Approved pattern or construction and approved manner of installation3.
A meter, other than a meter which is deemed to be of an approved pattern or construction under regulation 3(2) of the Measuring Instruments (EC Requirements) (Electrical Energy Meters) Regulations 19955, used for ascertaining the quantity of electricity supplied by an electricity supplier to a customer shall not be regarded as being—
(a)
of an approved pattern or construction unless a notification of approval in respect of that pattern or construction has been issued, or is deemed to have been issued, and that approval has not been revoked; or
(b)
installed in an approved manner unless a notification of approval of that manner of installation has been issued, or is deemed to have been issued, and that approval has not been revoked.