Regulation 362(1) The engineering manager of a mine shall ensure that(a) an electrical installation and power line in the mine are provided with adequate protective devices and controlling equipment which, automatically isolate the power supply in the event of a fault developing on the installation or power line;(b) a switchgear used in the mine is designed in a manner that prevents it from being closed accidentally by gravity, impact or any other cause and is provided with a cover to prevent accidental contact with live parts; and(c) controlling equipment used in the mine is marked or labelled prominently so as to identify the system or part of the system or the electrical machinery which that equipment controls.(2) The engineering manager of a mine shall ensure that in the mine(a) a passageway which is not less than two metres wide is provided in front of each switchboard in each generating station on electrical switch room mine;(b) a portion of a switchboard or any of the attachments of a switchboard is not less than seven hundred and fifty millimetres from any wall if there are connections at the back of the switchboard;(c) the space between the switchboard and any wall is firmly and evenly floored and except in the case of a low-voltage switchboard, is accessible from each end through a door secured with a lock that may be opened from inside without the use of a key and is not(i) used as a store room or lumber room;(ii) obstructed in any way; or,(iii) crossed by a cable except below the floor or at a height above the floor of not less than two a and quarter metres;(d) where the supply of electricity is at a voltage that exceeds the limits of low voltage;(i) a live metal work is not placed in front of the main switchboard within two and a half metres of the floor or platform and the space provided under sub-regulation (3) is not less than two and a quarter metres in the clear; and(ii) a switch-gear does not contain oil;(e) circuit breakers are arranged in a manner that ensures that when the contact levers open outwards there is no danger of their striking a person attending to them;(f) each fuse and each automatic circuit breaker is constructed in a manner that effectually interrupts the current where (i) a short circuit occurs; or(ii) the current passing through the fuse or circuit-breaker exceeds by two hundred per cent the working current of the motors or, one hundred per cent the maximum current of the cables which the fuse or automatic circuit-breaker protects and which is permitted under these Regulations;(g) each fuse at the mine is stamped, marked or labelled in a manner that indicates the current at which it is intended to fuse;(h) each coil of fuse wire is stamped, marked or labelled in a manner that indicates the current at which it is intended to fuse; and(i) a fuse, circuit breaker or other protection device is not adjusted or replaced except by an authorised competent person.(4) The engineering manager of a mine and the person in charge of a generator station or electrical switch room in the mine shall ensure that every opening of a generator circuit breaker or generator fuse in that mine is recorded, by the person in charge of the generator station or machine room where the opening occurs, by entering the fact, date, and time of the occurrence in the registry book and signing the entry.(5) The engineering manager of a mine shall ensure that in the mine(a) each sub-circuit is protected by a fuse on each pole, but in the case of the earthed middle wire of a three-wire system the fuses may be on the outers only;(b) each circuit that has a current of more than five amperes at any voltage not exceeding extra-low voltage, or three Amperes at any voltage above extra-low voltage, is protected by (i) an automatic maximum current circuit breaker on each pole; or(ii) a detachable fuse on each pole constructed in a manner that enables it to be removed from a live circuit with a minimum risk of shock;(c) where necessary and to the extent practicable, and so that an employees is not exposed to hazards, the electricity supply to an item of plant or equipment is capable of being interrupted from a position remote from the item of plant or equipment; and(d) a person does not interfere with or render ineffective any protective device