Author: the Regs Guy

What’s an Electrician?

  What makes an electrician? The Electricity at Work Regulations 1989 (EAWR) – Regulation 16 states that… “No person shall be engaged in any work activity where technical knowledge or experience is necessary to prevent danger or where appropriate injury, unless he/she possesses such knowledge or experience, or

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Electric Shocks

How an electric shock occurs… Current travels through conductors within a closed circuit. The conductors could be made of copper such as in a cable, other metals, water or in the worst case the conductor can become the human body. An electric shock occurs when a person becomes

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The 17th Edition Has Still Got Legs

The 17th Edition has still got legs… Although the 17th Edition of BS 7671 is due to be replaced by the 18th Edition in January 2019, the 17th Edition is relevant today and will still be as relevant long after that date. The main reason for this is…

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Competent Person’s Schemes

In order to be able to sign off your own work under Part P you would need to be a member of a domestic installers competent person’s scheme ie with NAPIT, Elecsa, NICEIC etc. To join a competent persons scheme you would need to demonstrate to them that

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Approved Document P – Expained.

What is an Approved Document? Approved documents are a series of documents that have been approved by the government and give practical ‘non-statutory’ guidance on how to meet the requirements of the Building Regulations which are a statutory (legal requirement). If you follow the guidance within an approved

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Installing a Shower – Electrically !

Wiring a Shower. Perhaps one of the easiest circuits to install is the one that feeds a shower. Although it’s just a simple radial circuit there are a few pit holes you’ll need to avoid. We are going to assume that we are dealing with a domestic installation

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Isolation and Switching Chapter 53 BS 7671

Key Points of… Isolation: 537.2 Every circuit / installation must be provided with a method of isolation from the supply. This isolation device should also be provided with a method to prevent unintentional or inadvertent reinstating (usually lockable). In a TN-S or TN-C-S system it is not necessary

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Question from a student

I have recently signed up for your 17th Edition course and just completed a first fairly quick run through the book with your slides. Will now start again being more thorough and start going through the workbooks. As I have gone through the regs I have “tested” my

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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

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17th Edition Exam Day – Do’s and Don’ts

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

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