Overhead drive belts shall be guarded to contain the whipping action of a broken belt if that action could be hazardous to persons. 1291 (30 U.S.C. 57.16001 Stacking and storage of materials. Disconnecting switches that can be opened safely under load shall be provided underground at all branch circuits extending from primary power circuits near shafts, adits, levels and boreholes. (b) When mobile equipment is unattended or not in use, dippers, buckets and scraper blades shall be lowered to the ground. 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. 57.19061 Maximum hoisting speeds. 57.8532 Opening and closing ventilation doors. If you would like to comment on the current content, please use the 'Content Feedback' button below for instructions on contacting the issuing agency. A laminated partition also includes alternative construction materials described in the Institute of Makers of Explosives (IME) Safety Library Publication No. (d) Annual individual gamma radiation exposure shall not exceed 5 rems. Frame grounding or equivalent protection shall be provided for mobile equipment powered through trailing cables. 57.15031 Location of self-rescue devices. A manual master quick-close type air valve shall be installed on all pneumatic-powered equipment if there is a hazard of uncontrolled movement when the air supply is activated. Permanent splices and repairs made in power cables, including the ground conductor where provided, shall be. (c) If the monitoring system indicates that methane in the mine is 0.5 percent or more, the mine shall be ventilated and persons shall not enter the mine until the monitoring system indicates that methane in the mine is less than 0.5 percent. (b) All piping, valves, and fittings shall be. (c) At least once every six months, nondestructive tests shall be conducted of the active length of the rope, or rope diameter measurements shall be made.
eCFR :: 30 CFR Part 56 -- Safety and Health Standards - eCFR :: Home Hoists: . Headframes shall be high enough to provide clearance for overtravel and safe stopping of the conveyance. (2) Automatically deenergize electrical equipment, except power to monitoring equipment determined by MSHA to be intrinsically safe under 30 CFR part 18, and prevent starting such equipment when methane levels reach 1.5 percent; and. A unit, package, or cartridge of explosives which contains a detonator and is used to initiate other explosives or blasting agents. (b) In the event of auxiliary fan failure due to malfunction, accident, power failure, or other such unplanned or unscheduled event: (1) The air quality in the affected active workings shall be tested at least within 2 hours of the discovery of the fan failure, and at least every 4 hours thereafter by a competent person for compliance with the requirements of the applicable standards of subpart D of this part until normal ventilation is restored, or. 57.18009 Designation of person in charge. (a) All underground mines, and the surface mills of Subcategory I-C mines (gilsonite), shall be placed into one of the following categories or subcategories to protect persons against the hazards of methane and dusts containing volatile matter. Procedures during repairs or maintenance. (d) Provided with compressed air lines, waterlines, suitable handtools, and stopping materials. (a) At least once every twelve months, all persons who work underground shall be instructed in the escape and evacuation plans and procedures and fire warning signals in effect at the mine. (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. (6) Notification of the right to appeal the Administrator's determination under 57.22005. Tamping and loading poles shall be of wood or other nonconductive, nonsparking material. Maintenance between machinery or equipment and ribs. (3) An operator must provide access to a miner, former miner, or, with the miner's or former miner's written consent, a personal representative of a miner, to any record required to be maintained pursuant to 57.5071 or 57.5060(d) to the extent the information pertains to the miner or former miner. (c) This provision does not apply to rail equipment. 57.12003 Trailing cable overload protection. Compressed and liquid gas cylinders shall be secured in a safe manner. All buckets shall be stopped after being raised about three feet above the shaft bottom. 57.22216 Separation of intake and return air (I-C mines). Inclined railed walkways shall be nonskid or provided with cleats. The Assistant Secretary shall fix a time for filing any objections to the suggested changes and supporting reasons. (2) The mine operator must certify on the application that the operator has posted one copy of the application at the mine site for at least 30 days prior to the date of application, and has provided another copy to the authorized representative of miners. 