§ 30-2-604 — Requirements as to surface magazines; storage of explosives; explosion-proof illumination; use of nonmetallic tools

Wyoming § 30-2-604

• Jurisdiction: Wyoming
• Title 30: Mines and Minerals
• Ch. 2: MINING OPERATIONS
• Art. 6: EXPLOSIVES AND FLAMMABLES

Text

(a) Separate surface magazines shall be provided for the
storage of explosives and detonators.
(b) Surface magazines for storing and distributing high
explosives shall be:
(i) Reasonably bulletproof and constructed of
incombustible material or covered with fire-resistive material.
The roofs of magazines so located that it is impossible to fire
bullets directly through the roof from the ground, need not be
bulletproof, but where it is possible to fire bullets directly
through them, roofs shall be made bullet-resistant by material
construction, or by a ceiling that forms a tray containing not
less than a four (4) inch thickness of sand, or by other
methods;
(ii) Provided with doors constructed of three-eighths
(3/8) inch steel plate lined with a two (2) inch thickness of
wood, or the equivalent;
(iii) Provided with floors made of wood or other
nonsparking material and have no metal or gravel exposed inside
the magazine;
(iv) Provided with suitable warning signs so located
that a bullet passing directly through the face of a sign will
not strike the magazine;
(v) Provided with properly screened ventilators.
Equipped with no openings except for entrance and ventilation;
(vi) Kept locked securely when unattended.
(c) High explosives may also be stored in box-type
distributing magazines which shall be constructed and used in
accordance with rules established by the inspector.
(d) Main storage magazines shall be not less than one
thousand (1,000) feet from any mine opening unless effectively
barricaded.
(e) The supply kept in distributing magazines shall be
limited to approximately one (1) day's requirements. Supplies of
explosives and detonators may be distributed from the same
magazine, if separated by at least a four (4) inch substantially
fastened hardwood partition or the equivalent.
(f) The area surrounding magazines for not less than
twenty-five (25) feet in all directions shall be kept free of
rubbish, dry grass, or other materials of a combustible nature.
(g) If the explosives magazine is illuminated
electrically, the lamps shall be of explosion-proof type,
installed and wired so as to prevent minimum fire and contact
hazards.
(h) Only nonmetallic tools shall be used for opening
containers. Extraneous materials shall not be stored in an
explosives or detonator magazine.
(j) Smoking, carrying smoker's articles, or open flame
shall be prohibited in or near any magazine.
(k) Blasting agents shall be used and stored in accordance
with rules established by the inspector.
(m) Contents stored in magazines pursuant to this section
shall be inventoried once a month or after each use.