01252 796 090

Electrical Extra Low Voltage, Systems & Circuits


This one-day intensive course has been written for technicians who have successfully completed the Test & Inspection course and now wish to develop their skills so that in addition to testing the electrical system they can identify problems, track faults and rectify them. This course, therefore, expands upon the skill base of the technician and allows them safely and competently to carry out a wider scope of electrical work as part of a touring caravan or motorhome service. 

COVID-19 UPDATE (29/10/20) -

Please note we are continue to put social distancing measures in place at all our training venues.  This will limit the number of candidates to each course. 


What will I cover on the course?

Expanding upon the service technician's test and inspection skills, the course will cover the following aspects of 12 volt electrical supply, safety, circuit tracing and battery maintenance in order to further develop their skills to identify, trace and rectify faults in the electrical system:

  • Electrical terms and their relationships
  • Circuit types, building, fault finding and diagnosis
  • Relays and relay circuit building
  • Battery technology, types, capacity, charging, safety and tests
  • Motor movers, generators and solar panels
  • ELV wiring, voltage drop and sizing
  • Preparing circuit and wiring diagrams
  • Carrying out circuit tracing and understand the use of diagnostic equipment
  • Fault types, open/short circuits, polarity and resistance

Following the successful completion of the course and the online assessment, the technician will receive the NCC Certificate of Achievement in Electrical Maintenance of LV/ELV Systems, Equipment & Circuits.

Learners must have previously completed the two-day Test & Inspection course before attending this programme.




NCC Members£295.00
AWS Members£320.00
Non-NCC Members£340.00

All prices exclude vat.


  • Advanced electrical training specific for caravan and motorhome service technicians.
  • One day tutor led classroom training.
  • Includes 12v electrical supply, track, trace and repair circuit problems, prepare wiring diagrams.
  • A core qualification requirement for Approved Workshop Scheme (AWS) membership.

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