City & Guilds Level 3 Award in Initial Verification (C&G 2391-51)

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For electrical professionals in the United Kingdom, the City & Guilds Level 3 Award in Initial Verification (2391-51) represents a significant milestone in career progression. It is the industry-standard qualification that validates an electrician’s ability to inspect, test, and certify new electrical installations. This guide provides an exhaustive breakdown of everything you need to know to successfully navigate this challenging but rewarding certification.

What is the City & Guilds Level 3 Award in Initial Verification (C&G 2391-51)?

The City & Guilds 2391-51 is a specialist professional qualification designed for practicing electricians who need to confirm that new electrical installations are safe for service before they are energized.

  • Official Exam Name & Acronym: Level 3 Award in Initial Verification of Electrical Installations (C&G 2391-51).
  • Conducting Body/Authority: City & Guilds of London Institute. Established in 1878, City & Guilds is the leading vocational education organization in the UK.
  • Purpose of Exam: Professional Certification and Licensure. It is often a mandatory requirement for joining competent person schemes (like NICEIC, NAPIT, or ECA) as a “Principal Duty Holder” or “Qualified Supervisor.”
  • Geographic Validity: Primarily recognized across the United Kingdom (England, Wales, Northern Ireland, and Scotland). It is also highly regarded in Commonwealth countries that follow BS 7671 standards.
  • Level of Competence: Specialist/Advanced Level. It sits at Level 3 of the Regulated Qualifications Framework (RQF), equivalent to an A-Level, but requires high-level technical expertise.
  • Brief History: This qualification evolved from the legendary C&G 2391-10 and the subsequent 2394. It was reintroduced in 2017 to provide a more streamlined and practical approach to inspection and testing.

Who Can Take the City & Guilds Level 3 Award in Initial Verification (C&G 2391-51)? (Eligibility Requirements)

This is not an entry-level course. It is intended for experienced electrical personnel who possess a solid foundation in electrical theory and wiring regulations.

Eligibility Checklist

  • Academic Requirements: While there are no formal “degree” requirements, candidates should ideally hold a Level 3 NVQ in Electrotechnical Services or the 2365 Level 3 Diploma.
  • Experience Requirements: It is strongly recommended that candidates have several years of experience in the electrical industry. You must be comfortable using Multi-Function Testers (MFTs).
  • Mandatory Knowledge: A current qualification in the IET Wiring Regulations (BS 7671:2018+A2:2022) is essential.
  • Documentation Checklist:
    • Valid Photo ID (Passport or UK Driving License).
    • Evidence of previous electrical qualifications (Level 2/3 Certificates).
    • Completed enrollment form through an approved City & Guilds center.
  • Language Proficiency: The exam is conducted in English. Candidates must have sufficient literacy to read the IET Guidance Note 3 and answer technical multiple-choice questions.
Requirement Details
Minimum Age 18 Years
Prerequisite Qualification Highly recommended: C&G 2382 (18th Edition)
Work Experience Practicing electrician (recommended 2+ years)
Legal Standing No criminal record checks required for the exam itself

How to Register for the City & Guilds Level 3 Award in Initial Verification (C&G 2391-51)

Exam Schedule & Availability

Unlike national school exams, the 2391-51 is On-Demand. Most private training centers run the course and the associated assessments monthly or bi-monthly. You can choose a date that aligns with your training schedule at an approved C&G center.

Exam Fees (Detailed Breakdown)

Fees vary significantly between private training providers and Further Education (FE) colleges. The following are estimated industry averages:

Fee Type Estimated Cost (GBP)
Training Course & Registration £450 – £650
City & Guilds Exam Entry Fee Included in course (approx. £85 if separate)
Online Exam Retake Fee £50 – £100
Practical Assessment Retake Fee £150 – £250
Total Estimated Cost £500 – £750

Booking Process

  1. Find a Center: Use the City & Guilds “Find a Center” tool to locate an approved provider.
  2. Enrollment: Submit your certificates and pay the deposit.
  3. Slot Selection: Your center will assign you a date for the 2391-051 online exam and a separate window for the 2391-501 practical assessment.

Retake Policy

  • Waiting Period: There is no mandatory waiting period, but centers usually require 7 days to re-register you on the C&G E-volve platform.
  • Attempts: There is no hard limit on attempts, but you must pay for each retake.

Score Validity

The qualification has lifetime validity. Once you are certified in Initial Verification, the certificate does not expire, though you are expected to stay updated with the latest versions of BS 7671.

City & Guilds Level 3 Award in Initial Verification (C&G 2391-51) Exam Format & Structure

Exam Format

The 2391-51 is a “Combined Assessment” qualification consisting of two main parts:

  1. Online Multiple Choice Exam (2391-051): A computer-based test (CBT) taken at the center.
  2. Practical Assessment (2391-501): A hands-on test on a simulated electrical rig.

