msha hoisting regulations
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. 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. 57.19006 Automatic hoist braking devices. Fixed ladders 70 degrees to 90 degrees from the horizontal and 30 feet or more in length shall have backguards, cages or equivalent protection, starting at a point not more than seven feet from the bottom of the ladders. (a) Combustible liquids, including oil or grease, shall be stored in non-glass containers or storage tanks. (4) A mine operator must comply with the terms of any approved application for a special extension, post a copy of the approved application for a special extension at the mine site for the duration of the special extension period, and provide a copy of the approved application to the authorized representative of miners. 57.9201 Loading, hauling, and unloading of equipment or supplies. Delay connector means a nonelectric short interval delay device for use in delaying blasts which are initiated by detonating cord. (a) MSHA will use a single sample collected and analyzed by the Secretary in accordance with the requirements of this section as an adequate basis for a determination of noncompliance with the DPM limit. 57.19076 Maximum speeds for hoisting persons in buckets. If the main fan is located underground, (A) The cable or conductors supplying power to the fan shall be routed through areas free of fire hazards; or, (B) The main fan shall be equipped with a second, independent power cable or set of conductors from the surface. 57.18028 Mine emergency and self-rescuer training. Travelways steeper than 35 degrees from the horizontal shall be provided with ladders or stairways. Insulation and fittings for power wires and cables. (1) Are positioned to prevent persons from falling on or against the conveyor; (2) Will be able to withstand the vibration, shock, and wear to which they will be subjected during normal operation; and. The main intake and return air currents in single shafts shall be separated by ventilation tubing, curtain walls, or partitions. (1) Provided at intervals adequate to assure the safety of persons along underground haulageways where continuous clearance of at least 30 inches cannot be maintained from the farthest projection of moving equipment on at least one side of the haulageway; and. If used as an alternative, reversal of mechanical ventilation shall. Purchase records noting sulfur content of diesel fuel. Air passing unsealed areas (I-A, II-A, III, and V-A mines). Surface fan installations and mine openings. When persons are on the shaft bottom, a chain ladder, wire rope ladder, or other extension ladders shall be used from the fixed ladder or lower limit of the escape hoist to the shaft bottom. Overhead high-potential powerlines shall be installed as specified by the National Electrical Code. Such devices shall be maintained in accordance with manufacturers' instructions, or an equivalent maintenance and calibration procedure. Please do not provide confidential This incorporation by reference has been approved by the Director of the Federal Register in accordance with 5 U.S.C. All persons shall wear suitable hard hats when in or around a mine or plant where falling objects may create a hazard. (c) Tests for methane shall be conducted immediately before nonapproved equipment is taken to a face or bench after blasting. The controls shall be located so that spills or overruns will not endanger persons. 57.6131 Location of explosive material storage facilities. [53 FR 32528, Aug. 25, 1988; 53 FR 44588, Nov. 4, 1988, as amended at 60 FR 33722, June 29, 1995; 67 FR 38385, June 4, 2002; 68 FR 19347, Apr. Supplies shall not be stacked or stored in a manner which creates tripping or fall-of-material hazards. Powder chest means a substantial, nonconductive portable container equipped with a lid and used at blasting sites for explosives other than blasting agents. Thawing pipes electrically, except with heat tape. Persons shall not ride the bail, rim, bonnet, or crosshead of any shaft conveyance except when necessary for inspection and maintenance, and then only when suitable protection for persons is provided. 57.12011 High-potential electrical conductors. Transporting tools and materials on locomotives. Substantial construction means construction of such strength, material, and workmanship that the object will withstand all reasonable shock, wear, and usage to which it will be subjected. Materials that can create hazards if accidentally liberated from their containers shall be stored in a manner that minimizes the dangers. (2) Upon request from an authorized representative of the Secretary of Labor, the Secretary of Health and Human Services, or from the authorized representative of miners, mine operators must promptly provide access to any record listed in the table in this section. 1 In this table, combustible material does not refer to installed wiring or track support. (c) When a truck operator cannot clearly recognize the spotter's signals, the truck shall be stopped. (g) Safety fuse shall be ignited only with devices designed for that purpose. The instruction shall be given by MSHA personnel or by persons who are certified by the District Manager of the area in which the mine is located. (2) Combustible liquids in closed containers. (b) Persons attempting to free chute hangups shall be experienced and familiar with the task, know the hazards involved, and use the proper tools to free material. If it is found or suspected that any part is not functioning properly, the hoist shall not be used until the malfunction has been located and repaired or adjustments have been made. (3) Where a mine has been classified in Categories I through V after the effective date of these standards and category reassignment is being considered, the mine shall comply with the standards applicable to the category to which presently assigned until category placement is final. 