AS/NZS 3164:1994

1 - AS/NZS 3164:1994 APPROVAL AND TEST SPECIFICATION-SAFETY OF ELECTRICALLY HEATED BLANKETS, PADS AND SIMILAR FLEXIBLE HEATING APPLI
4 - PREFACE
8 - CONTENTS
11 - 1. Scope
11 - 2. Definitions
16 - 3. General requirement
16 - 4. General notes on tests
18 - 5. Rating
18 - 6. Classification
19 - 7. Marking
23 - 8. Protection against electric shock
25 - 9. Void
25 - 10. Input
25 - 11. Heating
31 - 12. Operation under overload conditions
31 - 13. Electrical insulation and leakage current at operating temperature
34 - 14. Radio and television interference suppression
34 - 15. Moisture resistance
36 - 16. Insulation resistance and electric strength
38 - 17. Overload protection
39 - 18. Endurance
39 - 19. Abnormal operation
43 - 20. Stability
43 - 21. Mechanical strength
52 - 22. Construction
58 - 23. Internal wiring
58 - 24. Components
62 - 25. Supply connection and external flexible cords
69 - 26. Terminals for external conductors
74 - 27. Provision for earthing
74 - 28. Screws and connections
77 - 29. Creepage distances, clearances and distances through insulation
79 - 30. Resistance to heat, fire and tracking
84 - 31. Resistance to rusting
84 - 32. Radiation, toxicity and similar hazards
104 - APPENDIX A - VOID
105 - APPENDIX B - ELECTRONIC CIRCUITS
105 - B1. Scope
105 - B2. Definitions
105 - B4. General notes on tests
105 - B8. Protection against electric shock
106 - B11. Heating
106 - B13. Electrical insulation and leakage current at operating temperature
107 - B16. Insulation resistance and electric strength
107 - B19. Abnormal operation
109 - B22. Construction
110 - B29. Creepage distances, clearances and distances through insulation
112 - APPENDIX C - Specification for the lagging material
113 - APPENDIX D - APPARATUS FOR THE MECHANICAL STRENGTH TEST FOR BLANKETS
116 - APPENDIX E - MEASUREMENT OF CREEPAGE DISTANCES AND CLEARANCES
121 - APPENDIX F - VOID
122 - APPENDIX G - CIRCUIT FOR MEASURING LEAKAGE CURRENTS
124 - Appendix H - Selection and sequence of the tests of clause 30
126 - Appendix J - Burning test
127 - Appendix K - Glow-wire test
128 - Appendix L - Bad-connection test with heaters
130 - Appendix M - Needle-flame test
131 - Appendix N - Proof tracking test
132 - Appendix P - Severity of duty conditions of insulating material with respect to the risk of tracking
133 - APPENDIX ZA - SCREW CAPS E10 LAMP CAPS
134 - APPENDIX ZB - ALTERNATIVE REQUIREMENTS FOR UNDER-BLANKETS

Specifies essential safety requirements for electrically heated blankets, pads and similar flexible heating appliances for approval and test purposes. This Standard is based on, and has been reproduced from, IEC 967:1988, including Amendment 1, and with the addition of Australian/New Zealand Appendix ZA and Australian Appendix ZB.

1.1 This standard applies to electrically heated flexible appliances designed for the application of heat to a bed, or to the human body, such as blankets, pads and mattresses for household purposes, and to control units delivered with them.This standard does not apply to:- rigid bed warmers, such as those of metal or ceramic material;- appliances specifically intended for use by persons under medical supervision (see IEC 601)- appliances for pets and other household animals.- heaters for water-beds.For appliances incorporating a massage function IEC Publication 335-2-32 is also applicable. Additional requirements are under consideration for:- appliances incorporating conductive sheet type heating elements;1.2 This standard is concerned with safety and takes into account the influence on safety of components necessary to achieve a required degree of radio and television interference suppression.

First published in Australia in part as AS C149-1951.
Second edition 1954.
AS C164 first published 1960.
Second edition 1963.
Third edition 1965.
Fourth edition 1967.
Fifth edition 1971.
AS C149-1954 revised and redesignated AS 3149-1974.
AS C164-1971 revised and redesiganted AS 3164-1975.
Second edition AS 3164-1981.
Second edition AS 3149-1982.
Third edition AS 3164-1985.
Third edition AS 3149-1987.
Fourth edition AS 3164-1989.
First published in New Zealand as NZSS 1302:1957 (being BS 2612:1956 with amendments).
Second edition 1962.
Revised and redesignated NZS 6317:1988.
AS 3149-1987, AS 3164-1989 and NZS 6317:1988 jointly revised and designated as Joint Standard AS/NZS 3164:1994.