portable electrical hand tools, electrical diagnostic equipment, or portable lighting equipment are to be used shall be provided with GFCI protection for personnel. Receptacles in other locations shall be protected in accordance with 210.8(B).
(2) Marking. Receptacles other than those supplying shore power to boats shall be permitted to be housed in marine power outlets with the receptacles that provide shore power to boats, provided they are marked to clearly indicate that they are not to be used to supply power to boats.
555.21 Motor Fuel Dispensing Stations — Hazardous
(Classified) Locations.
(A) General. Electrical wiring and equipment located at or serving motor fuel dispensing locations shall comply with Article 514 in addition to the requirements of this article. All electrical wiring for power and lighting shall be in stalled on the side of the wharf, pier, or dock opposite from the liquid piping system.
FPN: For additional information, see NFPA 303-2006, Fire Protection Standard for Marinas and Boatyards, and NFPA 30A-2008, Motor Fuel Dispensing Facilities and Repair Garages.
(B) Classification of Class I, Division 1 and 2 Areas. The following criteria shall be used for the purposes of applying Table 514.3(B)(1) and Table 514.3(B)(2) to motor fuel dispensing equipment on floating or fixed piers, wharfs, or docks.
(1) Closed Construction. Where the construction of floating docks, piers, or wharfs is closed so that there is no space between the bottom of the dock, pier, or wharf and the water, such as concrete enclosed expanded foam or similar construction, and having integral service boxes with supply chases, the following shall apply:
(a) The space above the surface of the floating dock, pier, or wharf shall be a Class I, Division 2 location with distances as identified in Table
514.3(B)(1), Dispenser and Outdoor.
(b) The space below the surface of the floating dock, pier, or wharf, having areas or enclosures such as tubs, voids, pits, vaults, boxes, depressions, fuel piping chases, or similar spaces where flammable liquid or vapor can accumulate, shall be a Class I, Division 1 location.
Exception No. J: Dock, pier, or wharf sections that do not support fuel dispensers and abut but are 6.0 m (20
ft) or more from dock sections that support fuel dispenser(s) shall be permitted to be Class I, Division 2 where documented air space is provided between dock sections to permit flammable liquids or vapors to dissipate and not travel to these dock sections. Such documentation shall comply with 500.4(A).
Exception No. 2: Dock, pier, or wharf sections that do not support fuel dispensers and do not directly abut sections that support fuel dispensers shall be permitted to be unclassified where documented air space is provided and where flammable liquids or vapors cannot travel to these dock sections. Such documentation shall comply with 500.4(A).
FPN: See 500.4(A) for documentation requirements.
(2) Open Construction. Where the construction of piers, wharfs, or docks is open, such as decks built on stringers supported by pilings, floats, pontoons, or similar construction, the following shall apply:
(a) The area 450 mm (18 in) above the surface of the dock,