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S4 - The safe Operation of High Voltage Power Systems (Full High Voltage Authorisation) Reviews
Showing 4 star reviews : View all 853 reviews
Romain A, 12 Sep 2025
Redcar
Verry Nice course. Verry Nice instructors
Samul K, 15 Aug 2025
The course has been really good as it has impacted my experience on high voltage systems.
Balamurugan G, 18 Jul 2025
Redcar
Overall S4 course and course materials are good. Learned switching programs and operation are helpful to work on field. ( commissioning of the Generator and BESS system)
Gareth J, 13 Dec 2024
Redcar
Course was demonstrated well with good presentation and good practical work. Mike and Norman were both great and give you any extra work of required.
Paul C, 03 May 2024
Redcar
Lots of practical opportunities and able to see a diverse tree range of equipment. Both tutors, experienced, supportive and good mentors.
Brian T, 03 May 2024
Redcar
Good course and instructors.
Ali A, 02 May 2024
Redcar
Course very good Good environment All equipment there Hand tools Good explanation
Graeme J, 23 Feb 2024
Redcar
Was a bit disappointed regarding course handouts, these where giving on previous courses and now they cost and additional £25 per person after spending £6000 on the courses, also the exercise hand outs are no longer giving and you have to go and look at the single line diagrams in the exercise hall which are incorrect. I heard whispers that you are losing business to Pass, I'd maybe address the above points and bring the standards back to where they were on previous courses I have attended. Overall though still a great training facility.