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An Answer For Negative Grounding Of Vehicles
There has been a lot of discussion on negative vs. positive grounding of vehicles here including a thread I started a while back.
The reason given for negative grounding was to standardize grounding in vehicles.
http://www.automotiveforums.com/vbul...tive+grounding
Today I came across this article with this bit of information about WHY they chose negative vs. positive grounding:
Quote:
Why Are Vehicles Negatively Grounded? The best explanation to this question comes from a 1978 Rolls-Royce Enthusiasts' Club service manual.
"...it has been found that cars wired positive earth [ground] tend to suffer from chassis and body corrosion more readily than those wired negative earth. The reason is perfectly simple, since metallic corrosion is an electrolytic process where the anode or positive electrode corrodes sacrificially to the cathode. The phenomenon is made use of in the "Cathodic Protection" of steel-hulled ships and underground pipelines where a less 'noble' or more electro-negative metal such as magnesium or aluminum is allowed to corrode sacrificially to the steel thus inhibiting its corrosion."...
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http://jgdarden.com/batteryfaq/carfaq2.htm
So the reason they chose negative grounding was to lessen corrosion on the body of the vehicle.
Any comments and confirmation appreciated. I found this very interesting.
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That if thou shalt confess with thy mouth the Lord Jesus,
and shalt believe in thine heart that God hath raised him from the dead,
thou shalt be saved.
For with the heart man believeth unto righteousness;
and with the mouth confession is made unto salvation.
Romans 10:9-10
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