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WAC 296-46B-555

Special occupanciesMarinas, boatyards, and commercial and noncommercial docking facilities.

(1) Until September 1, 2019, the ground-fault protection level specified in 2017 NEC 555.3 is amended to allow a maximum of: 100 mA for overcurrent devices supplying feeder conductors not supplying primary windings of transformers; and 30 mA for overcurrent devices supplying branch circuit conductors, outlets, and feeder conductors supplying primary windings of transformers. On September 1, 2019, ground-fault protection for marinas, boatyards, and commercial and noncommercial docking facilities will be as published in the 2020 NEC.
(2) For the purposes of NEC 555.5, transformer terminations must be located a minimum of 12 inches above the deck of a dock (datum plane requirements do not apply for this section).
(3) For the purposes of NEC 555.7, adjacent means within sight.
(4) For the purposes of NEC 555.9, all electrical connections must be installed a minimum of 12 inches above the deck of a pier unless the connections are approved for wet locations (datum plane requirements do not apply for this section).
(5) For the purposes of NEC 555.10, all enclosures must be corrosion resistant. All gasketed enclosures must be arranged with a weep hole to discharge condensation.
(6) For the purposes of NEC 555.11, gasketed enclosures are only required for wet locations.
(7) For the purposes of NEC 555.13, the following wiring methods are allowed:
(a) All wiring installed in a damp or wet location must be suitable for wet locations.
(b) Extra-hard usage portable power cables rated not less than 75°C, 600 volts, listed for wet locations and sunlight resistance and having an outer jacket rated for the environment are permitted. Portable power cables are permitted as a permanent wiring method under or within docks and piers or where provided with physical protection. The requirements of NEC 555.13 (B)(4)(b) do not apply.
(c) Overhead wiring must be installed at the perimeter of areas where boats are moored, stored, moved, or serviced to avoid possible contact with masts and other parts of boats.
(d) For the purposes of NEC 555.13 (B)(5), the wiring methods of Chapter 3 NEC will be permitted.
(8) For the purposes of NEC 555.19, receptacles must be mounted not less than 12 inches above the deck surface of the pier or dock (datum plane requirements do not apply for this section). Shore power receptacles that provide shore power for boats must be rated not less than 20 amperes and must be single outlet type and must be of the locking and grounding type or pin and sleeve type.
[Statutory Authority: RCW 19.28.010 and 19.28.031. WSR 18-11-115, § 296-46B-555, filed 5/22/18, effective 7/1/18. Statutory Authority: Chapter 19.28 RCW, RCW 19.28.010 and 19.28.031. WSR 17-12-021, § 296-46B-555, filed 5/30/17, effective 7/1/17. Statutory Authority: Chapter 19.28 RCW. WSR 14-11-075, § 296-46B-555, filed 5/20/14, effective 7/1/14; WSR 13-03-128, § 296-46B-555, filed 1/22/13, effective 3/1/13. Statutory Authority: RCW 19.28.006, 19.28.010, 19.28.031, 19.28.041, 19.28.061, 19.28.101, 19.28.131, 19.28.161, 19.28.171, 19.28.191, 19.28.201, 19.28.211, 19.28.241, 19.28.251, 19.28.281, 19.28.311, 19.28.321, 19.28.400, 19.28.420, 19.28.490, 19.28.551. WSR 08-24-048, § 296-46B-555, filed 11/25/08, effective 12/31/08; WSR 06-05-028, § 296-46B-555, filed 2/7/06, effective 5/1/06. Statutory Authority: RCW 19.28.006, 19.28.010, 19.28.031, 19.28.041, 19.28.061, 19.28.101, 19.28.131, 19.28.161, 19.28.171, 19.28.191, 19.28.201, 19.28.211, 19.28.241, 19.28.251, 19.28.271, 19.28.311, 19.28.321, 19.28.400, 19.28.420, 19.28.490, 19.28.551, 2002 c 249, chapters 34.05 and 19.28 RCW. WSR 03-09-111, § 296-46B-555, filed 4/22/03, effective 5/23/03.]
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