James,
I worked for the NIE in Northern Ireland. I was engaged in the delivery of HV training and associated courses. If you are simply looking to expand your knowledge you will do no better than explore many superb sites on the internet.
If it is competence accredidation you are seeking you will pay a considerable price for it. A simple HV authorization 5-day course with NIE was around £ 1500 plus vat!
It is good to see someone thirst for further knowledge, but believe me, education in such specialised areas is often simply a matter of tapping into the right web sites.I have bucket loads of notes furiously taken during lectures that I have attended from time to time in an effort to keep my CPD flowing. I could have sat at home and trawled the net in comfort and still have acquired the same information.
