reglab/statecodes huggingface dataset:
Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 4 - UNDERGROUND COAL MINES › Subpart N - Explosive and Blasting › Section 75.1321 - Permit for firing more than 20 borehole and for use of nonpermissible blasting units

Current through July 13, 2024
(a) Applications
				  for permits for firing more than 20 boreholes in a round and for the use of
				  nonpermissible blasting units shall be submitted in writing to the District
				  Manager for the district in which the mine is located and shall contain the
				  following information:
(1) The name and
				  address of the mine;
(2) The active
				  workings in the mine affected by the permit and the approximate number of
				  boreholes to be fired;
(3) The
				  period of time during which the permit will apply;
(4) The nature of the development or
				  construction for which they will be used, e.g., overcasts, undercasts, track
				  grading, roof brushing or boom holes;
(5) A plan, proposed by the operator designed
				  to protect miners in the mine from the hazards of methane and other explosive
				  gases during each multiple shot, e.g., changes in the mine ventilation system,
				  provisions for auxiliary ventilation and any other safeguards necessary to
				  minimize such hazards;
(6) A
				  statement of the specific hazards anticipated by the operator in blasting for
				  overcasts, undercasts, track grading, brushing of roof, boom holes or other
				  unusual blasting situations such as coalbeds of abnormal thickness;
				  and
(7) The method to be employed
				  to avoid the dangers anticipated during development or construction which will
				  ensure the protection of life and the prevention of injuries to the miners
				  exposed to such underground blasting.
Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 4 - UNDERGROUND COAL MINES › Subpart N - Explosive and Blasting › Section 75.1322 - Stemming boreholes

Current through July 13, 2024
(a) Only
				  noncombustible material shall be used for stemming boreholes.
(b) Stemming materials other than water
				  stemming bags shall be tamped to fill the entire cross sectional area of the
				  borehole.
(c) Stemming material
				  shall contact the explosive cartridge nearest the collar of the
				  borehole.
(d) Each borehole 4 or
				  more feet deep shall be stemmed for at least 24 inches.
(e) Each borehole less than 4 feet deep shall
				  be stemmed for at least half the depth of the borehole.
(f) When blasting off the solid in bituminous
				  and lignite mines, only pliable clay dummies shall be used for
				  stemming.
(g) The diameter of a
				  water stemming bag shall be within 1/4 of an inch of the diameter of the drill
				  bit used to drill the borehole.
(h)
				  Water stemming bags shall be constructed of tear-resistant and flame-resistant
				  material and be capable of withstanding a 3-foot drop when filled without
				  rupturing or developing leaks.
Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 4 - UNDERGROUND COAL MINES › Subpart N - Explosive and Blasting › Section 75.1323 - Blasting circuits

Current through July 13, 2024
(a) Blasting
				  circuits shall be protected from sources of stray electric current.
(b) Detonators made by different
				  manufacturers shall not be combined in the same blasting circuit.
(c) Detonator leg wires shall be shunted
				  until connected into the blasting circuit.
(d) Blasting cables shall be--
(1) Well insulated, copper wire of a diameter
				  not smaller than 18-gauge; and
(2)
				  Long enough to permit the round to be fired from a safe location that is around
				  at least one corner from the blasting area.
Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 4 - UNDERGROUND COAL MINES › Subpart N - Explosive and Blasting › Section 75.1324 - Methane concentration and tests

Current through July 13, 2024
(a) No shot shall
				  be fired in an area that contains 1.0 volume percent or more of
				  methane.
(b) Immediately before
				  shots are fired, the methane concentration in a working place or any other area
				  where blasting is to be performed, shall be determined by a person qualified to
				  test for methane.
Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 4 - UNDERGROUND COAL MINES › Subpart N - Explosive and Blasting › Section 75.1325 - Firing procedures

Current through July 13, 2024
(a) Shots shall be
				  fired by a qualified person or a person working in the presence of and under
				  the direction of a qualified person.
(b) Only one face in a working place shall be
				  blasted at a time, except that when blasting cut coal up to three faces may be
				  blasted in a round if each face has a separate kerf and no more than a total of
				  20 shots connected in a single series are fired in the round. A permit to fire
				  more than 20 boreholes in a round under the provisions of
				  30 CFR
				  75.1320 and 75.1321 may not be obtained for
				  use when blasting multiple faces.
(c) Before blasting--
(1) All persons shall leave the blasting area
				  and each immediately adjacent working place where a hazard would be created by
				  the blast, to an area that is around at least one corner from the blasting
				  area;
(2) The qualified person
				  shall ascertain that all persons are a safe distance from the blasting area;
				  and
(3) A warning shall be given
				  and adequate time allowed for persons to respond.
Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 4 - UNDERGROUND COAL MINES › Subpart N - Explosive and Blasting › Section 75.1326 - Examination after blasting

