The C&G 2382 exam is 60 multiple-choice questions in 2 hours, open-book, with a 60% pass mark. This guide covers the exam format, the regulation areas that come up most, how to tab your BS 7671 book, time management strategies, and the study techniques that actually work.
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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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The City & Guilds 2382-22 is the current 18th Edition IET Wiring Regulations exam. It assesses your knowledge of BS 7671:2018+A2:2022 — the standard that governs electrical installation work across the UK. Passing this exam is a requirement for most electrical qualifications and is essential for anyone working in the industry.
The exam is typically taken at a City & Guilds approved centre. Some providers offer the exam as part of a classroom course (usually 3 to 5 days), while others offer it as a standalone assessment for distance learners. Either way, the exam itself is the same.
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.
While the exam can draw from any part of BS 7671, certain areas appear far more frequently than others. Prioritise your study time on these sections:
Chapter 41 (protection against electric shock) is the most heavily examined area. Know the disconnection times in Table 41.1, the maximum Zs values in Tables 41.2 to 41.4, and the requirements for RCD protection under Regulation 411.3.3. Chapter 43 (overcurrent protection) and Chapter 44 (overvoltage protection) also feature regularly.
Chapter 52 (wiring systems) covers cable selection, installation methods, and the correction factors from Appendix 4. Chapter 53 (switching and control) and Chapter 54 (earthing and protective conductors) are also frequently tested. Earthing arrangements (TN-S, TN-C-S, TT) are essential knowledge.
Sections 701 (bathrooms), 702 (swimming pools), 704 (construction sites), and 711 (exhibitions) are commonly tested. Know the zone requirements for bathrooms, the additional RCD requirements, and the IP ratings needed for each zone.
Do not skip the definitions. The exam regularly tests whether you understand terms like "skilled person (electrically)," "basic protection," "fault protection," "extraneous-conductive-part," and "simultaneously accessible." A question might hinge on knowing the exact definition.
Part 1 (Scope, object and fundamental principles), Part 3 (Assessment of general characteristics), and Part 6 (Inspection and testing) are also examined but typically carry fewer questions. Still, do not ignore them entirely — a few easy marks from these sections could make the difference between pass and fail.
The 18th Edition exam rewards structured, active study. Reading the book cover to cover is not efficient — BS 7671 has over 500 pages and much of it reads like a legal document. A better approach is to study strategically, focusing on understanding and recall.
Take a free 18th Edition mock exam right now: 30 questions from a 300-question bank, 60-minute timer, 70% pass mark. Covers Chapter 41 protection, RCDs, Section 722 EV charging, AFDDs, supplementary bonding, A4:2026 changes. No sign-up needed.
Start the 18th Edition mock →Understanding the types of questions that appear on the C&G 2382 exam helps you prepare more effectively. Here are the main categories:
The best preparation is to practise all question types. Elec-Mate's mock exams include a mix of all these formats, with each question linked to the relevant BS 7671 regulation so you can review the source material after answering.
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With 60 questions in 120 minutes, you have exactly 2 minutes per question. That sounds manageable, but in practice, time pressure is one of the main reasons candidates fail. Some questions can be answered in 30 seconds; others require looking up multiple tables and applying several steps, which can take 4 to 5 minutes.
The candidates who manage time best are those who have practised looking up regulations so often that they can find any regulation within 10 to 15 seconds. This is where book tabs and familiarity with the numbering system pay off.
Tabbing your BS 7671 book is one of the most effective exam preparation activities. A well-tabbed book can save 30 to 60 seconds per lookup, which over 60 questions could save you 20 to 30 minutes. Here is a systematic approach:
Practise using your tabbed book during mock exams. You will quickly discover if any tabs are in the wrong place or if you need additional tabs for regulations you keep searching for. The goal is to be able to open your book to any major regulation or table in under 15 seconds.
In the final week before your exam, use this checklist to make sure you are fully prepared:
Elec-Mate's 18th Edition mock exams mirror the real C&G 2382 format — 60 questions, 2-hour timer, instant marking…
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