[Amps] MOVs

[Carl]

A MOV does not catch on fire, its other components that are placed 
incorrectly that are the problem.

Carl
KM1H


------ Original Message ----- 
From: "Ken Brown" <ken.d.brown at hawaiiantel.net>
To: "Jim Thomson" <jim.thom at telus.net>
Cc: <amps at contesting.com>
Sent: Thursday, November 25, 2010 12:53 PM
Subject: [Amps] MOVs


> >
>>   A similar thing happened with garden variety  130 v rated MOV's....
>> too many house fires.  Modern MOV's  for 120/240 v use, will  have a 3rd 
>> lead sticking out [offset to one side]
>> and an internal fuse built into em.
>>
>>
> I don't understand how this can be a useful device. I thought that MOVs
> were supposed to draw lots of current, instead of letting it got
> elsewhere causing damage to more expensive and sensitive electronics. I
> had always thought of MOVs as sort of "sacrificial" devices, intended to
> blow up under the worst power surges, and mounted  inside a metal
> cabinet so that when they do blow up nothing else is damaged. I would
> never mount an MOV where it could set fire to something else.
>
> DE N6KB
> _______________________________________________
> Amps mailing list
> Amps at contesting.com
> http://lists.contesting.com/mailman/listinfo/amps