BS 3456-2.21:1972

Superseded

View Superseded by

Specification for safety of household and similar electrical appliances. Particular requirements Electric immersion heaters

Available format(s)

Hardcopy , PDF

Superseded date

14-04-1997

Language(s)

English

Published date

15-05-1972

Publisher

British Standards Institution

Cooperating organizations
Foreword
Specification
1. Scope
2. Definitions
3. General requirement
4. General conditions for the tests
5. Rating
6. Classification
7. Marking
8. Protection against electric shock
9. Starting of motor-operated appliances
10. Input
11. Heating
12. Operation under overload conditions
13. Electrical insulation at operating temperature
14. Radio-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
Appendices
A. Preferred dimensions for electric immersion heaters
B. Effect of non-metallic materials on water quality
Table
1. Dimensions of immersion heater heads
Figure
1. Preferred dimensions

Specifies requirements for electric immersion heaters for household use.

Committee	W/-
DocumentType	Standard
Pages	12
PublisherName	British Standards Institution
Status	Superseded
SupersededBy	BS EN 60335-2-73:1997 BS EN 60335-2-73 : 2003

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