Re: Fire Side Chat -- Fire Alarm Code Issue

["Doug L" <vssdoug@xxxxxxx>]

 [sigh]  This is so basic that even RLB ought to know it.  Note the phrase
"except fire warnings in dwellings" below. Anyone who actually does this
stuff for a living ought to be familiar with the code, however since you
don't do this for a living you are excused for referencing the wrong
sections..

1-5.1 states
The provisions of chapter 1 shall apply to chapters 2 through 7
The basic requirements for all fire alarms, except fire warnings in
dwellings, are contained in chapter 1, Chapter 8 is a stand alone chapter
with specific requirements for detection in residential family occupancies
such as single-family homes, apartments and condomininiums.


Furthermore the section you quoted 1-5.3 is irrelevant for two reasons,one
the above section referenced by you points to chapter 8 for residential
requirements and two, 110VAC smoke detectors do not draw their their power
from a fire alarm as referenced in 1-5.3 quoted by you


 Throughout this thread you don't seem to be able to grasp the difference
between Alarm Control Panels with system smoke detectors and interconnected
110VAC smoke detectors.


Doug L


Robert L. Bass <robertlbass@xxxxxxxxxxx> wrote in message
news:n-KdnaJAHdyJlvDfRVn-rQ@xxxxxxxxxxxxxx
> > IMO this is wide open to interpretation
> > by the AHJ, since using auxilary contacts...
>
> [sigh]  This is so basic that even Doug ought to know it.  Note the word,
> "fundamentals" below.  Anyone who actually does this stuff for a living
> ought to be familiar with the code.  Those who don't know are welcome to
> speculate as to whether some inspector might or might not allow them to
use
> a non-listed device in a manner which is non-compliant.
>
> "NFPA72  FUNDAMENTALS OF FIRE ALARM SYSTEMS 72-21
> 1-5 Fundamentals.
> 1-5.1 Common System Fundamentals.
> 1-5.1.2 Equipment.  Equipment constructed and installed in conformity with
> this code shall be listed for the purpose for which it is used."
>
> "1-5.3 Compatibility. All fire detection devices that receive their power
> from the initiating device circuit or signaling line circuit of a fire
alarm
> control unit shall be listed for use with the control unit."
>
> Regards,
> Robert L Bass