C&G 2382 BS7671 Requirements for Electrical Installation IET 17th Edition Wiring Regulations


The qualification is designed to bring current electricians and related disciplines up to scratch on the latest requirements of BS7671. It comes in two forms, the update and the full exam depending on your recent qualifications and is often asked for by employers.  Although there is no legal requirement to hold the qualification, it can seriously disadvantage you not having it for a number of reasons.

Exam Breakdown

The exam consists of 60 questions to be completed within 120 minutes.  The exam is open book.

Category Number of Questions
Scope, object and fundamental principles 4
Definitions 3
Assessment of general characteristics 5
Protection for safety 14
Selection and erection of equipment 15
Inspection and testing 6
Special installations or locations 10
Appendices 3


Revision List

The following items should form the mainstay of your revision time:

  • Scope of BS7671
  • Electricity at Work Regulations
  • BS7671 17th Edition Wiring Regulations
  • Electrical Safety
  • Regulations and Codes of Practise
  • Electrical terminology
  • Earthing and bonding
  • Inspection and Test sequence
  • Initial verification
  • Protective devices
  • RCDs and RCBO requirements
  • IP ratings
  • Volt drop
  • Protective conductors
  • Ring final conductors
  • Disconnection times
  • Earth Fault Loop Impedance
  • Socket outlet and final circuit arrangements
  • Basic and fault protection
  • Isolation and switching
  • Special locations
  • Protection against fire
  • Protection against electric shock
  • Circuit protection
  • Appendices
  • Current Carrying capacities of cables

Potentially, the exam can cover anything that appears in the main BS7671 document. It is wise to learn to navigate the various sections, index and contents before you take the exam.

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