This poses an interesting dilemma.  You feel it is a problem but can’t 
articulate a definitive statement so do you or don’t you write a letter.  I 
certainly understand the  need for a CYA philosophy (as moronic and insane as 
our legal system has become - notice I didn’t say anything about justice since 
that is not what the courts provide).  But I’m off path.

The interesting dilemma is that you have a pipe schedule system acceptable for 
protecting an Ordinary Hazard classification.  You have a storage facility that 
can be  protected as an OHG2 (aka not treated as storage but as a chap 11 
risk).  Any discussion on it not calculating out is a nonstarter since pipe 
schedule systems never calc-out (after all a calculated system was based on 
supplying a remote area in a pipe schedule layout about 2/3 the distance out 
from the riser).

 So the big question is where’s the beef? 


Roland Huggins, PE - VP Engineering
American Fire Sprinkler Assn.       ---      Fire Sprinklers Saves Lives
Dallas, TX
http://www.firesprinkler.org <http://www.firesprinkler.org/>



> On Apr 27, 2016, at 3:27 AM, Todd Williams <[email protected]> wrote:
> 
> I am working at a facility where there is an existing OH pipe schedule system 
> over 12ft palletized Class IV storage. The fire department has approved it, 
> but I question whether it will provide adequate protection. I did not see 
> anything in NFPA 13 that requires storage occupancies to be hydraulically 
> calculated. Am I missing something?
> This is outside of the project I am working on, but as an FPE, I feel 
> obligated to notify someone if I see a potential hazard such as this.
> 
> Todd G Williams, PE Fire Protection Design/Consulting Stonington, CT 
> 860-535-2080 (ofc) 860-608-4559 (cell)
> Sent using CloudMagic 
> [https://cloudmagic.com/k/d/mailapp?ct=ti&cv=6.0.64&pv=8.2]
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