57.4262 Underground transformer stations, combustible liquid storage and dispensing areas, pump rooms, compressor rooms, and hoist rooms. For rope lengths less than 4,000 feet: Minimum Value = Static Load (7.0 0.0005L). (ii) Excursion limit. (4) Vented or otherwise constructed to prevent development of pressure or vacuum as a result of filling, emptying, or atmospheric temperature changes. The drill stem shall be resting on the bottom of the hole or on the platform with the stem secured to the mast before attempts are made to straighten a crossed cable on a reel. (1) Constructed of noncombustible materials; or. Man cages and skips used for hoisting or lowering employees or other persons in any vertical shaft or any incline shaft with an angle of inclination of forty-five degrees from the horizontal, shall be covered with a metal bonnet. (b) Upon initial release of gas into the mine atmosphere from boreholes. When explosive material is hauled by trolley locomotive, covered, electrically insulated cars shall be used. The training must include. (b) At the completion of each inspection or test required by this standard, the person making the inspection or test shall certify that the inspection or test has been made and the date on which it was made. The incorporation by reference of these publications is approved by the Director of the Federal Register in accordance with 5 U.S.C. (2) Not be modified, in a manner that obscures visibility necessary for safe operation. The safety cans and cabinets shall be kept away from any heat source, and each cabinet shall be labeled flammables.. Working platforms shall be provided with toeboards when necessary. (3) The make and model number of the equipment for which the ROPS is designed. Areas containing major electrical installations shall be entered only by authorized persons. 57.14111 Slusher, backlash guards and securing. (d) Covered on all combustible interior and exterior structural surfaces with noncombustible material or limited combustible material, such as five-eighth inch, type X gypsum wallboard. Separation of intake and return air (I-A, II-A, III, and V-A mines). Automatic hoists shall be provided with devices that automatically apply the brakes in the event of power failure. (b) Smoking, use of open flames, or other activities that could create an ignition source shall be prohibited at the battery charging station during battery charging. will also bring you to search results. formatting. Mine operators seeking further information regarding the construction and installation of falling object protective structures (FOPS) may consult the following national consensus standards, as applicable. Surface buildings or other similar structures within 100 feet of mine openings used for intake air or within 100 feet of mine openings that are designated escapeways in exhaust air shall be, (a) Constructed of noncombustible materials; or, (b) Constructed to meet a fire resistance rating of no less than one hour; or, (c) Provided with an automatic fire suppression system; or. [52 FR 24941, July 1, 1987, as amended at 52 FR 41397, Oct. 27, 1987; 60 FR 33723, June 29, 1995]. Telegraph, telephone, or signal wires shall not be installed on the same crossarm with power conductors. Electric auxiliary fans shall be approved by MSHA under the applicable requirements of 30 CFR part 18. The eCFR is displayed with paragraphs split and indented to follow Cables shall enter metal frames of motors, splice boxes, and electrical compartments only through proper fittings. Design, installation, and maintenance of railroads. (2) Equipped with a device that automatically deenergizes power in affected workings should the fan stop; and. No person shall operate a hoist unless within the preceding 12 months he has had a medical examination by a qualified, licensed physician who shall certify his fitness to perform this duty. Atmospheric monitoring systems (I-A, II-A, and V-A mines). Choosing an item from (a) Operators of mines which have experienced a rock burst shall. 811)). Blacksmith shops located on the surface shall be. 57.19101 Stopblocks and derail switches. Tests for methane shall be made at electric auxiliary fans before they are started. (a) Flammable liquids shall not be stored underground, except, (1) Small quantities stored in tightly closed cabinets away from any heat source. (b) A respirator program consistent with the requirements of ANSI Z88.21969, published by the American National Standards Institute and entitled American National Standards Practices for Respiratory Protection ANSI Z88.21969, approved August 11, 1969, which is hereby incorporated by reference and made a part hereof.
PDF Tribunal Arbitral du Sport Court of Arbitration for Sport 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. (c) The task or series of tasks is completed. (b) Category or subcategory placement or change in placement shall include consideration of the following: (1) The history and geology of the mine or of the geological area in which the mine is located; (3) The character, amount, duration, origin, and nature of methane emission and the presence of explosive dust and inert gases; and. If inconsistent with the general definitions in this section, the definition in the subpart will apply in that subpart: Abandoned areas means areas in which work has been completed, no further work is planned, and travel is not permitted. (2) Fifteen percent of the total number of wires within any strand. Scaling and SupportSurface and Underground. 57.22224 Auxiliary equipment stations (I-A and III mines). Travelway means a passage, walk or way regularly used and designated for persons to go from one place to another. (c) At permanent storage areas for combustible liquids, means shall be provided for confinement or removal of the contents of the largest storage tank in the event of tank rupture. Personnel Hoisting: 56.19000 - 56.19135 56.19000: Application. Areas where health or safety hazards exist that are not immediately obvious to employees shall be barricaded, or warning signs shall be posted at all approaches. When separate finishing bits are used, they shall be distinguishable from other bits. When the final DPM exposure limit becomes effective, MSHA will publish a document in the Federal Register.]