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

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170. Before a worker leaves the place where welding torch or electric arc work was carried out, the following standards shall be repeated:
(1)  any hot particles or sources of heat that could cause a fire shall be eliminated;
(2)  the timbering and combustible materials shall be sprayed when the ambient temperature is above the freezing point and there is no electrical equipment; otherwise there shall be no risk of fire.
O.C. 213-93, s. 170.