Current through July 13, 2024
(a) After blasting,
				  the blasting area shall not be entered until it is clear of smoke and
				  dust.
(b) Immediately after the
				  blasting area has cleared, a qualified person or a person working in the
				  presence of and under the direction of a qualified person, shall examine the
				  area for misfires, methane and other hazardous conditions.
(c) If a round has partially detonated, the
				  qualified person shall immediately leave the area and no person shall reenter
				  the affected area for at least 5 minutes.
Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 4 - UNDERGROUND COAL MINES › Subpart N - Explosive and Blasting › Section 75.1327 - Misfires

Current through July 13, 2024
(a) When misfires occur, only work by a
				  qualified person to dispose of misfires and other work necessary to protect
				  persons shall be done in the affected area.
(b) When a misfire cannot be disposed of--
(1) A qualified person shall post each
				  accessible entrance to the area affected by the hazard of the misfire with a
				  warning at a conspicuous location to prohibit entry; and
(2) The misfire shall be immediately reported
				  to mine management.
Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 4 - UNDERGROUND COAL MINES › Subpart N - Explosive and Blasting › Section 75.1328 - Damaged or deteriorated explosive and detonators

Current through July 13, 2024
(a)
				  Damaged explosives or detonators shall be--
(1) Placed in separate containers constructed
				  of nonconductive and nonsparking materials; and
(2) Removed from the mine or placed in a
				  magazine and removed when the magazine is resup-plied.
Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 4 - UNDERGROUND COAL MINES › Subpart O - Hoisting and Mantrips › Section 75.1400 - Hoisting equipment; general

Current through July 13, 2024
(a) Every hoist
				  used to transport persons shall be equipped with overspeed, overwind, and
				  automatic stop controls.
(b) Every
				  hoist handling a platform, cage, or other device used to transport persons
				  shall be equipped with brakes capable of stopping the fully loaded platform,
				  cage, or other device.
(c) Cages,
				  platforms, or other devices used to transport persons in shafts and slopes
				  shall be equipped with safety catches or other no less effective devices
				  approved by the Secretary that act quickly and effectively in an emergency.
				  Such catches or devices shall be tested at least once every two
				  months.
(d) Hoisting equipment,
				  including automatic elevators, used to transport persons shall be examined
				  daily.
(e) Where persons are
				  transported into or out of a mine by a hoist, a qualified hoisting engineer
				  shall be on duty while any person is underground. No such engineer, however,
				  shall be required for automatically operated cages, platforms, or
				  elevators.
Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 4 - UNDERGROUND COAL MINES › Subpart O - Hoisting and Mantrips › Section 75.1400-1 - Hoists; brakes, capability

Current through July 13, 2024
Brakes on hoists used to transport persons shall be capable
					 of stopping and holding the fully loaded platform, cage, or other device at any
					 point in the shaft, slope, or incline.
Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 4 - UNDERGROUND COAL MINES › Subpart O - Hoisting and Mantrips › Section 75.1400-2 - Hoists; test of safety catches; records

Current through July 13, 2024
A record shall be made in a book of the tests, required by
					 S 75.1400, of the safety catches or other devices approved by the Secretary.
					 Each entry shall be signed by the person making the tests and countersigned by
					 a responsible official.
Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 4 - UNDERGROUND COAL MINES › Subpart O - Hoisting and Mantrips › Section 75.1400-3 - Daily examination of hoisting equipment

Current through July 13, 2024
Hoists and elevators shall be examined daily and such
					 examinations shall include, but not be limited to, the following:
(a) Elevators. A visual examination of the
				  rope for wear, broken wires, and corrosion, especially at excessive strain
				  points such as near the attachments and where the rope rests on sheaves;
(b) Hoists and elevators.
(1) An examination of the rope fastenings for
				  defects;
(2) An examination of
				  safety catches;
(3) An examination
				  of the cages, platforms, elevators, or other devices for loose, missing or
				  defective parts;
(4) An examination
				  of the head sheaves to check for broken flanges, defective bearings, rope
				  alignment, and proper lubrication; and
(5) An observation of the lining and all
				  other equipment and appurtenances installed in the shaft.
Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 4 - UNDERGROUND COAL MINES › Subpart O - Hoisting and Mantrips › Section 75.1400-4 - Certification and record of daily examinations

Current through July 13, 2024
At the completion of each daily examination required by S
					 75.1400, the person making the examination shall certify, by signature and
					 date, that the examination has been made. If any unsafe condition is found
					 during the examinations required by S 75.1400-3, the person conducting the
					 examination shall make a record of the condition and the date. Certifications
					 and records shall be retained for one year.
Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 4 - UNDERGROUND COAL MINES › Subpart O - Hoisting and Mantrips › Section 75.1401 - Hoists; rated capacities; indicators

