(1) Electrical
distribution system. Service equipment, separately derived systems, feeders and
circuits for each amusement ride, amusement structure or concession must comply
with all applicable requirements of the National Electrical Code and chapter
296-46A WAC, as amended.
(2)
Flexible multiconductor cords must be connected to equipment by approved
connectors designed for the purpose or by listed cord caps. Individual
conductors of multiconductor cords in sizes #2 AWG and larger are permitted to
be connected by listed and labeled connection systems in accordance with
Article 520-53(k) of the National Electrical Code. Where conductors are
connected individually by such connection systems, the outer jacket of
multiconductor cord must be secured to the electrical equipment independent
from the receptacles and plugs by approved cable grips that are installed in a
manner to prevent pressure from being applied to the receptacles and
plugs.
(3) Individual, single
conductor, insulated, portable power cable, in addition to complying with
Section 525-13 of the National Electrical Code, must comply with the following:
(a) All conductors of the feeder or circuit
including the equipment grounding conductor must originate in the same
electrical equipment and terminate in the same equipment.
(b) All conductors of the feeder or circuit
including the ungrounded, grounded, and equipment grounding conductors must run
together, except for portions installed within approved cable protection
systems.
(c) The cables must be
secured to the electrical equipment independent from the cable receptacles and
plugs by approved cable grips that prevent pressure from being applied to the
connectors.
(d) The cables must be
connected to electrical equipment by approved listed and labeled connection
systems in compliance with Section 520-53(k) of the National Electrical
Code.
(4) Disconnecting
means. A separate, enclosed, externally operable fused switch or circuit
breaker must be installed on each amusement ride, structure or concession to
disconnect all electrical equipment. The disconnecting means must be readily
accessible and identified as the disconnecting means. The disconnecting means
is not required to be readily accessible when a disconnecting means meeting the
requirements of NEC 525-30 is also installed. Where more than one power supply
is employed, the disconnecting means must be grouped.
(5) Rotating equipment. Components of
amusement rides or structures that rotate more than three hundred sixty degrees
and which have electrically operated equipment, must be supplied by approved
collector rings that are totally enclosed or located so they are accessible to
authorized personnel only. The collector rings must be factory produced with an
equipment grounding segment having a voltage and current rating that equals or
exceeds the rating of the current carrying segments. Collector rings must have
an ampacity not less than one hundred twenty-five percent of the full-load
current of the largest device served plus the full-load current of all other
devices served. Collector rings for control and signal purposes must have an
ampacity not less than one hundred twenty-five percent of the full-load current
of the largest device served plus the full-load current of all other devices
served.
(6) Equipment grounding.
All noncurrent carrying metal parts of amusement rides and structures must be
grounded by an equipment grounding conductor routed with the feeder or circuit
conductors in accordance with the National Electrical Code and these rules. The
metallic structure must not be used as a current carrying conductor.
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EXCEPTION:
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The metallic structure is permitted to be used as the
return path for low voltage systems that do not exceed thirty volts, provided
that the ungrounded conductors are protected by an overcurrent device in
accordance with the National Electrical Code and the system is factory built
for such use.
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(7)
Existing concessions or games electrical systems must comply with the National
Electrical Code and must be maintained in full compliance with codes and
standards in effect at the time they were manufactured. When new concessions or
games are purchased, manufactured or constructed, or where existing concessions
or games have major modification, the electrical system must comply with this
chapter and the edition of the National Electrical Code in effect at the time.
All concessions and games must be identified in or on the disconnecting means
and in records furnished to the department with the edition of the National
Electrical Code the electrical system is intended to comply with, or be
certified and labeled by the department as a factory assembled
structure.