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Old 17th Apr 2020, 11:35 am   #49
Radio1950
Hexode
 
Join Date: Apr 2017
Location: Buderim, Queensland, Australia.
Posts: 428
Default Re: Neon Tester Screwdrivers

Quote:
Originally Posted by evingar View Post
Quote:
Originally Posted by TonyDuell View Post
I was taught 'All wires are live until _you personally_ have proved they are not' I would never joke about isolating a circuit, but if you are working with me, I would not be insulted if you verified that. In fact I would expect it. Similarly I would hope you would not be insulted if I check the wires were dead. Anyone can make a mistake...
Standard procedure is to isolate the mains and lock off. In front of the person who is going to do the work test the tester with the proving unit. Test all phases and neutral with respect to one another and then with respect to earth. Again, check the tester with the proving unit and hand the person doing the job the lock off keys. If the person doing the work wants to double check that's fine.
That's correct.

Very few in the trade use neon screwdrivers.
These tradesmen are still alive.
They use rated DVMs and Test Sets.
If these are not available, work stops.

Most employers ban screwdrivers.
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