S-2.1, r. 4 - Safety Code for the construction industry

Section 4.7.6 Disposition versions

2015-02-26

4.7.6. The firing procedures are as follows:

(a)  before proceeding with the firing, the shot-firer must ensure with the employer that all persons have taken shelter;

(b)  sound signals must be emitted with a siren of at least 120 dB:

i.  immediately before blasting, 12 short horn signals at one-second intervals;

ii.  30 seconds must elapse between the last warning signal and the time of firing;

iii.  after blasting, once the blasting area is safe, one continuous 15-second horn signal must announce that work may be resumed in the area;

(c)  the employer must make sure that workers take shelter outside the blasting area before the first signal and that they remain there until the 15-second signal is sounded;

(d)  a code of sound signals reserved for blasting operations must be written in coloured letters 150 mm high, against a contrasting background, on a board 1.2 m high by 2.4 m wide, placed at all points of access to the work site.

R.R.Q., 1981, c. S-2.1, r. 6, s. 4.7.6; O.C. 1959-86, s. 64; O.C. 57-2015, s. 51.

2012-09-01

4.7.6. The firing procedures are:

(a)  before the order to fire is given, the shot-firer must be sure that the watchmen are at their posts and that all workers have taken shelter;

(b)  distinct signals reserved for blasting operations must be used:

i.  immediately before blasting, 12 short horn signals must be sounded at one-second intervals;

ii.  30 seconds must elapse after the last warning signal before the load is fired; and

iii.  after blasting, when the firing zone is found safe, one continuous 15-second horn signal must be sounded to signify that workers may resume work in the blasting area, after the waiting period prescribed in Subdivision 4.8;

(c)  the employer must ensure that workers have taken shelter before the first signal is given and stay there until the agreed signal for exit is given;

(d)  the signals reserved for blasting operations are written in coloured letters 150 mm high, against a contrasting background, on a board 1,200 mm high by 2,400 mm wide, placed at all points of access to the job-site.

R.R.Q., 1981, c. S-2.1, r. 6, s. 4.7.6; O.C. 1959-86, s. 64.