Re: Ademco Vista-15 Install Manual

["R.H.Campbell" <rh.campbell@xxxxxxxxxxxxx>]

I was using the standard white DSC transformer (with the external
LED)....dunno if that one is fused or not !  And yes, the actual fire didn't
start until I actually opened the can allowing oxygen to enter freely.
Previously, the can was full of noxious smoke which kept things from
igniting....

RHC


"Nomen Nescio" <nobody@xxxxxxxxx> wrote in message
news:61a48f8a5adb87e155e0cf82e67c9346@xxxxxxxxxxxx
> RHC said:
>
>>I did have an 832 catch fire and nearly burn a place down. The AC
>>rectifier
>>fried and overheated. When I got there, there was foul smoke everywhere,
>>and
>>as soon as I opened the can, the whole mess went up in flames.
>
> I'm curious as to whether this panel was powered by a transformer with an
> internal fuse.  It would seem to me that if the rectifier were fried, it
> would be pulling enough current to blow the transformer fuse.
>
> In any case, you've made another interesting point:  there's only a
> limited
> amount of oxygen inside an alarm panel to support combustion, and air
> circulation through the knockouts isn't likely to bring in a fresh supply.
> So even if something overheats, the likelihood of a fire breaking out  of
> the can seems pretty low.
>
> - badenov
>