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#52171 05/21/05 09:25 PM
Joined: Feb 2004
Posts: 133
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When adding a smoke detector in a finished attic addition, is it required that it be interconnected to the other smoke detectors in the house.

#52172 05/21/05 09:33 PM
Joined: Feb 2005
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I believe so, and would want it done so anyway. What's the point of a detector where nobody can hear it?


Larry Fine
Fine Electric Co.
fineelectricco.com
#52173 05/21/05 09:51 PM
Joined: Feb 2004
Posts: 133
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I agree, I'm just a little concerned about compatability. Are most brand line voltage smoke detectors compatable with each other relative to being interconnected?

#52174 05/22/05 05:29 AM
Joined: Mar 2005
Posts: 1,803
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Most important is the location. A smoke detector must be placed so it can detect the fumes. In the wrong place, they won't detect anything till a blaze is well underway. We have one that goes off if we make toast with the kitchen door open- funny thing is, our Shitz-zui (supposedly a dog?) starts howling seconds BEFORE it goes off, so we got two!
Alan


Wood work but can't!
#52175 05/22/05 12:18 PM
Joined: Jan 2003
Posts: 4,391
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Depending on where you live smoke detectors may not be suitable for attic mounting.

Many have a minimum ambient temperature that they can be exposed to.

Here that rules out smoke detectors in unheated spaces. In these spaces we use heat detectors which are also interconnected.


Bob Badger
Construction & Maintenance Electrician
Massachusetts
#52176 05/22/05 02:01 PM
Joined: Aug 2003
Posts: 173
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I am surprised no one mentioned the fact that this is purely a local building code issue.
These requirements are nowhere in the NEC.

I suggest contacting a local AHJ office for the exact answer.

From a personal opinion, I would say yes, interconnect them. Also use the same (or compatable) brand.

*Typo*



[This message has been edited by Speedy Petey (edited 05-22-2005).]


Speedy Petey

"Anyone who has never made a mistake has never tried anything new." -Albert Einstein
#52177 05/22/05 03:14 PM
Joined: Jan 2002
Posts: 1,457
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Quote
Here that rules out smoke detectors in unheated spaces. In these spaces we use heat detectors which are also interconnected
This is not an adopted requirement however.

#52178 05/22/05 07:59 PM
Joined: Aug 2003
Posts: 173
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Quote
This is not an adopted requirement however.
In who's jurisdiction?
It seems it is a requirement in Bob's (iwire) area.

Like I mentioned before, different areas have different SD requirements.


Speedy Petey

"Anyone who has never made a mistake has never tried anything new." -Albert Einstein
#52179 05/22/05 08:26 PM
Joined: Jan 2003
Posts: 4,391
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Speedy, Scott and I live only about 45 minutes apart. [Linked Image]

Scott is correct, I did not mean to imply it was required.

My point really was do not install smoke detectors in unheated spaces.

If fire detection is wanted or required in these areas use heat detectors.


Bob Badger
Construction & Maintenance Electrician
Massachusetts
#52180 05/22/05 10:44 PM
Joined: Aug 2003
Posts: 173
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Sorry guys, didn't mean to stick my nose it didn't belong. [Linked Image]

I think we need a little spot for our locations like some other boards have. [Linked Image]


Speedy Petey

"Anyone who has never made a mistake has never tried anything new." -Albert Einstein
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