Regulation 411.3.3 has been redrafted and now has three indents. There is still an exception to omit RCD protection where, other than BA1, BA3 or children (BA2, BA3) and mobile equipment (not exceeding 32 A) for use outdoors, a suitably documented risk assessment determines that RCD protection is not necessary. Regulation, 702.414.3, concerning SELV and PELV, has been introduced. Section 703 - Rooms and cabins containing sauna heaters Classification of external influences (informative). Classification codes and guidance for environmental conditions that affect electrical installations. Option 2 – Fitting an EV charger without PEN Fault built in but installing a PEN Fault device upstream. This section outlines how to meet requirements when selecting and using equipment, cables, and other accessories at work. The information covered here will be covered by 23% of the exam’s questions.

A new Regulation 514.16.1 has been introduced requiring a label to indicate the presence of SPDs. However, there is an exception for domestic (household) premises or similar. Chapter 53 - Protection, isolation, switching, control and monitoring

18th Edition Resources

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.

This publication does not purport to include all the necessary provisions of a contract. Users are responsible for their correct application. This section outlines the relevant tests that must be performed on any installation prior to it being energized. The IET’s (Institute of Engineering and Technology) Requirements for Electrical Installations goes by many aliases; the 18th Edition, BS7671:2018, the Big Blue Book, Wiring Regs, or simply the Regs. But regardless of what you call it, one thing is for sure – if you’re involved in the design, installation or maintenance of electric wiring, you’re going to need it. Post-Brexit, this Amendment sees the further adoption of CENELEC Harmonized Documents as the UK continues the inclusion of standards for new and developing technologies. Chapter 46: Isolation and switching is all about turning things off whether it’s isolation for maintenance or to functionally control a circuit or in an emergency.Chapter 65, Periodic inspection and testing is reporting on the condition of existing installations. Chapter 54: Earthing arrangements and protective conductors. The most important conductors in any electrical installation are the various types of earth conductors, main-earth, protective conductors, and bonding conductors. Here you can discover what size and where when to use each. Appendices: These contain additional, useful, and relevant information relating to the rules and regulations within Parts 1 to 8. There are 17 appendices listed, but with appendix 7 deleted and appendix 12 not used, there are currently only 15 appendices in this latest version of BS7671. As per BS7671:2018 Amendment 2:2022 regulation 722.411.4 a PME (TNCS) earthing facility shall not be used as the means of earthing your EV charge point should the charger or the vehicle on charge be outdoors. There are however several approved methods to still be compliant to the wiring regulations. BSI is the business improvement and standards company that enables organizations to turn standards of best practice into habits of excellence, ‘inspiring trust for a more resilient world’.

Regulation 514.12.2, concerning the RCD notice, has been modified and now contains an exception for domestic (household) premises in certain situations. Chapter 51: are Common rules that may apply to all electrical installations and concerns the operational conditions, conductor colours and labelling.Regulation 422.2 now introduces separate requirements for escape routes and a new concept of 'protected escape routes'. Reference to conditions BD2, BD3 and BD4 has been deleted. Chapter 44 - Protection against voltage disturbances and electromagnetic disturbances Chapter 52: Selection and erection of wiring systems. It’s about cables, conductors, installation, connection, and protection from external influences, such as water, heat, impact etc.

Chapter 35: Safety services. What safety services ‘fire alarm, emergency lighting etc’ are going to be within the installation and how are they going to be supplied. Is all about the book. What BS7671 does and does not apply to (Chapter 11 ‘Scope’) along with the purpose of the regulations (Chapter 12 ‘Object’) and the basic principles that all electrical installations should adhere to (Chapter 13 ‘Fundamental Principles’).

Enter your keyword

The following paragraphs review how a specific ‘part’ of the book may materialise in an examination question format. We’ll be using section 6 for this, which alludes to the inspection and testing of electrical installations. Statutory regulations and associated memoranda (informative). An overview of applicable UK statutory regulations for electrical installations such as the Electricity at Work Regulations 1989 ‘EAWR 1989’ and Electricity Safety, Quality and Continuity Regulations 2002 ‘ESQCR 2002’. The technical content of this section has been extensively revised and expanded. Requirements of this section now apply to: Energy efficiency (informative). Additional recommendations for the design and installation of electrical installations regarding the efficient use of electricity. This appendix will probably be moved to Part 8 within future addition of BS7671. The book is set out in seven parts and certainly isn’t for the faint hearted. It is full of exactly what it says it is, regulations. But fear not, there is a logic that can be followed. Once you are able to navigate the sections of the book, you will be able to easily find your way around it and apply it to the scenario in hand. The seven parts are;