Inspection and Testing CG2391-51 L3

Your learning will be underpinned by a range of practical application, through understanding:

• the continuity of protective conductors
• the continuity of ring final
• insulation resistance
• earth electrode resistance
• polarity and phase sequencing
• earth fault loop impedance (Ze and Zs@DB)
• prospective fault current
• earth fault loop impedance (Zs) RCD

The test specification for this qualification:

• Multiple-choice online test: Periodic Inspection and Testing of Electrical Installations. Duration: 90 minutes / Number of questions: 40*
• Practical assessment: Visual inspection of Electrical Installations. Duration: 30 minutes (closed book)
•  Practical assessment: Periodic Inspection, Test and Report of an Electrical Installation. Duration: 2 hours#
•  Written paper – short answer questions: Periodic Inspection and Testing of Electrical Installations. Duration: 1 hour*

* This is a “open book” exam, so candidates can refer to BS7671, GN3 and On-Site Guide during the exam.

# Candidates may refer to BS7671 or GN3 for verification of compliances only, not as a full guide to testing.

Course information

Course title: City & Guilds 2391-51

Certificate: Level 3 Award in Periodic Inspection and Testing of Electrical Installations.

Duration: 4 days, plus study time.

Class times: 08:30-16:30

Course fee: £625 (includes registration and exam fees).

This qualification is intended for those who have previously gained qualifications in Initial Verification, (2391-50) or (2394), and wish to expand their skills to include reporting on the condition of existing electrical installations. 

Candidates must have knowledge and understanding of electrical science and principles, and experience in electrical installation work, either within the electrical contracting industry or an allied trade.

A relevant qualification, such as City & Guilds 2360, 2330, 2357, or a level 3 2365 would be sufficient evidence of this.

Candidates should also hold a current 18th Edition Edition qualification.

Candidates must be aged 18+ .

This course allows candidates to progress to the Level 4 Award in Design and Verification of Electrical Installations (2396).