Carnivals, Circuses, Fairs, and Similar Events
525.23 GFCI Protection
This section was extensively rewritten to clarify where GFCI protection is required, where GFCI protection is not required, and where GFCI protection is not permitted.
(A) Where GFCI Protection Is Required. Figure 525-1
(1) GFCI protection is required for all 15 and 20A, 125V nonlocking type receptacles used for disassembly and reassembly of amusement rides and attractions, or readily accessible to the general public.
(2) GFCI protection is required for all equipment that is readily accessible to the general public if it is supplied from a 15 or 20A, 125V branch circuit.
Circuits are rated 120V and receptacles are rated 125V. I'm sure the 2005 Code will change the voltage rating of this circuit from 125V to 120V.
Ground-fault protection can be an integral part of the attachment plug or located in the power-supply cord, within 12 in. of the attachment plug. Listed cord sets incorporating ground-fault circuit-interrupter for personnel can be used to meet this requirement.
(B) GFCI Protection Not Required. GFCI protection is not required for receptacles of the locking type.
(C) GFCI Protection Not Permitted. GFCI protection is not permitted for egress lighting.
The purpose of not permitting egress lighting to be GFCI protected is to ensure that exit lighting is maintained.
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