the-Regs : BS7671 18th Edition Online Training
BS 7671: 18th Edition Wiring Regulations – Study when you want and pass your exam when you're ready…
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
Let’s take a look at what are possibly the three most used calculations within the 18th Edition Wiring Regulations for electrical installations. Calculation Voltage Drop Calculating the cross-sectional area of protective conductors Tabulated current carrying capacity of conductors ‘It’ 1. Calculating voltage drop… You won’t find this formula anywhere in BS7671:2018 as this is another … Read more
05: Cable Size and Protective Device Selection The cable most commonly used in domestic electrical installations is the 70 °C thermoplastic PVC insulated and sheathed flat cable which is often referred to as ‘Twin and Earth’ or ‘T&E’ and is available in various sizes ranging from 1.0 mm² up to 16 mm². As well as … Read more
01: Ohm’s Law Ohm’s law is one of the most important theories and a corner stone principle of the electrical industry. We are going to have a look at what Ohm’s law is and how it applies to the electrical world. Firstly, let’s look at the 3 key components that form an electrical circuit. They … Read more