A. Electric equipment taken into or used inby the last open crosscut or in other than intake air shall be permissible equipment.
B. Permissible equipment used in areas specified in subsection A shall be maintained in permissible condition.
C. Electric equipment shall not be taken into or operated in any place where a methane level of one percent or more is detected.
D. Voltage limitations for underground installations of electric equipment using direct or alternating current shall conform to the voltages provided in 30 C.F.R. § 18.47.
E. Electric equipment must be permissible and maintained in a permissible condition when such equipment is located within 150 feet of pillar workings or longwall faces.
F. Electric conductors and cables installed in or by the last open crosscut, or within 150 feet of pillar workings or longwall faces, shall be:
1. Shielded high-voltage cables supplying power to permissible longwall and other equipment;
2. Interconnecting conductors and cables of permissible longwall equipment;
4. Cables and conductors supplying power to low and medium voltage permissible equipment.
G. Electric equipment shall be maintained in safe operating condition at all times while it is being used, and any unsafe condition shall be corrected promptly or the equipment shall be removed from service.
History
Code 1950, § 45-83; 1954, c. 191; 1966, c. 594, § 45.1-83; 1993, c. 442; 1994, c. 28; 1999, c. 256; 2011, cc. 826, 862; 2015, cc. 103, 397.
