RV fire cases - fire zones

[Bill3752]

Can anyone direct me to where in API 521 I might find a rule of thumb to use for a fire zone. While I recognize that it mainly up to the facility to determine the correct fire zone areas, I did find in a search where the figure of 2500-5000 sq ft was cited. I also found a citation of a 50 ft circle was used. I can't find anything in 521, but admit it was an old version.

 

[ggordil]

I could not find anything in my version of API 521 either. For fire calculations, I use a 2500 sq. foot fire circle. This is based on our clients' standards.

 

[JoeWong88]

Bill3752,
Please refer to API Std 521, Jan 2007, Fifth edition, section 5.15.1.1 & 5.20.2.2. Read more...

 

[Bill3752]

Thank you both. Joe, I just realized that I have the 4th edition of 521 (1993 version).