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basis behind 10meter fire zone.. rule of thumb or data

basis behind 10meter fire zone.. rule of thumb or data

basis behind 10meter fire zone.. rule of thumb or data

(OP)
Dear all,

I was asked this recently..

I know the 10 meter fire zone for requiring fire protection is based on pool fires..a new engineering ask me for the basis...
i assume this is Hydrocarbon fires and typically heats generated... but is there any orginal data...

a referance would be adequate..

RE: basis behind 10meter fire zone.. rule of thumb or data

Good question.

I do not have the answer, but would like to add that the exact height varies per standard. NFPA 15 (A 4-5.1) mentions a height of 30 or 40 feet (say 9 or 12 m) where water spray cooling is to be considered for destillation columns, API 521 (3.15.1.1) mentions a height of 25 feet (say 7.5 m) when calculating fire relief requirements for vessels, and Shell DEP mentions a height of the Fire Protection Zone of 9 m above grade.

None of these standards give a reference for these heights.

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