IEC 60335-2-17:2012 deals with the safety of electric blankets, pads, clothing and other flexible appliances that heat the bed or human body, for household and similar purposes, their rated voltage being not more than 250 V. This standard also applies to control units supplied with the appliance. Appliances not intended for normal household use but which nevertheless may be a source of danger to the public, such as appliances intended to be used in beauty parlours or by persons in cold ambient temperatures, are within the scope of this standard. As far as is practicable, this standard deals with the common hazards presented by appliances that are encountered by all persons in and around the home. However, in general, it does not take into account persons (including children) whose physical, sensory or mental capabilities or lack of experience and knowledge prevents them from using the appliance safely without supervision or instruction or children playing with the appliance. This third edition cancels and replaces the second edition published in 2002 including its Amendment 1 (2006) and its Amendment 2 (2008). It constitutes a technical revision. The principal changes in this edition as compared with the second edition are as follows (minor changes are not listed): – The definition of PTC heating element has been deleted and the definition in Part 1 now applies. A definition of a heating element with PTC characteristics has been introduced instead (3.117). This has resulted in editorial changes to 5.7, 5.8.2, 7.1, 10.101, 11.2, 21.105, 21.111.1 and 21.112. – The allowance for class I appliances has been deleted and requirements for appliances incorporating a functional earth have been incorporated (6.1, 7.1, 22.115). – The working voltage of parts of class III construction is limited to 24 V (22.26). – Some notes have been deleted or converted to normative text (3.107, 3.111, 3.113, 5.2, 5.3, 5.8.2, 11.8, 11.101, 11.102, 15.1, 15.101, 19.1, 19.13, 19.102, 19.103, 19.105, 19.106, 19.108, 19.109, 19.110, 19.111, 19.112, 21.1, 21.102, 21.103, 21.109, 21.110.3, 21.111.1, 21.111.2, 21.111.3, 21.112, 22.103, 22.114, 25.23, Annex AA, Annex CC 3.1.9, 19.201, 19.203). – Modification of the marking requirements (7.1, 7.14, 7.15). – Modification of the instructions (7.12). – Clarification of the heat stroke test (11.101). – The figure numbers have been updated to take into account deletion of Figure 103 in the previous edition. The attention of National Committees is drawn to the fact that equipment manufacturers and testing organizations may need a transitional period following publication of a new, amended or revised IEC publication in which to make products in accordance with the new requirements and to equip themselves for conducting new or revised tests. It is the recommendation of the committee that the content of this publication be adopted for implementation nationally not earlier than 12 months or later than 36 months from the date of publication. Keywords: electric blanket: pad: heating element This publication is to be read in conjunction with \/2.<\/p>\n
| PDF Pages<\/th>\n | PDF Title<\/th>\n<\/tr>\n | ||||||
|---|---|---|---|---|---|---|---|
| 7<\/td>\n | English CONTENTS <\/td>\n<\/tr>\n | ||||||
| 9<\/td>\n | INTRODUCTION <\/td>\n<\/tr>\n | ||||||
| 10<\/td>\n | 1 Scope <\/td>\n<\/tr>\n | ||||||
| 11<\/td>\n | 2 Normative references 3 Terms and definitions <\/td>\n<\/tr>\n | ||||||
| 13<\/td>\n | 4 General requirement 5 General conditions for the tests <\/td>\n<\/tr>\n | ||||||
| 15<\/td>\n | 6 Classification 7 Marking and instructions <\/td>\n<\/tr>\n | ||||||
