For spacing it would be nice if instead of "L" and whatever that other
one is and words like perpendicular we used x-y coordinates.
Deflector distance could be z...
It's a 3D world afterall.
Brad
Quoting JD Gamble <[email protected]>:
This was actually my mindset. And perhaps misplaced concern. Do I
have to match surrounding sprinklers to accommodate a door? Maybe
I’m overthinking it?
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________________________________
From: Sprinklerforum
<[email protected]> on behalf of
Kyle.Montgomery <[email protected]>
Sent: Wednesday, June 20, 2018 9:04:10 AM
To: [email protected]
Subject: RE: [EXTERNAL] Re: Staggering ESFR
Maybe not the same scenario as the OP, but related: What about
8.12.2.2.3 (2)? It says:
“Adjacent branch lines shall maintain the same pattern”
Might not apply here since it only applies if you are deviating from
the maximum spacing to eliminate an obstruction, but what is the
intent/purpose behind it?
-Kyle M
From: Sprinklerforum
[mailto:[email protected]] On Behalf Of
Roland Huggins
Sent: Wednesday, June 20, 2018 7:43 AM
To: [email protected]
Subject: [EXTERNAL] Re: Staggering ESFR
It’s been done forever with spray sprinklers and we’ve recommended
it many times as an effort to reach the 8 ft separation.
Unfortunately, the only guidance we have is in 8.5.2 Protection
Areas per Sprinkler. The problem is that L dimension is defined as
the PERPENDICULAR distance to the SPRINKLER on the adjacent branch
line. I tried to correct this and the TC didn’t like saying the
perpendicular distance to the adjacent branch line. I don't remember
the exact excuse but they are slow about accepting change to their
text. Since not all systems are laid out in perfect symmetry (AND
NOT REQUIRED TO BE), this philosophy is not intended to negate
staggering the layout.
Roland
Roland Huggins, PE - Senior VP Engineering
American Fire Sprinkler Assn.
Dallas, TX
http://www.firesprinkler.org<https://urldefense.proofpoint.com/v2/url?u=http-3A__www.firesprinkler.org_&d=DwMFaQ&c=wn3mZQLIuInh2ClcJ0_DIA&r=Z_2A85VL7AQzoqudh6uOyS3bn8etxB7nLN8OBJwQd9A&m=edPohNfxwkOR4DZbtVRmquhtSBj4Q9wlZiK43YT-n9A&s=WJq7PU8DHJ6QwLJinbdzhCsAZMCgEZ2g7Qh5fNEc8w8&e=>
Fire Sprinklers Saves Lives
On Jun 19, 2018, at 3:26 PM, JD Gamble
<[email protected]<mailto:[email protected]>> wrote:
I need to move a row of ESFR to make room for a door that the ARCH
is adamant about keeping. Can I stagger the spacing (space them at
8’-0” in lieu of the current 10’-0”) on the one line effected as
long as I don’t exceed the maximum or minimum spacing of the
sprinklers? Do I have to match that spacing / layout with the other
lines?
Just double checking myself.
TIA
Life Safety Solutions of Sheridan
JD Gamble
[email protected]<mailto:[email protected]>
(307) 763-3361
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