What is the City & Guilds 2391-52 Qualification?
The 2391-52 is a combined course that covers both initial verification and periodic inspection & testing. It replaces the older 2394 and 2395 qualifications, streamlining the process for electricians who require both competencies.
This qualification is designed for practicing electricians who need to certify new electrical installations and inspect existing ones. It is highly valued in the industry and is often a requirement for roles that involve inspection, testing, and certification of electrical installations.
Why is the City & Guilds 2391-52 Inspection and Testing Course Important?
The UK electrical industry is highly regulated, and inspection and testing are crucial parts of ensuring that installations meet safety and legal standards.
Here’s why the 2391-52 qualification is important for electricians:
✅ Industry Recognition – Many employers require this qualification for inspection and testing roles. Holding this certification demonstrates that you have advanced knowledge in electrical testing and verification.
✅ Legal & Safety Compliance – The UK follows the 18th Edition Wiring Regulations (BS 7671), and failing to properly inspect and test installations can lead to serious legal and safety risks.
✅ Boost Your Career – With 2391-52, you can work as an electrical inspector, testing engineer, or an approved contractor for schemes like NICEIC or NAPIT.
✅ Higher Earning Potential – Electricians with inspection and testing qualifications can earn £30,000-£50,000 per year, depending on their experience and location.
✅ Meet JIB Gold Card Requirements – If you’re aiming for an ECS Gold Card, this qualification strengthens your application.
Who Should Take the 2391-52 Electrical Inspection and Testing Course?
This qualification is designed for:
✔ Experienced electricians who are already working in the industry but do not have formal inspection and testing certification.
✔ Electricians looking to expand their knowledge in periodic testing and initial verification.
✔ Contractors who want to carry out electrical condition reports (EICRs) for clients.
✔ Self-employed electricians who need the qualification to join competent person schemes like NICEIC, NAPIT, or Stroma.
Prerequisites
Although there are no strict entry requirements, it is strongly recommended that you:
- Have a Level 3 electrical qualification or equivalent.
- Understand the 18th Edition Wiring Regulations (BS 7671:2018).
- Have experience working on single-phase and three-phase electrical installations.
Key Learning Outcomes
Upon completion of the course, candidates will be able to:
- Understand Industry Regulations – Gain a deep understanding of the 18th Edition Wiring Regulations (BS 7671) and IET Guidance Note 3.
- Perform Initial Verification – Learn how to inspect, test, and certify new electrical installations before they are energised.
- Conduct Periodic Inspections – Develop skills to assess and test existing electrical installations, ensuring their continued safety and compliance.
- Use Inspection and Testing Equipment – Gain hands-on experience with instruments such as multimeters, insulation testers, and earth loop impedance testers.
- Complete Required Documentation – Learn how to correctly fill out Electrical Installation Certificates (EICs), Electrical Installation Condition Reports (EICRs), and other mandatory forms.
- Identify and Rectify Faults – Develop problem-solving skills to diagnose and correct issues found during inspection and testing.
Course Structure and Assessments
The 2391-52 course is typically delivered over 5 days. It combines classroom-based learning with practical hands-on training.
Assessment Methods:
- Multiple-Choice Exam (Online)
- 60 questions
- 120 minutes
- Open book (BS 7671 and IET Guidance Note 3 allowed)
- Written Assignment
- 80 minutes
- Four structured questions based on real-world scenarios
- Practical Assessment
- 4-hour hands-on test
- Candidates perform initial verification and periodic inspection on simulated installations
- Includes fault-finding, testing procedures, and documentation
These assessments ensure that candidates possess both theoretical knowledge and practical expertise.
Prerequisites and Recommended Knowledge
Who Can Enroll?
- Practicing electricians with experience in electrical installation.
- Candidates with a Level 3 electrical qualification.
- Individuals with a solid understanding of BS 7671 Wiring Regulations.
Recommended Knowledge Before Starting
- 18th Edition Wiring Regulations (BS 7671:2018)
- IET Guidance Note 3 (Inspection & Testing)
- Basic understanding of 3-phase electrical systems (useful but not essential)
- Familiarity with common test instruments, such as insulation resistance testers, RCD testers, and earth loop impedance testers.
Essential Course Materials
During the course and assessments, candidates are required to have access to the following books:
- BS 7671:2018 – IET Wiring Regulations
- IET On-Site Guide
- IET Guidance Note 3 – Inspection & Testing
These materials are permitted during the open-book multiple-choice exam and are essential for both study and reference.
Benefits of Completing the 2391-52 Qualification
1. Professional Development
This course demonstrates a commitment to professional growth, ensuring electricians remain up-to-date with industry standards.
