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Guide to the Wiring Regulations: 17th Edition IEE Wiring Regulations (BS 7671:2008)

Guide to the Wiring Regulations: 17th Edition IEE Wiring Regulations (BS 7671:2008)

Darrell Locke

ISBN: 978-0-470-99837-3

May 2008

302 pages

Select type: O-Book


Essential for electrical installers and installation designers, the IEE Wiring Regulations (BS 7671) have been completely restructured and updated for the first time in over a decade: this 17th Edition of the IEE Wiring Regulations (BS 7671: 2008) will come into effect in June 2008.  Guide to the Wiring Regulations is an authoritative and accessible guide to the 17th Edition, illustrating the changes and providing real solutions to the problems that can often occur with practical interpretation.

Written and developed by the Electrical Contractors’ Association, Guide to the Wiring Regulations brings a wealth of experience to the subject and offers clear explanations of the changes in the Standard. Starting with full coverage of the legal requirements the book then goes on to:

  • provide extensive advice on circuit design, selection and erection, wiring systems, earthing and bonding; 
  • explore the additional requirements of the Standard for protection against voltage disturbances and implementation of measures against electromagnetic influences (EMC);
  • elaborate on the alterations to the inspection and testing requirements;
  • feature practical information on the new special locations included in the 17th Edition, particularly exhibitions, shows and stands, floor and ceiling heating systems, mobile or transportable units and photovoltaic power systems;
  • highlight the changes made in the new edition to existing special locations, including bathrooms, swimming pools, agricultural and horticultural premises and caravan/camping parks.

Guide to the Wiring Regulations is an outstanding resource for all users of the 17th Edition IEE Wiring Regulations (BS 7671: 2008) including electricians who want a better understanding of the theory behind the Standard, electrical technicians, installation engineers, design engineers, and apprentices. Both trainees and practitioners will find this guide indispensable for understanding the impact of the changes introduced in the 17th Edition (BS 7671: 2008).

Additional supporting material is available at




A - BS 7671: 2008 Introduction and Overview

A1 Introduction to BS 7671: 2008

A2 Plan and Layout of BS 7671: 2008

A3 Overview of Major Changes

B - Legal Relationship and General Requirements of BS7671: 2008

B1 Legal Requirements and Relationship

B2 The Role of Standards

B3 Part 3 of BS 7671: 2008, Assessment of General Characteristics

C - Circuitry and Related Aspects

C1 Introduction

C2 Design Procedure Overview

C3 Load Assessment

C4 Circuitry Design

C5 Sub-mains

C6 Discrimination Co-ordination

C7 Parallel Cables

C8 Harmonics

C9 Standard Circuits Designs

C10 RCD Circuitry

C11 Ring and Radial Final Circuits

D - Selection and erection - equipment

D1 Introduction and Fundamentals

D2 Compliance with Standards

D3 Identification of Conductors

D4 EMC and Detrimental Influences

D5 Wiring Systems

D6 Circuit Breakers


D8 Other Equipment

D9 Generating Sets

D10 Rotating Machines

D11 Plugs and Sockets, Cable Couplers

D12 Water Heaters

D13 Heating Conductors

D14 Lighting and Luminaires

D15 Safety Services

D16 Ingress Protection

E - Earthing And Bonding

E1 Introduction

E2 Earthing Arrangements

E3 General Requirements of

Earthing and Bonding

E4 Protective Conductors

E5 Armoured Cables

E6 Protective Equipotential Bonding

E7 High Earth Leakage Instalations

F - Inspection And Testing

F1 Introduction

F2 Visual Inspection

F3 Testing

F4 Certification Paperwork

G - Special Locations

G1 Introduction Purpose and Principles

G2 Locations Containing a Bath or Shower

G3 Swimming Pools and Other Basins

G4 Agricultural and Horticultural Premises

G5 Caravan Parks and Camping Parks

G6 Exhibitions, Shows and Stands

G7 Solar Photovoltaic (PV) Power Supply Systems

G8 Mobile or Transportable Units

G9 Floor and Ceiling Heating Systems