1
7-2.6.
Heretofore
1
7-2.7.
Explosives
1
7-2.8.
Detonators
1
7-2.9.
Timbering
1
7-2.10.
Railing
1
7-2.11.
Approved
1
7-2.12.
Acceptable
1
7-2.13.
Potentially gassy atmosphere
1
7-2.14.
Magazines
1

7-3. GENERAL
7-3.1.
Superintendent
1
7-3.2.
Observance of Rules
1
7-3.3.
Responsibility of Employer
1
7-3.4.
Maintenance of Equipment, etc.
1
7-3.5.
Inspection & Maintenance--Excavations-
1
7-3.6.
Removal of Waste Materials
2
7-3.7.
Dust Control in Drilling Operations
2
7-3.8.
Dust Control in Blasting Mucking, and Crushing Operations
2
7-3.9.
General Ventilation
2
7-3.10.
Platforms, Stairways, etc.
2
7-3.11.
Reports on Accidents
2
7-3.12.
Attendance Record
2
7-3.13.
Employment of Minors
2
7-3.14.
Protective Clothing
2
7-3.15.
Directional Signs
2
7-3.16.
Acceptable Equipment
2
7-3.17.
Repair of Acceptable Equipment
2
7-3.18.
Air Hose
2
]
7-3.19.
Fire Fighting Equipment
2
7-3.20.
Flammable Gas
2
7-3.21.
Guarding of Moving Machinery & Equipment
3 7-3.22
Intoxicating Liquor
3

7-4 SANITATION
Toilet Closets
7-4.1.
General
3
7-4.2.
Number Required
3
7-4.3.
Location
3
7-4.4.
Construction
3
7-4.5.
Cleaning
3
7-4.6.
Maintenance
3
7-4.7.
Use
3
WASHING AND WASHING FACILITIES

7-4.8.
Drinking Water
3
7-4.9.
Washing Facilities
3

7-5 LIGHTING

7-5.1.
General
3
7-5.2.
Station Lighting
3
7-5.3.
Machinery
3
7-5.4.
Open Lights--Where Prohibited
3
7-5.5.
Open Lights--When Permitted Duty to Extinguish
3
7-5.6.
Electric Lights--Gassy Atmospheres
4
7-5.7.
Portable Lamps--Gassy Atmospheres
4
7-5.8.
Surface Lighting
4
7-5.9.
Emergency Lighting
4

7-6 VENTILATION
7-6.1.
Personnel
4
7-6.2.
Stoppage of Air Flow
4
7-6.3.
Capacity of Fan Motors
4
7-6.4.
Capacity of Fan
4
7-6.5.
Housing of Fan
4
7-6.6.
Source of Air Supply
4
7-6.7.
Piping
4
7-6.8.
Lighting Protection--Fan Circuits
4

7-7.
AID TO INJURED
7-7.1.
Stretchers, Blankets
4
7-7.2.
Supplies
4
7-7.3.
Personnel
4
7-7.4.
First-Aid Corps
4
7-7.5
Corps
Meetings
4
7-7.6.
Motor Ambulance
5
7-7.7.
Safety Goggles
5
7-8.
MINE MAPS AND PLANS
7-8.1.
Excavation Map
5
7-8.2.
Maintenance of Maps
5
7-8.3.
Inspection & Filing of Maps
5
7-8.4.
Air and Water Line Maps
5
7-8.5.
Plans of Electrical Systems
5

7-9. TELEPHONES
7-9.1.
General
5
7-9.2.
Housing
5
7-9.3.
Shaft Stations
5

7-10 EXITS
7-10.l.
Two (2) Openings to Surface
5
7-10.2.
Exemptions from Requirements of Rule 31-10.2.
5
7-10.3.
Openings Through Other Mines
6
7-10.4.
Mines Having Only One Outlet
6
7-10.5.
Entrance Structures
6
7-10.6.
Exit Doors in Mines
6
7-10.7.
Ladderways--General
6
7-10.8.
Landing Platforms--Where Required
6
7-10.9.
Platform Openings--Guarding
6
7-10.10.
Location and Direction of Inclination of Ladders
6
7-10.11. Vertical
Ladders
6
7-10.12.
Ladders in Exit Ladderways
6
7-10.13.
Width of Ladders
7
7-10.14. Ladder
Rungs
7
7-10.15. Toe
Clearances
7
7-10.16. Sinking
Shafts
7
7-10.17.
Cleaning of Manways
7

