30 CFR § 75.1719-1 Illumination in working places.
(a) Each operator of an underground coal mine shall provide each
working place in the mine with lighting as prescribed in §§75.1719-1 and
75.1719-2 while self-propelled mining equipment is
operated in the working place.
(b)Self-propelled mining equipment; definition. For the
purposes of §§75.1719 through 75.1719-4,
"self-propelled mining equipment" means equipment which possesses the
capability of moving itself or its associated components from one location
to another by electric, hydraulic, pneumatic, or mechanical power supplied
by a source located on the machine or transmitted to the machine by cables,
ropes, or chains.
(c) The lighting prescribed in this section shall be in addition to
that provided by personal cap lamps.
(d) The luminous intensity (surface brightness) of surfaces that are
in a miner's normal field of vision of areas in working places that are
required to be lighted shall be not less than 0.06 footlamberts when
measured in accordance with §75.1719-3.
(e) When self-propelled mining equipment specified in paragraphs
(e)(1) through (e)(6) of this section is operated in a working place, the
areas within a miner's normal field of vision which shall be illuminated in
the working place shall be as prescribed in paragraphs (e)(1) through (e)(6)
of this section.
(1)Continuous miners and coal-loading equipment.
In working places in which continuous miners and coal-loading equipment are
operated, the areas which shall be illuminated shall be as follows:
(e)(1)(i) The face, and
(e)(1)(ii) The ribs, roof, floor, and exposed surface of mining
equipment, which are between the face and the inby end of the shuttle car or
other conveying equipment while in position to receive material.
(2)Self-loading haulage equipment used as a loading
machine. In working places in which self-loading haulage equipment is
operated to load material, the areas which shall be illuminated shall be as
follows:
(e)(2)(i) The face, and
(e)(2)(ii) The ribs, roof, floor, and exposed surfaces of mining
equipment, which are between the face and a point 5 feet outby the
machine.
(3)Cutting and drilling equipment. In working
places in which cutting or drilling equipment is operated, the areas which
shall be illuminated shall be as follows:
(e)(3)(i) The ribs, roof, floor, and exposed surfaces of mining
equipment, which are between the face and a point 5 feet outby the
machine.
(4)Shortwall and longwall mining equipment. In
working places in which shortwall or longwall mining equipment is operated,
the areas which shall be illuminated shall be as follows:
(e)(4)(i) The area for the length of the self-advancing roof
suport system and which is between the gob-side of the travelway and the side
of the block of coal from which coal is being extracted, and
(e)(4)(ii) The control station, and the head piece and tail
piece of the face conveyor, and
(e)(4)(iii) The roof and floor for a distance of 5 feet
horizontally from the control station, head piece and tail piece.
(5)Roof bolting equipment. In working places in
which roof bolting equipment is operated, the areas which shall be
illuminated shall be as follows:
(e)(5)(i)Where the distance from the floor, to the roof is
5 feet, or less: the face, ribs, roof, floor, and exposed surfaces of
mining equipment, which are within an area the perimeter of which is a
distance of 5 feet from the machine, when measured parallel to the floor.
(e)(5)(ii)Where the distance from the floor to the roof is
more than 5 feet: the face, ribs, roof, floor, and exposed surfaces of
mining equipment, which are within an area the perimeter of which from the
front and sides of the machine is a distance equal to the distance from the
floor to the roof and from the rear of the machine a distance of 5 feet, when
measured parallel to the floor.
(6)Other self-propelled equipment. Unless the
entire working place is illuminated by stationary lighting equipment, in
working places in which self-propelled equipment is operated, other than
equipment specified in paragraphs (e)(1) through (e)(5) of this section,
illumination shall be provided as follows:
(e)(6)(i) Luminaires shall be installed on each machine operated
in the working place which shall illuminate a face or rib coal surface which
is within 10 feet of the front and the rear of the machine to a luminous
intensity of not less than 0.06 footlamberts, and
(e)(6)(ii) The height and width of the area of the coal surface
which shall be illuminated shall equal the height and width, respectively, of
the machine on which the luminaires are installed, and
(e)(6)(iii) The luminaires in the direction of travel shall be
operated at all times the equipment is being trammed in the working
place.
(f) The Administrator, Coal Mine Health and Safety, MSHA, may specify
other areas in a working place to be illuminated for the protection of miners
while self-propelled mining equipment is being operated in the working
place.
(g) Surface brightness of floor, roof, coal and machine surfaces in
the normal visual field of a miner shall not vary more than 50 percent
between adjacent fields of similar surface reflectance, and the maximum
surface brightness of such surface shall not exceed 120 footlamberts when
measured in accordance with §75.1719-3.
[41 FR 43534, Oct. 1, 1976, as amended at 42 FR 18859, Apr. 11, 1977; 43 FR
43458, Sept. 26, 1978; 47 FR 28096, June 29, 1982]
