Code of Virginia

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Code of Virginia
Title 45.1. Mines and Mining
Chapter 14.4. Requirements Applicable to Surface Coal Mines

§ 45.1-161.282. Circuit breakers and switches.

A. Automatic circuit breaking devices or fuses of the correct type and capacity shall be installed so as to protect all electric equipment and power circuits against excessive overload. Wires or other conducting materials shall not be used as a substitute for properly designed fuses, and circuit breaking devices shall be maintained in safe operating condition.

B. Operating controls, such as switches, starters, and switch buttons, shall be so installed that they are readily accessible and can be operated without danger of contact with moving or live parts.

C. Electric equipment and circuits shall be provided with switches or other controls of safe design, construction and installation.

D. Insulating mats or other electrically nonconductive material shall be kept in place at each power-control switch and at stationary machinery where shock hazards exist.

E. Suitable danger signs shall be posted conspicuously at all high-voltage installations.

F. All power wires and cables shall have adequate current-carrying capacity, shall be guarded from mechanical injury and installed in a permanent manner.

G. Power circuits shall be labeled to indicate the unit or circuit they control.

H. Persons shall stay clear of an electrically powered shovel or other similar heavy equipment during an electrical storm.

I. All devices installed on or after July 1, 2005, which provide either short circuit protection or protection against overload, shall conform to the minimum requirements for protection of electric circuits and equipment of the National Electric Code in effect at the time of their installation.

J. All electric conductors installed on or after July 1, 2005, shall be sufficient in size to meet the minimum current-carrying capacity provided for in the National Electric Code in effect at the time of their installation.

K. All trailing cables purchased on or after July 1, 2005, shall meet the minimum requirements for ampacity provided in the standards of the Insulated Power Cable Engineers Association -- National Electric Manufacturers Association in effect at the time such cables are purchased.

Code 1950, §§ 45-82, 45-82.1, 45-82.3, 45-82.4; 1954, c. 191; 1966, c. 594, §§ 45.1-78, 45.1-80, 45.1-81; 1978, c. 118; 1979, c. 315; 1993, c. 442; 1994, c. 28; 1999, c. 256; 2005, c. 3.

The chapters of the acts of assembly referenced in the historical citation at the end of this section may not constitute a comprehensive list of such chapters and may exclude chapters whose provisions have expired.