Re: [APD] Aromat Ballasts Arrived

["S. Hieber" <shieber at yahoo_com>]

Almost anything you connect wouldn't mind. You'd still get the same 110-120V AC. Maybe a problem for device running balanced circuit or with an internal floating ground but with a grounded chassis (some PA amps and high priced audio amps are like this) -- you'd get an annoying hum loop with the hum showing up in the audio circuit. Your're prob is diff, you have a chassis vibration. 
 
There are some safety issues re ground-neutral crosses, which is why UL approved GFCI devices, besides testing for Hot-to-ground faults, have to include a second internal circuit to test for Neutral-to-ground faults. They have an energized coil around Hot and Neutral at all times. Neutral is grounded at the main box, so if there is a neutral to ground leak downstream form the GFCI,  that will make a closed circuit through the neutral and ground wires from the leak point back to the main box, and the current flow in the neutral wire won't be the same as the Hot wire, so the GFCI will trip on the imbalance inthe hot and Neutral wirest. Kind of ingenious, in way.
 
sh
 


----- Original Message ----
From: Jerry Baker <jerry at bakerweb_biz>
To: aquatic plants digest <aquatic-plants at actwin_com>
Sent: Sunday, February 05, 2006 10:51:58 AM
Subject: Re: [APD] Aromat Ballasts Arrived


S. Hieber wrote:
> Incredible. In the small expense category, generally the three LED plug in models check for correct, open ground, open neutral, open hot, hot-ground reverse and hot-neutral reverse fault conditions but rarely are they capable for Ground-Neutral Faults or Ground Neutral swaps upstream. What makes the Ground and Neutral swap a problem, as Jerry noticed, is that the neutral is grounded back at the main box.

That's why I decided it doesn't matter too much if they are swapped. If 
all the electricity in a normally functioning circuit was going to 
ground and the grounding plane was connected to neutral everything would 
still work the same as far as I can tell.
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