Regulation 385(1) The manager of a mine shall ensure that in the mine(a) the minimum vertical height of electrical conductors and other wires from the ground, except in the case of electric trolley wires and service lines for lighting, domestic use and telephones, complies with the Energy Commission Standards;(b) the minimum clearance requirements for the movement of vehicles and machinery under, and in the vicinity of, overhead power lines take into account the hazards of raised truck trays and raised crane booms; and (c) the following activities are not carried out in any power line corridor unless the minimum clearances required under sub-regulation (2) is assured:(i) drilling, excavation, loading, hauling or dumping;(ii) the construction, fabrication, maintenance or storage of buildings, structures, machinery and equipment; and(iii) operation of vehicles or machinery with elevating parts that do not afford the required clearance when fully raised.(2) In sub-regulation (1), "power line corridor" means(a) the area under an overhead power line that has not been properly isolated; and(b) the area of ten metres on each side of the area referred to in paragraph (a).