The three books that make up the "Electrical Installation Calculations" series show the trainee electrician how to carry out all the calculations needed for the City and Guilds 236 Certificates in Electrical Installation Competences, and similar courses leading to the award of a National Vocational Qualification (NVQ). Volume 2 contains examples covering all topics needed to satisfy the Part 2 Competences. The equation relevant to each topic is stated and then followed by worked examples together with a selection of problems and answers to give practice at the technique. Multiple choice questions are also included in most sections. Now in its fourth edition, Volume 2 has been fully revised to take account of the 16th Edition of the IEE Wiring Regulations. Tariffs, materials costs and terminology have also been updated throughout.