I.S. EN 60079-2:2014

National Foreword
FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms and definitions
4 Protection levels
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
   when there is an internal source of release
14 Ignition-capable equipment
15 Internal hot surfaces
16 Type verification and tests
17 Routine 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) - Internal Cells and Batteries for
        Level of Protection 'pxb' and
        Level of Protection 'pyb'
Annex H (normative) - Internal Cells and Batteries
        for Level of Protection 'pzc'
Bibliography
Annex ZA (normative) - Normative references to
         international publications with their
         corresponding European publications
Annex ZZ (informative) - Coverage of Essential
         Requirements of EU Directives
Annex ZY (informative) - Significant changes
         between this European Standard
         and EN 60079-2:2007

Includes the specific requirements for the construction and testing of electrical apparatus with pressurized enclosures, of protection type 'p', intended for use in explosive gas atmospheres.