Grounding metallic sheaths, armors, and conduits enclosing power conductors. Short circuit protection dual element fuses current ratings maximum values.Ĭlamping of trailing cables to equipment.īreaking trailing cable and power cable connections. Short circuit protection use of fuses approval by the Secretary. Short circuit protection ratings and settings of circuit breakers. Short circuit protection of trailing cables. List of Permissible Electric Face Equipment Approved by the Bureau of Mines Prior to May 23, 1936
Lightning arresters ungrounded and exposed power conductors and telephone wires.ĭeenergization of self-propelled electric face equipment installation requirements.ĭeenergization of self-propelled electric face equipment performance requirements.Įlectric face equipment electric equipment used in return air outby the last open crosscut maximum level of alternating or direct electric current between frames of equipment. Main power circuits disconnecting switches locations. Main power circuits disconnecting switches. Incandescent lamps, overload and short circuit protection. Plans for insulation of existing bare power wires and cables.Įlectric equipment and circuits overload and short circuit protection.Įlectric equipment and circuits overload and short circuit protection minimum requirements. Power wires and cables insulation and protection. Low-, medium-, or high-voltage distribution circuits and equipment repair.Įlectric equipment examination, testing and maintenance.Įlectric conductor capacity and insulation.Įlectrical connections or splices suitability.Ĭommunication wires and cables installation insulation support. Repair of energized trolley wires training. Mines classed gassy use and maintenance of permissible electric face equipment.Įlectric face equipment requirements for permissibility.Įlectric face equipment permissible condition maintenance requirements.Įlectric equipment other than power-connection points outby the last open crosscut return air permissibility requirements.Ĭhanges in electric system map recording.Įlectric power circuit and electric equipment deenergization. Permissibility of new, replacement, used, reconditioned, additional, and rebuilt electric face equipment. Statement listing all electric face equipment. Permissible electric face equipment maintenance. New openings mines above water table and never classed gassy. Permissible electric face equipment coal seams above water table. Other low horsepower electric face equipment. Maintenance of incombustible content of rock dust. Mine ventilation plan submission and approval.Įscapeways bituminous and lignite mines.Ībatement of dust water or water with a wetting agent. Hazardous conditions and violations of mandatory health or safety standards posting, correcting, and recording. Seal strengths, design applications, and installation.Īctions in response to AMS malfunction, alert, or alarm signals. Worked-out areas and areas where pillars are being recovered. Intentional changes in the ventilation system. Main mine fan stoppage with persons underground.Īir quality detectors and measurement devices. Supplemental support materials, equipment and tools.Įvaluation and revision of roof control plan. Rehabilitation of areas with unsupported roof.
#RUBBER HOSE 2 DUPLICATE RIG MANUAL#
Manual installation of temporary support. Installation of roof support using mining machines with integral roof bolters.Īutomated Temporary Roof Support (ATRS) systems. Protection from falls of roof, face and ribs. Records of certified and qualified persons. Qualified hoisting engineer qualifications. Repair of energized surface high voltage lines qualified person. Tests for methane qualified person additional requirement. Tests for methane and for oxygen deficiency qualified person. Mandatory Safety Standards - Underground Coal Mines