PART 77--MANDATORY SAFETY STANDARDS, SURFACE COAL MINES AND SURFACE WORK AREAS OF UNDERGROUND COAL MINES
Section
77.1 Scope.
77.2 Definitions.
Subpart B--Qualified and Certified Persons
77.100 Certified person.
77.101 Tests for methane and for oxygen deficiency; qualified person.
77.102 Tests for methane; oxygen deficiency; qualified person, additional requirement.
77.103 Electrical work; qualified person.
77.104 Repair of energized surface high voltage lines; qualified person.
77.105 Qualified hoistman; slope or shaft sinking operation; qualifications.
77.106 Records of certified and qualified persons.
77.107 Training programs.
77.107-1 Plans for training programs.
77.200 Surface installations; general.
77.201 Methane content in surface installations.
77.201-1 Tests for methane; qualified person; use of approved device.
77.201-2 Methane accumulations; change in ventilation.
77.202 Dust accumulations in surface installations.
77.203 Use of material or equipment overhead; safeguards.
77.204 Openings in surface installations; safeguards.
77.205 Travelways at surface installations.
77.206 Ladders; construction; installation and maintenance.
77.207 Illumination.
77.208 Storage of materials.
77.209 Surge and storage piles.
77.210 Hoisting of materials.
77.211 Draw-off tunnels; stockpiling and reclaiming operations; general.
77.211-1 Continuous methane monitoring device; installation and operation; automatic deenergization of electric equipment.
77.212 Draw-off tunnel ventilation fans; installation.
77.213 Draw-off tunnel escapeways.
77.214 Refuse piles; general.
77.215 Refuse piles, construction requirements.
77.215-1 Refuse piles; identification.
77.215-2 Refuse piles; reporting requirements.
77.215-3 Refuse piles; certification.
77.215-4 Refuse piles; abandonment.
77.216 Water, sediment, or slurry impoundments and impounding structures; general.
77.216-1 Water, sediment or slurry impoundments and impounding structures; identification.
77.216-2 Water, sediment, or slurry impoundments and impounding structures; minimum plan requirements; changes or modifications; certification.
77.216-3 Water, sediment, or slurry impoundments and impounding structures; inspection requirements; correction of hazards; program requirements.
77.216-4 Water, sediment or slurry impoundments and impounding structures; reporting requirements; certification.
77.216-5 Water, sediment or slurry impoundments and impounding structures; abandonment.
77.217 Definitions.
77.300 Thermal dryers; general.
77.301 Dryer heating units; operation.
77.302 Bypass stacks.
77.303 Hot gas inlet chamber dropout doors.
77.304 Explosion release vents.
77.305 Access to drying chambers, hot gas inlet chambers and ductwork; installation and maintenance.
77.306 Fire protection.
77.307 Thermal dryers; location and installation; general.
77.308 Structures housing other facilities; use of partitions.
77.309 Visual check of system equipment.
77.309-1 Control stations; location.
77.310 Control panels.
77.311 Alarm devices.
77.312 Fail safe monitoring systems.
77.313 Wet-coal feedbins; low-level indicators.
77.314 Automatic temperature control instruments.
77.315 Thermal dryers; examination and inspection.
Subpart E--Safeguards for Mechanical Equipment
77.400 Mechanical equipment guards.
77.401 Stationary grinding machines; protective devices.
77.402 Hand-held power tools; safety devices.
77.403 Mobile equipment; falling object protective structures (FOPS).
77.403-1 Mobile equipment; rollover protective structures (ROPS).
77.403-2 Incorporation by reference.
77.404 Machinery and equipment; operation and maintenance.
77.405 Performing work from a raised position; safeguards.
77.406 Drive belts.
77.407 Power driven pulleys.
77.408 Welding operations.
77.409 Shovels, draglines, and tractors.
77.410 Mobile equipment; automatic warning devices.
77.411 Compressed air and boilers; general.
77.412 Compressed air systems.
77.413 Boilers.
Subpart F--Electrical Equipment--General
77.500 Electric power circuits and electric equipment deenergization.
77.501 Electric distribution circuits and equipment; repair.
77.501-1 Qualified person.
77.502 Electric equipment; examination, testing, and maintenance.
77.502-1 Qualified person.
77.502-2 Electric equipment; frequency of examination and testing.
77.503 Electric conductors; capacity and insulation.
77.503-1 Electric conductors.
77.504 Electrical connections or splices; suitability.
77.505 Cable fittings; suitability.
77.506 Electric equipment and circuits; overload and short-circuit protection.
77.506-1 Electric equipment and circuits; overload and short circuit protection; minimum requirements.
77.507 Electric equipment; switches.
77.508 Lightning arresters; ungrounded and exposed power conductors and telephone wires.
77.508-1 Lightning arresters; wires entering buildings.
