That might be nice. Of course, since we've been using L and S (that's what the "other one" is) for literally dozens of years, and there doesn't seem to be a groundswell of protest in our professional community, why change it? Priority 1 question in code development: What are we fixing? If you think it would be "nice", write a PI and send it in.
SL -----Original Message----- From: Sprinklerforum [mailto:[email protected]] On Behalf Of [email protected] Sent: Wednesday, June 20, 2018 11:12 AM To: [email protected] Subject: Re: [EXTERNAL] Re: Staggering ESFR 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? > > Get Outlook for iOS<https://aka.ms/o0ukef> > ________________________________ > 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 > > _______________________________________________ > Sprinklerforum mailing list > [email protected]<mailto:[email protected]> > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org<https://urldefense.proofpoint.com/v2/url?u=http-3A__lists.firesprinkler.org_listinfo.cgi_sprinklerforum-2Dfiresprinkler.org&d=DwMFaQ&c=wn3mZQLIuInh2ClcJ0_DIA&r=Z_2A85VL7AQzoqudh6uOyS3bn8etxB7nLN8OBJwQd9A&m=edPohNfxwkOR4DZbtVRmquhtSBj4Q9wlZiK43YT-n9A&s=cp7h4nsyhZjHiDiBNCkI8qXnzj4R0VvLpD58VkpmNc4&e=> _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
