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Fire Zone Area Vs Open Drain / Sewer System


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#1 Beergson

Beergson

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Posted 13 March 2015 - 01:14 AM

Hi guys

 

Doing one of mine jobs I've doubts regarding area of fire that can occure at one plant.

Acc. to API 521 fire zone can be confined to app. 232 m2 (shell increased this value to 300m2), so relief load in my opininion can be calculated as the most demanding for PSV orifice taking into account this plot area.

 

But what if plant has one common open sewer (rain) system, and fire can be propagated by it to other section causing total fire at plant ? Plant is localized at area 80x80 m so this plot exceed area stated in API.

 

Do you know any other guide for fire zone determination?

 

Thanx in advance for any suggestions.


Edited by Beergson, 13 March 2015 - 02:51 AM.





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