The Quarries (Explosives) Regulations 1988

Shotfirer’s duties

8.—(1) A shotfirer at a quarry who is to fire a shot or supervise the firing of a shot shall ensure so far as is reasonably practicable that each stage of the shotfiring operation is carried out safely and in accordance with the rules required to be made in pursuance of regulation 5(2)(b) and any specification required to be approved in pursuance of regulation 5(2)(c).

(2) Before a shot is fired electrically, a shotfirer shall—

(a) where a transformer coupled electric detonator is not used, ensure that the electric detonator is connected in series and test the circuit for continuity and electrical resistance with an ohmmeter suitable for the purpose from a safe place; or

(b) where a transformer coupled electric detonator is used, test the primary loop wire of the circuit for continuity and check the circuit for electrical impedance with an instrument suitable for the purpose; and

(c) in either case, ensure that the electrical resistance or impedance of the shotfiring circuit is such as to make a misfire unlikely; and

(d) ensure that the shot is fired from a safe place.

(3) No person shall fire a shot other than by means of a suitable exploder or suitable safety fuse.

(4) No person shall cap safety fuse with a detonator unless he is using crimpers designed for the purpose and he is in a suitable sheltered place designated by the manager for the purpose.