ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
Shout Box
Recent Posts
Air Compressor feeder conductor sizing
by Potseal. 01/15/18 09:08 PM
VDE 0100 to introduce AFCIs
by LongRunner. 01/15/18 11:38 AM
Under carpet cable?
by HotLine1. 01/15/18 09:57 AM
Any New Years Resolutions?
by Bill Addiss. 01/13/18 10:21 AM
New in the Gallery:
Housebilding DIY wiring
SE cable question
Who's Online Now
0 registered members (), 15 guests, and 11 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
Smoke Detectors #21516
02/04/03 10:49 PM
02/04/03 10:49 PM
A
Anonymous OP
Unregistered

I was told that smokies had to be positioned inside a bedroom (centered off the door) 12 inches back, from one electrician. Then another electrician told me that it doesn't matter where you position it, yet it needs to be in the room. What the heck is the truth. Is it code related? Also, what should the height of a receptacle be, if you are boxing a single unit home?

Work Gear for Electricians and the Trades
Re: Smoke Detectors #21517
02/04/03 11:13 PM
02/04/03 11:13 PM
L
lighthouse  Offline
Member
Joined: Jan 2003
Posts: 134
philadelphia pa 19125
The NFPA recommends smoke alarms be installed in EVERY room and area of your home or bulding for complete protection. For maximum protection, install at least one ionization and one photoelectronic smoke alarm on each level of your home.

All smoke alarms should be replaced after 10 years of operation. Ten years is a smoke alarm's useful lifetime and for continued, reliable safety and protection, smoke alarms need to be replaced.

Consumer's should consult their owner's manual for specific instructions when locating a smoke alarm. The following are some general guidelines:

Because smoke rises, smoke alarms should be installed on the ceiling or on walls at least 4 to 6 inches below the ceiling.

Smoke alarms should not be located less than 4 to 6 inches from where the wall and ceiling meet on either surface; this space is dead air that receives little circulation.

Smoke alarms should not be mounted in front of an air supply, return duct, near ceiling fans, peaks of A-frame ceilings, dusty areas, locations outside the 40 degree Farenheit to 100 degree Farenheit temperature range, in humid areas or near fluorescent lighting.

Re: Smoke Detectors #21518
02/04/03 11:16 PM
02/04/03 11:16 PM
N
nesparky  Offline
Member
Joined: Jun 2001
Posts: 642
omaha,ne
The positioning of smoke detectors is in NFPA 72 Fire Alarm Code. They need to be away from wall and ceiling corners. ALmost all smokes have installation instructions for spacing and distances. The reason is that a smoke detector in the wrong place will not see the smoke thus delaying any alarm. It's a life safety issue.
A common receptacle height is 18" to center of box. For ADA heights check with your AHJ.


ed
Re: Smoke Detectors #21519
02/05/03 12:16 AM
02/05/03 12:16 AM
B
bobp  Offline
Member
Joined: Oct 2002
Posts: 70
Puyallup, WA, USA
You need to check with the AHJ. Many have amended the codes or written their own for placement and requirement of smoke detectors. I have two towns around here that require the bedroom smokes to be inside the door (no more than 18"), but the county and other towns just require them in the bedrooms. And please don't make me try and explain where each one wants the hall smokes.
Bob

Re: Smoke Detectors #21520
02/05/03 01:54 AM
02/05/03 01:54 AM
E
Electric Eagle  Offline
Member
Joined: Apr 2002
Posts: 914
Alpharetta, GA
Our inspectors only want a smokey within 10 feet of every bedroom and one inspector recently told me not to put them inside the bedroom because of the new arc fault rule requiring all bedroom wiring to be arc fault protected and he didn't want the smokes on an arc fault circuit.

Re: Smoke Detectors #21521
02/05/03 11:50 AM
02/05/03 11:50 AM
P
pwood  Offline
Member
Joined: Feb 2003
Posts: 67
castella,calif usa
the building codes say to install per manufacturer's instructions and per the code. further states that one to be installed in each sleeping room and centrally located in the corridor or area giving access to the sleeping rooms.AHJ'S may require installation per local preferences so it's wise to ask before installation if possible.


Featured:

2017 Master Electrician Exam Preparation Combos
2017 NEC Electrician
Exam Prep Combos:
Master / Journeyman

 

Member Spotlight
Posts: 165
Joined: March 2007
Show All Member Profiles 
Top Posters(30 Days)
sparky 23
Admin 19
Potseal 13
Popular Topics(Views)
243,511 Are you busy
180,298 Re: Forum
170,800 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.6.1
(Release build 20180101)
Page Time: 0.014s Queries: 14 (0.003s) Memory: 0.9734 MB (Peak: 1.1193 MB) Zlib enabled. Server Time: 2018-01-16 17:31:07 UTC