Current through July 13, 2024
Hoists shall have rated capacities consistent with the
					 loads handled. An accurate and reliable indicator of the position of the cage,
					 platform, skip, bucket, or cars shall be provided.
Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 4 - UNDERGROUND COAL MINES › Subpart O - Hoisting and Mantrips › Section 75.1401-1 - Hoists; indicators

Current through July 13, 2024
The indicator required by S 75.1401 of this subpart shall
					 be placed so that it is in clear view of the hoisting engineer and shall be
					 checked daily to determine its accuracy.
Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 4 - UNDERGROUND COAL MINES › Subpart O - Hoisting and Mantrips › Section 75.1402 - Communication between shaft station and hoist room

Current through July 13, 2024
[Statutory Provisions]
There shall be at least two effective methods approved by
					 the Secretary of signaling between each of the shaft stations and the hoist
					 room, one of which shall be a telephone or speaking tube.
Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 4 - UNDERGROUND COAL MINES › Subpart O - Hoisting and Mantrips › Section 75.1402-1 - Communication between shaft station and hoist room

Current through July 13, 2024
One of the methods used to communicate between shaft
					 stations and the hoist room shall give signals which can be heard by the
					 hoisting engineer at all times while men are underground.
Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 4 - UNDERGROUND COAL MINES › Subpart O - Hoisting and Mantrips › Section 75.1402-2 - Test of signaling systems

Current through July 13, 2024
Signaling systems used for communication between shaft
					 stations and the hoist room shall be tested daily.
Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 4 - UNDERGROUND COAL MINES › Subpart O - Hoisting and Mantrips › Section 75.1403 - Other safeguards

Current through July 13, 2024
[Statutory Provisions]
Other safeguards adequate, in the judgment of an authorized
					 representative of the Secretary, to minimize hazards with respect to
					 transportation of men and materials shall be provided.
Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 4 - UNDERGROUND COAL MINES › Subpart O - Hoisting and Mantrips › Section 75.1403-1 - General criteria

Current through July 13, 2024
(a) Sections
				  75.1403
				  - 2 through
				  75.1403
				  - 11 set out the criteria by which an authorized representative of the
				  Secretary will be guided in requiring other safeguards on a mine-by-mine basis
				  under S 75.1403. Other safeguards may be required.
(b) The authorized representative of the
				  Secretary shall in writing advise the operator of a specific safeguard which is
				  required pursuant to S 75.1403 and shall fix a time in which the operator shall
				  provide and thereafter maintain such safeguard. If the safeguard is not
				  provided within the time fixed and if it is not maintained thereafter, a notice
				  shall be issued to the operator pursuant to section 104 of the Act.
(c) Nothing in the sections in the S 75.1403
				  series in this subpart O precludes the issuance of a withdrawal order because
				  of imminent danger.
Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 4 - UNDERGROUND COAL MINES › Subpart O - Hoisting and Mantrips › Section 75.1403-2 - Criteria-Hoist transporting materials; brakes

Current through July 13, 2024
Hoists and elevators used to transport materials should be
					 equipped with brakes capable of stopping and holding the fully loaded platform,
					 cage, skip, car, or other device at any point in the shaft, slope, or
					 incline.
Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 4 - UNDERGROUND COAL MINES › Subpart O - Hoisting and Mantrips › Section 75.1403-3 - Criteria-Drum clutch; cage construction

Current through July 13, 2024
(a) The clutch of a
				  free-drum on a personnel hoist should be provided with a locking mechanism or
				  interlocked with the brake to prevent accidental withdrawal of the
				  clutch.
(b) Cages used for hoisting
				  persons should be constructed with the sides enclosed to a height of at least
				  six feet and should have gates, safety chains, or bars across the ends of the
				  cage when persons are being hoisted or lowered.
(c) Self-dumping cages, platforms, or other
				  devices used for transportation of persons should have a locking device to
				  prevent tilting when persons are transported.
(d) An attendant should be on duty at the
				  surface when persons are being hoisted or lowered at the beginning and end of
				  each shift.
(e) Precautions should
				  be taken to protect persons working in shaft sumps.
(f) Workers should wear safety belts while
				  doing work in or over shafts.
Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 4 - UNDERGROUND COAL MINES › Subpart O - Hoisting and Mantrips › Section 75.1403-4 - Criteria-Automatic elevators

