Chapter 1. STATE MINE INSPECTOR

Historical Note Former Rule 7:07; Former Section R11-1-707 renumbered as Section R11-1-666 effective August 18, 1980 (Supp. 80-4).

R11-1-708. Reserved

R11-1-709. Reserved

R11-1-710. Reserved

All employees involved in the escape and evacuation plan for an underground operation shall be instructed at least once each calendar year on current escape and evacuation plans, fire alarm signals, and applicable procedures to be followed in case of fire or other emergency. New …

Any refuge area shall be: 1. Of fire resistant construction, preferably in untimbered areas of the mine. 2. Large enough to accommodate readily the normal number of men in the particular area of the mine. 3. Constructed so they can be made gas tight. 4. Provided with compressed a…

In underground mines, information shall be posted and made available showing escape routes, directions of principal air flow, locations of telephones, fire doors and ventilation doors. Historical Note Former Rule 7:13.

Telephone or other voice communications shall be provided between the surface in any underground refuge chambers and such systems shall be independent of the mine power supply. Historical Note Former Rule 7:14.

Designated escapeways inclined more than 30 degrees horizontal shall be equipped with stairways, ladders, cleared walkways or emergency hoisting facilities. Historical Note Former Rule 7:15.

Underground mine evacuation drills shall be held for each shift once every six months. These evacuation drills shall involve all employees on each shift and shall include: 1. Activation of fire alarm system. 2. Evacuation of all men from their work areas to the surface of designa…

A specific escape and evacuation plan and revisions thereof suitable to the conditions and mining system of the mine and showing assigned responsibilities of all key personnel in the event of an emergency shall be developed by the operator and set out in written form. Within 45 c…

A suitable and properly maintained one-hour minimum capacity self-rescue device shall be made available by the operator to all personnel underground. Historical Note Adopted effective April 7, 1976 (Supp. 76-2). Amended effective August 18, 1980 (Supp. 80-4).

A. Except as provided in subsections (B) and (C) of this Section, self-rescue devices meeting the requirements of standard R11-1-718 shall be worn or carried by all persons underground. B. Where the wearing or carrying of self-rescue devices meeting the requirements of standard R…

A. All persons who are required to perform services underground shall be instructed on an annual basis in the Mine Safety and Health Administration approved course in Mine Emergency Training. The instruction to be given by persons who are certified by the Mine Safety and Health A…

Portable ladders other than stepladders shall be equipped with nonslip safety shoes. Whenever practical, ladders should be secured against tipping or falling. Historical Note Former Rule 7:21.

All scaffolding, staging or temporary work platforms shall be adequate in strength and design and shall be secured against tipping or falling. Historical Note Former Rule 7:22.

Adequate ladders and ladderways shall be provided wherever necessary. All fixed ladders shall be securely fastened and shall provide at least three inches of toe clearance. Ladders shall extend at least three feet above the top landings or substantial handholds shall be provided …

Tops of manways and open holes shall be adequately covered or guarded. Historical Note Former Rule 7:24.

Regularly used walkways and travelways should be sanded, salted or cleared of snow and ice as soon as practical. Historical Note Former Rule 7:25.

Trap doors or adequate guarding shall be provided in ladderways at each level. Doors shall be kept operable. Historical Note Former Rule 7:26.

Fixed ladders 70 degrees to 90 degrees from the horizontal and 30 feet or more in length shall have backguards, cages or equivalent protection, starting at a point not more than seven feet from the bottom of the ladders. Historical Note Adopted effective August 18, 1980 (Supp. 80…

New electrical equipment shall be installed, maintained and used in accordance with the National Electrical Code. Historical Note Former Rule 8:01.

All electrical equipment shall be maintained so as to reduce the accident hazard so far as is reasonably possible. Historical Note Former Rule 8:02; Amended effective August 18, 1980 (Supp. 80-4).

Electrical work shall be performed or supervised by qualified persons. Historical Note Former Rule 8:03.

