30 C.F.R. § 77.800-2 Testing, examination, and maintenance of circuit breakers; record.
Title 30 - Mineral Resources
The operator shall maintain a written record of each test, examination, repair, or adjustment of all circuit breakers protecting high-voltage circuits. Such record shall be kept in a book approved by the Secretary.
Title 30: Mineral Resources
PART 77—MANDATORY SAFETY STANDARDS, SURFACE COAL MINES AND SURFACE WORK AREAS OF UNDERGROUND COAL MINES
Subpart I—Surface High-Voltage Distribution
§ 77.800-2 Testing, examination, and maintenance of circuit breakers; record.