Current through July 13, 2024
(a) The doors of
				  automatic elevators should be equipped with interlocking switches so arranged
				  that the elevator car will be immovable while any door is opened or unlocked,
				  and arranged so that such door or doors cannot be inadvertently opened when the
				  elevator car is not at a landing.
(b) A "Stop" switch should be provided in the
				  automatic elevator compartment that will permit the elevator to be stopped at
				  any location in the shaft.
(c) A
				  slack cable device should be used where appropriate on automatic elevators
				  which will automatically shut-off the power and apply the brakes in the event
				  the elevator is obstructed while descending.
(d) Each automatic elevator should be
				  provided with a telephone or other effective communication system by which aid
				  or assistance can be obtained promptly.
Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 4 - UNDERGROUND COAL MINES › Subpart O - Hoisting and Mantrips › Section 75.1403-5 - Criteria-Belt conveyors

Current through July 13, 2024
(a) Positive-acting
				  stop controls should be installed along all belt conveyors used to transport
				  men, and such controls should be readily accessible and maintained so that the
				  belt can be stopped or started at any location.
(b) Belt conveyors used for regularly
				  scheduled mantrips should be stopped while men are loading or
				  unloading.
(c) All belt conveyors
				  used for the transportation of persons should have a minimum vertical clearance
				  of 18 inches from the nearest overhead projection when measured from the edge
				  of the belt and there should be at least 36 inches of side clearance where men
				  board or leave such belt conveyors.
(d) When men are being transported on
				  regularly scheduled mantrips on belt conveyors the belt speed should not exceed
				  300 feet per minute when the vertical clearance is less than 24 inches, and
				  should not exceed 350 feet per minute when the vertical clearance is 24 inches
				  or more.
(e) Adequate illumination
				  including colored lights or reflective signs should be installed at all loading
				  and unloading stations. Such colored lights and reflective signs should be so
				  located as to be observable to all persons riding the belt conveyor.
(f) After supplies have been transported on
				  belt conveyors such belts should be examined for unsafe conditions prior to the
				  transportation of men on regularly scheduled mantrips, and belt conveyors
				  should be clear before men are transported.
(g) A clear travelway at least 24 inches wide
				  should be provided on both sides of all belt conveyors installed after March
				  30, 1970. Where roof supports are installed within 24 inches of a belt
				  conveyor, a clear travelway at least 24 inches wide should be provided on the
				  side of such support farthest from the conveyor.
(h) On belt conveyors that do not transport
				  men, stop and start controls should be installed at intervals not to exceed
				  1,000 feet. Such controls should be properly installed and positioned so as to
				  be readily accessible.
(i)
				  Telephone or other suitable communications should be provided at points where
				  men or supplies are regularly loaded on or unloaded from the belt
				  conveyors.
(j) Persons should not
				  cross moving belt conveyors, except where suitable crossing facilities are
				  provided.
Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 4 - UNDERGROUND COAL MINES › Subpart O - Hoisting and Mantrips › Section 75.1403-6 - Criteria-Self-propelled personnel carriers

Current through July 13, 2024
(a) Each
				  self-propelled personnel carrier should:
(1)
				  Be provided with an audible warning device;
(2) Be provided with a sealed-beam headlight,
				  or its equivalent, on each end;
(3)
				  Be provided with reflectors on both ends and sides.
Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 4 - UNDERGROUND COAL MINES › Subpart O - Hoisting and Mantrips › Section 75.1403-7 - Criteria-Mantrips

Current through July 13, 2024
(a) Mantrips should be operated independently
				  of any loaded trip, empty trip, or supply trip and should not be operated
				  within 300 feet of any trip, including another mantrip.
(b) A sufficient number of mantrip cars
				  should be provided to prevent overcrowding of men.
(c) Mantrips should not be pushed.
(d) Where mantrips are operated by
				  locomotives on slopes such mantrips should be coupled to the front and rear by
				  locomotives capable of holding such mantrips. Where ropes are used on slopes
				  for mantrip haulage, such conveyances should be connected by chains, steel
				  ropes, or other effective devices between mantrip cars and the rope.
(e) Safety goggles or eyeshields should be
				  provided for all persons being transported in open-type mantrips.
(f) All trips, including trailers and sleds,
				  should be operated at speeds consistent with conditions and the equipment used,
				  and should be so controlled that they can be stopped within the limits of
				  visibility.
(g) All mantrips should
				  be under the direction of a supervisor and the operator of each mantrip should
				  be familiar with the haulage safety rules and regulations.
(h) Men should proceed in an orderly manner
				  to and from mantrips and no person should be permitted to get on or off a
				  moving mantrip.
(i)
				  [Reserved]
(j) Mantrips should not
				  be permitted to proceed until the operator of the mantrip is assured that he
				  has a clear road.
(k) Supplies or
				  tools, except small hand tools or instruments, should not be transported with
				  men.
(l) At places where men enter
				  or leave mantrip conveyances, ample clearance should be provided and provisions
				  made to prevent persons from coming in contact with energized electric
				  circuits.
(m) The mine car next to
				  a trolley locomotive should not be used to transport men. Such cars may be used
				  to transport small tools and supplies. This is not to be construed as
				  permitting the transportation of large or bulky supplies such as shuttle car
				  wheel units, or similar material.
(n) Drop-bottom cars used to transport men
				  should have the bottoms secured with an additional locking device.
(o) Extraneous materials or supplies should
				  not be transported on top of equipment; however, materials and supplies that
				  are necessary for or related to the operation of such equipment may be
				  transported on top of such equipment if a hazard is not introduced.
Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 4 - UNDERGROUND COAL MINES › Subpart O - Hoisting and Mantrips › Section 75.1403-8 - Criteria-Track haulage roads

