§75.900-4. Testing, examination, and maintenance of circuit breakers; record.
30 C.F.R. § 75.900-4
The operator of any coal mine shall maintain a written record of each test, examination, repair, or adjustment of all circuit breakers protecting low- and medium-voltage circuits serving three-phase alternating current equipment used in the mine. Such record shall be kept in a book approved by the Secretary.
Notes, amendments, and revision history
Amendments
[35 FR 17890, Nov. 20, 1970, as amended at 60 FR 33723, June 29, 1995]
Authority
Authority: 30 U.S.C. 811, 813(h), 957.
Source
Source: 35 FR 17890, Nov. 20, 1970, unless otherwise noted.
Amendments
[35 FR 17890, Nov. 20, 1970, as amended at 60 FR 33723, June 29, 1995]