PART XXXIII USE OF ELECTRICITY IN MINES — Quick connect cable couplers
689(g)
a disconnecting device placed less than one metre from the receptacle.
689
(1) A quick connect coupler used to join portable cables or a cable and a flange mount receptacle, operating at a voltage in excess of 300 volts shall have
689(a)
a mechanical fastening arrangement, to join the coupler, with a tensile strength greater than that of the portable power cable;
689(b)
strain relief devices suitable for the intended portable power cable;
689(c)
a means to prevent the ingress of moisture;
689(d)
a means to mechanically lock the coupler, where the circuit voltage exceeds 750 volts;
689(e)
a pin arrangement that
689(i)
the ground conductor makes before and breaks after the phase conductors, and (ii) the ground check circuit makes after and breaks before the phase conductors;
689(f)
ground fault protection and ground conductor monitoring at the source of supply; and
689(2)
A disconnecting device shall be used to de-energize the receptacle before a plug is connected or disconnected.
Not legal advice. Verify the cited article against the signed agreement.