Draft of Proposed Mandatory Safety Standards, Surface Coal Mines and Surface Work Areas of Underground Coal MinesUnited States Department of the Interior, Mining Enforcement and Safety Administration, 1974 - Coal mines and mining - 177 pages |
Common terms and phrases
1817 LIBRARIES 60 degree aerial tramways approved auger AUTHORIZED REPRESENTATIVE blasting agents blasting area blasting devices Boreholes BRAKES buckets CHIGAN CIRCUIT BREAKER COMPRESSED GAS CYLINDERS CONSTRUCTION containing CONVEYANCE conveyors deenergized degree Angle DESIGNED detonating cord disconnecting drilling Electric conductors electric equipment enclosures examination explosives and detonators fail safe feet firing GROUNDING CIRCUIT GROUNDING CONDUCTOR GROUNDING RESISTOR hazard HIGHWALL HOISTS AND CRANES holes HT MS HT inches INSPECTED INSULATED LADDERS least LIQUEFIED AND NONLIQUEFIED LOCKING DEVICES maintained material MAXIMUM Mechanical Splice METALLIC methane MICHIGAN MINIMUM misfired mobile equipment NATIONAL ELECTRICAL CODE NONLIQUEFIED COMPRESSED GAS NUMBER performed PORTABLE POWDER-ACTUATED TOOLS POWER CONDUCTORS powerline PREVENT qualified person RATED CAPACITY repairs REQUIREMENTS SCAFFOLDS Secretary Section SECURED SHORING shots SLINGS slope and shaft slope or shaft STEEL Storage STRUCTURAL SUBPART surface installations Thermal dryer systems TOOLS TRAILING CABLES transported trolley wires Tucked Splice underground UNIV VALVE voltage volume per centum WELDING WIRE ROPE
Popular passages
Page 19 - ... when work requires contact with the wheel below the horizontal plane of the spindle, the angular exposure shall not exceed 125 degrees. In either case the exposure shall begin not more than 65 degrees above the horizontal plane of the spindle.
Page 50 - When a drill is being moved from one drilling area to another, drill steel, tools, and other equipment shall be secured and the mast placed in a safe position.
Page 101 - One portable fire extinguisher shall be provided where welding, cutting, or soldering with arc or flame is performed. (b) Welding, cutting, or soldering with arc or flame within or in the vicinity of any slope or shaft, except where such operations are performed in fireproof enclosures, shall be done under the supervision of a qualified person who shall make a diligent search within or in the vicinity of the slope or shaft for fire during and after such operations. (c) Before welding, cutting, or...
Page 19 - All boilers and pressure vessels shall be constructed, installed, and maintained in accordance with the standards and specifications of the American Society of Mechanical Engineers Boiler and Pressure Vessel Code.
Page 49 - Highwalls; men working. (a) Men, other than those necessary to correct unsafe conditions, shall not work near or under dangerous highwalls or banks. (b) Except as provided in paragraph (c) of this section, men shall not work between equipment and the highwall or spoil bank where the equipment may hinder escape from falls or slides. (c) Special safety precautions shall be taken when men are required to perform repair work between immobilized equipment and the highwall or spoil bank and such equipment...
Page 130 - ... no metal exposed on the inside, located at least twenty-five feet from roadways and power wires, and in a dry, well rock-dusted location protected from falls of roof, except in pitching beds, where it is not possible to comply with the location requirement, such boxes shall be placed in niches cut into the solid coal or rock.
Page 89 - ... for accumulations of methane with means approved by the Secretary for detecting methane and shall make tests for oxygen deficiency with a permissible flame safety lamp or other means approved by the Secretary...
Page 102 - On buildings or structures not adaptable to temporary floors, and where scaffolds are not used, safety nets shall be installed and maintained whenever the potential fall distance exceeds two stories or 25 feet.
Page 42 - ... and a grounding circuit, originating at the grounded side of the grounding resistor, shall extend along with the power conductors and serve as a grounding conductor for the frames of all...
Page 114 - Parts 171-179 of this chapter an explosive is defined as any chemical compound, mixture, or device, the primary or common purpose of which Is to function by explosion, Ie, with substantially instantaneous release of gas and heat, unless such compound, mixture, or device is otherwise specifically classified in Parts 171-179 of this chapter.