msha hoisting regulations

Use of liquefied petroleum gases underground shall be limited to maintenance work. Air receiver tanks also shall be equipped with indicating pressure gages which accurately measure the pressure within the air receiver tanks. When persons are working in a shaft Men Working in Shaft signs shall be posted at all devices controlling hoisting operations that may endanger such persons. (f) Holes shall not be reloaded for at least 12 hours when the blastholes have failed to break as planned. During emergency braking, the deceleration shall not exceed 16 feet per second per second. [52 FR 24941, July 1, 1987, as amended at 60 FR 30401, June 8, 1995], (1) Two independent power sources for main mine ventilation fans and those fans directly ventilating retort bulkheads, and for retort blowers, and provisions for switching promptly from one power source to the other; and. Table 57.5075(a)Diesel Particulate Recordkeeping Requirements. This incorporation by reference has been approved by the Director of the Federal Register in accordance with 5 U.S.C. A suitable means of protection shall be provided for the employee when lighting the burner. Blowout means a sudden, violent, release of gas or liquid due to the reservoir pressure in a petroleum mine. Upon completion of an investigation, the committee shall make a written report of the findings. This can be accomplished by incorporating an arcing control device in the blasting circuit or by interrupting the circuit with an explosive device attached to one or both lead lines and initiated by a 25-millisecond delay electric detonator. In addition, the self-contained breathing system shall be capable of a quick connect with the approved 2-hour self-contained breathing apparatus above. Transporting tools and materials on locomotives. Protective equipment or clothing for welding, cutting, or working with molten metal. 57.19062 Maximum acceleration and deceleration. (ii) No greater than the yield point of the bolt or anchorage capacity of the rock. The training must include. (a) Positions which hinder their access to the control levers; (b) Insecure footing or insecure staging; or. Grizzlies and other stationary sizing devices shall be securely anchored. Repairs or maintenance on machinery or equipment shall be performed only after the power is off, and the machinery or equipment blocked against hazardous motion. [50 FR 4082, Jan. 29, 1985, as amended at 71 FR 16667, Apr. (a) Before explosive material is transported in hoist conveyances, (1) The hoist operator shall be notified; and. Actions at 1.0 percent methane (I-C, II-A, II-B, and IV mines). 57.19065 Lowering conveyances by the brakes. If used as an alternative, effective evacuation shall be demonstrated by actual evacuation of all persons underground to the surface in ten minutes or less through routes that will not expose persons to heat, smoke, or toxic fumes in the event of a fire. 57.19105 Landings with more than one shaft entrance. (d) Mine power transformers and stationary equipment not approved by MSHA under the applicable requirements of 30 CFR parts 18 through 36 shall be installed in fresh air or downwind from an atmospheric methane monitor sensor. Movement or operation of equipment near high-voltage powerlines. Booster fans (I-A, II-A, III, and V-A mines). (a) On an annual basis, all persons who are required to go underground shall be instructed in the Mine Safety and Health Administration approved course contained in Bureau of Mines Instruction Guide 19, Mine Emergency Training (September 1972). Trolley wires shall be installed at least seven feet above rails where height permits, and aligned and supported to suitably control sway and sag. Before entering a manway where persons may be working or traveling, a warning shall be given by the person entering the manway and acknowledged by any person present in the manway. (a) Storage tanks for flammable or combustible liquids shall be. In addition, areas containing explosive material at underground areas of a mine can be considered attended when all access to the underground areas of the mine is secured from unauthorized entry. Open flames (I-A, II-A, III, and V-A mines). 12AHalon 1301 Extinguishing Systems. 57.22235 Actions at 1.0 percent methane (I-C, II-A, II-B, and IV mines). (4) Whether or not conditions encountered during primary or access development are transient or permanent. When explosive material is hauled by trolley locomotive, covered, electrically insulated cars shall be used. Pumping equipment and analytical instruments shall be located in intake air. The power cable or conductors shall be located so that an underground fire disrupting power in one cable or set of conductors will not affect the other; or. (1) Securely by clips after making one full turn around the drum spoke; (2) Securely by clips after making one full turn around the shaft, if the drum is fixed to the shaft; or. 57.19068 Orderly conduct in conveyances. A passage, walk, or way regularly used or designated for persons to go from one place to another. (d) Defects on self-propelled mobile equipment affecting safety, which are not corrected immediately, shall be reported to, and recorded by, the mine operator. Explosives, blasting agents, and detonators. 