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§ 865. —  Electrical equipment.

WAIS Document Retrieval



[Laws in effect as of January 24, 2002]
[Document not affected by Public Laws enacted between
  January 24, 2002 and December 19, 2002]
[CITE: 30USC865]

 
                   TITLE 30--MINERAL LANDS AND MINING
 
                   CHAPTER 22--MINE SAFETY AND HEALTH
 
SUBCHAPTER III--INTERIM MANDATORY SAFETY STANDARDS FOR UNDERGROUND COAL 
                                  MINES
 
Sec. 865. Electrical equipment


(a) Allowable equipment; replacements; maintenance; permits for 
        noncompliance; renewals; limitations; list of electric face 
        equipment; survey of new and rebuilt equipment; publication of 
        results

    (1) Effective one year after the operative date of this subchapter--
        (A) all junction or distribution boxes used for making multiple 
    power connections inby the last open crosscut shall be permissible;
        (B) all handheld electric drills, blower and exhaust fans, 
    electric pumps, and such other low horsepower electric face 
    equipment as the Secretary may designate within two months after the 
    operative date of this subchapter which are taken into or used inby 
    the last open crosscut of any coal mine shall be permissible;
        (C) all electric face equipment which is taken into or used inby 
    the last open crosscut of any coal mine classified under any 
    provision of law as gassy prior to the operative date of this 
    subchapter shall be permissible; and
        (D) all other electric face equipment which is taken into or 
    used inby the last crosscut of any coal mine, except a coal mine 
    referred to in paragraph (2) of this subsection, which has not been 
    classified under any provision of law as a gassy mine prior to the 
    operative date of this subchapter shall be permissible.

    (2) Effective four years after the operative date of this 
subchapter, all electric face equipment, other than equipment referred 
to in paragraph (1)(B) of this subsection, which is taken into or used 
inby the last open crosscut of any coal mine which is operated entirely 
in coal seams located above the watertable and which has not been 
classified under any provision of law as a gassy mine prior to the 
operative date of this subchapter and in which one or more openings were 
made prior to December 30, 1969, shall be permissible, except that any 
operator of such mine who is unable to comply with the provisions of 
this paragraph on such effective date may file with the Panel an 
application for a permit for noncompliance ninety days prior to such 
date. If the Panel determines, after notice to all interested persons 
and an opportunity for a public hearing under section 804 of this title, 
that such application satisfies the provisions of paragraph (10) of this 
subsection and that such operator, despite his diligent efforts, will be 
unable to comply with such provisions, the Panel may issue to such 
operator such a permit. Such permit shall entitle the permittee to an 
additional extension of time to comply with the provisions of this 
paragraph of not to exceed twenty-four months, as determined by the 
Panel, from such effective date.
    (3) The operator of each coal mine shall maintain in permissible 
condition all electric face equipment required by this subsection to be 
permissible which is taken into or used inby the last open crosscut of 
any such mine.
    (4) Each operator of a coal mine shall, within two months after the 
operative date of this subchapter, file with the Secretary a statement 
listing all electric face equipment by type and manufacturer being used 
by such operator in connection with mining operations in such mine as of 
the date of such filing, and stating whether such equipment is 
permissible and maintained in permissible condition or is nonpermissible 
on such date of filing, and, if nonpermissible, whether such 
nonpermissible equipment has ever been rated as permissible, and such 
other information as the Secretary may require.
    (5) The Secretary shall promptly conduct a survey as to the total 
availability of new or rebuilt permissible electric face equipment and 
replacement parts for such equipment and, within six months after the 
operative date of this subchapter, publish the results of such survey.
    (6) Any operator of a coal mine who is unable to comply with the 
provisions of paragraph (1)(D) of this subsection within one year after 
the operative date of this subchapter may file with the Panel an 
application for a permit for noncompliance. If the Panel determines that 
such application satisfies the provisions of paragraph (10) of this 
subsection, the Panel shall issue to such operator a permit for 
noncompliance. Such permit shall entitle the permittee to an extension 
of time to comply with such provisions of paragraph (1)(D) of not to 
exceed twelve months, as determined by the Panel, from the date that 
compliance with the provisions of paragraph (1)(D) of this subsection is 
required.
    (7) Any operator of a coal mine issued a permit under paragraph (6) 
of this subsection who, ninety days prior to the termination of such 
permit, or renewal thereof, determines that he will be unable to comply 
with the provisions of paragraph (1)(D) of this subsection upon the 
expiration of such permit may file with the Panel an application for 
renewal thereof. Upon receipt of such application, the Panel, if it 
determines, after notice to all interested persons and an opportunity 
for a public hearing under section 804 of this title, that such 
application satisfies the provisions of paragraph (10) of this 
subsection and that such operator, despite his diligent efforts, will be 
unable to comply with the provisions of paragraph (1)(D), may renew the 
permit for a period not exceeding twelve months.
    (8) Any permit or renewal thereof issued pursuant to this subsection 
shall entitle the permittee to use such nonpermissible electric face 
equipment specified in the permit during the term of such permit.
    (9) Permits for noncompliance issued under paragraphs (6) or (7) of 
this subsection shall, in the aggregate, not extend the period of 
noncompliance more than forty-eight months after December 30, 1969.
    (10) Any application for a permit of noncompliance filed under this 
subsection shall contain a statement by the operator--
        (A) that he is unable to comply with paragraph (1)(D) or 
    paragraph (2) of this subsection, as appropriate, within the time 
    prescribed;
        (B) listing the nonpermissible electric face equipment being 
    used by such operator in connection with mining operations in such 
    mine on the operative date of this subchapter and the date of the 
    application by type and manufacturer for which a noncompliance 
    permit is requested and whether such equipment had ever been rated 
    as permissible;
        (C) setting forth the actions taken from and after the operative 
    date of this subchapter to comply with paragraph (1)(D) or paragraph 
    (2) of this subsection, as appropriate, together with a plan setting 
    forth a schedule of compliance with said paragraphs for each such 
    equipment referred to in such paragraphs and being used by the 
    operator in connection with mining operations in such mine with 
    respect to which such permit is requested and the means and measures 
    to be employed to achieve compliance; and
        (D) including such other information as the Panel may require.

