§ 45.2-928. Grounding
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 […]
§ 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 […]
§ 45.2-927. Transformers
A. Unless a surface transformer is isolated by elevation to a height of eight feet or more above the ground, it shall be enclosed in a transformer house or surrounded by a suitable fence at least six feet high. If the enclosure or fence is made of metal, such enclosure or fence shall be grounded […]
§ 45.2-926. Overhead high-potential power lines; surface transmission lines; electric wiring in surface buildings
A. Overhead high-potential power lines shall be (i) placed at least 15 feet above the ground and 20 feet above any driveway or haulage road, (ii) installed on insulators, and (iii) supported and guarded to prevent contact with other circuits. B. Surface transmission lines shall be protected against short circuits and lightning. C. Electric wiring […]
§ 45.2-923. Loading and haulage work area requirements
A. Every ramp or dump shall be of solid construction, ample width, and ample clearance, and headroom shall be kept reasonably free of spillage. B. Berms or guards shall be provided on the outer bank of every elevated haulage road. Every berm shall be constructed of substantial material to the mid-axle height of the largest […]
§ 45.2-924. Equipment operation
A. If a truck spotter is used, he shall be well in the clear while any truck is backing into dumping position and dumping. Every truck spotter shall use lights at night to direct backing and dumping operations. B. Every dipper, bucket, scraper blade, or similar movable part shall be secured or lowered to the […]
§ 45.2-925. Control of dust and combustible material
A. Where a surface coal mining operation raises an excessive amount of dust into the air, such dust shall be allayed at its sources by the use of water, water with a wetting agent added to it, or another effective method. B. Drilling in rock shall be done wet or other means of dust control […]
§ 45.2-922. Stairways, platforms, runways, and floor openings
A. Stairways, platforms, and runways shall be provided where persons work or travel. B. Stairways, elevated platforms, elevated runways, and floor openings shall be equipped with suitable handrails or guardrails. C. Stairways, elevated platforms, runways, and floor openings shall be provided with toe boards. Stairways, platforms, and runways shall be kept clear of stumbling and […]
§ 45.2-920. Shop and other equipment
A. The following shall be guarded and maintained adequately: 1. Gears, sprockets, pulleys, fan blades or propellers, friction devices, and couplings with protruding bolts or nuts. 2. Shafting and projecting shaft ends that are within seven feet of the floor or the platform level. 3. Belt, chain, or rope drives that are within seven feet […]
§ 45.2-921. Hydraulic hoses
Every hydraulic hose that is used on equipment shall have the hydraulic hose manufacturer’s rated pressure in pounds per square inch (psi) permanently affixed on the outer surface of the hose and repeated at least every two feet. Every hose installed on an automatic displacement hydraulic system shall either (i) have a four-to-one safety factor […]