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NFPA 12 - DAMPERED

Question asked by gemmaguijo2011 on Aug 9, 2016

Good morning,

 

I have a doubt regarding the "NFPA 12 Standard on Carbon Dioxide Extinguishing Systems" point "A.5.5.3" on the standard we can read "For dampered, non-recirculating-type machines, add 35 percent to the indicates quantities in Table A.5.5.3(a) and Table A.5.5.3 (b) for extended discharge protection".

My doubt is if there is no deceleration period, in order to know the quantity of CO2 to add according the Tables A.5.5.3(a) and (b) which column of time I have to consider? 20 minutes?

Thanks in advance for your answer,

Best regards,

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