Expert tips, study strategies, and insights to help you prepare for the IET Wiring Regulations exam.
A structured revision breakdown of every part of BS 7671, showing which sections carry the most exam weight and exactly where to focus your study time for the City & Guilds 2382-22.
Read more →Free BS 7671 practice questions with fully explained answers — test your knowledge of the 18th Edition Wiring Regulations before sitting the City & Guilds 2382-22 exam.
Read more →What is the 18th Edition exam pass rate, why do so many experienced electricians fail, and what can you do to make sure you're in the passing group on your first attempt?
Read more →Avoid the mistakes that fail most candidates — learn the top 18th Edition exam errors covering misread questions, poor time management, ineffective book use, and neglected topics, with practical fixes for each.
Read more →A practical breakdown of how long to study for the 18th Edition exam, with realistic revision plans for working electricians, full-time students, and career changers preparing for the City & Guilds 2382-22.
Read more →Complete breakdown of the BS 7671 exam format, question types, and preparation strategies for the City & Guilds 2382-22. Includes example question styles and expert tips to help you pass.
Read more →Proven strategies from experienced electricians for passing the City & Guilds 2382-22 (BS 7671) exam on your first attempt. Covers open-book technique, study planning, key topics, and the mistakes that catch most candidates out.
Read more →A clear explanation of the adiabatic equation S = √(I²t) ÷ k from BS 7671. Learn what it does, when to use it, and how to work through the calculation with a step-by-step example for the IET exam.
Read more →A step-by-step guide to cable sizing per BS 7671. Covers design current, protective device selection, correction factors, voltage drop, and the key formula Ib ≤ In ≤ It with a worked example for the IET exam.
Read more →A practical guide to CPC continuity testing per BS 7671. Covers the R1+R2 method, the wander lead method, expected values, what the results tell you, and why this is the first test in the sequence.
Read more →Understand why shared neutral conductors are dangerous and prohibited by BS 7671. Covers the risks of overloading, broken neutrals, RCD incompatibility, and safe isolation failures — with diagrams for the IET exam.
Read more →A comprehensive guide to electrical earthing and bonding. Covers the three earthing systems (TN-C-S, TN-S, TT), main protective bonding, circuit protective conductors, conductor sizes, and the BS 7671 regulations for the IET exam.
Read more →Step-by-step cable sizing calculation for a domestic 7.4 kW EV charger per BS 7671 Section 722. Covers design current, correction factors, cable selection, voltage drop, Zs verification, and special requirements for electric vehicle charging installations.
Read more →A practical guide to wiring a PIR motion sensor to an outdoor light fitting. Covers terminal connections, IP ratings, override switches, sensor adjustments, and the BS 7671 regulations you need to know.
Read more →A complete guide to insulation resistance (IR) testing per BS 7671. Covers test voltages, minimum values, the neutral conductor problem, false positives and negatives, and practical troubleshooting for the IET exam.
Read more →A complete guide to maximum earth fault loop impedance values and the 80% rule for the IET exam. Covers Table 41.3, why the 80% correction exists, when to apply it, disconnection times, and worked examples for Type B and Type C MCBs.
Read more →Understand how ring final circuits share current, what happens when the ring is broken, why a 32A MCB on 2.5mm² cable doesn't fully protect against overload, and how spurs and poor connections create hidden dangers.
Read more →Getting unequal R1+R2 readings when testing a ring final circuit? Learn the 3-step test procedure, the expected values, and the 5 most common reasons your readings don't match — with diagrams.
Read more →A complete guide to the safe isolation procedure for electrical circuits. Covers the prove-dead process, GS38 test equipment requirements, locking off, warning labels, and the BS 7671 regulations you need to know for the exam.
Read more →A practical guide to supplementary equipotential bonding under BS 7671. Covers what touch voltage is, when supplementary bonding is required, conductor sizes, bathroom bonding rules, and how to test your connections.
Read more →Understand what earth fault loop impedance (Zs) is, why it matters, how to measure it, and how to verify your results against BS 7671 maximum values. Includes the Zs = Ze + (R1+R2) formula and disconnection time tables.
Read more →A practical guide to rearranging electrical formulae for the IET Wiring Regulations exam. Covers Ohm's law, power, Zs, voltage drop, and the adiabatic equation with step-by-step worked examples and triangle methods.
Read more →A clear guide to two-way and intermediate lighting switching for the IET exam. Covers how 2-way switches work, strappers, intermediate cross-over switches, terminal markings, wiring diagrams, and common faults.
Read more →A complete guide to Residual Current Devices (RCDs) for the IET exam. Covers how RCDs detect faults, the different types (RCCB, RCBO), where BS 7671 requires 30mA protection, testing procedures, and common exam questions.
Read more →A study guide for Part 6 of BS 7671 covering initial verification, periodic inspection, and testing procedures for electrical installations.
Read more →Proven strategies and tips for taking the IET Wiring Regulations mock tests. Learn how to manage time, avoid common mistakes, and maximise your score.
Read more →Everything you need to know about Part 7 of BS 7671 covering special installations including bathrooms, swimming pools, construction sites, and more.
Read more →A deep dive into Part 4 of the IET Wiring Regulations covering protection against electric shock, thermal effects, overcurrent, and more.
Read more →A comprehensive guide to preparing for the IET Wiring Regulations exam. Learn about the exam structure, key topics, and effective study strategies.
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