Re: 2 wire vs 4 wire Smoke allarms

[Frank Olson <Use_the_email_links@xxxxxxxxxxxxxxxxxxxxxx>]

robertlbass@xxxxxxxxxxx wrote:


> You might want to read NFPA 72.  That is the National Fire Alarm Code.
> NEC is the electrical code.


NEC refers to NFPA.  You *still* haven't provided specific wording to
refute my argument that doesn't involve "fire alarm systems".  A self
installed home security system is *not* a "fire alarm system".  A
professionally installed burglar alarm is also *not* a fire alarm system
*but* most professionals would *recommend* installation of a
*supervised* smoke/fire detection system.  As for replacing the 110 VAC
smoke alarms with a listed supervised smoke detector, most AHJ's would
tell you the same thing the guys in my jurisdiction say:  "As long as
the wiring to the 110VAC smoke alarms remains intact and can be
reconnected if the supervised detectors are ever removed we don't have a
problem.  Please ensure the high voltage wires are clearly marked and
physically separated from the low voltage cabling."