Current through July 13, 2024
(a) The speed at
				  which haulage equipment is operated should be determined by the condition of
				  the roadbed, rails, rail joints, switches, frogs, and other elements of the
				  track and the type and condition of the haulage equipment.
(b) Track haulage roads should have a
				  continuous clearance on one side of at least 24 inches from the farthest
				  projection of normal traffic. Where it is necessary to change the side on which
				  clearance is provided, 24 inches of clearance should be provided on both sides
				  for a distance of not less than 100 feet and warning signs should be posted at
				  such locations.
(c) Track haulage
				  roads developed after March 30, 1970, should have clearance on the "tight" side
				  of at least 12 inches from the farthest projection of normal traffic. A minimum
				  clearance of 6 inches should be maintained on the "tight" side of all track
				  haulage roads developed prior to March 30, 1970.
(d) The clearance space on all track haulage
				  roads should be kept free of loose rock, supplies, and other loose
				  materials.
(e) Positive stopblocks
				  or derails should be installed on all tracks near the top and at landings of
				  shafts, slopes, and surface inclines.
Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 4 - UNDERGROUND COAL MINES › Subpart O - Hoisting and Mantrips › Section 75.1403-9 - Criteria-Shelter holes

Current through July 13, 2024
(a) Shelter holes
				  should be provided on track haulage roads at intervals of not more than 105
				  feet unless otherwise approved by the Coal Mine Safety District
				  Manager(s).
(b) Shelter holes
				  should be readily accessible and should be at least 5 feet in depth, not more
				  than 4 feet in width (except crosscuts used as shelter holes) and at least the
				  height of the coal seam where the coal seam is less than 6 feet high and at
				  least 6 feet in height where the coal seam is 6 feet or more in
				  height.
(c) Shelter holes should be
				  kept free of refuse and other obstructions. Crosscuts used as shelter holes
				  should be kept free of refuse or other materials to a depth of at least 15
				  feet.
(d) Shelter holes should be
				  provided at all manually operated doors and at switch throws except:
(1) At room switches, or
(2) at switches where more than 6 feet of
				  side clearance is provided. The Coal Mine Safety District Manager(s) may permit
				  exemption of this requirement if such shelter holes create a hazardous roof
				  condition. A copy of this permit, if issued, shall be filed with the State Mine
				  Inspector.
Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 4 - UNDERGROUND COAL MINES › Subpart O - Hoisting and Mantrips › Section 75.1403-10 - Criteria-Haulage; general

Current through July 13, 2024
(a) A permissible
				  trip light or other approved device such as reflectors, approved by the Coal
				  Mine Safety District Manager(s), should be used on the rear of trips pulled, on
				  the front of trips pushed and on trips lowered in slopes. However, trip lights
				  or other approved devices need not be used on cars being shifted to and from
				  loading machines, on cars being handled at loading heads, during gathering
				  operations at working faces, when trailing locomotives are used, or on trips
				  pulled by animals.
(b) Cars on main
				  haulage roads should not be pushed, except where necessary to push cars from
				  side tracks located near the working section to the producing entries and
				  rooms, where necessary to clear switches and sidetracks, and on the approach to
				  cages, slopes, and surface inclines.
(c) Warning lights or reflective signs or
				  tapes should be installed along haulage roads at locations of abrupt or sudden
				  changes in the overhead clearance.
(d) No person, other than the motorman and
				  brakeman, should ride on a locomotive unless authorized by the mine foreman,
				  and then only when safe riding facilities are provided. No person should ride
				  on any loaded car or on the bumper of any car. However, the brakeman may ride
				  on the rear bumper of the last car of a slow moving trip pulled by a
				  locomotive.
(e) Positive-acting
				  stopblocks or derails should be used where necessary to protect persons from
				  danger of runaway haulage equipment.
(f) An audible warning should be given by the
				  operator of all self-propelled equipment including off-track equipment, where
				  persons may be endangered by the movement of the equipment.
(g) Locomotives and personnel carriers should
				  not approach to within 300 feet of preceding haulage equipment, except trailing
				  locomotives that are an integral part of the trip.
(h) A total of at least 36 inches of
				  unobstructed side clearance (both sides combined) should be provided for all
				  rubber-tired haulage equipment where such equipment is used.
(i) Off-track haulage roadways should be
				  maintained as free as practicable from bottom irregularities, debris, and wet
				  or muddy conditions that affect the control of the equipment.
(j) Operators of self-propelled equipment
				  should face in the direction of travel.
(k) Mechanical steering and control devices
				  should be maintained so as to provide positive control at all times.
(l) All self-propelled rubber-tired haulage
				  equipment should be equipped with well maintained brakes, lights, and a warning
				  device.
(m) On and after March 30,
				  1971, all tram control switches on rubber-tired equipment should be designed to
				  provide automatic return to the stop or off position when released.
Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 4 - UNDERGROUND COAL MINES › Subpart O - Hoisting and Mantrips › Section 75.1403-11 - Criteria-Entrance to shaft and slopes