| 18<\/td>\n | 8 Protection against access to live parts 9 Starting of motor-operated appliances 10 Power input and current 11 Heating <\/td>\n<\/tr>\n | ||||||
| 19<\/td>\n | Tables Table 101 \u2013 Maximum temperatures Table 102 \u2013 Maximum temperature rises <\/td>\n<\/tr>\n | ||||||
| 20<\/td>\n | 12 Void 13 Leakage current and electric strength at operating temperature <\/td>\n<\/tr>\n | ||||||
| 21<\/td>\n | 14 Transient overvoltages 15 Moisture resistance <\/td>\n<\/tr>\n | ||||||
| 22<\/td>\n | 16 Leakage current and electric strength <\/td>\n<\/tr>\n | ||||||
| 23<\/td>\n | 17 Overload protection of transformers and associated circuits 18 Endurance 19 Abnormal operation <\/td>\n<\/tr>\n | ||||||
| 27<\/td>\n | 20 Stability and mechanical hazards 21 Mechanical strength <\/td>\n<\/tr>\n | ||||||
| 34<\/td>\n | 22 Construction <\/td>\n<\/tr>\n | ||||||
| 36<\/td>\n | 23 Internal wiring 24 Components <\/td>\n<\/tr>\n | ||||||
| 37<\/td>\n | 25 Supply connection and external flexible cords <\/td>\n<\/tr>\n | ||||||
| 38<\/td>\n | 26 Terminals for external conductors 27 Provision for earthing 28 Screws and connections 29 Clearances, creepage distances and solid insulation 30 Resistance to heat and fire <\/td>\n<\/tr>\n | ||||||
| 41<\/td>\n | 31 Resistance to rusting 32 Radiation, toxicity and similar hazards Figures Figure 101 \u2013 Symbol for “Do not use folded or rucked” Figure 102 \u2013 Symbol for “Do not insert pins” <\/td>\n<\/tr>\n | ||||||
| 42<\/td>\n | Figure 103 \u2013 Arrangement for measuring leakage currentand electric strength of the flexible part <\/td>\n<\/tr>\n | ||||||
| 43<\/td>\n | Figure 104 \u2013 Arrangement for the three-thickness fold test <\/td>\n<\/tr>\n | ||||||
| 44<\/td>\n | Figure 105 \u2013 Examples showing the position of the thermal insulationon ruck-resistant blankets and mattresses <\/td>\n<\/tr>\n | ||||||
| 45<\/td>\n | Figure 106 \u2013 Examples of folds and the position of the thermal insulation on pads <\/td>\n<\/tr>\n | ||||||
| 46<\/td>\n | Figure 107 \u2013 Tumbling barrel for testing the mechanical strength of pads <\/td>\n<\/tr>\n | ||||||
| 47<\/td>\n | Figure 108 \u2013 Impact apparatus for testing enclosures of moisture-proof appliances <\/td>\n<\/tr>\n | ||||||
| 48<\/td>\n | Figure 109 \u2013 Shape of the sample for the tear resistance test Figure 110 \u2013 Equipment for flexing heating elements and internal wirin <\/td>\n<\/tr>\n | ||||||
| 49<\/td>\n | Figure 111 \u2013 Arrangement for the rigidity test of ruck-resistant blankets <\/td>\n<\/tr>\n | ||||||
| 50<\/td>\n | Figure 112 \u2013 Equipment for the spark ignition test <\/td>\n<\/tr>\n | ||||||
| 51<\/td>\n | Figure 113 \u2013 Equipment for the spark ignition test \u2013 Details of the mask <\/td>\n<\/tr>\n | ||||||
| 52<\/td>\n | Annexes Annex A (informative) Routine tests Table A.101 \u2013 Test voltages <\/td>\n<\/tr>\n | ||||||
| 54<\/td>\n | Annex AA (normative) Specification for the thermal insulation <\/td>\n<\/tr>\n | ||||||
| 55<\/td>\n | Annex BB (normative) Equipment for the mechanical strength test for blankets <\/td>\n<\/tr>\n | ||||||
| 56<\/td>\n | Figure BB.1 \u2013 Equipment for the mechanical strength test of blankets <\/td>\n<\/tr>\n | ||||||
| 57<\/td>\n | Figure BB.2 \u2013 Detail of the drum and cylinders Figure BB.3 \u2013 Detail of the clamping bar <\/td>\n<\/tr>\n | ||||||
| 58<\/td>\n | Annex CC (normative) Clothing <\/td>\n<\/tr>\n | ||||||
| 61<\/td>\n | Bibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" Household and similar electrical appliances. Safety – Particular requirements for blankets, pads, clothing and similar flexible heating appliances<\/b><\/p>\n |