for operation while submerged shall be located below the electrical datum plane.
682.11 Location of Service Equipment On land, the ser- vice equipment for floating structures and submersible electrical equipment shall be located no closer than 1.5 m (5 ft) horizontally from the shoreline and live parts shall be elevated a minimum of 300 mm (12 in.) above the electrical datum plane. Service equipment shall disconnect when the water level reaches the height of the established electrical datum plane.
682.12 Electrical Connections. All electrical connections not intended for operation while submerged shall be located at least 300 mm (12 in.) above the deck of a floating or fixed structure, but not below the electrical datum plane.
682.13 Wiring Methods and Installation. Liquidtight flexible metal conduit or liquidtight flexible nonmetallic conduit with approved fittings shall be permitted for feeders and where flexible connections are required for services. Extra-hard usage portable power cable listed for both wet locations and sunlight resistance shall be permitted for a feeder or a branch circuit where flexibility is required. Other wiring methods suitable for the location shall be permitted to be installed where flexibility is not required. Temporary wiring in accordance with 590.4 shall be permitted.
682.14 Disconnecting Means for Floating Structures or
Submersible Electrical Equipment.
(A) Type. The disconnecting means shall be permitted to consist of a circuit breaker, switch, or both that simultaneously opens all ungrounded circuit conductors, and shall be properly identified as to which structure or equipment it controls.
(B) Location. The disconnecting means shall be readily accessible on land and shall be located in the supply circuit ahead of the structure or equipment connection. The disconnecting means shall be within sight of, but not closer than 1.5 m (5 ft) horizontally from, the edge of the shoreline and live parts elevated a minimum of
300 m (12 in.) above the electrical datum plane.
682.15 Ground-Fault Circuit-Interrupter (GFCI) Pro tection. Fifteen- and 20-ampere single-phase, 125-volt through 250-volt receptacles installed outdoors and in or on floating buildings or structures within the electrical datum plane area that are used for storage, maintenance, or repair where portable electric hand tools, electrical diagnostic equipment, or portable lighting equipment are to be used shall be provided with GFCI protection. The GFCI protection device shall be located not less than 300 mm (12 in.) above the established electrical datum plane.
III. Grounding and Bonding
682.30 Grounding. Wiring and equipment within the scope of this article shall be grounded as specified in Part III of 553, 555.15, and with the requirements in Part HI of this article.
682.31 Equipment Grounding Conductors.
(A) Type. Equipment grounding conductors shall be insulated copper conductors sized in accordance with
250.122 but not smaller than 12 AWG.
(B) Feeders. Where a feeder supplies a remote panelboard, an insulated equipment grounding conductor shall extend from a grounding terminal in the service to a grounding terminal and busbar in the remote panelboard.
(C) Branch Circuits. The insulated equipment grounding conductor for branch circuits shall terminate at a grounding terminal in a remote panelboard or the grounding terminal in