Current through July 13, 2024
All open entrances to shafts should be equipped with safety
					 gates at the top and at each landing. Such gates should be self-closing and
					 should be kept closed except when the cage is at such
					 landing.
Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 4 - UNDERGROUND COAL MINES › Subpart O - Hoisting and Mantrips › Section 75.1404 - Automatic brakes; speed reduction gear

Current through July 13, 2024
[Statutory Provisions]
Each locomotive and haulage car used in an underground coal
					 mine shall be equipped with automatic brakes, where space permits. Where space
					 does not permit automatic brakes, locomotives and haulage cars shall be subject
					 to speed reduction gear, or other similar devices approved by the Secretary,
					 which are designed to stop the locomotives and haulage cars with the proper
					 margin of safety.
Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 4 - UNDERGROUND COAL MINES › Subpart O - Hoisting and Mantrips › Section 75.1404-1 - Braking system

Current through July 13, 2024
A locomotive equipped with a dual braking system will be
					 deemed to satisfy the requirements of S 75.1404 for a train comprised of such
					 locomotive and haulage cars, provided the locomotive is operated within the
					 limits of its design capabilities and at speeds consistent with the condition
					 of the haulage road. A trailing locomotive or equivalent devices should be used
					 on trains that are operated on ascending grades.
Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 4 - UNDERGROUND COAL MINES › Subpart O - Hoisting and Mantrips › Section 75.1405 - Automatic couplers

Current through July 13, 2024
[Statutory Provisions]
All haulage equipment acquired by an operator of a coal
					 mine on or after March 30, 1971, shall be equipped with automatic couplers
					 which couple by impact and uncouple without the necessity of persons going
					 between the ends of such equipment. All haulage equipment without automatic
					 couplers in use in a mine on March 30, 1970, shall also be so equipped within 4
					 years after March 30, 1970.
Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 4 - UNDERGROUND COAL MINES › Subpart O - Hoisting and Mantrips › Section 75.1405-1 - Automatic couplers, haulage equipment

Current through July 13, 2024
The requirement of S 75.1405 with respect to automatic
					 couplers applies only to track haulage cars which are regularly coupled and
					 uncoupled.
Wire Ropes
Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 4 - UNDERGROUND COAL MINES › Subpart O - Hoisting and Mantrips › Section 75.1429 - Guide ropes

Current through July 13, 2024
If guide ropes are used in shafts for personnel hoisting
					 applications other than shaft development, the nominal strength (manufacturer's
					 published catalog strength) of the guide rope at installation shall meet the
					 minimum value calculated as follows: Minimum value = Static Load X
					 5.0.
Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 4 - UNDERGROUND COAL MINES › Subpart O - Hoisting and Mantrips › Section 75.1430 - Wire ropes; scope

Current through July 13, 2024
(a) Sections
				  75.1430
				  through
				  75.1438
				  apply to wire ropes in service used to hoist--
(1) Persons in shafts or slopes underground;
				  or
(2) Loads in shaft or slope
				  development when persons work below the suspended loads.
Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 4 - UNDERGROUND COAL MINES › Subpart O - Hoisting and Mantrips › Section 75.1431 - Minimum rope strength

Current through July 13, 2024
At installation, the nominal strength (manufacturer's
					 published catalog strength) of wire ropes used for hoisting shall meet the
					 minimum rope strength values obtained by the following formulas in which "L"
					 equals the maximum suspended rope length in feet:
(a) Winding drum ropes (all constructions,
				  including rotation resistant). For rope lengths less than 3,000 feet: Minimum
				  Value = Static Load X (7.0-0.001 L) For rope lengths 3,000 feet or greater:
				  Minimum Value = Static Load X 4.0
(b) Friction drum ropes.
For rope lengths less than 4,000 feet:
Minimum Value = Static Load X (7.0-0.0005 L)
For rope lengths 4,000 feet or greater:
Minimum Value = Static Load X 5.0
(c)Tail ropes (balance ropes).
Minimum Value = Weight of Rope X 7.0
Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 4 - UNDERGROUND COAL MINES › Subpart O - Hoisting and Mantrips › Section 75.1432 - Initial measurement