57.3401 Examination of ground conditions. Capped fuse means a length of safety fuse to which a blasting cap has been attached. All metal enclosing or encasing electrical circuits shall be grounded or provided with equivalent protection. Background and more details are available in the (b) Under this standard, the following may be present in the hoist house in quantities necessary for the day-to-day maintenance of the hoist machinery: (1) Flammable liquids in safety cans or in other containers placed in tightly closed cabinets. (b) Guards shall be securely in place while machinery is being operated, except when testing or making adjustments which cannot be performed without removal of the guard. Where mine cars are hoisted by cage or skip, means for blocking cars shall be provided at all landings and also on the cage. 24, 1988, 57.22601 was stayed until further notice. 57.22219 Seals and stoppings (II-A mines). This is an automated process for They are divided into the following classes: Class II liquidsthose having flash points at or above 100 F (37.8 C) and below 140 F (60 C). Persons shall stay clear of suspended loads. Hoist means a power driven windlass or drum used for raising ore, rock, or other material from a mine, and for lowering or raising persons and material. Roll protection means a framework, safety canopy or similar protection for the operator when equipment overturns. Switches shall be locked out or other measures taken which shall prevent the power circuits from being energized without the knowledge of the individuals working on them. Booster fans (I-A, II-A, III, and V-A mines). Combustible means capable of being ignited and consumed by fire. (1) The Assistant Secretary shall give notice of discretionary review to the mine operator and representative of the miners. 57.22203 Main fan operation (I-C mines). Safety defects; examination, correction and records. The valve shall be closed except when the equipment is being operated. (3) A mine operator must retain a log of any equipment tagged pursuant to this section. (b) Spotters shall use signal lights to direct trucks where visibility is limited. (b) After blasting, if the monitoring system indicates that methane in the mine is less than 1.0 percent, persons may enter the mine. Dust, gas, mist, and fume surveys shall be conducted as frequently as necessary to determine the adequacy of control measures. (b) Underground electronic or electrical blasting operations that are capable of being initiated by lightning shall be suspended and all persons withdrawn from the blast area or to a safe location. Transformer enclosures shall be kept locked against unauthorized entry. Notification of commencement of operations and closing of mines. Storage facility means the entire class of structures used to store explosive materials. An explosive material containing substantial portions of a liquid, oxidizers, and fuel, plus a thickener. Fire protection shall be of a type, size, and quantity that can extinguish fires of any class in their early stages which could occur as a result of the fire hazards present. Company name and address, U.S. Department of Labor Mine Safety and Health Administration OMB Number 1219-0127. Revisions of the system shall be noted and updated at least annually. Within 30 seconds after the warning is given, the conveyor shall be started or a second warning shall be given. ASTM E162Surface Flammability of Materials Using a Radiant Heat Energy Source. Upon or near all such safeguards, trespass warnings and appropriate danger notices shall be posted. (c) ROPS labeling. (a) Provided with a pressure-recording system; and. When explosive material is loaded pneumatically into a blasthole in a manner that generates a static electricity hazard. 57.11012 Protection for openings around travelways. Flame spread rating means the numerical designation that indicates the extent flame will spread over the surface of a material during a specified period of time. [50 FR 4082, Jan. 29, 1985, as amended at 60 FR 33722, June 29, 1995]. 552(a) and 1 CFR part 51. The Administrator for Metal and Nonmetal Mine Safety and Health (Administrator) shall be responsible for category and subcategory placement, change in placement, and notification of placement of mines. The IME is located at 1120 19th Street NW., Suite 310, Washington, DC 200363605; 2024299280; https://www.ime.org. Secondary blasting shall not be done when 0.5 percent or more methane is present. (1) A mine operator must authorize each miner operating diesel-powered equipment underground to affix a visible and dated tag to the equipment when the miner notes evidence that the equipment may require maintenance in order to comply with the maintenance standards of paragraph (a) of this section. 57.19069 Entering and leaving conveyances. The official, published CFR, is updated annually and available below under Overhead protection for shaft deepening work. 57.8531 Construction and maintenance of ventilation doors. 57.19063 Persons allowed in hoist room. Columns and the drills mounted on them shall be anchored firmly before and during drilling. (c) Fire alarm systems shall be maintained in operable condition. (b) Only persons engaged in making such ventilation changes shall be permitted in the mine during changes. (2) Onsite firefighting equipment for fighting fires beyond their early stages, or the mine shall have made prior arrangements with a local fire department to fight such fires. Safe means of access shall be provided and maintained to all working places. (1) The location of the stored material and the storage practices used; (2) The transportation and use of the explosive material; (3) The nature of the explosive material, including its sensitivity; (4) Any other factor deemed relevant to the safety of miners potentially exposed to the hazards associated with the mixing of the bulk explosive material underground.