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It’s a good idea fro have one but you will be ok proving your meter on incoming, isolated outgoing and then back to your known incoming.
Discuss Tips for my first niceic inspection in the Certification NICEIC, NAPIT, Stroma, BECSA Forum area at ElectriciansForums.net
I have never used a proving unit.
Hang on, I think I did when I done my testing and inspection assessment..
The trouble I have with proving units is that I don’t trust them.
Are the nic going to want to see an approved voltage tester and proving unit? Or can I get away with using my fluke t5-1000 and proving it on a known source when doing safe isolation, which I’m assuming you’ll have to show?
What do you do when a live supply isn't readily available or safely accessible?
That's why you prove the avi before and after testing, it shows that both the avi and proving unit are working.
What I have done for the last 27 years is test the supply before isolating and then test it again after isolating it.. Then test the primary side again..
I have never been in a situation where I need a proving unit. I personally wouldn’t put my life or any one else’s in the hands of a proving unit..
Have you read through the niceic's guidance for new applicants? Questions like this are answered there.
There must be occasions however, when you test your supply before isolating and a tester indicates the supply is dead. How do you prove the voltage tester is not faulty, without access to a know live supply?
I personally do not own a proving unit , I carry 2 volt pens and a multi meter / martindale , so 3 fail safes and I have proved dead this way for over 20 years now.
If all 3 fail me then so be it....
However if the Scams insist on a proving unit for the site visit then I would buy a cheap one for assessment day to 'tick the box'
In my opinion this scenario could continue forever. 15 testers/proving units/voltage indicators down the line there is still no way of truely proving that all the instruments are in perfect working order
I’m all for the standard approach to safe isolation, by proving on a known source. My point is, that if you place your tester on your known source, and your tester does not light up, what do yo do then?
There are different "accepted" methods for proving isolation for electricians
There is only one single 100 % assured means of removing all danger of never getting it wrong,its a little drastic so cover your ears
The person needs to earn a living in a different occupation
Where is this?
Let’s face it there are times when you don’t really have a choice but to work live. If you can stay safe in this scenario then worrying about 100% sure safe isolation becomes a little obsolete
Reply to Tips for my first niceic inspection in the Certification NICEIC, NAPIT, Stroma, BECSA Forum area at ElectriciansForums.net
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