Current through July 13, 2024
After initial rope stretch but before visible wear occurs,
					 the rope diameter of newly installed wire ropes shall be measured at least once
					 in every third interval of active length and the measurements averaged to
					 establish a baseline for subsequent measurements. A record of the measurements
					 and the date shall be made by the person taking the measurements. This record
					 shall be retained until the rope is retired from service.
Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 4 - UNDERGROUND COAL MINES › Subpart O - Hoisting and Mantrips › Section 75.1433 - Examinations

Current through July 13, 2024
(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. In addition, visual examination for wear and broken
				  wires shall be made at stress points, including the area near attachments,
				  where the rope rests on sheaves, where the rope leaves the drum, at drum
				  crossovers, and at change-of-layer regions. When any visible condition that
				  results in a reduction of rope strength is present, the affected portion of the
				  rope shall be examined on a daily basis.
(b) Before any person is hoisted with a newly
				  installed wire rope or any wire rope that has not been examined in the previous
				  fourteen calendar days, the wire rope shall be examined in accordance with
				  paragraph (a) of this section.
(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--
(1) Wherever wear is evident;
(2) Where the hoist rope rests on sheaves at
				  regular stopping points;
(3) Where
				  the hoist rope leaves the drum at regular stopping points; and
(4) At drum crossover and change-of-layer
				  regions.
Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 4 - UNDERGROUND COAL MINES › Subpart O - Hoisting and Mantrips › Section 75.1434 - Retirement criteria

Current through July 13, 2024
Unless damage or deterioration is removed by cutoff, wire
					 ropes shall be removed from service when any of the following conditions
					 occurs:
(a) The number of broken wires
				  within a rope lay length, excluding filler wires, exceeds either--
(1) Five percent of the total number of
				  wires; or
(2) Fifteen percent of
				  the total number of wires within any strand;
Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 4 - UNDERGROUND COAL MINES › Subpart O - Hoisting and Mantrips › Section 75.1435 - Load end attachments

Current through July 13, 2024
(a) Wire rope shall
				  be attached to the load by a method that develops at least 80 percent of the
				  nominal strength of the rope.
(b)
				  Except for terminations where use of other materials is a design feature, zinc
				  (spelter) shall be used for socketing wire ropes. Design feature means either
				  the manufacturer's original design or a design approved by a registered
				  professional engineer.
(c) Load end
				  attachment methods using splices are prohibited.
Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 4 - UNDERGROUND COAL MINES › Subpart O - Hoisting and Mantrips › Section 75.1436 - Drum end attachment

Current through July 13, 2024
(a) For drum end
				  attachment, wire rope shall be attached--
(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
(3) By properly assembled anchor bolts,
				  clamps, or wedges, provided that the attachment is a design feature of the
				  hoist drum. Design feature means either the manufacturer's original design or a
				  design approved by a registered professional engineer.
Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 4 - UNDERGROUND COAL MINES › Subpart O - Hoisting and Mantrips › Section 75.1437 - End attachment retermination

Current through July 13, 2024
Damaged or deteriorated wire rope shall be removed by
					 cutoff and the rope reterminated where there is--
(a) More than one broken wire at an
				  attachment;
(b) Improper
				  installation of an attachment;
(c)
				  Slippage at an attachment; or
(d)
				  Evidence of deterioration from corrosion at an attachment.
Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 4 - UNDERGROUND COAL MINES › Subpart P - Emergency Shelters › Section 751500 - Emergency shelters

Current through July 13, 2024
[Statutory Provisions]
The Secretary or an authorized representative of the
					 Secretary may prescribe in any coal mine that rescue chambers, properly sealed
					 and ventilated, be erected at suitable locations in the mine to which persons
					 may go in case of an emergency for protection against hazards. Such chambers
					 shall be properly equipped with first aid materials, an adequate supply of air
					 and self-contained breathing equipment, an independent communication system to
					 the surface, and proper accommodations for the persons while awaiting rescue,
					 and such other equipment as the Secretary may require. A plan for the erection,
					 maintenance, and revisions of such chambers and the training of the miners in
					 their proper use shall be submitted by the operator to the Secretary for his
					 approval. A copy of the approved plan shall be filed with the State Mine
					 Inspector.
Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 4 - UNDERGROUND COAL MINES › Subpart Q - Communications › Section 75.1600 - Communications