. Unless platforms or safety lines are used, persons shall not position themselves over drawholes if there is danger that broken rock or material may be withdrawn or bridged. (2) Acetylene and liquefied petroleum gases stored in containers designed for that specific purpose. (2) Isolate any combustible material with noncombustible material. Mine Safety and Health Administration, Department of Labor, Metal and Nonmetal Mine Safety and Health, https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57, Safety and Health StandardsUnderground Metal and Nonmetal Mines. Braking systems on railroad cars and locomotives shall be maintained in functional condition. Outburst means the sudden, violent release of solids and high-pressure occluded gases, including methane in a domal salt mine. (c) When using detonating cord to initiate another explosive, a connection shall be prepared with the detonating cord threaded through, attached securely to, or otherwise in contact with the explosive. (e) Vehicles used for transportation when examining the mine shall be approved by MSHA under the applicable requirements of 30 CFR parts 18 through 36. NFPA No. (b) This onsite firefighting equipment shall be, (1) Of the type, size, and quantity that can extinguish fires of any class which would occur as a result of the hazards present; and. When parked on a grade, the wheels or tracks of mobile equipment shall be either chocked or turned into a bank or rib. The complete or partial failure of explosive material to detonate as planned. 57.4660 Work in shafts, raises, or winzes and other activities involving hazard areas. (c) When defects make continued operation hazardous to persons, the defective items including self-propelled mobile equipment shall be taken out of service and placed in a designated area posted for that purpose, or a tag or other effective method of marking the defective items shall be used to prohibit further use until the defects are corrected. (b) When stored in the same magazine, blasting agents shall be separated from explosives, safety fuse, and detonating cord to prevent contamination. Detonating cord. (b) Packaged blasting agents shall be stored in a magazine or other facility which is ventilated to prevent dampness and excessive heating, weather-resistant, and locked or attended. Only competent persons necessary to test for methane may enter the mine until the methane in the mine is less than 0.5 percent. 57.19068 Orderly conduct in conveyances. (a) Any hoist or shaft repairs or related equipment repairs that might restrict or obstruct conveyance clearance; (b) Any oversize or overweight material or equipment trips that might restrict or obstruct conveyance clearance; (c) Blasting in or near the shaft that might restrict or obstruct conveyance clearance; or. 57.19073 Hoisting during shift changes. (1) Structurally sound, weather-resistant, equipped with a lid or cover, and with only nonsparking material on the inside; (2) Posted with the appropriate United States Department of Transportation placards or other appropriate warning signs that indicate the contents and are visible from each approach; (3) Located out of the blast area once loading has been completed; (4) Locked or attended when containing explosive material; and. Geological area means an area characterized by the presence of the same ore bodies, the same stratigraphic sequence of beds, or the same ore-bearing geological formation. (c) Sensing units of monitors shall be positioned at a location which provides for the most effective measurement of methane. Dumping facilities and loading pockets shall be constructed so as to minimize spillage into the shaft. Where such trolley wires and bare power conductors are less than 7 feet above the rail, they shall be guarded at all points where persons work or pass regularly beneath. The procedure for inspection, testing and maintenance required by standard 57.19120 shall be utilized at least every 30 days for hoists designated as emergency hoists in any evacuation plan. (ii) If the equipment exceeds the maximum stopping distance in the initial test run, the mine operator may request from the inspector up to four additional test runs with two runs to be conducted in each direction. These refuges must be positioned so that the employee can reach one of them within 30 minutes from the time he leaves his workplace. (c) If any monitoring performed under this section indicates that a miner's exposure to diesel particulate matter exceeds the DPM limit specified in 57.5060, the operator must promptly post notice of the corrective action being taken on the mine bulletin board, initiate corrective action by the next work shift, and promptly complete such corrective action. A safe means of passage around open shaft compartments shall be provided on landings with more than one entrance to the shaft. Actions at 0.5 percent methane (I-C mines). (a) Flammable liquids shall not be used for cleaning. Where restricted clearance creates a hazard to persons, the restricted clearance shall be conspicuously marked. (a) Manually-operated horns or other audible warning devices provided on self-propelled mobile equipment as a safety device shall be maintained in a functional condition. 57.22105 Smoking and open flames (IV mines). (c) Bearing plates shall be used with fixtures when necessary for effective ground support. (2) The reasons for placement or change in placement; (4) The applicable standards and a time schedule for the mine operator to achieve compliance; (5) Whether or not conditions encountered during primary or access development are transient or permanent; and. All headframes shall be constructed with suitable design considerations to allow for all dead loads, live loads, and wind loads. First aid training shall be made available to all interested miners. Prior to coupling or uncoupling cars manually, trains shall be brought to a complete stop, and then moved at minimum tram speed until the coupling or uncoupling activity is completed. 