Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Construction
5 Practice A and practice B
6 Requirements for electrical apparatus protected by enclosures
for practice A for use in zones 21 and 22
6.1 General
6.2 Joints
7 Requirements for electrical apparatus protected by enclosures
for practice B for use in zone 21 or 22
7.1 General
7.2 Joints
7.3 Operating rods, spindles or shafts
7.4 Clearance of bolts
8 Verification and tests
8.1 General
8.2 Type tests
9 Marking
Annex A - U.S. major deviations
Bibliography