This information is provided free of charge by the Department of Industrial Relations from its web site at These regulations are for the convenience of the user and no representation or warranty is made that the information is current or accurate. See full disclaimer at

Subchapter 7. General Industry Safety Orders
Group 18. Explosives and Pyrotechnics
Article 116. Handling and Use of Explosives--Blasting Operations

Return to index
New query

§5279. Loading and Blasting Near and Under Power Lines.

(a) When electric initiated blasting under, or near overhead power lines, the leading wires shall be placed at right angles to such lines and shall be securely anchored to prevent the blasting circuit conductors from being thrown into the overhead lines.

(b) When blasting under, or near overhead power lines, all loaded holes shall be covered with a nonconductive blasting mat anchored to prevent the mat or other material from being blown into the overhead lines.


Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.


1. Amendment of section heading and section and new Note filed 7-11-2003; operative 8-10-2003 (Register 2003, No. 28).

Go BackGo Back to Article 116 Table of Contents