Installation electricians, designers, and BTEC/NVQ students.
The mechanics of safe earthing systems to guard occupants against fault currents.
An invaluable companion to college studies and NVQ portfolios. Electricians Guide Fifth Edition By John Whitfield
His books serve as a bridge between classroom theory and real-world site conditions. Whether you are calculating cable sizes under pressure or designing a complex three-phase distribution system, Whitfield’s structured explanations provide immediate clarity. Key Core Themes and Structure
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John Whitfield has built a reputation for translating the complex, often dense language of the IET Wiring Regulations (
Enhanced detail on when SPDs are mandatory according to current regulations. His books serve as a bridge between classroom
“Whitfield's credentials are impressive, and for practical, on-site use, the Electrician's Guide can be recommended.” Who is it for? Apprentices and Students
As of 2026, the industry is operating under the , often called the " Orange Book ", and the 17th edition has been superseded.
The is widely recognized as a definitive, accessible resource for applying the UK’s complicated IEE/IET Wiring Regulations (BS 7671).