57.12008 Insulation and fittings for power wires and cables. These publications and documents may be obtained from the National Institute of Science and Technology, 100 Bureau Drive, Stop 3460, Gaithersburg, MD 208993460. (a) The mixing of ingredients to produce explosive material shall not be conducted underground unless prior approval of the MSHA district manager is obtained. Secondary safety connection means a second connection between a conveyance and rope, intended to prevent the conveyance from running away or falling in the event the primary connection fails. All mines shall be ventilated mechanically. Safety switch means a sectionalizing switch that also provides shunt protection in blasting circuits between the blasting switch and the shot area. 57.22501 Personal electric lamps (I-A, I-B, I-C, II-A, II-B, III, IV, V-A, and V-B mines). Vertical clearance above stair steps shall be a minimum of seven feet, or suitable warning signs or similar devices shall be provided to indicate an impaired clearance. 57.11027 Scaffolds and working platforms. Each operator of an underground mine shall establish a check-in and check-out system which shall provide an accurate record of persons in the mine. A substantial bulkhead or equivalent protection shall be provided above persons at work deepening a shaft. Loading means placing explosive material either in a blasthole or against the material to be blasted. (g) When grouted fixtures can be tested by applying torque, the first fixture installed in each work place shall be tested to withstand 150 foot-pounds of torque. 57.22313 Explosion-protection systems (I-C mines). (b) Seals shall be of substantial construction. (4) At drum crossover and change-of-layer regions. Electrical cables used to power submersible sump pumps shall be accepted or approved by MSHA as flame resistant, or be installed in continuous metal conduit or metal pipe. Combustible means capable of being ignited and consumed by fire. Fork and other similar types of lift trucks shall be operated with the: (a) Upright tilted back to steady and secure the load; (b) Load in the upgrade position when ascending or descending grades in excess of 10 percent; (c) Load not raised or lowered enroute except for minor adjustments; and. (d) Each mine and mill shall be required to operate in accordance with the safety standards applicable to its particular category or subcategory. Major electrical installation means an assemblage of stationary electrical equipment for the generation, transmission, distribution, or conversion of electrical power. Damaged or deteriorated wire rope shall be removed by cutoff and the rope reterminated where there is. (3) Any group of containers used for storage of more than 60 gallons of flammable or combustible liquids. (3) Be done according to predetermined conditions and procedures. Suitable means that which fits, and has the qualities or qualifications to meet a given purpose, occasion, condition, function, or circumstance. If the PLHCP determines that the miner cannot wear a negative pressure respirator, the mine operator must make certain that the PLHCP evaluates the miner's ability to wear a powered air purifying respirator (PAPR). 1. In granting or withholding approval, the district manager shall consider the potential hazards created by. [50 FR 4082, Jan. 29, 1985, as amended at 60 FR 33722, June 29, 1995]. Such devices may be recovered for reuse after the formation has been depressurized or the well or borehole has been capped or connected to a collection system. (a) If truck spotters are used, they shall be in the clear while trucks are backing into dumping position or dumping. The notice shall specify the suggested changes and refer to the specific findings of fact, conclusions of law, and terms of the initial decision to be reviewed or appealed. Representatives of the mine operator, the miners and the appropriate State agency may participate in the investigation. To protect personnel, material shall not be dropped from an overhead elevation until the drop area is first cleared of personnel and the area is then either guarded or a suitable warning is given. (b) Surveys shall be in accordance with American National Standards (ANSI) Standard N13.81973, entitled Radiation Protection in Uranium Mines, section 14.1 page 12, which is hereby incorporated by reference and made a part hereof. (b) A minimum of three full turns of wire rope shall be on the drum when the rope is extended to its maximum working length. Until the corrective action is completed. Maintenance between machinery or equipment and ribs. Capped primer means a package or cartridge of explosives which is specifically designed to transmit detonation to other explosives and which contains a detonator. A 1-hour self-rescue device approved by MSHA and NIOSH under 42 CFR part 84 shall be made available by the operator to all personnel underground. (b) Whenever a