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BS 7671 and guidance

Digital Wiring Regulations Packages

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BS 7671:2018+A4:2026, IET Wiring Regulations 18th Edition, Requirements for Electrical Installations (Orange Book)

The IET Wiring Regulations is the national standard to which all domestic, commercial and industrial electrical installations are to conform. It is essential to all those concerned with the design, installation and maintenance of electrical installations. Amendment 4:2026 to BS 7671:2018 is a major update to this title and contains extensive changes to many areas of the standard.

Pre-order BS 7671:2018+A4:2026 in print

On-Site Guide (BS 7671:2018+A4:2026) 9th Edition

The On-Site Guide is an essential guide to BS 7671. It enables the competent installer to deal with installations (up to 100 A, 3-phase) providing information in a convenient, easy-to-use format. This publication has been updated to include all four amendments to the 18th Edition and aligns with BS 7671:2018+A4:2026 The IET Wiring Regulations.

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Guidance Note 1: Selection & Erection, 10th Edition

Guidance Note 1: Selection & Erection is a fundamental guide for specifiers, installers and those inspecting and testing installations. It contains clear guidance on how to apply the relevant sections of BS 7671 and has been fully updated to BS 7671:2018+A4:2026.

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Guidance Note 2: Isolation & Switching, 10th Edition

Guidance Note 2: Isolation & Switching provides clear guidance on what can be a confusing aspect of BS 7671. It is ideal for those working in design, testing and inspection and maintenance and operational aspects and has been fully updated to BS 7671:2018+A4:2026.

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Guidance Note 3: Inspection & Testing, 10th Edition

Guidance Note 3: Inspection & Testing is a fundamental guidance book for all those involved with the testing and inspection of electrical installations. It also contains essential guidance for those studying for inspection and testing qualifications and has been fully updated to BS 7671:2018+A4:2026.

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Guidance Note 4: Protection Against Fire, 10th Edition

Guidance Note 4: Protection Against Fire is a vital guide to an important safety aspect of working with electricity. It is aimed at everyone involved with fire safety in electrical installations, including consulting engineers, electrical installers, inspectors, maintenance electricians and technicians and has been fully updated to BS 7671:2018+A4:2026.

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Guidance Note 5: Protection Against Electric Shock, 10th Edition

Guidance Note 5: Protection Against Electric Shock provides a core element of safety for specifiers, designers, contractors and inspectors. It includes clear guidance on how to apply the safety requirements of BS 7671 concerning electric shock and has been fully updated to BS 7671:2018+A4:2026.

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Guidance Note 6: Protection Against Overcurrent, 10th Edition

Guidance Note 6: Protection Against Overcurrent is a key guide to this important area of BS 7671. It is intended for all involved with specifying, designing, installing or verifying electrical installations and has been fully updated to BS 7671:2018+A4:2026.

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Guidance Note 7: Special Locations, 8th Edition

Guidance Note 7: Special Locations provides a comprehensive guide to the various special locations and installations for which additional measures are required to comply with BS 7671 and has been fully updated to BS 7671:2018+A4:2026.

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Guidance Note 8: Earthing & Bonding, 6th Edition

Guidance Note 8: Earthing & Bonding provides guidance for all generally applied methods of protection against electric shock in BS 7671 and key information from BS 7430 Code of Practice for Earthing. It covers key guidance for all involved with specifying, designing, installing or verifying electrical installations and has been fully updated to BS 7671:2018+A4:2026.

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Electrician’s Guide to the Building Regulations, 7th Edition

Electrician's Guide to the Building Regulations includes the latest guidance relating to competent person schemes, third-party certification and covers relevant parts of the Building Regulations, including Fire Safety, Ventilation and Conservation of Energy. This guide has been fully updated to BS 7671:2018+A4:2026.

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Electrical Installation Design Guide, 6th Edition

Calculations for Electricians and Designers  

Electrical Installation Design Guide: Calculations for Electricians and Designers provides step-by-step guidance on the design of electrical installations. The guide will be useful to all persons designing electrical installations, also for apprentices and trainees carrying out the calculations necessary for a basic installation and has been fully updated to BS 7671:2018+A4:2026.

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