EXCEPTION: | The metallic structure is permitted to be used as the return path for low voltage systems that do not exceed thirty volts, provided that the ungrounded conductors are protected by an overcurrent device in accordance with the National Electrical Code and the system is factory built for such use. |
Wash. Admin. Code § 296-403A-230
Statutory Authority: RCW 19.28.010, 19.28.031, 19.28.061, 19.28.101, 19.28.171, 19.28.191, 19.28.201, 19.28.251, 19.28.271, 19.28.311, 19.28.321, 67.42.020, 67.42.025, 67.42.050, and chapters 19.28 and 67.42 RCW. 02-21-103, § 296-403A-230, filed 10/22/02, effective 11/22/02.