124Direct contact with exposed high voltage electrical equipment

124 Direct contact with exposed high voltage electrical equipment (1) A person must not perform work by direct contact with exposed high voltage conductors or exposed parts of high voltage electrical equipment unless the exposed high voltage conductors or exposed parts of high voltage electrical equipment are: (a) shown by testing to be isolated from all sources of electricity (b) earthed. (2) If the conductor or equipment cannot be directly contacted to prove isolation from all sources of electricity supply, it is sufficient for compliance with subregulation (1) if: (a) written instructions are given for the isolation of the conductor or equipment from all sources of electricity supply; and (b) the conductor or equipment is earthed by a lockable earthing switch designed to be safely operated if the high voltage conductor or equipment is not isolated from all sources of supply.