789. Shotfiring equipment at stratified ironstone, shale and fireclay mines.

Subject to a power of exemption1, the equipment which must be provided for each shotfirer at a mine of stratified ironstone, shale or fireclay other than a safety-lamp mine who is to fire shots electrically is specified2, and no person may fire a shot by means of electric shotfiring apparatus or cable not provided by the owner3, or which is not of a specification approved by the Health and Safety Executive4. A shotfirer in charge of electric shotfiring apparatus must keep the removable handle or key in his possession and removed from the apparatus except when he is about