OSHA – Applicable Code Notations

29 CFR 1926.404 (b)(1)(ii) - Wiring Design and Protection

Ground-fault circuit interrupters. All 120-volt, single-phase, 15- and 20-ampere receptacle outlets on construction sites, which are not a part of the permanent wiring of the building or structure and which are in use by employees, shall have approved ground-fault circuit interrupters for personal protection. Receptacles on a two-wire, single-phase portable or vehicle-mounted generator rated not more than 5 kW, where the circuit conductors of the generator are insulated from the generator frame and all other grounded surfaces, need not be protected with ground-fault circuit interrupters.

29 CFR 1926.405 (a)(2)(ii)(G) - Wiring methods, components, and equipment for general use

Portable electric lighting used in wet and/or conductive locations, as for example, drums, tanks, and vessels, shall be operated at 12 volts or less. However, 120-volt lights may be used if protected by a ground-fault circuit interrupter.

NEC – Applicable Code Notations

Article 511.12 – Commercial Garages

Ground-fault Circuit-Interrupter Protection for Personnel. All 125-volt, single-phase, 15- and 20-ampere receptacles installed in areas where electrical diagnostic equipment, electrical hand tools, or portable lighting equipment are to be used shall have ground-fault circuit-interrupter protection for personnel.

Article 527 – Temporary Installations (Construction Sites)

527.1 Scope – The provisions of this article apply to temporary electrical power and lighting installations.

527.4 General –

(A) Services – Services shall be installed in conformance with Article 230.

(B) Feeders – Feeders shall be protected as provided in Article 240. They shall originate in an approved distribution center. Conductors shall be permitted within cable assemblies or within multi-conductor cords or cables of a type identified in Table 400.4 for hard usage or extra-hard usage.

(C) Branch Circuits – All branch circuits shall originate in an approved power outlet or panelboard. Conductors shall be permitted within cable assemblies or within multi-conductor cord or cable of a type identified in Table 400.4 for hard usage or extra-hard usage. All conductors shall be protected as provided in Article 240.

(F) Lamp Protection – All lamps for general illumination shall be protected from accidental contact or breakage by a suitable fixture or lampholder with a guard.

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.

Article 600.10 – Portable or Mobile Signs

(2) Ground-Fault Circuit Interrupter. Portable or mobile signs shall be provided with factory-installed ground-fault circuit-interrupter protection for personnel. The ground-fault circuit interrupter shall be an integral part of the attachment plug or shall be located in the power supply cord within 300mm (12in.) of the attachment plug.

Article 680.42 Outdoor Installations of Pools and Spas

A spa or hot tub installed outdoors shall comply with the provisions of Parts I and II of this article, except as permitted in 680.42(A) and (B), that would otherwise apply to pools installed outdoors.

(1) An outlet that supplies a self-contained spa or hot tub, or packaged spa or hot tub equipment assembly shall be protected by a ground-fault circuit-interrupter.

(2) Cord-and-Plug Connections. Cord-and-Plug connections with a cord not longer than 4.6m (15ft) shall be permitted where protected by ground-fault circuit interrupter.

Article 680 – Fountains and Water Displays

680.5 Ground-Fault Circuit-Interrupters. Ground-fault circuit interrupters (GFCIs) shall be self-contained units, circuit-breaker or receptacle types, or other listed types.

Article 555 – Marinas and Boatyards

555.1 Scope. This article covers the installation of wiring and equipment in the areas comprising fixed or floating piers, wharfs, docks, and other areas in marinas, boatyards, boat basins, boathouses, and similar occupancies that are used, or intended for use, for the purpose of repair, berthing, launching, storing or fueling of small craft and the moorage of floating buildings.

555.3 Receptacles. Where shore power is supplied, those accommodations for boats 20 ft. (6.1 m) or less in length shall be equipped with shore power receptacles of a locking and grounding type rated at not less than 20 amperes. Where shore power is supplied to accommodations for boats longer than 20 ft. (6.1 m) in length, shore-power receptacles of a locking and grounding type rated at 30 amperes or more shall be provided. Fifteen- and 20-ampere, single-phase, 125-volt receptacles other than those supplying shore power to boats located at piers, wharfs and other locations shall be protected by ground-fault circuit-interrupters.

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