California Code of Regulations
Title 8 - Industrial Relations
Division 1 - Department of Industrial Relations
Chapter 4 - Division of Industrial Safety
Subchapter 5 - Electrical Safety Orders
Group 2 - High-Voltage Electrical Safety Orders
Article 31 - Lightning Arresters
Section 2900 - Flammable Atmospheres

Lightning arresters (e.g., expulsion arresters, valve arresters with external series gap, etc.) that produce or expel ionized gases to the atmosphere during normal operation shall not be used in flammable atmosphere locations. (See Article 34.)

(Title 24, Part 3, Section 3-280 - 6.)

1. Editorial correction including renumbering of former Article 80 to Article 31 filed 11-2-83 (Register 83, No. 45).

Note: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code; and Section 18943(c), Health and Safety Code.