What causes fuses to blow?

Answer

Blowing of the fuse is caused by numerous reasons which are triggered when an appliance draws an excessive current. Some of the prime reasons for excessive current include mismatched loads, overloading, device failure and short circuit. The fuse blows to prevent damage on the appliance that may result from fire or overheating.
Q&A Related to "What causes fuses to blow?"
Fuses come in all types and varieties, but they all work in a similar fashion. Current passes through the fuse via a small metal strip or a spring; that small metal strip creates
http://www.ehow.com/info_8795525_causes-ignition-f...
a short in the wiring system. A blown fuse is caused by a short or an over current condition.
http://wiki.answers.com/Q/What_causes_an_ignition_...
Often, a fuse will blow due to a momentary overload.Thanks!
http://www.chacha.com/question/what-would-cause-a-...
pullin 2 much juice man or somethings shorted out or isn't completely into the outlet and got in contact with something metal. Source(s) i know stuff.
http://answers.yahoo.com/question/index?qid=200901...
1 Additional Answer
Ask.com Answer for: what causes a fuse to blow
What Causes Fuses to Blow in Cars?
Electric fuses, in any application, are designed to fail when too much amperage runs through them. They are designed as a weak point to protect the rest of a given circuit from damage and fire, to and prevent electric shocks. Fuses blow by heating up and... More »
Difficulty: Easy
Source: www.ehow.com
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