For students taking NVQs in electrical installation and electrical contractors, electricians, other technicians requiring a working knowledge of domestic wiring This book is the standard how-to guide for the practical aspects of domestic electrical wiring. Now fully up-to-date with the new Regulations and covering the latest best practice, it includes expert advice supported with colour diagrams, examples and key data. It is a vital reference both for students and professionals whose work demands knowledge of electrical installation, such as domestic nstallers and architects.