Re: Why Pos Ground

Posted by Janicholson on August 11, 2005 at 06:53:53 from (199.17.6.77):

In Reply to: Why Pos Ground posted by Ia Gary on August 11, 2005 at 05:48:38:

There is a difference, but it is totally irrelevant. Ask a certified AWS welder, sparks from a positive electrode, to a negative work piece (Reverse Polarity in Welding terms)Polarity changes the amount of heat going into the workpiece. In straight polarity, the majority of the heat is directed toward the workpiece. In reverse polarity, the heat is concentrated on the electrode. (Modern Welding Text).
With that said, the materials in modern plugs, and less lead in the fuels (yes lead is hard on plugs)lets them last 5 times longer than of old. it makes no appreciable difference at the plug.
Because the jump starting of vehicles incorrectly is dangerous/expensive/useless, and because probably less than 10% of the people (Im being optimistic)know how to jump correctly with real jumper cables with fat wire, and because sourcing for electrical components beacme less propriatary (outsourced), the move was made to standardize on neg. ground.
Hope it helps!
Jim Nicholson

Follow Ups:

• Re: Why Pos Ground Bob 07:41:33 08/11/05 (2)
  • Re: Why Pos Ground Farmall450man 10:34:31 08/11/05 (1)
    • Re: Why Pos Ground John T 12:52:02 08/11/05 (0)

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