7-11. PROTECTION OF OPENINGS
7-11.1.
Disused Shafts
7
7-11.2.
Surface Openings
7
7-11.3.
Abandoned Excavations
7
7-11.4.
Sumps
7
7-11.5.
Stopes
7
7-11.6.
Drifts
7
7-11.7.
Protection at Shaft Stations
7
7-11.8.
Shaft Doors
7
7-11.9.
Entering Shafts
7
7-11.10. Winzes
7
7-11.11. Raises
7
7-11.12. Safety
Belts
7

7-12. EXPLOSIVES 7-12.1.
Storage
7
7-12.2.
Access to Explosives
7
7-12.3.
Handling-Personnel
8
7-12.4.
Smoking and Open Lights
8
7-12.5.
Marking
8
7-12.6.
Explosives for Use
8
7-12.7.
Detonators for Use
8
7-12.8.
Fuse for Use
8
7-12.9.
Operations During Electrical Storm
8
7-12.10. Destroying
Explosives
8
7-12.11. Charging
Operations
8

STORAGE AND TRANSPORTATION ABOVE GROUND
MAGAZINES ON SURFACE
7-12.12. Magazines
9
7-12.13.
Construction of Magazines
9
7-12.14.
Maintenance and Repairs
9
7-12.15
Magazines--Storage of Explosives other than Detonators
9
7-12.16.
Magazines for Detonators
9
7-12.17.
Storage of Fuse
9
7-12.18. Illumination
9
7-12.19.
Removal from Magazines
9
7-12.20. Opening
Packages
10
7-12.21. Transportation
10

STORAGE AND TRANSPORTATION UNDERGROUND
7-12.22. Supply
10
7-12.23. Magazines
10
7-12.24.
Location of Magazines
10
7-12.25.
Protection of Magazines
10
7-12.26.
Separation of Magazines
10
7-12.27.
Contents of Explosives Magazines
10
7-12.28.
Content of Detonator Magazines
10
7-12.29.
Illumination of Magazines
10
7-12.30. Daily
Supply
10
7-12.31.
Cleaning of Magazines
10
7-12.32.
Opening of Packages
10
7-12.33. Fuse
Capping
10
7-12.34. Primers
10
7-12.35.
Transportation from Surface
10
7-12.36. Distribution
Underground
10

BLASTING--GENERAL
7-12.37.
Examination of Face
10
7-12.38. Deepening
Holes
10
7-12.39.
Size of Holes
10 7-12.40.
Removing Cartridge Wrappers
10
7-12.41.
Loading and Tamping
10
7-12.42. Adjacent
Workings
10
7-12.43.
Method of Firing
10
7-12.44. Blasting
Circuit--Type
11
7-12.45. Making
Connections
11
` 7-12.46. Testing
Circuits
11
7-12.47. Firing
Switch
11
7-12.48. Blasting
Circuit--Plugs
11
7-12.49.
Use of Blasting Machines
11
7-12.50. Lighting
Fuse
11
7-12.51.
Warning and Retreat
11
7-12.52.
Return to the Face
11
7-12.53. Misfires
11
7-12.54 Unexploded
Charges
11
7-12.55
Record of Misfires
11

7-13. COMBUSTIBLE
LIQUIDS--STORAGE, TRANSPORTATION AND SUPPLY
7-13.1.
Flammable Liquid
11
7-13.2.
Storage of Flammable Liquid Fuel
11
7-13.3.
Storage of Lubricating and Other Combustible Oils
11
7-13.4.
Barriers
11
7-13.5.
Tank Vents
12
7-13.6.
Storage Buildings
12
7-13.7.
Flammable Liquids Underground
12
7-13.8.
Lubricating or Other Combustible Oils Underground
12
7-13.9.
Transportation
12

