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EN 60335-2-24:2010 Household And Similar Electrical Appliances - Safety - Part 2

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Post time 2011-9-22 11:54:35 | Show all posts |Read mode

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CONTENTS
-------------
FOREWORD..........................................................................................................................4
INTRODUCTION....................................................................................................................7
1 Scope..............................................................................................................................8
2 Normative references .......................................................................................................9
3 Definitions ......................................................................................................................10
4 General requirement.......................................................................................................12
5 General conditions for the tests ......................................................................................12
6 Classification.................................................................................................................14
7 Marking and instructions.................................................................................................14
8 Protection against access to live parts............................................................................18
9 Starting of motor-operated appliances ............................................................................18
10 Power input and current .................................................................................................18
11 Heating ..........................................................................................................................19
12 Void...............................................................................................................................22
13 Leakage current and electric strength at operating temperature......................................22
14 Transient overvoltages ...................................................................................................23
15 Moisture resistance ........................................................................................................23
16 Leakage current and electric strength.............................................................................24
17 Overload protection of transformers and associated circuits ...........................................25
18 Endurance......................................................................................................................25
19 Abnormal operation ........................................................................................................25
20 Stability and mechanical hazards ...................................................................................27
21 Mechanical strength .......................................................................................................29
22 Construction ...................................................................................................................30
23 Internal wiring.................................................................................................................39
24 Components ...................................................................................................................40
25 Supply connection and external flexible cords ................................................................41
26 Terminals for external conductors...................................................................................42
27 Provision for earthing .....................................................................................................42
28 Screws and connections .................................................................................................43
29 Clearances, creepage distances and solid insulation ......................................................43
30 Resistance to heat and fire.............................................................................................43
31 Resistance to rusting......................................................................................................44
32 Radiation, toxicity and similar hazards............................................................................44
Annexes ...............................................................................................................................47
Annex C (normative) Ageing test on motors .........................................................................47
Annex D (normative) Thermal motor protectors ....................................................................47
Annex P (informative) Guidance for the application of this standard to appliances
used in warm damp equable climates....................................................................................47
Annex AA (normative) Locked-rotor test of fan motors .........................................................48
Annex BB (informative) Method for accumulation of frost .....................................................50
Annex CC (normative) Non-sparking “n” electrical apparatus ...............................................53
60335-2-24 © IEC:2010 – 3 –
Annex DD (informative) Sound manufacturing practice for compression-type
appliances which use flammable refrigerant ..........................................................................55
Bibliography.........................................................................................................................56
Figure 101 – Apparatus for spillage test................................................................................45
Figure 102 – Detail of scratching tool tip ...............................................................................46
Figure AA.1 – Supply circuit for locked-rotor test of a single-phase fan motor .......................49
Figure BB.1 – Diagram of apparatus for water evaporation for accumulation of frost .............51
Figure BB.2 – Apparatus for water evaporation and for accumulation of frost........................52
Table 101 – Maximum temperatures for motor-compressors .................................................21
Table 102 – Refrigerant flammability parameters ..................................................................37

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