I believe the important thing here is that a three wire plug be used and
that it gets wired correctly. I will never see why the neutral which is
grounded and green wire which is ground cannot be tied together. The
key here is that the plug can not get reversed like it could with the
two wire plug so getting hot AC on the chassis can never happen. If the
socket is miswired than as soon as you plug in your radio with the green
and neutral tied together your main fuse will blow. I sure would like to
know what certain wiring failure modes could energize the chassis ?
Ground is Ground period. If the original two wire plug would have been
polarized in the very beginning I expect that three wire plug would have
never happened.
Chuck Harris wrote:
wrote:
This is indeed the case for the FT-101E whose schematic I just
examined. What I did was remove the 2-wire cord, and then connect a
3-wire cord where plus and minus hot were in former locations, then
soldered the neutral wire of the cord to the plug's ground pin. Hope
that would work. The voltage divider effect bears out in the fact that
my original exposure to the AC was not immediately fatal.
I think from now on, I should NEVER operate a rig powered by a 2 wire
cord.... I should always replace with 3-wire on general principles.
The Eternal Squire
NO! Don't do that! The hot goes to the + hot, and the neutral goes
to the - hot, and the green wire goes to the chassis.
Never, never, never connect the neutral and the green wire together!
(Did I mention never?)
The only place in the whole house where that is supposed to happen is
in the service panel where the power comes into the house. Everywhere
else, it must remain separate. The bond wire (green) is purely for
safety. It saves your butt when currents accidentally leak out to
the chassis. If you have the bond connected to the neutral side of the
powerline, it can energize the chassis in certain wiring failure modes.
Please don't leave it that way, save some poor soul's bacon, and go back
and fix it correctly.
Thanks,
-Chuck