A. Every metallic sheath, armor, or conduit enclosing a power conductor shall be electrically continuous throughout and shall be grounded effectively.
B. Every metallic frame, casing, or other enclosure of stationary electric equipment that can become electrified through failure of insulation or by contact with energized parts shall be grounded effectively, or equivalent protection shall be provided.
C. When electric equipment is operated from a three-phase alternating current circuit originating in a transformer that is connected to provide a neutral point, a continuous grounding conductor of adequate size shall be installed and connected to the neutral point and to the frame of the power-utilizing equipment. Such grounding conductor shall be grounded at the neutral point and at intervals along the conductor, if feasible. A suitable circuit breaker or switching device shall be provided having a ground-trip coil connected in series with the grounding conductor to provide effective ground-fault tripping.
1966, c. 594, § 45.1-79; 1994, c. 28, § 45.1-161.281; 2021, Sp. Sess. I, c. 387.
Structure Code of Virginia
Title 45.2 - Mines, Minerals, and Energy
Chapter 9 - Requirements Applicable to Surface Coal Mines
§ 45.2-901. Regulations governing conditions and practices at surface coal mines
§ 45.2-902. Standards for regulations
§ 45.2-903. Safety examinations
§ 45.2-904. Records of examinations
§ 45.2-905. Areas with safety or health hazards; duties of surface mine foreman
§ 45.2-906. Personal protection devices and practices
§ 45.2-909. First aid equipment
§ 45.2-910. First aid training
§ 45.2-911. Attention to injured persons
§ 45.2-913. Duties in case of fire
§ 45.2-915. Haulage and mobile equipment; operating condition
§ 45.2-916. Equipment operation
§ 45.2-917. Safety measures on equipment
§ 45.2-918. Transportation of personnel
§ 45.2-920. Shop and other equipment
§ 45.2-922. Stairways, platforms, runways, and floor openings
§ 45.2-923. Loading and haulage work area requirements
§ 45.2-924. Equipment operation
§ 45.2-925. Control of dust and combustible material
§ 45.2-929. Circuit breakers and switches
§ 45.2-930. Electrical trailing cables
§ 45.2-931. Surface storage of explosives and detonators
§ 45.2-933. Minimum blasting practices
§ 45.2-935. Inspection of electric equipment and wiring; checking and testing methane monitors
§ 45.2-936. Highwall inspections
§ 45.2-937. Penetration of underground mines; testing
§ 45.2-938. Safety precautions
§ 45.2-939. Surface coal mining; distance from wells; requirements