Technical Articles
2391 Study Guides & Industry Insights
Expert advice, calculation breakdowns, and BS 7671:2018+A4:2026 guidance to help you pass your inspection & testing qualification.
Regulations 5 min read
BS 7671:2018+A4:2026 Inspection & Testing Updates Explained
Key changes in Amendment 4 (2026) affecting electrical inspection, EIC certificates, EV charging points, and protective conductor testing.
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Inspection Practice 6 min read
Mastering EICR Classification Codes: C1, C2, C3 and FI Explained
Learn how to correctly classify electrical inspection defects under BS 7671 and IET Guidance Note 3 with real-world inspection examples.
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Exam Prep 7 min read
How to Pass the City & Guilds 2391-52 Exam: The Ultimate 2026 Guide
Master the C&G 2391-52 combined initial verification and periodic inspection exam with our proven study strategy, BS 7671 reference tips, and practical test sequence guide.
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