Recommended kit
Recommended Books & Inspection Tools
Hand-picked reference manuals, GS38 safe isolation indicators, calibrated test instruments, and essential gear for UK electrical inspectors.
Affiliate disclosure. When you purchase books or equipment through our recommended Amazon links, we may earn an affiliate commission at no additional cost to you. We only recommend genuine, field-tested instruments and official IET standards.
The 2391-52 is an open-book exam, so the manuals below are not optional extras — you are expected to navigate them under time pressure. Everything here is written against BS 7671:2018+A4:2026, the same edition the 556 questions in our app are written against. Prices were checked on Amazon.co.uk and change without notice.
BS 7671 Reference Manuals & Study Books
Essential IET normative publications, logbooks, and study guides required for C&G 2391-52 open-book exams and field inspection.
- Essential Exam Book
IET On-Site Guide (BS 7671:2018+A4:2026)
Directly referenced in initial verification questions and max Zs calculation topics.
£37.95 View on Amazon - Official Test Code
IET Guidance Note 3: Inspection & Testing
The definitive specification for initial verification, periodic condition reporting, and EICR observation codes.
£43.05 View on Amazon - Pocket Field Companion
The Electrician's Site Companion & Test Log
Compact site notebook for logging dead and live test results prior to formal certificate entry.
£10.79 View on Amazon - 2391 Study Handbook
Practical Guide to Electrical Inspection, Testing and Certification
Step-by-step photographic guide for 2391 practical and written exam preparation.
£18.99 View on Amazon
Test Equipment & Safe Isolation Kits
Calibrated multifunction testers, GS38 voltage indicators, proving units, and safe isolation LOTO kits.
- GS38 Approved
Martindale VIPD138-S Safe Isolation Voltage Indicator & Proving Unit Kit
Mandatory for demonstrating the 10-step safe isolation procedure in 2391 practical exams.
£177.60 View on Amazon - Calibrated MFT
Kewtech KT66ET Multifunction Tester and Earth Tester
Used for continuity (r1, r2), insulation resistance at 250V/500V/1000V, non-trip loop Zs, and RCD testing.
£1,366.80 View on Amazon - Safe Isolation LOTO
Electrical Circuit Breaker Lockout Tagout Safety Kit
Essential lockout padlocks, tags, and MCB lockouts for working dead safely under EAWR 1989.
£25.09 View on Amazon - Fast Socket Check
Kewtech Socket & RCD Outlet Tester UK
Instant socket polarity test and 30mA RCD trip button checker for rapid initial inspection.
£11.87 View on Amazon
Field Inspection & Hand Tools
Professional 1000V VDE insulated hand tools, True-RMS multimeters, torque screwdrivers, and cable preparation instruments.
- 1000V Insulated
Wiha VDE Insulated PocketMax Torque Screwdriver Set 1000V
Ensures precise manufacturer-specified terminal tightness on consumer units to prevent thermal C2 observations.
£36.98 View on Amazon - True-RMS Meter
Fluke 117 Electricians True-RMS Multimeter
Compact true-RMS meter with VoltAlert non-contact voltage detection for quick field checks.
£240.00 View on Amazon - 1000V Certified
KNIPEX VDE Insulated Pliers for Electrical Installation 1000V
Heavy-duty insulated combination pliers for safe cable preparation and terminal termination.
£52.70 View on Amazon - Precision Stripper
C.K T1280 Armoured & Sheath Cable Stripper
Ergonomic cable stripper for clean outer sheath removal without damaging conductor insulation.
£12.84 View on Amazon
Pair Them With Our App
Books teach the regulations; question practice is what gets you through the exam. The app has 556 exam-standard questions, weighted mock exams, 4 calculators and 15 quick reference cards — all written against BS 7671:2018+A4:2026.
