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

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289. A hoisting rope installed on a friction hoist shall have a safety factor when new of at least 5.5, or, as calculated according to the following formula, taking the highest possible value:
Safety factor = 9.5 - 0.00246 L
(L being the maximum length in metres of rope suspended below the pulley).
O.C. 213-93, s. 289.