7 CCR 1101-9-6-5 - Non-electric Initiation of Blasts
(A) Blasters
shall be familiar with and follow the manufacturer's warnings and instructions,
especially hook-up and safety precautions.
(B) Operations shall be discontinued during
the approach and progress of electrical storms.
(C) Non-electric leads shall not be held
during firing.
(D) Primary
initiators shall not be attached to the round or shot until after all the
connections have been made and the blasting area has been cleared.
(E) Non-electric delay connectors shall not
be exposed to excessive impact, friction, flame, electrical discharge, static
electricity or lightning.
(F) Delay
detonators shall not be disassembled from the plastic connector block, nor
shall the delay detonators be used without the block.
(G) Shock tube connections shall be at right
angles to detonating cord.
(H)
Connections with other initiation devices shall be secured in a manner that
provides for uninterrupted propagation.
(I) Factory made units shall be used as
assembled and shall not be cut except that a single splice is permitted on the
lead-in trunkline during dry conditions.
(J) No tool shall be used to pry on any
component containing a detonator, nor shall any tool be used to open, fasten or
clean out any connector containing a detonating device.
(K) Care shall be taken to ensure that a
vehicle is not driven over the tubing, connectors or any surface delay
component.
(L) In multiple row
blasts, the initiation system shall not be connected from row to row until all
drilling and loading has been completed. In single row blasts, the components
shall not be connected from hole to hole until all drilling and loading has
been completed.
(M) A safety line
consisting of trunkline or other non-electric tubing shall be connected to the
last hole in each row and shall extend beyond the area of cover in a covered or
matted blast and shall be used to check for complete detonation of each
row.
(N) Before firing the shot,
the blaster shall visually inspect and verify that all connections in the
initiation system are made in accordance with the manufacturer's
recommendations.
Notes
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