Deals with the theory and practice of the safe design, installation and operation of industrial electrical equipment. This third edition incorporates revisions that cover the Electricity at Work Regulations (1989), EC directives on safety matters and many recent developments in safety legislation and guidance publications. The text is based on the two earlier editions of the book written by W. Fordham Cooper, who has experience as HM Electrical Inspector of Factories and later as a consultant to the Insurance Technical Bureau. The book is revised and updated for the third edition by D.A. Dolbey Jones, who, as an HM Senior Electrical Inspector with the Health and Safety Executive, was responsible for steering the project on the Electricity at Work Regulations and the official Memorandum of Guidance on the Regulations; he then joined the Department of Energy (now the DTI) as a Senior Engineering Inspector. Published guidance and other useful reference material is signposted throughout the book. Two new appendices deal with essential up-to-date publications.