SW has discovered lightning [RE-wrenches]

[Ray Walters]

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Hopefully this is a related subject....

I just installed a SW2548+ and found that I had 0.35 amps AC current 
running down the chassis ground, Voltage when I unbonded the nuetral was 60 
vac Ground to nuetral. No, I didn't have nuetral bonded in more than one 
place , ground loops, etc. These same measurements where with everything AC 
disconnected from the inverter at its output terminals. NO, the amps didn't 
dissipate with time unloading a filtering capacitor . It was steady. Meter 
was a Fluke 89 inserted in the circuit.

Trace said it was normal operation of the filtering, and that if I measured 
it with a clamp on meter it would "disappear". Yea I said because clamp-on 
meters aren't accurate below an amp....
I said that the NEC doesn't allow current to flow on uninsulated ground 
wires. They told me to look at the inverter again to confirm if it had a UL 
sticker on it.....

So what do you think, is there a problem, or should I put my meter away and 
be quiet? ( I found the "problem", when I disconnected  the inverter 
chassis ground for a moment and drew a healthy arc.)
Seems to have some fire hazard / electrocution potential, especially when 
we're supposed to ground 12 vdc etc, etc..  Is this another: "Trace payed 
UL enough to pass this, but we can't do the same thing in the field deal"?

Ray

>I have done with my inverter that I suppose not is not kosher is not ground
>the chasis to any ground whatsoever. It is like the inverter shuts off to
>protect itself.
>
>SUNcerely,
>Frank Fowler

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