Category: General

Sockets, Ring and Radial Circuit Arrangements

Appendix 15 in BS7671 is probably the most useful practical description in the whole book. If you want to know what you can do and what goes where it’s all here. Ring Socket Circuits… Spread your sockets around evenly to avoid overloading any part of the ring. Don’t

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Maximum Zs values in a TT earthing system

The maximum disconnection times for a TT system is 0.2 seconds for final circuits up to and including 32A (Table 41.1) and for distribution circuits or circuits greater than 32A it’s 1 second (411.3.2.4). The problem is that with TT systems the external loop impedance value (Ze) will

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Prospective Fault Current (Ipf)

Prospective Fault Current (Ipf) is the general term used for the highest amount of current that will flow under fault conditions. On a single phase installation fault conditions can either be Prospective Earth Fault Current (PEFC) Line to Earth or Prospective Short Circuit Current (PSSC) Line to Neutral.

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17th Edition Online Training : 2016

How it works Our 17th Edition online training course is real home training and support and based on a traditional 3 – 4 day classroom course. Specially designed to prepare and assist you in passing your City & Guilds 2382-10 exam. Let’s go through the book together A full

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Part P and other Building Regulations

If you carry out electrical installations dwellings in England, Scotland or Wales not only are you expected to be able to comply with the HASAWA ‘risk assessments, safe working practices etc’ the EAWR ‘demonstrated by compliance with BS7671’ but also any relevant parts of the Building Regulations for example… Part A: Structural – Depth of cases,

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Risk Assessment Basics…

Companies have a legal duty to ensure that suitable arrangements are in place to manage health and safety. Documented risk assessments must be made if the company employs 5 or more people and these records must be kept. Basically: Assess the possible risks. Determine the possible consequences. Who

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Safe Isolation Save Lives

The following safe isolation procedure could save your life. If you have no experience and/or knowledge then you can’t avoid the dangers that are present and you should not be working on any electrical circuits or equipment. If in doubt always consult a competent (electrically skilled) person. Select

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Six Likely Exam Questions….

Here are 6 random questions likely to show up in your City & Guilds 2382-15 exam. I’ll won’t give you the answers but I’ll tell you where to look… BS7671 does not include requirements for Have a look at Part 1 Chapter 11 Scope this is where you’ll

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Online 17th Edition Course. Is it for you?

Online 17th Edition Training? Is online training for you? I have written this page to help you to decide. As a trainer who regularly teaches the City & Guilds 17th Edition in the classroom on 3 day courses and as someone who hosts and presents an online 17th

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Inspection & Testing – Initial Verification

“Every installation shall, during erection and on completion before being put into service, be inspected and tested to verify, so far as reasonably practicable, that the requirements of the Regulations have been met.” 610.1 “On completion of the verification, according to Regulations 610.1 to 610.5, a certificate shall

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