Chapter 1. STATE MINE INSPECTOR

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. Notes Ariz. Admin. Code § R11-1-807 Former …

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. Notes Ariz. Admin. Code § R11-1-808 Former Rule 8:08.

Individual overload protection or short circuit detection shall be provided for the trailing cables of mobile equipment. Notes Ariz. Admin. Code § R11-1-809 Former Rule 8:09.

Trailing cable and power cable connections to junction boxes shall not be made or broken under load. Notes Ariz. Admin. Code § R11-1-810 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. Notes Ariz. Admin. Code § R11-1-811 Former Rule 8:11.

Shovel trailing cables shall not be moved with the shovel dipper unless cable slings or sleds are used. Notes Ariz. Admin. Code § R11-1-812 Former Rule 8:12.

Transformer enclosures shall be kept locked against unauthorized entry. Notes Ariz. Admin. Code § R11-1-814 Former Rule 8:14.

Principal power switches shall be labeled to show which units they control unless identification can be made readily by location. Notes Ariz. Admin. Code § R11-1-815 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. Notes Ariz. Admin. Code § R11-1-817 Former Rule 8:17.

Metal fencing and metal buildings enclosing transformers and switch gear shall be grounded. Notes Ariz. Admin. Code § R11-1-818 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. Notes Ariz. Admin. Code § R11-1-819 Former Rule 8:19; Amended effective August 18, 1980 (Supp. 80-4).…

Switches and starting boxes shall be of safe design and capacity. Notes Ariz. Admin. Code § R11-1-820 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. Notes Ariz. Admin. Code § R11-1-821 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. Notes Ariz. Admin. Code § R11-1-823 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. Notes Ariz. Admin. Code § R11-1-824 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. Notes Ariz. Admin. Code § R11-1-825 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. Notes Ariz. Admin. Code § R11-1-826 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. Notes Ariz. Admin. Code § R11-1-828 Former Rule 8:28; Amended effective August 18, 1980 (Supp. 80-4).

Notes Ariz. Admin. Code § R11-1-829

Notes Ariz. Admin. Code § R11-1-830

Power lines, including trolley wires and telephone circuits shall be protected against short circuits and lightning. Notes Ariz. Admin. Code § R11-1-831 Former Rule 8:31.

Where metallic tools or equipment can come in contact with trolley wires or bare power lines, the lines shall be guarded or de-energized. Notes Ariz. Admin. Code § R11-1-832 Former Rule 8:32.

Power lines shall be well separated or insulated from water lines, telephone lines, and air lines. Notes Ariz. Admin. Code § R11-1-833 Former Rule 8:33.

Transformers shall be totally enclosed or shall be placed at least 8 feet above the ground, or installed in a transformer house, or surrounded by a substantial fence at least 6 feet high and at least three feet from any energized parts, casings, or wiring. Notes Ariz. Admin. Code…

No employee shall take hold of energized shovel or energized drill power cable without suitable equipment designed for such a job. Notes Ariz. Admin. Code § R11-1-835 Former Rule 8:35.

Suitable protection against falling shall be provided for any work required above ground or floor level. Notes Ariz. Admin. Code § R11-1-901 Former Rule 9:01.

Safety belts and lines shall be worn when men work where there is danger of falling. A second person shall tend the lifeline when bins, tanks or other dangerous areas are entered. Life jackets or belts shall be worn where there is danger from falling into water. Notes Ariz. Admin…