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    Requirements for Electrical Installations, 18th edition by The IET

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    BS 7671:2018 Requirements for Electrical Installations, IET Wiring Regulations 18th Edition

    The NEW 18th Edition of the IET Wiring Regulations is a major update to this title, with changes expected to include an entirely new section, Part 8, Energy Efficiency. The IET Wiring Regulations book is vital for all involved in the electrical industry, including designers, installers, and those involved in testing and inspection of electrical installations. The requirements of Electrical Installations come into effect on 1st January 2019.

    What the NEW IET Wiring Regulations 18th Edition Includes

    Transient over voltages

    Arc fault detection

    New requirements around RCDs

    Embedded electric heating systems for surface heating

    EV Charging

    New Section 730 concerning Inland Navigation Vessels

    Energy Efficient design recommendations

    Important Notes

    Installations designed after the 31st December 2018 MUST comply with BS 7671:2018

    The regulations apply to the design, erection and verification of electrical installations, as well as additions or alterations to existing installalations.

    Amendments within the 18th Edition Regulations

    Part 1 Scope - object and fundamental principles:

    Regulation 133.1.3 (Selection of equipment) now requires a statement on the Electrical Installation Certificate.

    Part 2 Definitions:

    Has been modified and expanded.

    Chapter 41 Protection against electric shock:

    Section 411 conatons a number of significant changes, including two new regulations.

    Chapter 42 Protection against thermal effects:

    Includes a new regulation as well as a redraft of Regulation 422.2.1

    Chapter 44 Protection against voltage disturbance and electromagnetic disturbances:

    This chapter has been redrafted.

    Chapter 46 Devices for isolation and switching:

    This is a new chapter introduced for the latest 18th edition revision.

    Chapter 52 Selection and erection of wiring systems:

    Contains a new regulation and modifications to existing regulations.

    Chapter 53 Protection, isolation, switching, control and monitoring:

    This chapter has been completely revised.

    Chapter 54 Earthing arrangements and protective conductors:

    This includes four new regulations.

    Chapter 55 Other equipment:

    Contains a new regulation.

    Part 6 Inspection and testing:

    This part has been completely restructured and modified.

    Section 704 Construction and demolition site installations:

    This section contains a few small changes.

    Section 708 Electrical installations in caravan/camping parks and similar locations:

    This section contains anumber of changes.

    Section 710 Medical locations:

    Includes a new regulation and a number of small changes.

    Section 715 Extra-low voltage lighting installations:

    Contains only a few minor changes.

    Section 721 Electrical installations in caravans and motor caravans:

    This section includes a number of changes.

    Section 722 Electric vehicle charging installations:

    Significant changes within this section.

    Section 730 Onshore units of electrical shore connections for indland navigations vessels:

    This is a completely new section.

    Section 753 Floor and ceiling heating systems:

    This section has been completely revised.

    Appendices Changes

    Appendix 1

    Appendix 3

    Appendix 6

    Appendix 7

    Appendix 8

    Appendix 14

    New Appendix Added

    Appendix 17 Energy efficiency.


    A 3 book bundle is available which includes the Requirements for Electrical Installations, wiring Regulations 18th Ed, Inspection & Testing Guidance Note 3 8th Ed and the On Site Guide 18th Ed. Please see stock number 1793977 for this most up to date 3 book offer.


    TitleRequirements for Electrical Installations
    Date of PublicationJuly 2018
    AuthorThe IET
    PublisherThe IET
    Number of Pages648
    13 Digit ISBN978-1-78561-170-4
    207 In stock - FREE next working day delivery available
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