On-Site Guide (BS 7671:2018+A2:2022) (Electrical Regulations)

Product Information

Minor changes have been made including reference to prosumers electrical installations and installing fibre optic cables. Part 2 - Definitions Regulation 717.411.4 has been expanded to take account of PME. Section 722 - Electric vehicle charging installations A note has been added clarifying that where non-metallic pipes, e.g. plastic, enter the building and are then connected to metallic pipes within the building, the metallic pipes within the building do not normally require protective bonding as they are unlikely to be extraneous-conductive-parts. Reference to insulating sections has been removed. This section includes changes to automatic disconnection of supply and additional protection. Section 717 - Mobile or transportable units

Provides a concise outline of the new IET Wiring Regulations 18 th Edition and BS 7671:2018 Requirements for Electrical Installations damage caused by any error or omission in the work, whether such an error or omission is the resultNOTE 1: Completion of an electrical installation designed to the withdrawn standard can be subject to the contractual agreement between all parties involved. The layout and structure of the guide is extremely similar to the full version. A numbering system is in-play, and, although the level of detail is reduced, users can still find the location of information in the same way. It’s also important to note that some information included is not referenced in the main 18th edition bs7671. It is therefore advisable that both documents are read thoroughly, and notes are made of key differences. Appendix 4 includes minor changes concerning a cable surrounded by thermal insulation. Appendix 6 Model forms for certification and reporting

Regulation 411.3.1.2 has been redrafted. The regulation now requires that in each consumer’s installation within a building extraneous-conductive parts that are liable to introduce a dangerous potential difference be connected to the main earthing terminal. This is an entirely new chapter. Historically, utility companies have managed the public transmission and distribution network from the point of view of having central production adapted to demand variation. The objective of this chapter is to provide requirements, such that, low-voltage electrical installations are compatible with the current and future ways to deliver safely the electrical energy to current-using equipment either from the public network or from other local sources. Regulation 422.1 (precautions where particular risks of fire exist) now introduces requirements for the fire safety design of the building(s) to be documented. Also, requirements have been added where cables should have an improved fire performance. Regulation 531.3.3 now states that RCD Type AC shall only be used to serve fixed equipment, where it is known that the load current contains no DC components. Chapter 54 - Earthing arrangements and protective conductors

Regulation 16 Regulations, BS 7671, must comply with all relevant statutory regulations, such as the Domestic and similar installations, including off-peak supplies, supplies to associated garages, outbuildings and the like; and

This book only includes immediately relevant information, such as updates for work on single- and three-phase systems up to 100ARegulation, 702.414.3, concerning SELV and PELV, has been introduced. Section 703 - Rooms and cabins containing sauna heaters writing of the publishers, or in the case of reprographic reproduction in accordance with the terms of Regulation 514.12 (Notices: periodic inspection and testing) now contains an exception for domestic (household) premises in certain situations. As alluded to, the guide is designed to help installations for electricians and trade professionals. In its own words, this relates to: