Bowie69 Posted November 30, 2011 Share Posted November 30, 2011 Ugh, ditto, I understand about earth loops and such, but running a good earth straigh from battery to a distribution point, and then making sure you earth the individual components back to it will not cause this. Quote Link to comment Share on other sites More sharing options...
LandyLee Posted November 30, 2011 Share Posted November 30, 2011 Ugh, ditto, I understand about earth loops and such, but running a good earth straigh from battery to a distribution point, and then making sure you earth the individual components back to it will not cause this. that was star earthing if I remember , My point is you have a car that is made of metal and capable of carrying hundreds of amps of currrent to the circuit you need so why run two separate wires to the device when you can run one and use body to pass current back to battery. if you can imagine , passing 70A of current through a long cable causes a voltage drop , with two of these wires you have twice the drop and hence also less supply to the circuit. As I said earlier as well you are then floating the device slightly above earth compared to other devices connected to battery. this used to cause hell in some situations Quote Link to comment Share on other sites More sharing options...
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