City & Guilds 2391 Exam Topics
Structured practice modules aligned with BS 7671 Part 6 and IET Guidance Note 3. Master initial verification, condition reporting, statutory safety rules, and observation coding.
Open Book Syllabus Modules
Modules permitting BS 7671:2018+A4:2026 and IET Guidance Note 3 during the exam.
Initial Verification (Open Book)
Master the principles and procedures of initial verification for new electrical installations under BS 7671 Part 6.
- • Scope & statutory requirement for initial verification
- • Inspection checklist before energisation
- • Dead testing sequence & continuity methods
- • Insulation resistance test voltages and minimum values
- • Polarity & earth electrode resistance testing
Periodic Inspection & Condition Reporting (Open Book)
In-depth guidance on periodic testing, sampling strategies, EICR inspection schedules, and defect classification.
- • Purpose & frequency of periodic inspection
- • Determining extent and limitations with clients
- • Schedule of inspections for existing installations
- • EICR defect observation coding (C1, C2, C3, FI)
- • Operational limitations and danger notification
Statutory Regulations & Standards (Open Book)
Statutory legislation relevant to electrical inspection, including EAWR 1989, HASWA 1974, CDM 2015, and BS 7671:2018+A4:2026.
- • Electricity at Work Regulations 1989 (EAWR)
- • Health & Safety at Work Act 1974
- • BS 7671 Part 6 normative requirements
- • Building Regulations Part P & commercial standards
- • Competent Person qualifications and legal responsibility
Test Procedures & Instrument Standards (Open Book)
Practical test methods, instrument accuracy standards (BS EN 61557), loop impedance, and RCD testing rules.
- • BS EN 61557 instrument performance standards
- • Continuity test currents (200mA min for protective conductors)
- • Earth fault loop impedance (Zs & Ze) testing
- • RCD testing: 1/2x, 1x, 5x, and ramp tests
- • Phase rotation & functional testing procedures
Certification & Documentation (Open Book)
Completing Electrical Installation Certificates (EIC), MEIWC, and Electrical Installation Condition Reports (EICR).
- • Electrical Installation Certificate (EIC) completion
- • Minor Electrical Installation Works Certificate (MEIWC)
- • EICR Schedule of Circuit Details & Test Results
- • Signatories: Design, Construction, Inspection & Testing
- • Distribution of certification to client & local authority
EICR Fault Coding & Observations (Open Book)
BS 7671 and Guidance Note 3 classification codes for electrical defects found during condition reporting.
- • Code C1: Danger present — immediate remedial action required
- • Code C2: Potentially dangerous — urgent remedial action required
- • Code C3: Improvement recommended
- • Code FI: Further Investigation required without delay
- • Real-world inspection scenarios & classification exercises
Safe Isolation & GS38 Guidance (Open Book)
HSE Guidance Note GS38 and safe working procedures during electrical inspection and testing.
- • 10-step safe isolation procedure
- • GS38 approved voltage indicator & proving unit specifications
- • Lock-out tag-out (LOTO) protocols and safety warning notices
- • Working dead vs. working live restrictions under EAWR Reg 14
- • Personal Protective Equipment (PPE) for electrical testing
Closed Book Rapid Recall Modules
Test your unassisted memory recall of testing sequences, safety rules, and observation classification.
Initial Verification Principles (Closed Book)
Closed-book memory test on key safety rules, test sequence order, and fundamental inspection principles.
Periodic Inspection Fundamentals (Closed Book)
Closed-book questions testing immediate recognition of inspection hazards, frequency, and report outcomes.
Safe Isolation & GS38 (Closed Book)
Essential closed-book memory recall of safe isolation steps, GS38 probe tip dimensions, and safety laws.
Fault Coding Quick Classifier (Closed Book)
Rapid recall test for assigning C1, C2, C3, and FI codes under pressure during exam conditions.