a) – (e). A
portable connector strip shall be provided with a length
of flexible
cord or cable that complies with (a) and (c) – (e).
a) A flexible
cord shall have a serviceability
rating at least equal to extra-hard-usage types such
as Type G, S, SE, SEO, SO, ST, STO, or W.
Exception No. 1: Still photography lights are not prohibited from being provided with a flexible
cord
having a serviceability
rating at least equal to hard-usage types such as Type SJ,
SJO, SJT, or
equivalent
power supply cords.
Exception No. 2:
Portable stage luminaires are not prohibited from being provided with a flexible
cord having a serviceability
rating at least equal to hard-usage types such as Type SJ,
SJO, SJT,
or equivalent
power supply cords providing that the supply
cord is not greater than 1 m (3.3 feet)
in length and is rated at not more than 20A.
b) A special assembly of conductors used in lieu of the flexible
cord or cable of
portable stage
luminaires shall consist of stranded conductors rated minimum 125°C (257°F) and an outer
glass fiber sleeve with a wall
thickness of at least 0.64 mm (0.025 inch). The conductors and
sleeving shall be maximum 1 m (3.3 feet) in length.
Exception: The special assembly of conductors are not required to include an outer glass fiber
sleeve when the conductors are part of an appliance wiring material that includes an overall
jacket
or outer sleeving and the appliance wiring material is equivalent to the special assembly of
conductors described above with regard to resistance to abrasion and
conductor insulation
damage. For example, appliance wiring material Style 4418 has been determined to be equivalent
to the special assembly of conductors.
c) The flexible
cord, cable, or special
conductor assembly shall be sized to have an
ampacity
that corresponds to the electrical
rating of the equipment but shall not be smaller than 0.82
mm2(18
AWG) flexible
cord, cable, or
conductor, as applicable.
d
) The flexible cord, cable, or special assembly of conductors shall be terminated by an
attachment plug that is of the grounding type.
ST