§ 75.800 - High-voltage circuits; circuit breakers.

Latest version.

§ 75.800 High-voltage circuits; circuit breakers.

[Statutory Provisions]

High-voltage circuits entering the underground area of any coal mine shall be protected by suitable circuit breakers of adequate interrupting capacity which are properly tested and maintained as prescribed by the Secretary. Such breakers shall be equipped with devices to provide protection against under-voltage grounded phase, short circuit, and overcurrent.

                    
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§ 75.800 - High-voltage circuits; circuit breakers.

§ 75.800 High-voltage circuits; circuit breakers.