Requirements for Electrical Installations, IET Wiring Regulations, Eighteenth Edition, BS 7671:2018+A2:2022 (Electrical Regulations)

Product Information

Remember the key facts attributed to each ‘part’ of the book. Think about the essential pieces of information you would need when physically undertaking an installation task. 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’). The table below outlines what is covered in the BS 7671 book outlining the IET Requirements for Electrical Installations. It also highlights the number of questions in the exam will target the different sections covered in the book. The ‘Test Value (%)’ column serves to show how much of your time should be spent revising each book section. This is based on the total number of questions covered by each book section out of the 60 that will be asked. Book Part

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’. Current carrying capacity and voltage drop for cables (informative). Rating factors for situations and conditions that may affect the current carrying capacities of conductors such as ambient air temperature greater than 30° C (Ca) and cables in groups (Cg). Includes multiple tables for current-carrying capacities and voltage drop for cables with copper or aluminium conductors. Amendment 2 comes into effect immediately when published on 28th March 2022 and the previous version, BS 7671:2018+A1:2020, will be withdrawn six months later. Chapter 55: (all) Other equipment. All the rest of the electrical equipment not covered in other Parts of BS7671 except Part 7. Generator, motors, transformers, auxiliary ‘control circuits’ and lighting.

the requirement for the fire safety design of buildings to be documented where specific conditions of external influence exist, such as protected escape routes and locations with risk of fire; The IEE (Institution of Electrical Engineers) and the IIE (Institution of Incorporated Engineers) joined together in 2006 to form the IET (Institution of Engineering and Technology). Mark Coles, Head of Technical Regulations at the IET, said: “The IET is the authority for electrical installations in the UK and ensures that the National Wiring Regulations Committee carefully considers all necessary updates to the Regulations to ensure they best meet the needs of the industry.

There are also a number of useful considerations to take into account on Periodic Testing & Inspection. Classification of external influences (informative). Classification codes and guidance for environmental conditions that affect electrical installations. 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.

Through its expertise in Standards and Knowledge, Assurance Services, Regulatory Services and Consulting Services, BSI helps clients to improve their performance, grow sustainably, manage risk and ultimately become more resilient. The wiring regulations have been regularly updated ever since to reflect both new developments in wiring and updated modes of best practice. They remained the responsibility of the Society who later became known as the Institute of Electrical Engineers. They now tend to be referred to by their acronym, the IET. Over the years, regulatory standards across nations and continents have become increasingly aligned. This began in 1981 when the regulations aligned with those of the International Electrotechnical Commission (IEC). In 1992, the British Standards Institute ( BSI) formalised the wiring standards under BS 7671. More recently, the European Committee for Electrotechnical Standardization has harmonised wiring regulations further. The BS7671:2018 examination is the same regardless of whether you’re entirely new to the field, or if you’ve completed examinations on historic wiring regulation editions. But if you’re fully up to speed on the last Regs book, you may feel confident enough to focus your revision on the changes that have occurred this time around. Candidates must attain at least a 60% score to successfully pass the exam. Results are graded as a straight-forward pass or fail. Although it’s a difficult concept to master, students should not become overly concerned with their final result during revision periods. If you’re confident that you’ve gained a good understanding of the principles and practicalities of the book, your score will look after itself. Examination structure & content Chapter 44: Protection against voltage disturbances and electromagnetic disturbances covers the safety of installations from voltage and electro-magnetic disturbances which includes voltage surges due to, earth faults, atmospheric origin, switching and electromagnetic disturbances and undervoltage or loss of voltage.