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

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330. Where a skip equipped with a tipper tub or a door protruding out of the shaft compartment leaves its dumping point while the locking mechanism of its unloading device is not locked, a switch installed under the dumping point of the skip shall suppress the driving power of the hoist and cause it to brake.
O.C. 213-93, s. 330.