Section 296-307-41047. What electrical requirements apply to LP-gas installations?

(1) Electrical equipment and wiring must be specified by and installed according to chapter 296-307 WAC Part T, for ordinary locations.

(2) Fixed electrical equipment and wiring installed within classified areas must comply with Table U-5 and must be installed according to chapter 296-307 WAC Part T.

EXCEPTION:	This provision does not apply to fixed electrical equipment at residential or commercial installations of LP-gas systems, LP-gas used as a motor fuel, or to LP-gas system installations on commercial vehicles.

TABLE U-5

1	The classified area must not extend beyond an unpierced wall, roof, or solid vaportight partition.
2	See chapter 296-46 WAC, and chapter 296-306A WAC Part T.
3	When classifying the extent of a hazardous area, consider the possible variations in the spotting of tank cars and tank vehicles at the unloading points and the effect these variations of actual spotting point may have on the point of connection.
4	Ventilation, either natural or mechanical, is considered adequate when the concentration of the gas in a gas-air mixture does not exceed twenty-five percent of the lower flammable limit under normal operating conditions.

[Statutory Authority: RCW 49.17.040. WSR 98-24-096, § 296-307-41047, filed 12/1/98, effective 3/1/99. WSR 97-09-013, recodified as § 296-307-41047, filed 4/7/97, effective 4/7/97. Statutory Authority: RCW 49.17.040, [49.17.]050 and [49.17.]060. WSR 96-22-048, § 296-306A-41047, filed 10/31/96, effective 12/1/96.]

RCW 49.17.040. WSR 98-24-096, § 296-307-41047, filed 12/1/98, effective 3/1/99. WSR 97-09-013, recodified as § 296-307-41047, filed 4/7/97, effective 4/7/97. Statutory Authority: RCW 49.17.040, [49.17.]050 and [49.17.]060. WSR 96-22-048, § 296-306A-41047, filed 10/31/96, effective 12/1/96.

Rules

296-307,296-307,296-46,296-306A,