Australian Capital Territory Numbered Regulations Australian Capital Territory Numbered Regulations(1) This regulation applies if a shotfirer uses safety fuse in a blasting operation.
(2) The shotfirer must ensure that—
(a) before the fuse is used—
(i) a sample of at least 1m is burnt to work out the burning rate of the fuse; and
(ii) the burning rate of the sample is between 90 and 120 seconds per metre; and
(b) sufficient fuse (of at least 1m) is used to enable the shotfirer to withdraw to a safe place without undue haste after the fuse has been ignited; and
(c) the end of the fuse to be inserted into the detonator is clean and cut square, and inserted into the detonator by pushing gently without twisting; and
(d) detonators are crimped on the fuse with a crimper; and
(e) the fuse is not ignited until—
(i) the charge has been fully inserted into the blast hole; and
(ii) all necessary stemming and tamping has been completed; and
(iii) if applicable, an effective means of screening the blast is in position; and
(f) if more than 1 fuse is to be ignited at any single firing—
(i) only a safety fuse igniter approved for igniting more than 1 fuse is used; and
(ii) no more than 8 fuses are ignited at any single firing location, unless igniter cord or an electrical igniter approved by an inspector is used; and
(iii) the firing of charges is arranged to enable the number of explosions to be accurately counted from safe locations.
(3) If the shotfirer has any doubt about the number of charges that have exploded, the shotfirer must—
(a) assume that there has been a misfire; and
(b) comply with the requirements of division 2.9.11 (Misfire precautions).
(4) If 2 or more shotfirers fire explosives near each other, the shotfirers must arrange the order of firing to avoid confusion in counting the number of explosions.