BIS IS/IEC 60079-2 : 2007
Current
The latest, up-to-date edition.
EXPLOSIVE ATMOSPHERES - PART 2: EQUIPMENT PROTECTION BY PRESSURIZED ENCLOSURE 'P'
12-01-2013
NATIONAL FOREWORD
1 Scope
2 Normative 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 equipment 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
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