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Smoke Detectors #52171
05/21/05 08:25 PM
05/21/05 08:25 PM
E
Electric Ian  Offline OP
Member
Joined: Feb 2004
Posts: 133
MA, USA
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.

Work Gear for Electricians and the Trades
Re: Smoke Detectors #52172
05/21/05 08:33 PM
05/21/05 08:33 PM
L
Larry Fine  Offline
Member
Joined: Feb 2005
Posts: 693
Richmond, VA
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
Re: Smoke Detectors #52173
05/21/05 08:51 PM
05/21/05 08:51 PM
E
Electric Ian  Offline OP
Member
Joined: Feb 2004
Posts: 133
MA, USA
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?

Re: Smoke Detectors #52174
05/22/05 04:29 AM
05/22/05 04:29 AM
Alan Belson  Offline
Member
Joined: Mar 2005
Posts: 1,803
Mayenne N. France
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!
Re: Smoke Detectors #52175
05/22/05 11:18 AM
05/22/05 11:18 AM
I
iwire  Offline
Moderator
Joined: Jan 2003
Posts: 4,391
North Attleboro, MA USA
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
Re: Smoke Detectors #52176
05/22/05 01:01 PM
05/22/05 01:01 PM
S
Speedy Petey  Offline
Member
Joined: Aug 2003
Posts: 173
Upstate, NY
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
Re: Smoke Detectors #52177
05/22/05 02:14 PM
05/22/05 02:14 PM
E
Electricmanscott  Offline
Member
Joined: Jan 2002
Posts: 1,457
Holden, MA USA
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.

Re: Smoke Detectors #52178
05/22/05 06:59 PM
05/22/05 06:59 PM
S
Speedy Petey  Offline
Member
Joined: Aug 2003
Posts: 173
Upstate, NY
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
Re: Smoke Detectors #52179
05/22/05 07:26 PM
05/22/05 07:26 PM
I
iwire  Offline
Moderator
Joined: Jan 2003
Posts: 4,391
North Attleboro, MA USA
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
Re: Smoke Detectors #52180
05/22/05 09:44 PM
05/22/05 09:44 PM
S
Speedy Petey  Offline
Member
Joined: Aug 2003
Posts: 173
Upstate, NY
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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