Electric equipment and wiring that extends to an underground area shall be inspected by a certified person at least once a week and more often if necessary to ensure safe operating conditions. Any hazardous condition found shall be corrected or the equipment or wiring shall be removed from service. Such surface inspection is also required […]
A. A mine foreman shall inspect the face of each highwall for a distance of 25 feet in both directions from an auger or highwall miner operation (i) before any such operation begins and at least once during each coal producing shift and (ii) frequently during any period of heavy rainfall or intermittent freezing and […]
A. A qualified person shall test for the presence of methane and for a deficiency of oxygen, using an approved device, at the entrance to an auger hole or at a highwall miner entry when either such entry point penetrates a worked-out area of an underground mine. B. If one percent or more of methane […]
A. No person shall enter an auger hole or highwall miner entry without prior approval from the Chief. B. Every auger hole or highwall miner entry shall be blocked with highwall spoil or other suitable material before it is abandoned. C. Every auger or highwall mining machine that is exposed to any highwall or explosion […]
