Person
engaged in preparing charges not to carry matches, etc.
Removal of explosives for blasting.
Preparing of clurges for blasting.
Loading of charges for blasting.
Firing of charges for blasting.
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51. No person engaged in preparing charges or handling explosives at any blasting site shall carry about his person any metal object or other articles intended or liable to create flame or sparks except such articles as are required by him expressly for the purpose of igniting fuses.
$2. (1) When removing explosives from a store at a blasting site for the purpose of blasting-
(a) gunpowder shall be placed in a container fitted with a close- ülting lid and made of rigid. impermeable, non-ferrous material; and
(b) detonators and fuse shall not be carried in the same container
as other explosives.
(2) No explosives shall be removed from any store for blasting except under the personal supervision of an authorized shot firer.
(3) Any explosive not used or destroyed shall be returned to the store on completion of the blasting.
53. When charges are prepared for blasting-
(a) detonators shall not be crimped on to fuse in or near any
explosives store:
(6) detonators shall not be crimped to fuse otherwise than with a
crimping tool;
(c) not more than one detonator shall be inserted in any primer
charge:
(d) do hole shall be made in any cartridge of explosive otherwise
than by the use of a non-ferrous pricker.
54. When charges are loaded for blasting-
(a) cartridges shall not be unwrapped from their paper coverings: (b) tamping rods shall be of non-ferrous material and shall be cut
off square at the ends;
(c) not more than one person shall work on the tamping of any
one charge at any one time.
55. (1) When blasting is carried out-
(a)
save as provided in sub-paragraph (1) of paragraph (1) of regulation 57, blasting shall be done by means of bore hole charges only and no surface charges shall be used except with the permission of the Authority:
(b) no bore bole shall be loaded with more than such quantity of explosive as shall be determined by the shot firer in each particular case;
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(c) no blast shall be fired unless effective and adequate precau- tions are taken to prevent any fragments being projected in a dangerous manner;
(d) where two or more bore holes have been drilled along a rock face and the depth of any such hole exceeds six feet, all blasting shall be done simultaneously;
(e) warning signals within a radius of not less than five hundred feet from the point of blasting shall be made by the displaying of red flags and by the beating of gongs for not less than five minutes previous to the firing of any blast and shall continue until all the charges have been fired:
( no fuse of less than two minutes burning time (four feet of
standard safety fuse) shall be used;
(e) if matches are used to light fuses, not more than two fuses shall be lit by any one person at any one time, and if two fuses are so lit, the first fuse lit shall be of not less than three minutes burning time (six feet of standard safety fuse):
(A) if fuses are to be lit in a series by means of an acetylene lamp, there shall not be more than eight fuses in each such series and each fuse of the series shall be longer than the preceding fuse by not less than fifteen seconds burning time (six inches of standard safety fuse) and the person using the lamp shall be accompanied by another person having a box of matches or other suitable means of immediately relighting the lamp if it should go out, and the fuses shall be lit seriatim commencing with the longest fuset
() if an igniting squib is used to light fuses the rules for igniting by an acetylene lamp contained in sub-paragraph (4) shall apply except that in this case not more than ten fuses may be lit from one squib!
(no dynamite or home made igniting squibs shall be used to
light fuses;
(k) any electric exploder used for firing charges shall be fitted with a detachable handle or key and shall be so designed as to prevent unauthorized use, the leads to the exploder or firing switch shall not be connected until the shot firer has tested the circuit with a galvanometer, or until immediately before firing takes place, the exploder shall be set in a position where the shot firer can see it while he is connecting the charges and the shot firer shall carry with him the detachable handle or key of the exploder while he is so connecting the charges;
(0) no electric mains shall be used for firing except with the permission of the Authority; and when so used the switch controlling the circuit shall be contained in a box so arranged
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