7(1)If the relevant undertaker or any of his agents—
(a)executes any works without the notice required by paragraph 2 above having been given, or
(b)fails without reasonable excuse to comply with any reasonable requirement of the operator under this Schedule,
he shall be guilty of an offence.
(2)A person guilty of an offence under this paragraph shall be liable on summary conviction to a fine which—
(a)if the service provided by the operator’s system is interrupted by the works or failure, shall not exceed level 4 on the standard scale; and
(b)if that service is not so interrupted, shall not exceed level 3 on the standard scale.