Further guidance is available from the following sources:
· IET (Institution of Engineering and Technology) at [http://www.iee.org/publish/wireregs/partp.cfm](http://www.iee.org/publish/wireregs/partp.cfm)
· the NICEIC (National Inspection Council for Electrical Installation
· Contracting) at [www.niceic.org.uk](http://www.niceic.org.uk/);
· the ECA (Electrical Contractors’ Association) at [www.eca.co.uk](http://www.eca.co.uk/).