[VAC] Re: an electrical question

["Dr. Gerald N. Johnson, electrical engineer" <geraldj@xxxxxxxx>]

Short cuts in safety wiring lead to deaths of the users.

120 volts arm to arm has a tendency to put a heart into fibrillation. A
heart in fibrillation stays in fibrillation until stopped with a
defibrillator or it dies from lack of circulation. Brain death happens
sooner, about 4 minutes after circulation is interrupted by
fibrillation.

The structure of an Airstream is NOT designed or assembled to be an
electrical safety conductor. Continuity testers do NOT test for low
resistance grounds capable of carrying short circuit currents and
shunting them from users of faulty appliances. Once a wimpy ground is
burned open the appliance user may die. I have cases of that in my
files.

Neutral and ground in the RV should not be connected. That connection
should only be at the service entrance panel of the campground, separate
wires for neutral and ground must be carried from service panel to user
pedestal receptacles. If neutral and ground are connected together
anywhere but at the main service panel, loosing a neutral connection,
will raise all down stream grounds to 120 volts, even with local ground
rods. And WILL kill.

Gerald J.