1. (a) disconnecting or grounding the high voltage side, or

2. (b) disconnecting or short circuiting the low voltage side.

   Exception: System(s) worked as energized.

Before contacting the high voltage side of deenergized transformer(s), or conductor(s) connected thereto, all possible sources of backfeed shall be eliminated by:

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

History

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).