S-2.1, r. 13 - Regulation respecting occupational health and safety

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312.30. Protection against electrical hazards: Electric voltage of devices, equipment and tools used underwater must not exceed 110 V in direct current or 42 V in alternating current.
Those devices, equipment and tools must be
(1)  insulated;
(2)  equipped with a shut-off switch;
(3)  equipped with a ground fault detector if the power supply is alternating current from the public network or its equivalent; and
(4)  grounded, in the case of equipment.
O.C. 425-2010, s. 3.