Gauge of railway and motive power
9. The railways shall be constructed on a gauge of 1.435 metres orthereabouts and the motive power shall be steam or internal combustionor such other motive power as the Secretary of State may approve:
Provided that nothing in this Order shall authorise the Council to useelectrical power as motive power unless such power is obtained fromstorage batteries or from a source of generation entirely contained inand carried along with the engine and carriages:
Provided also that if electrical power is used on the railways, such electrical power shall not be used in such a manner as to cause or be likely to cause any interference with any telecommunication apparatus as defined in the telecommunications code contained in Schedule 2 to the Telecommunications Act 1984(1) or with telecommunications by means of any suchapparatus.