WSR 18-11-115 PERMANENT RULES DEPARTMENT OF LABOR AND INDUSTRIES [Filed May 22, 2018, 10:34 a.m., effective July 1, 2018] Effective Date of Rule: July 1, 2018. Purpose: The department of labor and industries is adopting amendments to the ground-fault protection requirements in marinas as specified by the 2017 National Electrical Code (NEC) 555.3. The adopted rule extends the 100mA ground-fault level allowance for feeders until September 1, 2019, when the requirements as published in the 2020 NEC will take effect.
The department received a petition for rule making in October 2017, to extend the 100mA ground-fault level allowance for feeders in the existing rule beyond July 1, 2018. The petition and the supporting materials challenged the appropriateness and feasibility of the 2017 NEC standard and the fact that needed experts were not involved in past NEC code development processes. The adopted rule allows the petitioner and other interested parties an opportunity to further engage in discussions at the national level as part of the 2020 code development process. Citation of Rules Affected by this Order: Amending WAC 296-46B-555 Special occupancies—Marinas, boatyards, and commercial and noncommercial docking facilities. Adopted under notice filed as WSR 18-08-074 on April 3, 2018. Number of Sections Adopted in Order to Comply with Federal Statute: New 0, Amended 0, Repealed 0; Federal Rules or Standards: New 0, Amended 0, Repealed 0; or Recently Enacted State Statutes: New 0, Amended 0, Repealed 0. Number of Sections Adopted at the Request of a Nongovernmental Entity: New 0, Amended 1, Repealed 0. Number of Sections Adopted on the Agency's own Initiative: New 0, Amended 1, Repealed 0. Number of Sections Adopted in Order to Clarify, Streamline, or Reform Agency Procedures: New 0, Amended 0, Repealed 0. Number of Sections Adopted using Negotiated Rule Making: New 0, Amended 0, Repealed 0; Pilot Rule Making: New 0, Amended 0, Repealed 0; or Other Alternative Rule Making: New 0, Amended 1, Repealed 0. Date Adopted: May 22, 2018. Joel Sacks Director
AMENDATORY SECTION (Amending WSR 17-12-021, filed 5/30/17, effective 7/1/17)
WAC 296-46B-555 Special occupancies—Marinas, boatyards, and commercial and noncommercial docking facilities.
(1) Until ((July 1, 2018)) 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 ((and)), 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.
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