2. Increased Employability
Employers often prefer electricians who have the 2391-52 qualification, as it certifies their ability to safely inspect and test electrical installations.
3. Expanding Work Opportunities
Electricians with this qualification can offer a wider range of services, including initial verification, periodic inspection, and condition reporting.
4. Compliance and Safety
By understanding the latest regulations, electricians can ensure that installations are safe and compliant, reducing the risk of electrical hazards.
5. Industry Recognition
The qualification allows electricians to register with leading professional organizations, improving credibility and job prospects.
How to Prepare for the City & Guilds 2391-52 Course?
1. Understand the Course Structure
The 2391-52 course consists of three main elements:
1️⃣ Theory & Regulations – Covers BS 7671, IET On-Site Guide, and Guidance Note 3.
2️⃣ Written & Multiple-Choice Exams – Tests your knowledge on electrical inspection principles.
3️⃣ Practical Assessment – Demonstrates your ability to inspect, test, and complete certification paperwork.
2. Study the Right Materials
To succeed in this course, you must familiarize yourself with:
📖 BS 7671:2018 Wiring Regulations (Latest edition)
📖 IET On-Site Guide (Essential for practical guidance)
📖 IET Guidance Note 3 (Inspection & Testing)
📖 Electrical Installation Certificates (EICs) & Electrical Installation Condition Reports (EICRs)
3. Get Hands-on Experience
Before enrolling, make sure you have practical experience using test instruments, including:
🔧 Continuity testers
🔧 Insulation resistance testers
🔧 Earth loop impedance testers
🔧 RCD testers
Practice safe isolation procedures and learn how to interpret test results correctly.
What to Expect in the 2391-52 Assessment & Exam
The assessment for City & Guilds 2391-52 includes:
1. Multiple-Choice Online Exam (120 minutes)
📝 60 questions covering electrical inspection & testing principles.
📝 Open book – You can use BS 7671 and IET Guidance Note 3.
📝 Topics include fault finding, test procedures, and documentation.
2. Written Assignment (80 minutes)
✍ Short-answer questions on regulations, procedures, and best practices.
✍ Emphasis on safety, compliance, and documentation.
3. Practical Assessment (2.5 to 4 hours)
🔧 Inspect and test a simulated electrical installation.
🔧 Complete an Electrical Installation Condition Report (EICR).
🔧 Demonstrate correct use of test equipment.
Tips to Pass the 2391-52 Exam
✔ Practice Using Test Instruments – Know how to use an insulation resistance tester, RCD tester, and loop impedance tester.
✔ Memorize Key Formulas – Such as those for earth fault loop impedance and voltage drop.
✔ Understand BS 7671 & Guidance Note 3 – These will help you answer exam questions confidently.
✔ Read and Understand the Questions – Many candidates fail due to misinterpreting questions.
Career Opportunities After Completing the 2391-52 Course
Once you pass the City & Guilds 2391-52 qualification, you can apply for roles such as:
🔹 Electrical Inspector – Inspect and test new and existing installations.
🔹 Testing and Commissioning Engineer – Ensure new electrical systems meet regulations.
🔹 Self-Employed Electrician – Offer periodic inspection and testing services.
🔹 Compliance & Safety Officer – Work for businesses ensuring their electrical systems are safe.
FAQs About the 2391-52 Inspection and Testing Course
1. Can I take the 2391-52 course if I only have domestic experience?
Yes, but you should be familiar with three-phase systems and commercial installations.
2. Is the 2391-52 course difficult?
It’s challenging but achievable with proper study and hands-on practice.
3. How long does the course take?
Inspection and Testing last 5 days in our centre Learn Trade Skills
4. Where can I take the 2391-52 course?
Many training providers offer this qualification, including:
📍 City & Guilds Accredited Centres
📍 NICEIC Training Centres
📍 Local Colleges & Private Training Schools
Conclusion: Is the 2391-52 Inspection and Testing Course Worth It?
If you’re an electrician looking to expand your skills, improve your job prospects, and increase your earning potential, then YES, the City & Guilds 2391-52 qualification is worth it!
By mastering electrical inspection and testing, you not only enhance your career but also contribute to safer electrical installations across the UK.
👉 Start preparing today, and take the next step towards becoming a certified electrical inspector!
Sezai Aramaz is the esteemed founder of Learn Trade Skills, boasting over 40 years of experience in the electrical industry in the UK. With two decades dedicated to educating future electricians, he served as an Electrical Installation Lecturer and Assessor. Aramaz's expertise and commitment have contributed significantly to the growth and proficiency of aspiring tradespeople in the field.