The first three of your list are all that apply -
The exact wording of the law - interpret as you may.
(a) the installation of a new circuit;
(b) the replacement of a consumer unit; or
(c) any addition or alteration to existing circuits in a special location.
The exact wording of the law - interpret as you may.
(a) the installation of a new circuit;
(b) the replacement of a consumer unit; or
(c) any addition or alteration to existing circuits in a special location.