                                 CODE OF VIRGINIA

 CIRCUIT BREAKERS AND SWITCHES (§ 45.2-810)

A. Automatic circuit breaking devices or fuses of the correct type and capacity
shall be installed so as to protect each piece of electrical equipment and each
power circuit against excessive overload; however, this requirement shall not
apply to any locomotive that is operated regularly on a grade that exceeds five
percent. Wire or other 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. An automatic circuit breaker of the correct type and capacity shall be
installed on each resistance-grounded circuit used underground. Such circuit
breaker shall be located at the power source and equipped with devices to
provide protection against under-voltage, grounded phase, short circuit, and
overcurrent.

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

D. A disconnecting switch shall be installed underground in each main power
circuit within approximately 500 feet of the bottom of each shaft or borehole
and at any other place at which a main power circuit enters the mine.

E. Each piece of electrical equipment and each circuit shall be provided with
switches or other controls of safe design, construction, and installation.

F. Insulating mats or other electrically nonconductive material shall be kept in
place at each power-control switch and at any piece of stationary machinery at
which a shock hazard exists.

G. Each circuit breaker, disconnecting device, and switch shall be marked for
identification.

HISTORY: Code 1950, § 45-82.3; 1954, c. 191; 1966, c. 594, § 45.1-80; 1994, c.
28, § 45.1-161.189; 1999, c. 256; 2021, Sp. Sess. I, c. 387.