This Code does not apply to;
(i) systems for distribution of energy to the public, or to power generation and transmission for such systems.
(ii) those aspects of installations in potentially explosive atmospheres relating to methods of dealing with the explosion hazard which are specified in BS 5343 and CP 1003, or in premises where the fire risks are of an unusual character so as to require special measures.
(iii) those parts of telecommunications (e.g. radio, telephone, bell, call and sound distribution and data transmission), fire alarm, intruder alarm and emergency lighting circuits and equipment that are fed from a safety source complying with clause 411.3. Requirements for the segregation of other circuits from such circuits are, however, included.
CP 5-1988 history
1988CP 5-1988 CODE OF PRACTICE FOR Wiring Of Electrical Equipment Of Buildings