BIS IS/IEC 60079-1 : 2007

1 Scope
2 Normative references
3 Terms and definitions
4 Equipment grouping and temperature classification
5 Flameproof joints
6 Cemented joints
7 Operating rods
8 Supplementary requirements for shafts and bearings
9 Light-transmitting parts
10 Breathing and draining devices which form part of a
   flameproof enclosure
11 Fasteners, associated holes and blanking elements
12 Materials and mechanical strength of enclosures -
   Materials inside the enclosures
13 Entries for flameproof enclosures
14 Verification and tests
15 Type tests
16 Routine tests
17 Switchgear for group I
18 Lampholders and lamp caps
19 Non-metallic enclosures and non-metallic parts of
   enclosures
20 Marking
Annex A (normative) - Additional requirements for crimped
        ribbon elements and multiple screen elements of
        breathing and draining devices
Annex B (normative) - Additional requirements for elements,
        with non-measurable paths, of breathing and
        draining devices
Annex C (normative) - Additional requirements for flameproof
        entry devices
Annex D (normative) - Empty flameproof enclosures as Ex
        components
Annex E (normative) - Cells and batteries used in flameproof
        'd' enclosures
Annex F (informative) - Mechanical properties for screws
        and nuts
Annex G (informative) - Introduction of an alternative risk
        assessment method encompassing 'equipment protection
        levels' for Ex equipment
Bibliography

Describes requirements for the construction and testing of electrical equipment with the type of protection flameproof enclosure 'd', intended for use in explosive gas atmospheres.