any premises in or upon which any electrical or supply installation may be, at all reasonable hours of the day and at any time when the electrical or supply installation is in operation.
(2) The authorised officer seeking to enter any premises under subsection (1) shall carry and produce on demand an official identification card or badge in such form as the Authority may direct.
(3) No person shall be obliged to admit into his premises any person purporting to be an authorised officer except upon production of such identification card or badge.
Authority not liable for operation of electrical or supply installation
78. Notwithstanding the grant of an electrical or supply installation licence, the Authority shall not be responsible for the operation or maintenance of any electrical or supply installation or for any injury to any person or damage to anything by reason of operating or omitting to operate or maintaining or omitting to maintain any electrical or supply installation.
Cable detection work to be carried out before earthworks
79.—(1) Subject to subsection (2), no person other than an electricity licensee shall commence or carry out, or cause or permit the commencement or carrying out of, any earthworks within the vicinity of any low voltage electricity cable which belongs to or which is under the management or control of an electricity licensee unless the person has caused cable detection work to be carried out by a licensed cable detection worker.
(2) Nothing in subsection (1) shall prohibit a person from commencing or carrying out any earthworks where he has reasonable cause to believe that it is necessary to do so in the interest of public or private safety except that the person shall, not more than 7 days after the earthworks have been commenced or carried out, give to the electricity licensee notice in writing stating the nature and extent of those earthworks.
(3) No person other than a licensed cable detection worker or an electricity licensee shall commence or carry out any cable detection work within the vicinity of any low voltage electricity cable belonging to or under the management or control of the licensee where such cable detection work is commenced or carried out in connection or
