Australian Capital Territory Numbered Regulations Australian Capital Territory Numbered Regulations(1) This regulation applies if a shotfirer uses a signal tube to initiate a blasting operation.
(2) The shotfirer must ensure that—
(a) all connections are carried out in accordance with the manufacturer's instructions; and
(b) all connections are checked before initiating a blast; and
(c) if possible, all fired signal tube is cleared from the blast site after the blast has been completed.
(3) If both trunk and branch lines are used, the blast must be initiated in a trunk line.
(4) A shotfirer must ensure that the firing position where the shotfirer initiates the signal tube is located outside the range of, or is adequately shielded from, any missile or other blast effect that may be produced by the blast.
(5) In this regulation:
"branch line" means a length of signal tube running between, and connected to, the trunk line and the primer.
"trunk line" means the main line of signal tube on the surface.