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 36 - Work Procedures and Operating Procedures
Section 2940.9 - Protection from Backfeed Voltages
Universal Citation: 8 CA Code of Regs 2940.9
Current through Register 2024 Notice Reg. No. 38, September 20, 2024
Before contacting the high voltage side of deenergized transformer(s), or conductor(s) connected thereto, all possible sources of backfeed shall be eliminated by:
(a) disconnecting or grounding the high voltage side, or
(b) disconnecting or short circuiting the low voltage side.
EXCEPTION: System(s) worked as energized.
1. New section filed 2-22-88; operative 3-23-88 (Register 88, No. 9).
2. Editorial correction of first paragraph (Register 95, No. 32).
Note: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.
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