ISA 60079-2 : 2010(R2015)
Withdrawn
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EXPLOSIVE ATMOSPHERES - PART 2: EQUIPMENT PROTECTION BY PRESSURIZED ENCLOSURES 'P'
03-19-2021
01-12-2013
1 Scope
2 References
3 Terms and definitions
4 Protection types
5 Constructional requirements for pressurized enclosures
6 Temperature limits
7 Safety provisions and safety devices (except for static
pressurization)
8 Safety provisions and safety devices for static
pressurization
9 Supply of protective gas
10 Pressurized apparatus with an internal source of release
11 Release conditions
12 Design requirements for the containment system
13 Protective gas and pressurizing techniques
14 Ignition-capable apparatus
15 Internal hot surfaces
16 Type verification and tests
17 Routine tests
18 Marking
19 Instructions
Annex A (normative) - Purging and dilution tests
Annex B (informative) - Examples of functional sequence
diagram
Annex C (informative) - Examples of the changes in pressure
in ducts and enclosures
Annex D (informative) - Information to be provided to the
user
Annex E (normative) - Classification of the type of release
within enclosures
Annex F (informative) - Examples for the use of the dilution
area concept
Annex G (normative) - Infallibility test for containment
system
Annex H (informative) - Introduction of an alternative risk
assessment method encompassing 'equipment protection
levels' for Ex equipment
Annex I (informative) - US conversion factors
Annex J (informative) - United States major differences
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