correction or not??

[wireit1@sota]

hello
I had a code call in a res install. regular firex 120v intertied s detectors looped with 14/3 nmb.on g lighting cuircuit call was 760 26 b nplfa outlet circuit will not be used to extend lighting circuits. well if this is tru I have been screwing up my whole career(usually run sd with lightly loaded lighting circuit and feed misc lights all over house off circuit so people don't use breaker to silence sd?? what do you think?? Thanks k

 

[russ]

Re: correction or not??

I can't find the wording that you are describing 760-26(B) with. I checked the 2002 and 1999 NEC.

 

[hbiss]

Re: correction or not??

I can't see how 760-26(B)would have anything to do with this however I do get your point.

It all boils down to whether residential 120v interconnected smoke detectors constitute an NPLFA system. Article 760 is not clear on this but I think the intent is that NPLFA detectors and other equipment work behind or with a fire system panel per FPN 1.

 

[websparky]

Re: correction or not??

2000 NFPA 1 NFPC
7-7.1.1
Where building fire alarm systems or automatic fire detectors are required by other sections of this Code, they shall be provided in accordance with this section and NFPA 72, National Fire Alarm Code?.

2002 NFPA 70 NEC
760.1 Scope.
FPN.........For further information on the installation and monitoring for integrity requirements for fire alarm systems, refer to the NFPA 72?-1999, National Fire Alarm Code?.

2002 NFPA 72 NFAC
11.1 Application.
11.1.1* The performance, selection, installation, operation, and use of single- and multiple-station alarms and household fire alarm systems shall comply with the requirements of this chapter.

 

[hbiss]

Re: correction or not??

Still doesn't answer the question. Are they a system?

 

[pierre]

Re: correction or not??

If you read the fpn to 760.1, you will better understand that line voltage smoke detectors are not part of a 'system'.

K
You can be glad that you have not been screwing it up all your career

A quote out of Noel Williams' book, Limited Energy Systems, p. 108 & 109.
"However, in order to be listed and considered as a fire alarm system, the components of the system must be connected to and monitered by a central panel such as the one shown in figure 4.1. Article 760 is primarily concerned with those systems that have a central control panel and not with interconnected stand-alone detectors such as those commonly used in new single-family homes."

The UL White Book has a wealth of information in, General information for Selected Categories from the Fire Protection Equipment Directory. Which I am too lazy to type/paste

Pierre

 

[wireit1@sota]

Re: correction or not??

I didn't think so thanks for your help!
K