[Healeys] fuse

Bob Spidell bspidell at comcast.net
Sat Oct 16 08:42:36 MDT 2021

Fuses blow when excessive current--above the fuse's rating--is drawn by 
one or more loads on its circuit; i.e. a short (slow-blow fuses allow a 
momentary high draw before blowing, like a Healey's O/D circuit). If a 
fuse has excessive resistance, it limits the current somewhat (like one 
of its loads). Effectively, it becomes a resistor. Fuses don't--or 
shouldn't--offer much resistance, excessive resistance usually comes 
from its connector or housing.

On 10/15/2021 9:05 PM, healeymanjim via Healeys wrote:
> knowing enough about electricity to be dangerous, i wonder why the fuse did not blow if there was that much resistance?

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