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Code · CFR · Title 30 — Mineral Resources · Part 75 · § 75.900-4

§ 75.900-4. Testing, examination, and maintenance of circuit breakers; record.

63 words·~1 min read·/us/cfr/t30/s§ 75.900-4·

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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. \[35 FR 17890, Nov. 20, 1970, as amended at 60 FR 33723, June 29, 1995\]
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§ 75.900-4
Testing, examination, and maintenance of circuit breakers; record.
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