FOREWORD
1 Scope
2 Normative references
3 Terms and definitions
4 Level of protection (equipment protection level, EPL)
5 Flameproof joints
6 Sealed joints
7 Operating rods
8 Supplementary requirements for shafts and bearings
Light-transmitting parts
10 Breathing and draining devices which form part of a flameproof enclosure
11 Fasteners and openings
12 Materials
13 Entries for flameproof enclosures
14 Verification and tests
15 Type tests
16 Routine tests
17 Switchgear for Group I
18 Lampholders and Iamp caps
19 Non-metallic enclosures and non-metallic parts of enclosures
20 Marking
21 Instructions
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 (normative) Additional requirements for flameproof enclosures with an
internal source of release (containment system)
Annex H (normative) Requirements for machines with flameproof “d” enclosures fed
from converters
Bibliography