IET Wiring Regulations, Requirements for Electrical Installations, 18th edition

The Institution of Engineering and Technology (IET) and BSI, announce the release of a Corrigendum to BS 7671:2018+A2:2022.

The Corrigendum will make changes to five areas of BS 7671 and has come into effect immediately from Monday 15 May 2023. It is available for free download from the IET and BSI.

Areas of change include:
• Regulation 422.2 has been amended to clarify the scope of the provision.
• Indent (ii) of Regulation 443.4.1 has been removed. The term safety service, formerly
included in Regulation 443.4.1 (ii), encompassed a wide range of systems. The
provision, therefore, had unintended consequences for improvements to fire safety
systems within installations.
• Table 443.2 and the Note to Regulation 534.4.1.1 have been amended to remove
examples of equipment.
• Regulation 701.1 has been amended to remove the reference to birthing pools.
• A new Regulation, 710.422.2.201, has been included in order to modify requirements
in Regulation group 422.2 for protected escape routes in healthcare facilities.

Requirements for Electrical Installations, IET Wiring Regulations, Eighteenth Edition, BS 7671:2018+A2:2022
The IET Wiring Regulations is the national standard to which all domestic and industrial wiring must conform. It is essential to all those concerned with the design, installation and maintenance of electric wiring in buildings. The 18th Edition is a major update to this title and contains extensive changes to many areas of BS 7671. The 18th Edition has been further updated to include two subsequent amendments as BS 7671:2018+A2:2022.
The IET Wiring Regulations are of interest to all those concerned with the design, installation, and maintenance of electric wiring in buildings. This includes electricians, electrical contractors, consultants, local authorities, surveyors and architects. This book will also be of interest to professional engineers, as well as students at university and further education colleges.
BS 7671:2018+A2:2022 incorporates changes from the first amendment, published in 2020, regarding Electric Vehicle Charging Installations to provide greater guidance on embracing changing technology within this sector. Additional changes within the second amendment include protection against thermal effects and fire caused by electrical equipment, protection against voltage disturbances and electromagnetic disturbances, and a new chapter on prosumer's low-voltage electrical installations covering energy efficiency measures, the interface with the smart grid, the management of electricity consumption, the management of renewable sources of electricity, and energy storage.
The 18th Edition of the IET Wiring Regulations published in July 2018 and came into effect in January 2019. Changes from the previous edition include requirements concerning Surge Protection Devices, Arc Fault Detection Devices and the installation of electric vehicle charging equipment as well as many other areas.