Electric drills or other electrically operated hand rotating tools shall have the electric switch constructed so as to break the circuit when the hand releases the switch or shall be equipped with friction or safety devices, and shall be properly grounded. Historical Note Former …

Historical Note Former Rule 8:05; Repealed effective August 18, 1980 (Supp. 80-4).

Switches which are open to permit work on lines or equipment must be tagged with warning signs and no persons, other than the person placing these signs or his supervisor may remove them. These warning signs must be signed and dated (including the time of day) by the person placi…

A. All electrical equipment, motors, switch boxes, controllers, cable casings, both underground and surface, must be properly grounded. B. Equipment operating off portable A.C. power supply shall be frame grounded back to the generator. Historical Note Former Rule 8:07; Amended e…

Electrical equipment and circuits shall be provided with switches or other controls. Said switches or controls shall be of approved design and construction and shall be properly installed. Historical Note Former Rule 8:08.

Individual overload protection or short circuit detection shall be provided for the trailing cables of mobile equipment. Historical Note Former Rule 8:09.

Trailing cable and power cable connections to junction boxes shall not be made or broken under load. Historical Note Former Rule 8:10.

High potential transmission cables shall be covered, insulated, or placed according to acceptable electrical codes to prevent contact with low potential circuits. Historical Note Former Rule 8:11.

Shovel trailing cables shall not be moved with the shovel dipper unless cable slings or sleds are used. Historical Note Former Rule 8:12.

Historical Note Former Rule 8:13; Repealed effective August 18, 1980 (Supp. 80-4).

Transformer enclosures shall be kept locked against unauthorized entry. Historical Note Former Rule 8:14.

Principal power switches shall be labeled to show which units they control unless identification can be made readily by location. Historical Note Former Rule 8:15.

Dry wooden platforms, insulating mat or other electrical nonconductive material shall be kept in place at all switchboards and power control switches where shock hazards exist. However, metal plates on which a person normally would stand and which are kept at the same potential a…

Suitable danger signs shall be posted at all major electrical installations. Historical Note Former Rule 8:17.

Metal fencing and metal buildings enclosing transformers and switch gear shall be grounded. Historical Note Former Rule 8:18.

Circuits shall be de-energized before fuses are removed or replaced. Fuse tongs or hot-line tools shall be used when fuses are removed or replaced in high potential circuits. Historical Note Former Rule 8:19; Amended effective August 18, 1980 (Supp. 80-4).

Switches and starting boxes shall be of safe design and capacity. Historical Note Former Rule 8:20.

When equipment must be moved under energized power lines and the clearance is less than ten feet, the power lines shall be de-energized or other precautions shall be taken. Historical Note Former Rule 8:21.

Power circuits shall be de-energized before work is done on such circuits unless hot-line equipment is used. Switches shall be locked out or other measures taken which shall prevent the power circuits from being energized without the knowledge of the individuals working on them. …

Hand held electric tools shall not be operated at high potential voltages. Historical Note Former Rule 8:23.

Guy wires of poles supporting high-voltage transmission lines shall meet the requirements for grounding or insulator protection of the National Electrical Safety Code. Historical Note Former Rule 8:24.

Telegraph, telephone, or signal wires shall not be installed on the same crossarm with power conductors. When carried on poles supporting power lines, they shall be installed as specified by the National Electrical Safety Code. Historical Note Former Rule 8:25.

Electrical connections and resistor grids that are difficult or impractical to insulate shall be guarded unless protection is provided by location. Historical Note Former Rule 8:26.

Continuity and resistance of grounding systems shall be tested by a competent person after installation, repair and modification; and annually thereafter, and records of the resistance measured during the most recent tests shall be made available for examination by the inspector.…

Inspection and cover plates on electrical equipment and junction boxes shall be kept in place at all times except during testing and repairs. Historical Note Former Rule 8:28; Amended effective August 18, 1980 (Supp. 80-4).

R11-1-829. Reserved