(1)  An authorised officer –

(a) may inspect, or cause to be inspected, any electrical work; and

(b) must, as far as practicable, inspect, or cause to be inspected, any electrical work of high voltage or in a hazardous area.

(2)  Subregulation (1)(b) does not apply –

(a) in a case where an electricity entity is performing electrical work of high voltage on its own electrical infrastructure; or

(b) where the electrical work performed involves, in the course of carrying out repairs, the replacement of a component part with another component part performing substantially the same function.

(3)  For the purposes of subregulation (1) , an authorised officer may require an electrical contractor to open, or cause to be opened, a trench.