Re: Smoke alarms

[zig <wallstreet123456@xxxxxxxxx>]

On May 4, 7:31=A0am, nick markowitz <nmarkow...@xxxxxxxxx> wrote:
> On May 4, 5:34=A0am, G. Morgan <usenet_ab...@xxxxxxxxx> wrote:
>
>
>
>
>
> > Harry Wrote:
>
> > >The US National Fire Protection Association (NFPA) have issued NFPA
> > >Standard 72, National Fire Alarm and Signalling Code (2010 edition),
> > >which states:
>
> > >=93Replace all smoke alarms, including those that use ten-year batteri=
es
> > >and hard-wired alarms, when they are ten years old or sooner if they
> > >don=92t respond properly when tested.=94
>
> > I don't have the 2010 edition, and it's not used yet anyway. =A0What do=
es
> > the whole section read? =A0You skipped the "must, shall, or should".
>
> > >This would indicate to me that the type of power supply is fairly
> > >immaterial.
>
> > No, from what you posted it looks like they are talking about non-syste=
m
> > sensors.
>
> > The 10 year thing doesn't apply to system smokes because they are teste=
d
> > at least annually, and commercial smokes have swap-able/cleanable
> > sensing chambers. =A0They also have ample backup power, and are supervi=
sed
> > 24/7.
>
> > Any detector you buy at Lowe's, Home Depot, etc.. needs to be tossed
> > every 10 years because it's a consumer product.
>
> I have not found any code . It is a recommendation. on smoke alarms.
> but most consumers do not know difference between a smoke alarm and a
> smoke detector.- Hide quoted text -
>
> - Show quoted text -

Should the optical chamber be replaced at certain intervals or only if
there are issues with the smoke detectors?