BS 3456-202.4(1990) : 1990

National foreword
Cooperating organizations
National appendix W
Brief history
Foreword
Preface of IEC Publication 335-2-4
Specification
1. Scope
2. Definitions
3. General requirement
4. General notes on tests
5. Rating
6. Classification
7. Marking
8. Protection against electric shock
9. Starting of motor-operated appliances
10. Input and current
11. Heating
12. Operation under overload conditions of appliances
     with heating elements
13. Electrical insulation and leakage current at
     operating temperature
14. Radio and television interference suppression
15. Moisture resistance
16. Insulation resistance and electric strength
17. Overload protection
18. Endurance
19. Abnormal operation
20. Stability and mechanical hazards
21. Mechanical strength
22. Construction
23. Internal wiring
24. Components
25. Supply connection and external flexible cables and
     cords
26. Terminals for external conductors
27. Provision for earthing
28. Screws and connections
29. Creepage distances, clearances and distances
     through insulation
30. Resistance to heat, fire and tracking
31. Resistance to rusting
32. Radiation, toxicity and similar hazards
Appendices
Appendix A. Thermal controls and overload releases
Appendix B. Electronic circuits
Appendix C. Construction of safety isolating
             transformers
Appendix D. Alternative requirements for protected
             motor units
Appendix E. Measurement of creepage distances and
             clearances
Appendix F. Motors not isolated from the supply mains
             and having basic insulation not designed
             for the rated voltage of the appliance
Appendix G. Circuit for measuring leakage currents
Annexes
Annex ZA. Switches
Annex ZX. Special national conditions
Annex ZY. National deviations