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Electrical Commissioning and Testing

Key Areas
Course content
Learning outcomes
Who should attend
How to book
Course fees


Key Areas

This module recognises that there is a need to integrate this testing with the commissioning of other electrical services. So the module also looks at the basics of commissioning of the following items as an aid to understanding the commissioning processes involved (by others, usually the manufacturer or a specialist contractor), rather than an in-depth knowledge of the subject:

  • Fire alarms
  • Lighting systems, including emergency lighting
  • Structured cabling, including fibre optic cable
  • Lift installations
  • Lightning protection
  • Transformers
  • High-voltage and low-voltage switchgear
  • Generators
  • Uninterruptable power supplies.

Course content 

  • Continuity of protective conductors
  • Continuity of ring circuits
  • Insulation resistance
  • Testing of SELV, PELV and FELV
  • Barriers and enclosures
  • Impedance of walls and floors
  • Polarity
  • Earth electrode resistance testing
  • Protection by supply disconnection
  • Earth-fault loop impedance
  • Additional protection (RCDs)
  • Prospective fault current
  • Phase sequence
  • Functional Testing
  • Verification of voltage drop
  • Certification

Learning outcomes 


Having studied the module, users should be able to:

  • Understand the testing requirements of BS 7671, and how all the above tests are carried out.
  • Enable the user to prepare a full specification prior to the commencement or alteration of any electrical installation.
  • Understand both the need and precisely what detailed design information is required for a competent person to test and commission and installation.
  • Assist in the provision of commissioning procedures.
  • Assist in the preparation or specifying the needs of operational manuals and maintenance schedules, ‘as fitted’ drawings etc.


Who should attend

CIBSE online learning courses are suitable for those wishing to enhance and support their current knowledge base, as well as graduates within an engererial diciplin. 

Each unit has been peer reviewed and tested through this group. The units allow students to take a coordinated journey through an individual topic or a series of topics. The units form the backbone of several corporate training schemes.

How to book 

Visit CIBSE's new online learning portal at onlinelearning.cibse.org

Course fees 

 £300 (£360 inc vat)

Corporate subscribers, please contact Charlotte Stubbs cstubbs@cibse.org