“Wired for Success: A Deep Dive into the Foundations of Electrical Installations in the UK”

Wiring Regulations (BS 7671) The UK Wiring Regulations, officially known as BS 7671, serve as the backbone of electrical installations here in the UK. This comprehensive document, often referred to as the electrical “rulebook,” or “the Regs” is essentially a set of standards and guidelines that dictate how electrical installation work should be carried out … Read more

The UK Electrician Shortage

With the electrical installation industry in the UK growing by the day, there is an ever-increasing need for skilled tradespeople in this sector. This lack of qualified electricians has become a major concern for many businesses across the country. There are several factors that have contributed this current shortage of skilled tradespeople in the electrical … Read more

Introducing, 18th Edition +Amendment 2

BS7671:2018+A2:2022 Let’s take a quick run through the new 18th Edition Wiring Regulations book, which includes Amendment 2 that was introduced in March 2022, BS7671:2018+A2:2022. We’ll go into more detail and get you ready to pass your 18th Edition exam when we go through the book together fully in your 18th Edition online course at … Read more

Earth Fault Loop Impedance (Zs)

The earth fault loop impedance (Zs) directly effects the amount of current that flows under earth fault conditions. (Ipf = V / Zs). As I’ve mentioned in a previous post (see here) fuses and circuit breakers need a certain amount of current in order to meet their maximum disconnection times. ie a 20A type B circuit … Read more

BS7671 and Earthing A to Z

Earths / Protective Conductors are the most important conductor on any installation and that’s why it’s also one of the most important Chapters in the 17th Edition. Chapter 54 Earthing Arrangements and Protective Conductors. From the various supply arrangements; TN-S, TN-C-S and TT which describe how an installation is earthed through to what can be … Read more

Part 6: Inspection and Testing

The thing to remember about Part 6 is that it’s not an instruction book. It does not tell you how to do any inspection or especially testing, it just tells you what you should do. Breaks down into 3 Chapters… Chapter 61: Initial Verification (aka First Check) This is the largest of the 3 Chapters … Read more

Part 4: Protection For Safety

Part 4 is one of the largest and the most important Parts within BS7671 and forms 25% of your final 2382-12 exam… Breaks down into four individual Chapters. Chapter 41: Protection Against Electric Shock Contains methods used to reduce the risks of electric shock within an electrical installation and covers both methods of basic and … Read more