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European Code Requirements

European Code Requirements

European Code Requirements

(OP)
I'm looking for clear information stating the allowable accumulation for fire sizing in jurisdictions that are covered by PED.In the committee response copied below, they say that 10% accumulation isn't the rule for fire scenarios, but they don't give the allowable value.

Can anyone provide me the answer, and tell me where it is explained?


Guideline 5/2    

[Original version as adopted on: 29 Jun 2000]
Pressure equipment directive 97/23/EC

Commission’s Working Group "Pressure"
Guideline related to: Annex I Section 2.11.2 , Annex I Section 2.12

Question:    In respect of pressure limiting devices, does the PED require that the permitted short duration pressure surge of 1,1 PS be maintained when the equipment is exposed to external fire conditions ?
Answer:    The 1,1 PS restriction does not apply to fire.
Reasons: The requirement in Annex I section 2.12 for external fire refers to damage limitation, and does not serve the purpose of pressure limiting device in normal operation.

 Accepted by WPG on: 05 May 2000
 Accepted by Working Group "pressure": 29 Jun 2000

RE: European Code Requirements

I understand this as you can use e.g. API520 (21% over pressure) for the fire case.

Best regards

Morten

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