my answers are guesses too.
the Codes were not good (when these were
written) about including intent.
1. agree with you
2. same reason as # 1, regardless of "hanging out on a balcony",
it simply is hard work humping enough hose to reach the 3rd
level...., much more hard work flaking out hose if stair-turns were
made too tight, or worse, flaking the hose out after it was dumped
in a spaghetti nest at the fire floor before the hose was charged.
3. fighting fires that need be accessed by going down stairs in
is hard work. Think " i am going down a hot chimney." It is
dangerous accessing sub-grade-level fires for this reason. You
want a source of water close to the fire, you don´t want to run
out of hose down there.
4. same.
scot deal
excelsior fire
On Feb 20, 2008 5:08 PM, Reza Esmaeili <[EMAIL PROTECTED]> wrote:
> As per NFPA 1 Section 13.2.2.2 & also NFPA 5000 Section 55.4.1:
> New buildings shall be equipped with a Class I standpipe system installed
> in accordance with NFPA 14, Standard for the Installation of Standpipe and
> Hose Systems, where any of the following conditions exist:
> (1) The building is more than three stories above grade.
> (2) The building is more than 50 ft (15 m) above grade and contains
> intermediate stories or balconies.
> (3) The building is more than one story below grade.
> (4) The building is more than 20 ft (6100 mm) below grade.
>
> I would like to know the logic for such requirements, in my opinion, the
> logics for each item is as below:
>
> (1) The building is more than three stories above grade.
> MY LOGIC: "It is difficult for fire fighters to pull hose to floors
> above grade more than three stories as it will become heavy weight when
> water is flowing, that's the logic for three stories limit in NFPA 1 and
> NFPA 500 also 30 ft. limit in IBC section 905.3.1.
>
> (2) The building is more than 50 ft (15 m) above grade and contains
> intermediate stories or balconies.
>
> MY LOGIC: As the building has balconies, so fire fighters can stand
> there & tolerate to pull longer hose & that's the logic for 50 ft. limit.
>
> (3) The building is more than one story below grade.
> I Don't know why one story limit, why not three stories below grade?
>
> (4) The building is more than 20 ft (6100 mm) below grade.
> I Don't know why!
>
> Thanks for sharing your valuable knowledge & experiences in advance.
> Reza
>
>
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