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

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312. The diameter of the pulley of the friction hoist may not be less than 80 times the diameter of the hoisting rope except when a locked-coil wire rope is used, in which case the diameter of the pulley may not be less than 100 times the diameter of the locked-coil wire rope.
O.C. 213-93, s. 312.