Regulation 40 Meaning of miss-fire

(1)

A shot shall be treated as a miss-fire if it fails to explode, in the case of a shot being fired—

(a)

by fuse, after the shot firer or person appointed to fire shots by fuse (as the case may be) has withdrawn after once lighting or attempting to light the fuse; or

(b)

electrically, and either as a single shot or in a round, after the shot firer, having attempted unsuccessfully to fire the shot, has followed the procedure described in paragraph (2) of this regulation.

(2)

The said procedure is that the shot firer shall—

(a)

disconnect from the shot firing apparatus the removable handle or key and the shot firing cable;

(b)

after waiting five minutes, examine the cable and connections for any defect, and remedy any defect so found;

(c)

make a further attempt to fire the shot (for which purpose, in the case of a shot being fired as a single shot in any part of a mine to which Part VIII of these regulations applies, he may, notwithstanding the provisions of regulation forty-seven, use shot firing apparatus of a specification approved by the Minister for multi-shot firing with all explosives).