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Mike Henry Mike Henry is offline
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Default Arc flash protection at 476 volts


"Ignoramus30685" wrote in message
...
As I will sometimes test used 460v equipment, using my 240 - 476v, 45
kVA transformer, I would like to somewhat enhance my safety, in
regards to "arc flash" and other such problems.

What I want to do is this:

1) Wear heavy cotton clothing, like a work jacket
2) Wear a welding helmet
3) Stand on a piece of wood
4) Operate stuff with one hand only
5) As I turn something on, have my employee stand by and hold a handle
of a disconnect leading TO the transformer.
6) If he sees or hears anything untoward, he would be instructed to
immediately turn the disconnect off.

Does this make sense?

i


You need better research than can be done on a newsgroup. Try finding NFPA
docs on arc flash and how to protect from them. Email me (I don't get here
often anymore) if you want a DOE document on electrical safety that has some
good background info in it and is easy to understand. You might also visit
Mike Holt's site - http://www.mikeholt.com/. It's for professional
electrical engineers and electricians so tread carefully in the forums.