I guess It all goes back to unprotected flammable liquids vs protected flammable liquids. It's unreasonable to expect every building with any flammable liquids in it to have a foam system with a pump or a 8'-12' main with 6000 sqft remote area. If that were the case, all you really would have is a bunch of places illegally storing flammable liquids/people just not adopting it. So they threw an ok density at it and limited the amount/type of liquids you can store under the idea that the fire can only be so bad. If you want to store more, well then you need to do all this and that so we dont have an explosion leveling a few city blocks. It is kind of stupid that they say use class IV but oh by the way it might not work (because thats very helpful, especially in a court of law).
-----Original Message----- From: Sprinklerforum [mailto:[email protected]] On Behalf Of John F Hoffman Sent: Friday, May 22, 2015 4:24 PM To: [email protected] Subject: RE: NFPA 30 - Class IIIB Plastic Containers If you look at the annex material, fire control using the 12.8.1 protection scheme may not be achieved. Which makes you wonder how it came to be a design option. Something to consider. All the chapter 16 options use the schemes A,B, or C for plastic containers. John F. Hoffman, PE* \ Burns & McDonnell Senior Fire Protection Engineer O 816-349-6759 \ M 816-255-4102 [email protected] \ burnsmcd.com 9400 Ward Parkway \ Kansas City, MO 64114 Proud to be one of FORTUNE's 100 Best Companies to Work For Please consider the environment before printing this email. *Registered in: MO -----Original Message----- From: Sprinklerforum [mailto:[email protected]] On Behalf Of Jeremy Frazier Sent: Friday, May 22, 2015 12:59 PM To: [email protected] Subject: RE: NFPA 30 - Class IIIB Plastic Containers Take a look at 12.8.1 (2012 ed don't have 15 handy). It looks like your scenario would be class IV density. You can have 13,750 gallons IIIB before chapter 16 kicks in. -----Original Message----- From: Sprinklerforum [mailto:[email protected]] On Behalf Of Jeremy Frazier Sent: Friday, May 22, 2015 1:48 PM To: [email protected] Subject: RE: NFPA 30 - Class IIIB Plastic Containers What is the total quantities? Because unless there is a lot of them, you probably don't need to go that far in 30. Unprotected flammable liquids is ordinary grp 2. -----Original Message----- From: Sprinklerforum [mailto:[email protected]] On Behalf Of Gregg Fontes Sent: Friday, May 22, 2015 10:22 AM To: [email protected] Subject: NFPA 30 - Class IIIB Plastic Containers Scenario, quarts, gallons, and 5 gallons plastic containers of a Class IIIB liquid (i.e. motor oil, gear oil, hydraulic oil) stored 5' high on pallets for shipment to typical retail automotive stores. The quarts and gallon containers will be in cardboard boxes. The 5 gallons will be stacked two high on a pallets. First, would these containers be considered IBC's (intermediate bulk containers per 3.3.12.2 - 2015 edition)? If so, then I assume Table 16.5.2.9 would apply? If not considered IBC's, what Table would apply, if any? Thanks, Gregg Fontes Cen-Cal Fire Systems, Inc. 209-334-9119 _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org ______________________________________________________________________ This email has been scanned by the Symantec Email Security.cloud service. For more information please visit http://www.symanteccloud.com ______________________________________________________________________ _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org ______________________________________________________________________ This email has been scanned by the Symantec Email Security.cloud service. For more information please visit http://www.symanteccloud.com ______________________________________________________________________ _______________________________________________ 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 ______________________________________________________________________ This email has been scanned by the Symantec Email Security.cloud service. For more information please visit http://www.symanteccloud.com ______________________________________________________________________ _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