77.509 Transformers; installation and guarding.
77.510 Resistors; location and guarding.
77.511 Danger signs at electrical installations.
77.512 Inspection and cover plates.
77.513 Insulating mats at power switches.
77.514 Switchboard; passageways and clearance.
77.515 Bare signal or control wires; voltage.
77.516 Electric wiring and equipment; installation and maintenance.
77.600 Trailing cables; short-circuit protection; disconnecting devices.
77.601 Trailing cables or portable cables, temporary splices.
77.602 Permanent splicing of trailing cables.
77.603 Clamping of trailing cables to equipment.
77.604 Protection of trailing cables.
77.605 Breaking trailing cable and power cable connections.
77.606 Energized trailing cables; handling.
77.606-1 Rubber gloves; minimum requirements.
77.700 Grounding metallic sheaths, armors, and conduits enclosing power conductors.
77.700-1 Approved methods of grounding.
77.701 Grounding metallic frames, casings, and other enclosures of electric equipment.
77.701-1 Approved methods of grounding of equipment receiving power from ungrounded alternating current power systems.
77.701-2 Approved methods of grounding metallic frames, casings and other enclosures of electric equipment receiving power from a direct-current power system.
77.701-3 Grounding wires; capacity.
77.701-4 Use of grounding connectors.
77.702 Protection other than grounding.
77.703 Grounding frames of stationary high-voltage equipment receiving power from ungrounded delta systems.
77.703-1 Approved methods of grounding.
77.704 Work on high-voltage lines; deenergizing and grounding.
77.704-1 Work on high-voltage lines.
77.704-2 Repairs to energized high-voltage lines.
77.704-3 Work on energized high-voltage surface lines; reporting.
77.704-4 Simultaneous repairs.
77.704-5 Installation of protective equipment.
77.704-6 Protective clothing; use and inspection.
77.704-7 Protective equipment; inspection.
77.704-8 Protective equipment; testing and storage.
77.704-9 Operating disconnecting or cutout switches.
77.704-10 Tying into energized high-voltage surface circuits.
77.704-11 Use of grounded messenger wires; ungrounded systems.
77.705 Guy wires; grounding.
Subpart I--Surface High-Voltage Distribution
77.800 High-voltage circuits; circuit breakers.
77.800-1 Testing, examination, and maintenance of circuit breakers; procedures.
77.800-2 Testing, examination, and maintenance of circuit breakers; record.
77.801 Grounding resistors.
77.801-1 Grounding resistors; continuous current rating.
77.802 Protection of high-voltage circuits; neutral grounding resistors; disconnecting devices.
77.803 Fail safe ground check circuits on high-voltage resistance grounded systems.
77.803-1 Fail safe ground check circuits; maximum voltage.
77.803-2 Ground check systems not employing pilot check wires; approval by the Secretary.
77.804 High-voltage trailing cables; minimum design requirements.
77.805 Cable couplers and connection boxes; minimum design requirements.
77.806 Connection of single-phase loads.
77.807 Installation of high-voltage transmission cables.
77.807-1 High-voltage powerlines; clearances above ground.
77.807-2 Booms and masts; minimum distance from high-voltage lines.
77.807-3 Movement of equipment; minimum distance from high-voltage lines.
77.808 Disconnecting devices.
77.809 Identification of circuit breakers and disconnecting switches.
77.810 High-voltage equipment; grounding.
77.811 Movement of portable substations and transformers.
Subpart J--Low- and Medium-Voltage Alternating Current Circuits
77.900 Low- and medium-voltage circuits serving portable or mobile three-phase alternating current equipment; circuit breakers.
77.900-1 Testing, examination, and maintenance of circuit breakers; procedures.
77.900-2 Testing, examination, and maintenance of circuit breakers; record.
77.901 Protection of low- and medium-voltage three-phase circuits.
77.901-1 Grounding resistor; continuous current rating.
77.902 Low- and medium-voltage ground check monitor circuits.
77.902-1 Fail safe ground check circuits; maximum voltage.
77.902-2 Approved ground check systems not employing pilot check wires.
77.902-3 Attachment of ground conductors and ground check wires to equipment frames; use of separate connections.
77.903 Disconnecting devices.
77.904 Identification of circuit breakers.
77.905 Connection of single-phase loads.
77.906 Trailing cables supplying power to low-voltage mobile equipment; ground wires and ground check wires.
77.1000 Highwalls, pits, and spoil banks; plans.
77.1000-1 Filing of plan.
77.1001 Stripping; loose material.
77.1002 Box cuts; spoil material placement.
77.1003 Benches.
77.1004 Ground control; inspection and maintenance; general.
77.1005 Scaling highwalls; general.
77.1006 Highwalls; men working.
77.1007 Drilling; general.
77.1008 Relocation of drills; safeguards.
77.1009 Drill; operation.
77.1010 Collaring holes.
77.1011 Drill holes; guarding.
77.1012 Jackhammers; operation; safeguards.
77.1013 Air drills; safeguards.
77.1100 Fire protection; training and organization.
77.1101 Escape and evacuation; plan.
77.1102 Warning signs; smoking and open flame.
77.1103 Flammable liquids; storage.
77.1104 Accumulations of combustible materials.
77.1105 Internal combustion engines; fueling.
77.1106 Battery charging stations; ventilation.
77.1107 Belt conveyors.
77.1108 Firefighting equipment; requirements; general.
77.1108-1 Type and capacity of firefighting equipment.
