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Old 10-06-2009, 05:13 PM
ah-kay ah-kay is online now
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Join Date: Mar 2009
Location: San Diego
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Power to heat equation

Quote:
Originally Posted by Brian Carlton View Post
There's ample evidence on the forum that heat is definitely a result of high current across those fuses. The problem is so bad on the blower motor that M/B has a completely separate shunt to bring the power outside of the box.

Although clean contacts are certainly beneficial, the temperature issue with high current draw is not going to be eliminated.
If I still remember my physic from University - heat is generated because there is resistance in the line. Power = I^2R. Power is dissipated as heat or other mechanical form. If R = 0 then there is no heat. Power = I ^ 2 (0) = 0. It could be a million Amp but there would still be NO heat, through the fuse or contacts. In otherwords, the fuse can be made of plastic and in fact most of them are.

Fuses are made of all kind of alloy, I would not limited myself to copper, bronze type of fuses as they are made to specification and it fits the application.
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Last edited by ah-kay; 10-06-2009 at 05:14 PM. Reason: typo
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