Article
527.6 – Ground-Fault Protection for Personnel. Ground-fault protection for personnel for all temporary
wiring installations shall be provided to comply with 527.6(A) and (B).This section shall apply only to temporary wiring installations used to
supply temporary power to equipment used by personnel during construction,
remodeling, maintenance, repair, or demolition of buildings, structures,
equipment, or similar activities.
(A)
Receptacle Outlets.All 125-volt, single-phase, 15-, 20-, and 30-ampere
receptacle outlets that are not a part of the permanent wiring of the building
or structure and that are in use by personnel shall have ground-fault circuit
interrupter protection for personnel.If
a receptacle(s) is installed or exists as part of the permanent wiring of the
building or structure and is used for temporary electric power, ground-fault
circuit interrupter protection for personnel shall be provided.For the purposes of this section, cord sets or devices incorporating
listed ground-fault circuit interrupter protection for personnel identified for
portable use shall be permitted.
Exception: In industrial establishments only, where
conditions of maintenance and supervision ensure that only qualified personnel
are involved, an assured equipment grounding conductor program as specified in
527.6 (B)(2) shall be permitted for only those receptacle outlets used to supply
equipment that would create a greater hazard if power was interrupted or having
a design that is not compatible with GFCI protection.
(B)
Use of Other Outlets.Receptacles other than 125-volt, single-phase, 15-, 20-, and
30-ampere receptacles shall have protection in accordance with (1) or, the
assured equipment grounding conductor program in accordance with (2).
(1)
GFCI Protection.Ground-fault circuit interrupter protection for personnel.
(2)
Assured Equipment Grounding Conductor Program.A written assured equipment grounding conductor
program continuously enforced at the site by one or more designated persons to
ensure that equipment grounding conductors for all cord sets, receptacles that
are not a part of the permanent wiring of the building or structure, and
equipment connected by cord and plug are installed and maintained in accordance
with the applicable requirements.