This highly successful book is now updated in line with the Amendment 2-2022 of 18th Edition of the Wiring Regulations. It provides a topic-by-topic progression through the areas of electrical installations, including how and why electrical installations are designed, installed and tested. This tenth edition contains new material on batteries, LED and ELV lighting, data cabling and renewable electricity generation and distribution, with some focus on medical locations, and a glossary of terms. The guidance on tools used and safety legislation has also been brought up to date.

Brian Scaddan’s subject-led approach makes this a valuable resource for professionals and students on both City & Guilds and EAL courses. This approach also makes it easy for those who are learning the topic from scratch to get to grips with it independently of any particular course.

The book is widely used in education and training across the UK and has been published for almost 40 years.

chapter Chapter 1|9 pages

Basic Information and Calculations

chapter Chapter 2|10 pages


chapter Chapter 3|14 pages

Resistance, Current and Voltage, Power and Energy

chapter Chapter 4|21 pages


chapter Chapter 5|5 pages

Capacitors and Capacitance

chapter Chapter 7|5 pages

Three-Phase Circuits

chapter Chapter 8|22 pages

Motors and Generators

chapter Chapter 9|7 pages

Cells and Batteries

chapter Chapter 10|10 pages

Illumination and ELV Lighting

chapter Chapter 11|14 pages

Electricity, the Environment and the Community

chapter Chapter 12|18 pages

Health and Safety

chapter Chapter 13|9 pages

The Electrical Contracting Industry

chapter Chapter 14|19 pages

Installation Materials and Tools

chapter Chapter 15|28 pages

Installation Circuits and Systems

chapter Chapter 16|12 pages

Earthing and Bonding

chapter Chapter 17|13 pages


chapter Chapter 18|12 pages

Circuit and Design

chapter Chapter 19|22 pages


chapter Chapter 20|9 pages

Basic Electronics Technology