A structured revision walkthrough of every topic in EAL Level 3 Unit TE3-07 (Practices and Procedures for Fault for Diagnosis and Rectification). Use it as a personal study checklist — work through each topic, tick off the points you can confidently explain or calculate, and use the linked Elec-Mate tools to practice the calculation-led parts. Designed for EAL Level 3 apprentices.
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Written and reviewed by Andrew Moore, founder of Elec-Mate, against BS 7671:2018+A4:2026, IET Guidance Note 3 and the IET On-Site Guide.
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UK electricians
“Replaced three separate apps with Elec-Mate. Certs, quotes, and scheduling all in one place.”
Daniel Palmer — DP Electrical
In this section you should be confident with the following points. Each one is a specific topic you should be able to explain, demonstrate, or calculate.
Every key change in the 2026 amendment on one page. AFDDs, TN-C-S protection, new schedule columns, model forms. Pinned on your van dash.
In this section you should be confident with the following points. Each one is a specific topic you should be able to explain, demonstrate, or calculate.
In this section you should be confident with the following points. Each one is a specific topic you should be able to explain, demonstrate, or calculate.
In this section you should be confident with the following points. Each one is a specific topic you should be able to explain, demonstrate, or calculate.
AI-generated mocks, instant marking, and explanations on every question — targeted at your weakest topics. From £6.99/mo.
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In this section you should be confident with the following points. Each one is a specific topic you should be able to explain, demonstrate, or calculate.
Elec-Mate’s apprentice tier turns this unit checklist into an active study plan. You get mock exam questions, flashcards, and revision notes mapped to this unit, plus working calculators for every calculation-led topic. Most apprentices use the app between college blocks and on the train to site — short bursts of revision compound across the year.
The Elec-Mate apprentice tier includes mock exams, flashcards, and revision notes for EAL Level 3 Unit TE3-07 plus every other unit in your qualification. 7-day free trial — see your progress on the tutor dashboard.
A repeatable approach that works for EAL Level 3 Unit TE3-07 and every other unit in your qualification.
Start at Topic 1 and read every bullet point. Don’t try to memorise — just get familiar with the scope. Note any topic that feels unfamiliar so you can come back to it.
For calculation-led topics, open the relevant Elec-Mate calculator and try one worked example. For theory-led topics, find the matching section in BS 7671 or the IET On-Site Guide.
The Elec-Mate apprentice tier includes mock questions mapped to this unit. Aim for 80%+ on a clean run before the real exam.
For practical units (inspection and testing, installation), ask your tutor for additional workshop access. The bench is where the points click.
If you can explain a topic in your own words to another apprentice and they understand it, you know it. This is the single highest-leverage revision tactic.
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“Replaced three separate apps with Elec-Mate. Certs, quotes, and scheduling all in one place.”
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Sole Trader · DP Electrical
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3rd Year Apprentice · Apprentice
Join 1,000+ UK apprentices using Elec-Mate for mock exams, flashcards and revision notes mapped to every unit. 7-day free trial — see your progress on the tutor dashboard.
“Replaced three separate apps with Elec-Mate. Certs, quotes, and scheduling all in one place.”
Daniel Palmer, DP Electrical
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