- A4 PDF · 86 pages
- EICR coding
- BS 7671:2018+A4:2026
EICR Coding for Electricians
C1, C2, C3 and FI: 138 Graded Scenarios and 150 Worked Observations for BS 7671:2018+A4:2026
Practice in getting the code right on an Electrical Installation Condition Report under BS 7671:2018+A4:2026.
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Written by a City & Guilds 2391-51 qualified electrician.
Independent publication. Not produced, endorsed or approved by City & Guilds, the IET or BSI. Nor by Electrical Safety First, whose free guides it cites.
What is inside
What you get
The same defect can get a C2 from one inspector and a C3 from the next. This book is practice in getting the code right on an Electrical Installation Condition Report under BS 7671:2018+A4:2026.
- 138 original coding scenarios, graded 46 Easy, 57 Core and 35 Challenging, from single findings to short jobs with several findings, limitations and FI
- 18 heating scenarios: night storage and panel heaters, boilers and their controls supplies, electric and flow boilers, heat pump isolators, electric floor heating, immersion heaters, towel rails, frost thermostats and trace heating
- Every answer gives the code, the reasoning, the overall outcome and the page to look up in the free guidance it rests on
- Judgement notes wherever a code turns on what the inspector finds, saying what would change it
- 150 worked observations grouped by area, for reference
- FI or C3: how to tell them apart, with three questions to ask before writing FI
- Extent and limitations: agreed, operational and standard limitations, and what goes in Section D
- What A4 changed for coding, checked against the IET’s A4 and A2 model forms
- 33 model observations in plain wording, and 24 common coding mistakes, each linked to practice
- The law for rented homes in England, with the regulation for each point
At a glance
- Format
- A4 PDF, 86 pages, clickable contents: every question links to its answer and back. Print the practice pages to write your answers.
- Scenarios
- 138, graded 46 Easy, 57 Core and 35 Challenging, including 18 heating scenarios
- Answers
- The code, the reasoning, the overall outcome and the page to look up, for every answer
- You will need
- Your own copy of BS 7671:2018+A4:2026 and the free guides
Every coding point gives its source and page, and every source was checked by computer. Codes depend on the inspector’s own assessment of what they find; the book shows the reasoning so you can make that call. BS 7671 and guide text are not reproduced: you will need your own copy of BS 7671:2018+A4:2026 and the free guides.
Contents
Contents
Front matter: how to use this book. Then ten chapters on the codes and how to apply them, four chapters of graded practice, and four appendices: A, answers to the practice scenarios; B, observations and scenarios by code; C, sources; D, glossary.
- What an EICR is and what the codes mean
- The overall outcome
- Deciding the code
- Extent and limitations
- FI or C3? Telling them apart
- Writing a clear observation
- What A4 changed for coding
- Common coding mistakes
- Rented homes: what the law says
- 150 worked observations
- Practice: Easy (Q1 to Q40)
- Practice: Core (Q41 to Q90)
- Practice: Challenging (Q91 to Q120)
- Practice: Heating systems (Q121 to Q138)
Sample pages
Pages from the PDF
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