[TenTec] Using Airpax breaker

Ken Brown ken.d.brown at hawaiiantel.net
Sun Jun 18 20:53:24 EDT 2006


I would like to point out a few things about circuit breakers versus fuses.

1) I made no recommendation one way or the other.

2) I suggested that my intuitive sense that fuses may be faster is quite 
possibly contradicted by the efforts of engineering put into both fuses 
and circuit breakers.

3) I suggested looking at specifications to really know.

If you find  any of that to be bad or dangerous  advice, then you are 
very sorry.

N6KB


>
>   
>> Specifications for both fuses and circuit breakers are probably
>> available, which would include the amount of time that it take to
>> transition from closed to open after an over current condition begins.
>> When I think about the mechanics of a circuit breaker versus a fuse, and
>> the amount of mass which has to move in order for the path to open in a
>> circuit breaker versus a fuse, I find it easier to believe that the fuse
>> is faster. Some very smart engineers have put a lot of effort into
>> designing both fuses and circuit breakers, and it may be the results of
>> their efforts contradict my intuitive sense that a fuse opens faster.
>> Comparison of specification sheets ought to settle it.
>>
>>
>>     
>   



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