S-2.1, r. 14 - Regulation respecting occupational health and safety in mines

Section 461 Disposition versions

2012-09-01

461. Where a common source of electric power is used to set off explosive charges at more than one work site, the following standards shall be respected:

(1)  the short circuit of the main blasting line may not be interrupted before blasting;

(2)  a 3-position switch shall be provided for each firing circuit; the switch shall be locked either in the short-circuit position or in the closed position, making it possible to:

(a)  short-circuit the circuit;

(b)  power the circuit;

(c)  test the circuit;

(3)  the blasting lines and blasting switches shall be identified with a tag and the switches shall bear an inscription allowing them to be identified.

O.C. 213-93, s. 461.