WAC
296-307-372 covers the requirements for electric equipment and wiring in locations that are classified based on the properties of the flammable vapors, liquids or gases, or combustible dusts or fibers that may be present and the likelihood that a flammable combustible concentration or quantity is present. Each room, section, or area must be considered individually to determine its classification.
All requirements in this part apply to hazardous locations, unless otherwise indicated.
[Statutory Authority: RCW
49.17.010,
49.17.040,
49.17.050, and
49.17.060. WSR 20-21-091, § 296-307-37203, filed 10/20/20, effective 11/20/20. Statutory Authority: RCW
49.17.040. WSR 98-24-096, § 296-307-37203, filed 12/1/98, effective 3/1/99. WSR 97-09-013, recodified as § 296-307-37203, 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-37203, filed 10/31/96, effective 12/1/96.]