So, does this mean we can't install shell systems in spec buildings because we don't trust them to store other than what the shell is intended for?
As I understand it, you're proposing EH2 over the entire, when a localized protection scheme might address the localized hazard of one trailer? How far could the fire go? Quite different than the modular home plants where you have tinderboxes with roofs 5 to 10' apart across 50~150,000 SF of area with combustible sawdust and other commodities that do demand an EH2 occupancy classification. But if a couple heads would address the condition, you're left with protecting 14' rack storage of group A. Instead of assuming the worst, wouldn't you provide a higher (and more accurate) service level to your customer by pressing for details? You have some control in that they need apvd sprkr criteria and plans before proceeding. glc -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Todd Williams Sent: Thursday, January 07, 2010 6:44 AM To: [email protected] Subject: RE: trailer parked inside I wouldn't trust them to do the flex head in the trailer. This job started as relocate 18 heads in an office area. I wasn't told that anything in the other area was included until the AHJ rejected my drawings and documentation. They are not giving me many details so I have to assume the worst. At 04:33 AM 1/7/2010, you wrote: >If the trailer is in the same exact spot, could a flexible drop be fitted >coming down from the roof system and have a bracket rigged to effect an EC >HSW pointing into the back of the trailer spraying into it? >Then you only have the shielded area below the trailer to either deal with- >whether its increased MRA size, a similar HSW on the side if positioning is >consistent, housekeeping if its always clear below it**.... > >**I agree, for ex, its dumb to sprkr under 18" hi conveyors in a FedEx-type >sorting facility cause they CAN'T have stuff accumulate- that "stuff" is the >package heading for Albany. If their trailer work is inside the box, with >staging of combustibles (assuming some plastic pc-server type of gear, group >A) all to the rear of it, no work or storage or accumulation under it, then >hazard addressed as a specific obstruction without wholesale damage to the >budget over a large area. > >-----Original Message----- >From: [email protected] >[mailto:[email protected]] On Behalf Of A.P.Silva >Sent: Wednesday, January 06, 2010 10:52 PM >To: [email protected] >Subject: RE: trailer parked inside > >I think you're on the right track. But find out the fuel load inside the >trailer. I would compare that with the fuel load in a standard vehicle (I >don't think the intent is to include the gasolene in the fuel tank)in a >parking garage (OH1) with that for the combustible interiors in a >manufactured home assembly (EH2). > >Is it parked in one spot all the time, which is most likely if there is only >one overhead door. If so, you could design only that area + 15 feet beyond >to the hazard you select. Hopefully, that one spot won't also be the >hydraulically most remote. > >Tony > >-----Original Message----- >From: [email protected] >[mailto:[email protected]] On Behalf Of Todd Williams >Sent: January 6, 2010 6:54 PM >To: [email protected] >Subject: trailer parked inside > >I am looking at a project where a company will back a full size trailer into >a building and retrofit it with electronic equipment (think big mobile news >truck). Only one trailer will be in the building at a time. The rest of the >facility will be electronic assembly and 14 ft rack storage of electric >equipment. I'm thinking I have to look at this as extra hazard group 2 >(similar to manufactured home assembly - due to the shielded fire >potential). I am getting a lot of resistance from the architect, contractor >and the owner that it is not that severe since it is only one truck and only >occupies 10% of the space. The space is wide open with no enclosures. Am I >on target with this or over-engineering yet again? > >Todd G. Williams, PE >Fire Protection Design/Consulting >Stonington, Connecticut >www.fpdc.com >860.535.2080 >_______________________________________________ >Sprinklerforum mailing list >[email protected] >http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum > >For Technical Assistance, send an email to: [email protected] > >To Unsubscribe, send an email to:[email protected] >(Put the word unsubscribe in the subject field) > >_______________________________________________ >Sprinklerforum mailing list >[email protected] >http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum > >For Technical Assistance, send an email to: [email protected] > >To Unsubscribe, send an email to:[email protected] >(Put the word unsubscribe in the subject field) > >_______________________________________________ >Sprinklerforum mailing list >[email protected] >http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum > >For Technical Assistance, send an email to: [email protected] > >To Unsubscribe, send an email to:[email protected] >(Put the word unsubscribe in the subject field) Todd G. Williams, PE Fire Protection Design/Consulting Stonington, Connecticut www.fpdc.com 860.535.2080 _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: [email protected] To Unsubscribe, send an email to:[email protected] (Put the word unsubscribe in the subject field) _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: [email protected] To Unsubscribe, send an email to:[email protected] (Put the word unsubscribe in the subject field)
