18th Edition Wiring Regs Prep

Fully updated for BS 7671 Amendment 4 (2026). 2,000+ questions, timed mock exams, flashcards and a readiness score to help you pass the 18th Edition exam. Study offline.

Pass the 18th Edition (BS 7671) exam with confidence. 18th Edition Wiring Regs Prep is the complete study companion for electricians preparing for the City & Guilds 2382-26 Wiring Regulations exam, fully updated for BS 7671:2018+A4:2026 (Amendment 4).

Practice with over 2,000 original exam-style questions across every topic on the syllabus, each with a clear, detailed explanation so you understand the concept, not just the answer.

WHAT YOU GET

• 2,000+ original practice questions
• Full-length timed mock exams (60 questions, 2 hours, open-book style)
• Quick practice and practice-by-topic
• Flashcards with spaced repetition
• Review incorrect and bookmarked questions
• Readiness score, per-topic mastery, streaks and exam countdown
• A detailed rationale and regulation-area reference on every question
• Works fully offline, so you can study anywhere

TOPICS COVERED

• Scope, definitions and fundamental principles
• Protection against electric shock (ADS, disconnection times, RCDs, SELV/PELV)
• Protection against thermal effects and overcurrent
• Isolation, switching and control
• Selection and erection of equipment (cable sizing, voltage drop, correction factors)
• Inspection and testing (continuity, insulation resistance, Zs, RCD tests)
• Special locations (bathrooms, EV charging, solar PV, battery storage, medical)
• Earthing and bonding

UPDATED FOR AMENDMENT 4 (2026) Includes concepts introduced by Amendment 4, such as battery and energy storage systems, Power over Ethernet, energy efficiency and updated special-location requirements.

MEMBERSHIP REQUIRED This is a paid app. Full access to all questions, mock exams and features requires a subscription or a one-time lifetime purchase:

• Monthly Pro: auto-renewing monthly subscription
• Yearly Pro: auto-renewing yearly subscription, with a 3-day free trial
• Lifetime Access: one-time purchase, no subscription Prices are shown in the app in your local currency. Payment is charged to your Apple Account at confirmation of purchase. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel anytime in your Apple Account settings.

Terms of Use (EULA): https://joykhansayan1.github.io/wiring-regs-prep/terms.html Privacy Policy: https://joykhansayan1.github.io/wiring-regs-prep/privacy.html

IMPORTANT This app is an independent study aid. It tests concepts only and does not reproduce the copyrighted text of BS 7671. BS 7671 is (c) IET and BSI. This app is not affiliated with, endorsed by, or associated with City & Guilds, the IET, or BSI. Always use your own current copy of BS 7671 for the exam and for professional work.