Section 159(7) in The Coal Mines Regulations, 2011
(7)The manager or the person authorised or the senior official, referred to in the sub-regulation (6), on being informed or coming to know of the stoppage of a mechanical ventilator or a booster fan, shall decide about disconnecting electric supply to the mine and the extent of such disconnection and the details of such disconnection shall be entered in the bound paged book-kept for the purpose:Provided that in the case of stoppage of the mechanical ventilator or the booster fan, the electrical supply or the other source of drive to any auxiliary fan, if, installed, shall be disconnected immediately by an arrangement of sequence control, or other effective arrangement.