Timing & Duration

  • Practical Assessment (501)
  • Section Duration Format
    Online Exam (051) 90 Minutes 40 Questions (Open Book)
    Approx. 2.5 – 3 Hours Hands-on Testing & Documentation

    Syllabus & Content Domains

    Domain Topics Covered Weightage
    Statutory Requirements Electricity at Work Regs 1989, Health & Safety 10%
    Visual Inspection Checklists, what to look for in new installs 15%
    Testing Theory Continuity, Insulation Resistance, Earth Fault Loop Impedance 40%
    Verification & Certification Completing Electrical Installation Certificates (EIC) 20%
    Safety & Isolation Safe isolation procedures, GS38 equipment 15%

    Official Reference Materials

    The online exam is Open Book. You are permitted to use:

    • IET Guidance Note 3: Inspection & Testing (The primary reference).
    • BS 7671: The IET Wiring Regulations.
    • IET On-Site Guide.

    How is the City & Guilds Level 3 Award in Initial Verification (C&G 2391-51) Scored?

    • The Passing Threshold: For the online 2391-051 exam, the pass mark is typically around 70% to 75% (approx. 28-30 correct answers out of 40).
    • Practical Assessment: This is a Pass/Fail binary. You must successfully complete all safety-critical tasks (like Safe Isolation) to pass. A single safety breach results in an automatic fail.
    • Negative Marking: None. You should answer every question.
    • Result Declaration: Online exam results are usually available immediately upon submission. Practical results are provided by the assessor at the end of the session.

    How Difficult is the City & Guilds Level 3 Award in Initial Verification (C&G 2391-51)?

    Overall Difficulty Rating: Challenging. While the online exam is open-book, the time pressure is intense. The practical assessment is where most candidates fail due to “exam nerves” or minor technical errors in testing sequences.

    Historical Pass Rates

    Metric Estimated Percentage
    First-time Pass Rate 55% – 65%
    Overall Pass Rate (after retakes) 85%

    C&G 2391-51 vs. Similar Certifications

    Feature C&G 2391-51 C&G 2391-50 C&G 2391-52
    Focus New Installations only Existing Installations (EICR) Combined (New & Existing)
    Online Exam 40 Questions 40 Questions 60 Questions
    Best Suited For Install Electricians Maintenance/Repair Contractors/Supervisors

    How to Prepare for the City & Guilds Level 3 Award in Initial Verification (C&G 2391-51)

    Recommended Study Timeline

    • Total Preparation Time: 40–60 hours.
    • Phase 1 (Weeks 1-2): Master Guidance Note 3. Learn the sequence of tests by heart.
    • Phase 2 (Weeks 3-4): Practice filling out Electrical Installation Certificates (EIC) and Schedules of Test Results.
    • Phase 3 (Final Week): Take timed mock exams for the online portion.

    Best Study Resources

    • Books: Exam Preparation: Electrical Installations (2391) by The IET.
    • Online: LearningLounge or SparkyNinja for video tutorials.
    • Practical: Spend time with a calibrated MFT and a test rig if your employer has one.

    What to Expect on Exam Day

    • Check-in: Arrive 30 minutes early. You must present your ID.
    • The Online Exam: No programmable calculators allowed. You can bring your tabbed/highlighted GN3 and BS 7671.
    • The Practical: You will be given a “Scenario” (e.g., a small commercial unit). You must perform safe isolation, a full visual inspection, and all dead/live tests in the correct order.
    • Prohibited Items: Mobile phones, smartwatches, and loose notes.

    After Passing the City & Guilds Level 3 Award in Initial Verification (C&G 2391-51)

    Once you pass, you will receive your City & Guilds certificate (usually within 2-4 weeks). This allows you to:

    • Sign off your own work on an EIC.
    • Apply for “Gold Card” (JIB/ECS) status if you meet other criteria.
    • Act as a Qualified Supervisor for NICEIC/NAPIT.
    • Command a higher salary (Certified inspectors often earn £5k-£10k more per year than standard installers).

    Frequently Asked Questions

    1. Is the 2391-51 harder than the old 2394? It is considered more practical and less focused on long-form written essays, making it more accessible but still technically rigorous.
    2. Can I take the exam without a training course? Technically yes, if a center allows “exam-only” entry, but it is highly discouraged due to the specific C&G marking criteria for the practical.
    3. Do I need my own tester? No, centers provide calibrated MFTs, but using your own (if calibrated) is often better as you are familiar with the interface.
    4. What happens if I fail the practical but pass the online exam? You only need to retake the practical. You “bank” the online pass for a set period (usually within the same registration window).
    5. Is GN3 allowed in the practical? Usually, yes, for referencing test result tables, but you shouldn’t be reading it to learn *how* to test during the assessment.
    6. Does this cover EICRs? No, for Periodic Inspection (EICRs), you need the 2391-50 or the combined 2391-52.
    7. How many questions are on the online exam? 40 questions.
    8. Is there a written paper? No, the traditional written paper has been replaced by the online CBT.
    9. What is the most common reason for failure? Forgetting to verify the test leads before use or failing to properly secure a lock-out tag during safe isolation.
    10. How long does the certificate take to arrive? Digital results are instant; the hard copy takes 10-20 working days.

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