This information is provided free of charge by the Department of Industrial Relations from its web site at www.dir.ca.gov. 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 http://www.dir.ca.gov/od_pub/disclaimer.html.


Subchapter 17. Mine Safety Orders
Article 41. Telephones

Return to index
New query

§7166. Telephones for Shaft Work.

When a shaft-sinking or shaft-deepening operation reaches a depth of 100 feet below the shaft-sinking hoist, a telephone system shall be installed for communication between the shaft crew and the hoistman.

It is recommended that a portable type of telephone be provided for the shaft crew so that it can be kept near their working place during working hours.

Go BackGo Back to the Mine Safety Orders, Article 41 Table of Contents