Why Does Code Note Require Gfci Breakers On Electric Water Heaters? 2

ampman

what is this infraction you speak of

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an army of sheep lead by a lion will defeat an army of lions lead by a sheep

Inner10

Yeah, but the point of the story was the addition of the second bridge lowered the overall resistance between the 2 cities. Adding a highly resistive path to ground still reduces overall circuit resistance (since its in parallel).

Assuming were talking about flow along a solid metal there would be no proton flow no?

Anti-wingnut

Only electrons move around helter skelter from the nucleus. It takes a quatuum mechanics and nuclear reactions before protons move around.

Celtic

Mags...Do you have copy of the Grounding PPT I sent out a few years back?


[NOTE: This is NOT my PowerPoint Presentation...I DO have permission from the author to send it out]

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macmikeman

Im a mere electrician not a nuke scientist, but as I understand nuke physics it is the flow of empty spots not electrons that define electrical current. Now that is going to be really hard for me to explain to any lurking plumbers so I say go get the magazine and read for yourself.....

But don't try to comment about it until understand it ok? Same goes for the unrelenting thank you buttons.......

macmikeman

Celtic, I have it, I will send it to your pm

macmikeman

Not so fast Genius Macmikeman, there seems to be no way to add an attachment via the pm method... Ok Celtic, tell me the path and I will send it to you.

Celtic

Thanks Mac....I have it.

I didn't have it ~ because the comp. that it was on took a dump ~ but George had a link on one of his FAQS...so now I do have it.

Did ya follow all that?


TY again

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macmikeman

Sorry I ducked out for a while in order to pollute the sister site with some more of my nonsence..... Glad you found it.

Celtic

I'm on round 2 over there

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newenergy

Empty spots don't really move though, it's just that electrons are negatively charged (purely by convention) and mathmatically current flows the opposite direction. And, electrons in a conductor don't just move through space randomly, they jump from hole to hole, so it would appear like the holes move in the opposite direction.

Still this is a simplification because electrons are really waves and only have a certain probability of being anywhere at any time and it all works as a sort of average of the positions of the electrons, not really for specific electrons which could be doing all sorts of crazy things.

That's my 2 cents anyway, but I'm not a physicist or anything.

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Also, seems to me that there are cases where GFI could protect people in a lot of areas where they aren't used. Any fault to an improperly grounded appliance located near a properly grounded appliance sets up a situation where a GFI could prevent shock. A loose neutral at the panel or transformer could set up a situation where a GFI could prevent a shock to anyone working on the plumbing. Of course GFIs aren't fool proof and you can still get shocked if you are part of the circuit between hot and the correct neutral, but it doesn't seem unreasonable to say that GFIs should be more widely used.

That's my 2 cents anyway, I have a C10, but I really only do solar. (The inverters have ground fault protection)