Section 198(g) in The Coal Mines Regulations, 2011
(g)during the approach and progress of an electric storm,-(i)no explosive or detonators shall be handled;(ii)if loading or charging operations have begun, the work shall be discontinued until the storm has passed;(iii)if the shots are to be tired electrically, all exposed wires shall be coiled up and if practicable, placed in the mouths of the holes or kept covered with non-metallic objects;