    (11) No permit for noncompliance shall be issued under this 
subsection for any nonpermissible electric face equipment, unless such 
equipment was being used by an operator in connection with the mining 
operations in a coal mine on the operative date of this subchapter.
    (12) Effective one year after the operative date of this subchapter, 
all replacement equipment acquired for use in any mine referred to in 
this subsection shall be permissible and shall be maintained in a 
permissible condition, and in the event of any major overhaul of any 
item of equipment in use one year from the operative date of this 
subchapter such equipment shall be put in, and thereafter maintained in, 
a permissible condition, unless, in the opinion of the Secretary, such 
equipment or necessary replacement parts are not available.

(b) Notification of permits

    A copy of any permit granted under this section shall be mailed 
immediately to a representative of the miners of the mine to which it 
pertains, and to the public official or agency of the State charged with 
administering State laws relating to coal mine health and safety in such 
mine.

(c) Gassy mines; maintenance of equipment

    Any coal mine which, prior to the operative date of this subchapter, 
was classed gassy under any provision of law and was required to use 
permissible electric face equipment and to maintain such equipment in a 
permissible condition shall continue to use such equipment and to 
maintain such equipment in such condition.

(d) Location of nonpermissible power connection units

    All power-connection points, except where permissible power 
connection units are used, outby the last open crosscut shall be in 
intake air.

(e) Mine map; contents; modifications

    The location and the electrical rating of all stationary electric 
apparatus in connection with the mine electric system, including 
permanent cables, switchgear, rectifying substations, transformers, 
permanent pumps and trolley wires and trolley feeder wires, and settings 
of all direct-current circuit breakers protecting underground trolley 
circuits, shall be shown on a mine map. Any changes made in a location, 
electric rating, or setting shall be promptly shown on the map when the 
change is made. Such map shall be available to an authorized 
representative of the Secretary and to the miners in such mine.