77.1109 Quantity and location of firefighting equipment.
77.1110 Examination and maintenance of firefighting equipment.
77.1111 Welding, cutting, soldering; use of fire extinguisher.
77.1112 Welding, cutting, soldering with arc or flame; safeguards.
77.1200 Mine map.
77.1201 Certification of mine maps.
77.1202 Availability of mine map.
77.1300 Explosives and blasting.
77.1301 Explosives; magazines.
77.1302 Vehicles used to transport explosives.
77.1303 Explosives; handling and use.
77.1304 Blasting agents; special provisions.
77.1400 Personnel hoists and elevators.
77.1401 Automatic controls and brakes.
77.1402 Rated capacity.
77.1402-1 Maximum load; posting.
77.1403 Daily examination of hoisting equipment.
77.1404 Certifications and records of daily examinations.
77.1405 Operation of hoisting equipment after repairs.
WIRE ROPES
77.1430 Wire ropes; scope.
77.1431 Minimum rope strength.
77.1432 Initial measurement.
77.1433 Examinations.
77.1434 Retirement criteria.
77.1435 Load end attachments.
77.1436 Drum end attachment.
77.1437 End attachment retermination.
77.1438 End attachment replacement.
77.1500 Auger mining; planning.
77.1501 Auger mining; inspections.
77.1502 Auger holes; restriction against entering.
77.1503 Augering equipment; overhead protection.
77.1504 Auger equipment; operation.
77.1505 Auger holes; blocking.
77.1600 Loading and haulage; general.
77.1601 Transportation of persons; restrictions.
77.1602 Use of aerial tramways to transport persons.
77.1603 Trains and locomotives; authorized persons.
77.1604 Transportation of persons; overcrowding.
77.1605 Loading and haulage equipment; installations.
77.1606 Loading and haulage equipment; inspection and maintenance.
77.1607 Loading and haulage equipment; operation.
77.1608 Dumping facilities.
77.1700 Communications in work areas.
77.1701 Emergency communications; requirements.
77.1702 Arrangements for emergency medical assistance and transportation for injured persons; reporting requirements; posting requirements.
77.1703 First-Aid training; supervisory employees.
77.1704 First aid training program; availability of instruction to all miners.
77.1705 First aid training program; retraining of supervisory employees; availability to all miners.
77.1706 First aid training program; minimum requirements.
77.1707 First aid equipment; location; minimum requirements.
77.1708 Safety program, instruction of persons employed at the mine.
77.1710 Protective clothing; requirements.
77.1710-1 Distinctively colored hard hats or hard caps; identification for newly employed, inexperienced miners.
77.1711 Smoking prohibition.
77.1712 Reopening mines; notification; inspection prior to mining.
77.1713 Daily inspection of surface coal mine; certified person; reports of inspection.
Subpart S--Trolley Wires and Trolley Feeder Wires
77.1800 Cutout switches.
77.1801 Overcurrent protection.
77.1801-1 Devices for overcurrent protection.
77.1802 Insulation of trolley wires, trolley feeder wires and bare signal wires; guarding of trolley wires and trolley feeder wires.
77.1900 Slopes and shafts; approval of plans.
77.1900-1 Compliance with approved slope and shaft sinking plans.
77.1901 Preshift and onshift inspections; reports.
77.1901-1 Methane and oxygen deficiency tests; approved devices.
77.1902 Drilling and mucking operations.
77.1902-1 Permissible diesel-powered equipment.
77.1903 Hoists and hoisting; minimum requirements.
77.1904 Communications between slope and shaft bottoms and hoist operators.
77.1905 Hoist safeguards; general.
77.1906 Hoists; daily inspection.
77.1907 Hoist construction; general.
77.1908 Hoist installations; use.
77.1908-1 Hoist operation; qualified hoistman.
77.1909 Explosives and blasting; use of permissible explosives and shot-firing units.
77.1909-1 Use of nonpermissible explosives and nonpermissible shot-firing units; approval by Health and Safety District Manager.
77.1910 Explosives and blasting; general.
77.1911 Ventilation of slopes and shafts.
77.1912 Ladders and stairways.
77.1913 Fire-resistant wood.
77.1914 Electrical equipment.
77.1915 Storage and handling of combustible materials.
77.1916 Welding, cutting, and soldering; fire protection.
Subpart U--Approved Books and Records [Reserved]
AUTHORITY: 30 U.S.C. 811 , 957 , and 961 .
SOURCE: 36 FR 9364, May 22, 1971, unless otherwise noted.