25-9-133
Section 25-9-133 Underground storage of explosives and detonators. (a) Underground section
boxes or magazines shall be constructed of substantial nonsparking material and shall be placed
in a crosscut or idle room neck at least 25 feet from roadways, trolley wires, or power lines,
at least 75 feet from any working face and in a reasonably dry and well rock dusted place,
free of oil, grease, or other debris. (b) Explosives and detonators shall be stored separately
and at least five feet apart. Not more than a 48-hour supply of explosives and detonators,
including any surplus remaining from the previous day, shall be stored underground in section
boxes or magazines. This maximum 48-hour supply will include supplies in individual or face
boxes where used. (c) A one day's supply of explosives and detonators may be kept in individual
or face boxes. Those boxes shall be wooden with hinged lids and shall be kept not less than
15 feet from roadways, trolley wires, or power lines; provided,...
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25-9-277
Section 25-9-277 Handling and use of explosives and detonators. (a) Only designated persons
shall cut, cap, and issue capped fuses and explosives. (b) When cutting fuse, it shall be
cut square across with a sharp clean instrument and the cap crimper used shall be of a type
recommended by explosive manufacturers. A bench type crimper is recommended. (c) No explosives
container shall be opened with any metallic instrument. (d) No person shall remove any explosives
from a pit magazine without permission of the pit superintendent, foreman, or a person designated
by the operator. (e) Capped fuse or electric detonators shall not be stored within 50 feet
of other explosives, power lines, cables, or other electrical conductors. (f) Oils or other
combustible substances shall not be stored within 50 feet of any explosives. (g) Detonators
shall not be removed from containers except as they are used for capping fuses or, in the
case of electric detonators, as they are used in preparing primers,...
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25-9-131
Section 25-9-131 Surface storage of explosives and detonators. (a) Separate surface magazines
shall be provided for the storage of explosives and detonators and shall be kept in good repair.
(b) Magazines shall be constructed of or covered with fire and weather resistant material,
shall be reasonably bullet proof and shall have no metal or sparking material exposed inside
the magazine. When a magazine is used for more than one type of explosive, each type shall
be stored separately. (c) The only openings shall be doors for entrance, which shall be securely
locked when unattended, and properly screened vents. (d) If artificial light is needed, only
an electric flashlight, electric lantern, or electric cap lamp shall be used. Smoking, carrying
of smokers' articles, or open flame are prohibited in or within 25 feet of any magazine. Combustible
materials, including rubbish and dry grass, shall be kept clear of any magazine for a distance
of 25 feet in all directions. (e) Other material...
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25-9-134
Section 25-9-134 Blasting practices and procedures generally. (a) Only competent persons shall
be designated or permitted to handle explosives or do blasting. Only electric detonators of
proper strength may be used and the use of delay electric detonators is prohibited for blasting
coal or coal and other material. Primers shall be made up as needed for blasting and prepared
in accordance with the safety standards of the Institute of Makers of Explosives or of the
manufacturer of the explosives as approved by the chief; provided, however, that nothing provided
in this subsection shall prohibit the use of permissible millisecond blasting in conformity
with the requirements, exceptions, limitations, conditions, and restrictions on the use thereof
established or hereinafter established by the Bureau of Mines of the United States Department
of the Interior. (b) Care shall be used in placement and drilling of holes. Test roof, face,
ribs and timbers for dangerous conditions before drilling...
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25-9-279
Section 25-9-279 Electrical blasting practices and procedures. (a) When loading or charging
blast holes with electric detonators, all electric power within an unsafe distance of the
place to be blasted shall be deenergized. (b) Electric blasting with blasting machines or
special circuit is permissible. With blasting machines, connections shall be made in series
or in a combination connection recommended by the manufacturer. With power currents, connections
shall be made in series, parallel, or a combination of the two. (c) When blasting is by means
of a special blasting circuit, no one shall enter the place in which the blasting has been
done until the permanent blasting wires have been disconnected from the source of electrical
energy and the blasting switch has been locked in the open position. (d) The person responsible
for blasting shall be in charge of the blasting machine when it is in the pit. No other person
shall connect the blasting machine to the leading wires, and such...
