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 33 - Mine and Tunnel Installations
Section 2921 - Disconnecting Means

A switch meeting the requirements of Article 20 or 21 shall be installed at each transformer or motor location for disconnecting the transformer or motor. The switch shall open all ungrounded conductors of a circuit simultaneously.

1. Editorial correction filed 11-2-83 (Register 83, No. 45).

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