"electrical wiring work"—
(a) means the installation, replacement, augmentation, curtailing, maintenance, repair, or alteration of the location of all or part of, an electrical installation, other than—
(i) an electrical installation that operates at extra low voltage; or
(ii) telecommunications cabling or equipment that operates at a voltage not greater than 90V a.c.; but
(b)
does not include—
(i) plugging a plug into a socket outlet, or unplugging it; or
(ii)
fitting a lamp to a lighting outlet or removing it; or
(iii) fitting, removing or replacing a fuse or fuse wire if the fuse or wire cannot sustainedly
conduct more than 30A.