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

Full text
235. Where an electrical hoist transports persons in a skip or a cage-skip assembly, an auxiliary overwind device shall be installed and operated. This device shall be adjusted so as to stop the conveyance before it reaches the dumping position.
Where the auxiliary overwind device is not automatically activated by the hoistman’s signal system, it shall be installed so that the safety circuit opens when the hoistman operates the signal system.
If the auxiliary overwind device is automatically operated by the answering 3 bells of the hoistman, the circuit shall be designed so that the auxiliary overwind device does not fail if there is a defect in a relay coil.
O.C. 213-93, s. 235.