Re: Smoke alarms

[nick markowitz <nmarkowitz@xxxxxxxxx>]

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 batteries
> >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 does
> 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-system
> sensors.
>
> The 10 year thing doesn't apply to system smokes because they are tested
> at least annually, and commercial smokes have swap-able/cleanable
> sensing chambers. =A0They also have ample backup power, and are supervise=
d
> 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.