PART XIX GENERAL BLASTING — Seismic blasting
441
(1) Where seismic blasting is carried out in an isolated location, loaded holes may be left unattended only where the blaster has first ensured that
441(a)
leg wires are shunted together; it cannot be conventionally and safely detonated; the distance between the heat tube and the outside of the tank is at least 35 centimetres; bypassing the hole is not practicable;
441(b)
drill cuttings are spread out and levelled; it is in an isolated location and at least 6 metres deep; and the heater, where woodburning, has a fire box of a type that fully contains the fuel and 2 dampers mounted in the heat tube, one at the vent end and the other at the fire box, so the flame may be shut in instantaneously in the event of an accident; and operational planning minimizes the requirement to travel through a loaded area;
441(c)
leg wires are coiled as close to the ground as possible while not exceeding 15 centimetres above the ground level; and its location is effectively marked. the detonator storage is located on the opposite side of the vehicle from the explosive magazine and both are built to type 6 magazine standard. safe work procedures are developed and communicated to workers before work is started;
441(d)
holes are suitably user identified, recorded in the blasting log and blasted within 30 days. loaded holes comply with subsection (1);
441(2)
In a seismic blasting operation the firing line may be left connected to the firing switch and disconnected at the hole where a recorder can confirm complete detonation.
441(3)
A misfired or unfired charge in a seismic blasting operation, may be left unfired only where
441(4)
A seismic water tank truck with open flame water heaters shall not be used to transport explosives unless
441(5)
In a seismic operation where there is no alternate route, a vehicle may be driven over a loaded hole where
441(e)
explosive charges are at a minimum depth of 6 metres;
441(f)
radio transmission equipment is turned off or transmission capability is disabled by disconnecting the microphone; and
441(g)
electrical equipment, including cellular phones and other types of mobile telephone equipment which continuously transmit a radio signal when turned on shall be turned off when driving over a loaded hole.
Not legal advice. Verify the cited article against the signed agreement.