(f) Repairs; deenergizing of equipment; authorized personnel; locking 
        out of disconnection devices

    All power circuits and electric equipment shall be deenergized 
before work is done on such circuits and equipment, except when 
necessary for trouble shooting or testing. In addition, energized 
trolley wires may be repaired only by a person trained to perform 
electrical work and to maintain electrical equipment and the operator of 
such mine shall require that such person wear approved and tested 
insulated shoes and wireman's gloves. No electrical work shall be 
performed on low-, medium-, or high-voltage distribution circuits or 
equipment, except by a qualified person or by a person trained to 
perform electrical work and to maintain electrical equipment under the 
direct supervision of a qualified person. Disconnecting devices shall be 
locked out and suitably tagged by the persons who performed such work, 
except that, in cases where locking out is not possible, such devices 
shall be opened and suitably tagged by such persons. Locks or tags shall 
be removed only by the persons who installed them or, if such persons 
are unavailable, by persons authorized by the operator or his agent.

(g) Periodic examinations; maintenance; records; accessibility

    All electric equipment shall be frequently examined, tested, and 
properly maintained by a qualified person to assure safe operating 
conditions. When a potentially dangerous condition is found on electric 
equipment, such equipment shall be removed from service until such 
condition is corrected. A record of such examinations shall be kept and 
made available to an authorized representative of the Secretary and to 
the miners in such mine.

(h) Electrical conductors

    All electric conductors shall be sufficient in size and have 
adequate current-carrying capacity and be of such construction that a 
rise in temperature resulting from normal operation will not damage the 
insulating materials.

(i) Electrical connections

    All electrical connections or splices in conductors shall be 
mechanically and electrically efficient, and suitable connectors shall 
be used. All electrical connections or splices in insulated wire shall 
be reinsulated at least to the same degree of protection as the 
remainder of the wire.

(j) Cables and wires; entry through metal frames

    Cables shall enter metal frames of motors, splice boxes, and 
electric compartments only through proper fittings. When insulated wires 
other than cables pass through metal frames the holes shall be 
substantially bushed with insulated bushings.

(k) Support of power wires

    All power wires (except trailing cables on mobile equipment, 
specially designed cables conducting high-voltage power to underground 
rectifying equipment or transformers, or bare or insulated ground and 
return wires) shall be supported on well-insulated insulators and shall 
not contact combustible material, roof, or ribs.

(l) Insulation of power wires; exceptions

    Power wires and cables, except trolley wires, trolley feeder wires, 
and bare signal wires, shall be insulated adequately and fully 
protected.

(m) Circuit breakers; overload protection for three-phase motors

    Automatic circuit-breaking devices or fuses of the correct type and 
capacity shall be installed so as to protect all electric equipment and 
circuits against short circuit and overloads. Three-phase motors on all 
electric equipment shall be provided with overload protection that will 
deenergize all three phases in the event that any phase is overloaded.

(n) Disconnecting switches for main power circuits; location and 
        installation

    In all main power circuits, disconnecting switches shall be 
installed underground within five hundred feet of the bottoms of shafts 
and boreholes through which main power circuits enter the underground 
area of the mine and within five hundred feet of all other places where 
main power circuits enter the underground area of the mine.

(o) Switches

    All electric equipment shall be provided with switches or other 
controls that are safely designed, constructed, and installed.

(p) Lightning arresters

    Each ungrounded, exposed power conductor that leads underground 
shall be equipped with suitable lightning arresters of approved type 
within one hundred feet of the point where the circuit enters the mine. 
Lightning arresters shall be connected to a low resistance grounding 
medium on the surface which shall be separated from neutral grounds by a 
distance of not less than twenty-five feet.

(q) Nonapproved devices

    No device for the purpose of lighting any coal mine which has not 
been approved by the Secretary or his authorized representative shall be 
permitted in such mine.

(r) Deenergizing of electric face equipment

    An authorized representative of the Secretary may require in an

	 
	 




























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