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Re: Smoke Detection in a large enclosed venue
On 11/9/2020 1:42 PM, Jim Davis wrote:
> On Monday, November 9, 2020 at 10:03:08 AM UTC-5, ABLE1 wrote:
>> Hey guys,
>>
>> This is a I don't know question and looking for a answer
>> thingie. This is not for a project or job just curious.
>>
>> My brother, (who only guesses an answer since he doesn't
>> really know one way or the other). Mentioned to me the
>> other day that he heard that some large group was playing
>> at a venue and because of there FOG MACHINE it tripped off
>> the FIRE ALARM. He then said that they must have replaced
>> the smoke detectors to units that can only see smoke and
>> not FOG. Well I said to him that they more than likely
>> turned off the smokes while the FOG was there and then
>> turned them back on later because the smoke detectors
>> can't tell the difference between smoke, dust, spiders and FOG.
>>
>> What this did was made me think what a Alarm Company would do
>> in the case to actually meet code compliance??
>>
>> Beam Detectors can maybe be adjusted somehow or to maybe off.
>>
>> Heat Detectors can surely work and not be effected but for
>> heat only. Not a good thing and really not code.
>>
>> Ionization Smokes maybe not sure............ doubt it.
>>
>> Turn off, and station multiple human bodies for a fire watch
>> during the event to yank on a Pull Station if there is a
>> real fire event observed.
>>
>> Get a variance with the jurisdiction to allow something other
>> than smoke detectors during an event that uses FOG Machines.
>>
>> Anybody know or been involved is something like this??
>>
>> Again just curious.
>>
>> Thanks,
>>
>> Les
>
> I"ve never used them but beyond photoelectric and Ionization there are also flame detectors. Usually used in large areas.
>
Hi Jim,
Now that is interesting.............. So would that be more
of some kind of a video temperature sensing device of sorts??
Les
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