Code of Virginia

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Code of Virginia
Title 45.2. Mines, Minerals, and Energy
Chapter 9. Requirements Applicable to Surface Coal Mines
10/4/2022

§ 45.2-929. Circuit breakers and switches.

A. An automatic circuit breaking device or fuse of the correct type and capacity shall be installed so as to protect each piece of electric equipment and power circuit against excessive overload. Wire or another conducting material shall not be used as a substitute for a properly designed fuse, and every circuit breaking device shall be maintained in safe operating condition.

B. Operating controls, such as switches, starters, or 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. An insulating mat or other electrically nonconductive material shall be kept in place at each power-control switch and at stationary machinery where a shock hazard exists.

E. Suitable warning signs shall be posted conspicuously at every high-voltage installation.

F. Every power wire or cable shall have adequate current-carrying capacity, be guarded from mechanical injury, and be installed in a permanent manner.

G. Every power circuit shall be labeled to indicate the unit or circuit that it controls.

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

I. Every device that is installed on or after July 1, 2005, that provides either short circuit protection or protection against overload shall conform to the minimum requirements for protection of electric circuits and equipment of the National Electrical Code in effect at the time of its installation.

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

K. Every trailing cable purchased on or after July 1, 2005, shall meet the minimum requirements for ampacity provided in the standards of the Insulated Cable Engineers Association/National Electrical Manufacturers Association in effect at the time such cable is 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, § 45.1-161.282; 1999, c. 256; 2005, c. 3; 2021, Sp. Sess. I, c. 387.

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.