010 Water heater circuit.
Water heaters with a rated circuit load in excess of 3,500 watts at 208 or 240 volts must be provided with branch circuit conductors not smaller than #10 AWG copper or equal. Overcurrent protection must comply with NEC 422.11(E).
[Statutory Authority: Chapter
19.28 RCW, RCW
19.28.031 and
19.28.251. WSR 24-05-085, § 296-46B-422, filed 2/21/24, effective 4/1/24. 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-422, filed 4/22/03, effective 5/23/03.]