Program Policy Manual - VOLUME V - Mine Safety and Health ...

MSHA PROGRAM POLICY MANUAL VOLUME V
to be performed by a qualified person or a person trained to
perform electrical work and to maintain electric equipment under
the direct supervision of a qualified person.
1. Locating faults in cables
2. Replacing blown fuses, except blown fuses on trolley
poles may be replaced by miners other than persons
qualified to do electrical work when:
a. it is not necessary to remove a cover lid or panel
to gain access to the fuse;
b. the correct replacement fuse is available;
c. the fuse holder, power conductors, and motor
controller have not been damaged;
d. warning signs are placed on the equipment to warn
miners of the dangers of changing a blown trolley
pole fuse without removing the trolley pole;
e. information signs are placed on the equipment to
inform miners of the correct fuse for the equipment;
and
f. the miners who install the fuses have received
training in the hazards of energized trolley wires,
voltage and current ratings of fuses, and in the
safe methods for installing fuses. All miners who
perform tasks involving equipment that use trolley
fuses (e.g., motorman, supply crewman) should
receive this training as part of the training they
receive under applicable provisions of Part 48.
3. Making splices, connections and terminations in electric
conductors and cables
4. Installation of couplers on the end of cables
5. Repair of electric components of electrically-powered
portable, mobile or stationary equipment
6. Installation of electric wiring
7. Electrical maintenance of permissible equipment
February 2003 (Release V-33) 56