57.19062 Maximum acceleration and deceleration. Misfire. Safe means of access shall be provided and maintained to all working places. Reverse-current protection means a method or device used on direct-current circuits or equipment to prevent the flow of current in a reverse direction. When PCM results indicate a potential exposure exceeding the 0.1 f/cc full-shift limit or the 1 f/cc excursion limit, samples shall be further analyzed using transmission electron microscopy according to NIOSH Method 7402 or a method at least equivalent to that method. Roll-over protective structures (ROPS) and seat belts for surface equipment. The requirements of this standard apply to surface areas only. (3) The materials must be rigged by a qualified rigger. 29, 2002. Separation shall be sufficient to prevent the occurrence or minimize the spread of fire. 57.5060 Limit on exposure to diesel particulate matter. Fire extinguishers or manual actuators for the suppression system shall be located to permit their use by persons whose escape could be impeded by fire. (a) When explosive materials or initiating systems are brought to the blast site, the blast site shall be attended; barricaded and posted with warning signs, such as Danger, Explosives, or Keep Out; or flagged against unauthorized entry. Portable rigid ladders shall be provided with suitable bases and placed securely when used. Oil recovery drill holes that penetrate oil bearing formations shall have devices to control the release of liquid hydrocarbons and hazardous gases during the drilling process. The purpose of these standards is the protection of life, the promotion of health and safety, and the prevention of accidents. This independent ventilation system shall convert, without contamination, to an approved and properly maintained 2-hour self-contained breathing apparatus to provide a safe means of escape for the hoist operator after the hoisting duties have been completed as prescribed in the mine escape and evacuation plan for that hoist. These records, if retained by the operator, shall be open for inspection by the Secretary of Labor, his authorized representative, and authorized representatives of the official mine inspection agency of the State in which the mine is located. 57.6900 Damaged or deteriorated explosive material. Hoists shall have rated capacities consistent with the loads handled and the recommended safety factors of the ropes used. (2) At least once every twelve months, maintenance checks shall be made of mechanical parts, the amount and condition of extinguishing agent and expellant, and the condition of the hose, nozzle, and vessel to determine that the fire extinguishers will operate effectively. Persons shall not be on a mast while the drill-bit is in operation unless they are provided with a safe platform from which to work and they are required to use safety belts to avoid falling. The ramps and dumping facilities shall provide width, clearance, and headroom to safely accommodate the mobile equipment using the facilities. The written examination is 30 questions pertaining to State laws/regulations and arc flash. While the request for category or subcategory reassignment is pending, the mine shall continue to operate under the standards for the category or subcategory to which originally assigned. 57.20031 Blasting underground in hazardous areas. (3) Fire extinguishers shall be hydrostatically tested according to Table C1 or a schedule based on the manufacturer's specifications to determine the integrity of extinguishing agent vessels. (a) On the surface, no unburied flammable or combustible liquids or flammable gases shall be stored within 100 feet of the following: (1) Mine openings or structures attached to mine openings. (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. Berm means a pile or mound of material along an elevated roadway capable of moderating or limiting the force of a vehicle in order to impede the vehicle's passage over the bank of the roadway. Sec. 57.12081 Bonding metal pipelines to ground return circuits. (c) Provisions shall be made for control or containment of the entire volume of the fuel line so that leakage will not create a fire hazard. Main fan. (2) The mine operator must retain for five years (from the date of sampling), the results of any samples the operator collected as a result of monitoring under this section, and information about the sampling method used for obtaining the samples. (b) Tests for methane shall be made at auxiliary fans before they are started. (6) Type and amount of explosive material. Design feature means either the manufacturer's original design or a design approved by a registered professional engineer. Safety can. Flanges on drums shall extend radially a minimum of 4 inches or three rope diameters beyond the last wrap, whichever is the lesser. (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. (a) Diesel fuel used to power equipment in underground areas must not have a sulfur content greater than 0.05 percent. Ground wires for lighting circuits powered from trolley wires shall be connected securely to the ground return circuit. Background and more details are available in the 57.12039 Protection of surplus trailing cables. Regulation Y Detailed instructions for filing Form 5000-41, Health Activity Certification or Hoisting Engineers Qualification Request Form are available in HTML or PDF. In shafts inclined over 45 degrees, the operator shall determine and post in the conveyance or at each shaft station the maximum number of persons permitted to ride in a hoisting conveyance at any one time.