change is made in escape and evacuation plans and procedures for any area of the mine, all persons affected shall be instructed in the new plans or procedures. (d) A competent person shall test the mine atmosphere at each face blasted before work is started. [61 FR 36801, July 12, 1996, as amended at 85 FR 2027, Jan. 14, 2020]. The standards in this subpart apply to underground mines as well as surface mills at Subcategory I-C mines. A container of not over five gallons capacity that is designed to safely relieve internal pressure when exposed to heat and has a spring-closing lid and spout cover. (c) Where persons are required to enter any facility listed in this standard for maintenance or inspection purposes, ladders, platforms, or staging shall be provided. To provide for the safe movement of self-propelled mobile equipment, (a) Rules governing speed, right-of-way, direction of movement, and the use of headlights to assure appropriate visibility, shall be established and followed at each mine; and. (a) A competent person designated by the operator shall examine each working place at least once each shift before miners begin work in that place, for conditions that may adversely affect safety or health. (a) At least once every fourteen calendar days, each wire rope in service shall be visually examined along its entire active length for visible structural damage, corrosion, and improper lubrication or dressing. 57.19120 Procedures for inspection, testing, and maintenance. Secondary blasting shall not be done when 0.5 percent or more methane is present. 57.12083 Support of power cables in shafts and boreholes. Trolley wires and bare power conductors shall be guarded at mantrip loading and unloading points, and at shaft stations. the obligation to appear and compete at the dates and in the venues indicated in the calendar. (2) Where constructed of combustible materials, the outside surfaces shall be coated with at least one inch of construction plaster containing perlite and gypsum; at least one inch of expanded vermiculite, Portland cement and limestone; or other coatings with equivalent fire resistance; Brattice cloth and ventilation tubing shall be approved by MSHA in accordance with 30 CFR part 7, or shall bear a BC or VT acceptance number issued by the MSHA Approval and Certification Center. Any substance classified as a blasting agent by the Department of Transportation in 49 CFR 173.114a(a). 57.16011 Riding hoisted loads or on the hoist hook. (a) Methane monitors shall be installed on continuous mining machines used in or beyond the last open crosscut. Non-electric delay blasting cap means a detonator with an integral delay element and capable of being initiated by miniaturized detonating cord. Other certifications shall be retained for one year. All metal pipelines, 1,000 feet or more in length running parallel to trolley tracks, that are used as a ground return circuit shall be bonded to the return circuit rail at the ends of the pipeline and at intervals not to exceed 500 feet. (2) Separated from explosives or blasting agents by 4 inches of hardwood or equivalent, or a laminated partition. (d) The Administrator shall promptly appoint an MSHA committee to investigate occurrences reported in accordance with paragraph (c) of this section or requests filed in accordance with paragraph (b) of this section. (1) The operator shall promptly notify miners in any affected areas of any conditions found that may adversely affect safety or health and promptly initiate appropriate action to correct such conditions. Rock or supplies shall not be hoisted in the same shaft as persons during shift changes, unless the compartments and dumping bins are partitioned to prevent spillage into the cage compartment. (3) Equipped with an early warning fire detection device that will alert any person who could be endangered by a fire, provided that no person's work station is in the building. Detonating cord. switch to drafting.ecfr.gov. Emergency firefighting drills shall be held at least once every six months for persons assigned surface firefighting responsibilities by the mine operator. (a) The burning rate of each spool of safety fuse to be used shall be measured, posted in locations which will be conspicuous to safety fuse users, and brought to the attention of all persons involved with the blasting operation. Grounding transformer and switchgear enclosures. 57.11026 Protection for inclined fixed ladders. Where access is necessary, suitable clearance shall be provided at stationary electrical equipment or switchgear. The plan shall include: (a) Mine maps or diagrams showing directions of principal air flow, location of escape routes and locations of existing telephones, primary fans, primary fan controls, fire doors, ventilation doors, and refuge chambers. Persons experienced in examining and testing for loose ground shall be designated by the mine operator. In determining the blast area, the following factors, shall be considered: (3) Burden, depth, diameter, and angle of the holes.

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