The danger lies in the fact that the ground fault interrupter gets bypassed
if you strap the ground and neutral wires at the appliance. The fault
(leakage) current has to have a separate path to ground in order for it to
work. If the appliance develops a short to the casing, and your strap is in
place, the case will be hot and the GFI won't sense it. Under these
circumstances, no matter the path the phase current and the neutral currents
will remain equal, thus defeating the GFI.
Alex 4Z5KS
-----Original Message-----
From: amps-bounces@contesting.com [mailto:amps-bounces@contesting.com] On
Behalf Of Bill, W6WRT
Sent: Wednesday, November 04, 2009 6:04 AM
To: amps@contesting.com
Subject: Re: [Amps] TL922 Power Plugs
ORIGINAL MESSAGE:
On Tue, 3 Nov 2009 21:49:13 -0500, "Carl" <km1h@jeremy.mv.com> wrote:
>
>The danger is some big hungry rat or an evil person will remove your
>neutral wire which will return you to the dark days of a 2 wire non
>polarized outlets and plugs. Just think, you may only have a one wire
>system then and will have to carefully reach around until your hand finds
the missing path.
>How some of us survived to talk about them confounds the rules makers.
REPLY:
That wasn't my question. Please forgive me if I wasn't clear enough.
My question was this: I understand why it is necessary to bond ground and
neutral together at the service box, but I don't understand why it is
forbidden to bond them together at the appliance.
There must be a scenario which causes danger but I just can't imagine what
it is.
73, Bill W6WRT
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