This well established handbook, written and sponsored by the Electrical Contractors' Association and Select (formerly the Electrical Contractors' Association of Scotland), provides a detailed, authoritative guide to the Wiring Regulations, BS 7671: Requirements for Electrical Installations. As the regulations are not drafted by topic, the handbook will be particularly useful in guiding designers, installers, inspectors and testers round the various requirements. It gives practical guidance on how to approach new installations, extensions to existing installations, and the more