7-14. ELECTRICAL
EQUIPMENT
7-14.1.
Personnel
12
7-14.2.
Installation and Maintenance
12
7-14.3.
Inspection
12
7-14.4.
Rating of Equipment
12
7-14.5.
Size of Insulated Conductors
Table of Allowable Current-Carrying Capacities of
Insulated Conductors in Amperes
13
7-14.6.
Equipment Above Ground Installation
14
7-14.7.
Transmission Conductors Above Ground
14
7-14.8.
Grounding of Equipment
14
7-14.9.
Continuity of Coverings for Conductors
14
7-14.10.
Pipe Lines--Return Rail Bonding
14
7-14.11.
Rail Return Bonding
14
7-14.12. Maximum
Voltage
14
7-14.13.
Capacity of Circuits
14
7-14.14. Unarmored
Conductors
14
7-14.15. Buried
Conductors
14 7-14.16.
Joints in Conductors
14
7-14.17.
Protection of Joints in Conductors
14
7-14.18. Conductor
Fittings
14
7-14.19. Fuses
14
7-14.20.
Capacity of Fuses
14
7-14.21.
Protection of Repairmen
14
7-14.22.
Protection of Operators
14
7-14.23.
Protection of Equipment
15
7-14.24.
Protection of Terminals
15
7-14.25.
Location of Equipment
15
7-14.26.
Mountings for Control Equipment
15
7-14.27.
First Aid Signs
15
7-14.29.
Fire Fighting Equipment
15
7-14.30.
Conductors in Gaseous Places
15

MOTORS AND GENERATORS--GENERAL PROVISION
7-14.31.
Indicators for Generators
15
7-14.32. Motor
Connections
15
7-14.33.
Motors--Controls, Fuses and Circuit-Breakers
15
7-14.34.
Motor Circuit Fuses
15

SWITCHBOARDS
7-14.35. Frames
15
7-14.36. Floor
Mats
15
7-14.37. Flooring
15
7-14.38. Acces.--Rear
Passageway
15
7-14.39. Conductors--Rear
Passageway
16

TRANSFORMERS
7-14.40. Transformer
Rooms
16
7-14.41.
Current Interrupting Devices--General
16
7-14.42.
Current Interruption and Control--Over Five Hundred (500) Volts 16
7-14.43.
Circuits Entering or Leaving all Transformers
16

SWITCHES
7-14.44. Protection
16
7-14.45. Installation
16
7-14.46. Air-Break
Switches

16

FLEXIBLE LAMP CORDS
7-14.47. Lamp
Cords
16
7-14.48. Protection
16

TRAILING CABLES
7-14.49. Plugs
16
7-14.50. Connections
16 7-14.51. Maintenance
16

WIRING IN SHAFTS, PASSAGEWAYS, ETC.
7-14.52.
Wiring in Bore Holes
16
7-14.53. Supports
16
7-14.54.
Protection of Conductors
16
7-14.55.
Protection & Support for Power Conductors in Shafts--General
17

CIRCUITS TO UNDERGROUND--PROTECTION AND SUPERVISION
7-14.56. General
Provision
17
7-14.57.
Circuits to Underground--Switches and Circuit Breakers
17
7-14.58.
Two-Wire D.C. Circuits
17
7-14.59.
Three-Wire D.C. Circuits
17
7-14.60.
Three-Phase A.C. Circuits
17
7-14.61.
Overhead Conductors Above Ground--Lightning Arresters
17
7-14.62. Lightning
Arresters--Transformers
17

LIGHTING SYSTEMS
7-14.63.
Size of Conductors
17
7-14.64. Lamp
Sockets
17
7-14.65.
Location of Lamps
17

POWER CIRCUITS
7-14-66.
Location of Conductors
17
7-14.67. Sectionalizing
18
7-14.68. Branch
Circuits
18

TROLLEY CIRCUITS
7-14.69. Supports
18
7-14.70. Sectionalizing
18
7-14.71.
Sectional Switches and Frogs
18
7-14.72.
Protection of Trolley Conductors
18

SIGNAL AND TELEPHONE CIRCUITS
7-14.73. Location
18
7-14.74. Protection
18
7-14.75. Voltage
18

7-15 HOISTING
7-15.1.
Personnel
18
7-15.2.
Literacy of Hoisting Engineers
18
7-15.3.
Age
18
7-15.4.
Number of Hoisting Operators
18
7-15.5.
Change of Personnel
19
7-15.6.
Entering Engine Room
19
7-15.7.
Conversation
19 7-15.8.
Speed-General
19
7-15.9.
Speed of Buckets
19
7-15.10. Notice
19
7-15.11.
Wheel