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25-9-278
Section 25-9-278 Blasting practices and procedures generally. (a) All blasting shall be done
in a safe manner after all persons have been removed to a safe place. (b) All blasting should
be done electrically or with detonating fuse. (c) Primers shall be made up near the working
place by competent persons experienced in handling explosives. Competent persons shall also
load, assist in loading, or supervise the loading or charging of drill holes. (d) Primers
shall be prepared in accordance with safety standards of the Institute of Makers of Explosives
or of the manufacturer of the explosives as approved by the chief. Holes made in the primer
cartridge for the purpose of inserting the detonator shall be made with a wooden or other
nonsparking implement. (e) In tamping holes, only a wooden tamping bar or other nonsparking
tamping bar shall be used. Before charging drill holes, except well holes, they shall be thoroughly
cleaned. Explosives shall not be violently tamped in the drill hole...
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25-9-230
Section 25-9-230 Face equipment. (a) The cutter chains of mining machines shall be locked securely
at all times except when the machine is cutting, the chain is being oiled or tested after
repairs, or when the chain is moved to spot bits. (1) When the chain is being oiled or tested
after repairs, an operator must be at the controls ready to stop movement of the chain instantly.
When the chain is being oiled, the bar must be free of the kerf and of material that might
cause it to deflect, the person oiling must position himself before the chain is started,
the chain must run in reverse and slowly and must be stopped and the lock replaced immediately
after oiling is completed. Oiling devices or other methods that do not expose a workman to
hazard from the moving chain may be used. (2) When the chain is moved to spot bits, all persons
must be in the clear of the bar and the lock must be replaced after the chain is moved and
before the bits are spotted. (3) When the chain is operated to...
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25-9-132
Section 25-9-132 Underground transportation of explosives and detonators. (a) Individual containers
used to carry permissible explosives or detonators shall be constructed of substantial, nonconductive
material, kept closed and maintained in good condition. (b) When explosives or detonators
are transported underground by locomotive, rope, or shuttle car they shall be in covered cars
or in special containers. (1) The bodies and covers of special cars and containers shall be
constructed of nonconductive material. (2) If explosives and detonators are hauled in the
same explosives car or in the same special containers, they shall be separated by at least
a four-inch substantially fastened hardwood partition or the equivalent. (3) Where quantities
of explosives and detonators are transported in special cars or in special containers in cars,
they shall be hauled on a special trip not connected to any other trip, and shall not be hauled
into or out of a mine within five minutes preceding or...
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25-9-136
Section 25-9-136 Misfires. (a) Where misfires occur with electric detonators, the person firing
the shots shall disconnect his firing cable from the source of power and short circuit it
by reshunting the ends of the cable. No person shall return to the shot until five minutes
has elapsed from the misfire, and the firing cable must not be left behind anyone returning
to the face. (b) If a defect in the firing cable or connections is found, another attempt
may be made to fire the shot or shots, exercising such cautions as covered in Section 25-9-134,
subsection (f), subdivision (5). (c) If the misfire is definite, explosives shall be removed
by drilling and firing the bore hole for a separate charge at least two feet away from and
parallel to the misfired charge, or by washing the stemming and the charge from the bore hole
with water or by inserting and firing a new primer after the stemming has been washed out.
(d) A very careful search of the working place, and if necessary, of the...
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25-9-216
Section 25-9-216 Transportation of men. (a) Man-trips shall be operated at safe speeds consistent
with the condition of roads and type of equipment used, but not to exceed 12 miles an hour
in mine cars or 15 miles an hour when special, substantially covered man-trip cars are used.
(b) Each man-trip shall be under the charge of a responsible person and it shall be operated
independently of any loaded trip of coal or other material. (c) Cars on the man-trip shall
not be overloaded and sufficient cars in good mechanical condition shall be provided. (d)
No person shall ride under the trolley wire unless suitably covered man-cars are used. (e)
No material or tools shall be transported in the same mine car with men and all persons shall
ride inside of man-trip cars, except the motorman and brakeman or person in charge of the
man-trip. Where compartmented man-cars are used, tools or supplies, other than explosives,
secured so that they cannot cause injury to men in other compartments, may be...
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