Current through July 13, 2024
[Statutory Provisions]
Telephone service or equivalent two-way communication
					 facilities, approved by the Secretary or his authorized representative, shall
					 be provided between the surface and each landing of main shafts and slopes and
					 between the surface and each working section of any coal mine that is more than
					 100 feet from a portal.
Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 4 - UNDERGROUND COAL MINES › Subpart Q - Communications › Section 75.1600-1 - Communication facilities; main portals; installation requirements

Current through July 13, 2024
A telephone or equivalent two-way communication facility
					 shall be located on the surface within 500 feet of all main portals, and shall
					 be installed either in a building or in a box-like structure designed to
					 protect the facilities from damage by inclement weather. At least one of these
					 communication facilities shall be at a location where a responsible person who
					 is always on duty when men are underground can hear the facility and respond
					 immediately in the event of an emergency.
Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 4 - UNDERGROUND COAL MINES › Subpart Q - Communications › Section 75.1600-2 - Communication facilities; working sections; installation and maintenance requirements; audible or visual alarms

Current through July 13, 2024
(a) Telephones or
				  equivalent two-way communication facilities provided at each working section
				  shall be located not more than 500 feet outby the last open crosscut and not
				  more than 800 feet from the farthest point of penetration of the working places
				  on such section.
(b) The incoming
				  communication signal shall activate an audible alarm, distinguishable from the
				  surrounding noise level, or a visual alarm that can be seen by a miner
				  regularly employed on the working section.
(c) If a communication system other than
				  telephones is used and its operation depends entirely upon power from the mine
				  electric system, means shall be provided to permit continued communication in
				  the event the mine electric power fails or is cut off; provided, however, that
				  where trolley phones and telephones are both used, an alternate source of power
				  for the trolley phone system is not required.
(d) Trolley phones connected to the trolley
				  wire shall be grounded in accordance with subpart H of this part.
(e) Telephones or equivalent two-way
				  communication facilities shall be maintained in good operating condition at all
				  times. In the event of any failure in the system that results in loss of
				  communication, repairs shall be started immediately, and the system restored to
				  operating condition as soon as possible.
Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 4 - UNDERGROUND COAL MINES › Subpart R - Miscellaneous › Section 75.1700 - Oil and gas wells

Current through July 13, 2024
[Statutory Provisions]
Each operator of a coal mine shall take reasonable measures
					 to locate oil and gas wells penetrating coalbeds or any underground area of a
					 coal mine. When located, such operator shall establish and maintain barriers
					 around such oil and gas wells in accordance with State laws and regulations,
					 except that such barriers shall not be less than 300 feet in diameter, unless
					 the Secretary or his authorized representative permits a lesser barrier
					 consistent with the applicable State laws and regulations where such lesser
					 barrier will be adequate to protect against hazards from such wells to the
					 miners in such mine, or unless the Secretary or his authorized representative
					 requires a greater barrier where the depth of the mine, other geologic
					 conditions, or other factors warrant such a greater barrier.
Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 4 - UNDERGROUND COAL MINES › Subpart R - Miscellaneous › Section 75.1702 - Smoking; prohibition

Current through July 13, 2024
[Statutory Provisions]
No person shall smoke, carry smoking materials, matches, or
					 lighters underground, or smoke in or around oil houses, explosives magazines,
					 or other surface areas where such practice may cause a fire or explosion. The
					 operator shall institute a program, approved by the Secretary, to insure that
					 any person entering the underground area of the mine does not carry smoking
					 materials, matches, or lighters. A copy of this approved plan shall be filed
					 with the State Mine Inspector.
Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 4 - UNDERGROUND COAL MINES › Subpart R - Miscellaneous › Section 75.1702-1 - Smoking programs

Current through July 13, 2024
Programs required under S 75.1702 shall be submitted to the
					 Coal Mine Safety District Manager for approval on or before May 30,
					 1970.
Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 4 - UNDERGROUND COAL MINES › Subpart R - Miscellaneous › Section 75.1703 - Portable electric lamps

Current through July 13, 2024
[Statutory Provisions]
Persons underground shall use only permissible electric
					 lamps approved by the Secretary for portable illumination. No open flame shall
					 be permitted in the underground area of any coal mine, except as permitted
					 under S 75.1106.
Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 4 - UNDERGROUND COAL MINES › Subpart R - Miscellaneous › Section 75.1703-1 - Permissible lamps

Current through July 13, 2024
Lamps approved by the Bureau of Mines or the Mine Safety
					 and Health Administration under part 19 or part 20 of this chapter (Bureau of
					 Mines Schedule 6D and Schedule 10C) are approved lamps for the purposes of S
					 75.1703.