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…
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
Just a quick one to clear up a few do’s and don’ts for your exam day… Do get a good nights sleep and arrive at your centre at least thirty minutes before your exam is due to start. You’ll need a calculator with a square root function (in case of formula questions) and some photographic ID … Read more
The 17th Edition City & Guilds 2382-15 exam can be much easier to pass if you know these ‘secrets’… 1: The question number will tell you where to look in the book for the answer. Very useful. For example… Question 3 answer will be in Part 1 Question 15 answer will be in Part 4 Question 26 … Read more
This may not be an issue in newer bathrooms that comply with current editions of BS7671 as supplementary bonding in bathrooms may be omitted when regulations 701.415.4.5 (iv), (v) and (vi) are met. However, supplementary bonding the radiator has always been a grey area especially in older bathrooms because the radiator may or may not be an extraneous-conductive part. … Read more
Hi, I recently received an email from a student who’d just passed his 17th Edition City & Guilds 2382-15 exam saying… There was only one question that I had absolutely no idea on, it was regarding Circuit breaker Types. I can’t remember the question exactly, but but it was along the lines of “In what … Read more
The17th Edition of the Wiring Regulations gives us methods of fault protection within Part 4 Chapter 41 BS 7671. But firstly what is Fault Protection? Part 2 of BS 7671 Says… “Protection against electric shock under single fault conditions” In plain language this means that fault protection provides us with protection against receiving an electric shock from … Read more
It’s the festive season ‘again’ and just for a bit of fun here’s… “Ten Wiring Regulations That Apply to Christmas” 314.1 Every installation shall be divided into circuits, as necessary to: (iii) take account of the hazards that may arise from the failure of a single circuit such as a lighting circuit. 414.1.1 Protection by … Read more
Circuit Breakers Perhaps the most common of all protective devices circuit-breakers are found in modern single-phase domestic consumer units and three-phase industrial / commercial distribution boards. The British Standard BS EN 60898 applies to these devices and they usually come in sizes of 2 A up to 125 A. Apart from its nominal rating (In) 10 A, 16 … Read more
I’m regularly asked… “With the City & Guilds 17th Edition qualification am I allowed to carry out work in domestic properties?” My reply… In order to carry out electrical work in domestic installations you will also need to comply with Part P and other relevant parts of the building regulations as well as the regulations in 17th … Read more
I know I probably need to get out more, but here’s ten reasons I like the 17th Edition of the Wiring Regulations ‘BS7671:2008+A3:2015’. Although it’s a non statutory document BS7671 provides guidance on ensuring the safety of all electrical installations here in the UK, assisting you to comply with the Electricity at Work Regulations. The … Read more