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16、EC 61095Edition 2.0 2009-02INTERNATIONAL STANDARD NORME INTERNATIONALEElectromechanical contactors for household and similar purposes Contacteurs lectromcaniques pour usages domestiques et analogues INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE XFICS 29.120.99;
17、 29.130.20 PRICE CODECODE PRIXISBN 2-8318-1026-2 Registered trademark of the International Electrotechnical Commission Marque dpose de la Commission Electrotechnique Internationale 2 61095 IEC:2009 CONTENTS FOREWORD.6 INTRODUCTION.8 1 Scope.9 2 Normative references .9 3 Terms and definitions .11 3.1
18、 General terms .11 3.2 Switching devices13 3.3 Parts of switching devices .15 3.4 Operation of switching devices 18 3.5 Characteristic quantities19 4 Classification24 5 Characteristics of contactors 24 5.1 Summary of characteristics .24 5.2 Type of contactor 24 5.2.1 Number of poles 24 5.2.2 Method
19、of control.24 5.3 Rated and limiting values for main circuits.24 5.3.1 General .24 5.3.2 Rated voltages 24 5.3.3 Currents or powers 25 5.3.4 Rated frequency 26 5.3.5 Rated duties 26 5.3.6 Normal load and overload characteristics 27 5.3.7 Rated conditional short-circuit current .28 5.4 Utilization ca
20、tegory28 5.4.1 General .28 5.4.2 Assignment of utilization categories based on the results of tests28 5.5 Control circuits 29 5.6 Auxiliary circuits 29 5.7 Co-ordination with short-circuit protective devices .29 6 Product information 29 6.1 Nature of information.29 6.1.1 Identification29 6.1.2 Chara
21、cteristics, basic rated values and utilization30 6.2 Marking .30 6.3 Instructions for installation, operation and maintenance 31 7 Normal service, mounting and transport conditions.31 7.1 Normal service conditions .31 7.1.1 Ambient air temperature 31 7.1.2 Altitude32 7.1.3 Atmospheric conditions32 7
22、.1.4 Normal electromagnetic environmental conditions .33 7.2 Conditions during transport and storage 33 7.3 Mounting .33 8 Constructional and performance requirements33 8.1 Constructional requirements33 61095 IEC:2009 3 8.1.1 General .33 8.1.2 Materials .33 8.1.3 Strength of screws or nuts other tha
23、n those on terminals which are intended to be operated during installation or maintenance .34 8.1.4 Vacant.35 8.1.5 Actuator.35 8.1.6 Indication of the OFF and ON positions .35 8.1.7 Terminals 36 8.1.8 Additional requirements for contactors provided with a neutral pole.37 8.1.9 Provisions for earthi
24、ng.37 8.1.10 Enclosures 38 8.1.11 Degrees of protection of enclosed contactors 39 8.1.12 Resistance to impact .39 8.1.13 Durability of markings39 8.2 Performance requirements 40 8.2.1 Operating conditions40 8.2.2 Temperature-rise.40 8.2.3 Dielectric properties.43 8.2.4 Normal load and overload perfo
25、rmance requirements 45 8.2.5 Co-ordination with short-circuit protective devices .47 8.3 Electromagnetic compatibility 47 8.3.1 Immunity .47 8.3.2 Emission .47 9 Tests 48 9.1 Types of test .48 9.1.1 General .48 9.1.2 Type tests .48 9.1.3 Routine tests .48 9.1.4 Sampling tests for clearance verificat
26、ion49 9.2 Compliance with constructional requirements 49 9.2.1 General .49 9.2.2 Materials .49 9.2.3 Test on screws or nuts other than those on terminals which are intended to be operated during installation or maintenance .52 9.2.4 Verification of the degrees of protection of enclosed contactors.52
27、 9.2.5 Mechanical properties of terminals 52 9.2.6 Test of resistance to impact.55 9.2.7 Test of durability of marking 57 9.3 Compliance with performance requirements 58 9.3.1 Test sequences .58 9.3.2 General test conditions58 9.3.3 Performance under no load, normal load and overload conditions .60
28、9.3.4 Performance under short-circuit conditions 71 9.3.5 Overload current withstand capability 76 9.3.6 Routine tests .76 Annex A (normative) Terminal marking and distinctive number 95 Annex B (normative) Test sequences and number of samples .100 Annex C (normative) Description of a method for adju
29、sting the load circuit 102 Annex D (normative) Determination of short-circuit power-factor104 4 61095 IEC:2009 Annex E (normative) Measurement of creepage distances and clearances 106 Annex F (normative) Correlation between the nominal voltage of the supply system and the rated impulse withstand vol
30、tage of a contactor .111 Annex G (normative) Hot wire ignition test .113 Annex H (normative) Degrees of protection of enclosed contactor .115 Annex I (normative) Requirements and tests for equipment with protective separation.122 Figure 1 Thread-forming tapping screw77 Figure 2 Thread-cutting tappin
31、g screw .77 Figure 3 Ball-pressure test apparatus (see 9.2.2.3.1).77 Figure 4 Test equipment for flexion test (see 9.2.5.3) 78 Figure 5 Gauges of form A and form B (see 9.2.5.5) 78 Figure 6 Pendulum for mechanical impact test apparatus (striking element) (see 9.2.6.2.1) 79 Figure 7 Mounting support
32、for sample, for mechanical impact test (see 9.2.6.2.1)80 Figure 8 Pendulum hammer test apparatus (see 9.2.6.2.1) 81 Figure 9 Sphere test apparatus (see 9.2.6.2.2) 81 Figure 10 Jointed test finger (according to IEC 60529).82 Figure 11 Diagram of the test circuit for the verification of making and bre
33、aking capacities of a single-pole contactor on single-phase a.c83 Figure 12 Diagram of the test circuit for the verification of making and breaking capacities of a two-pole contactor on single-phase a.c84 Figure 13 Diagram of the test circuit for the verification of making and breaking capacities of
34、 a three-pole contactor 85 Figure 14 Diagram of the test circuit for the verification of making and breaking capacities of a four-pole contactor 86 Figure 15 Schematic illustration of the recovery voltage across contacts of the first phase to clear (see 9.3.3.5.2, e) under ideal conditions .87 Figur
35、e 16 Diagram of a load circuit adjustment method88 Figure 17 Diagram of the test circuit for the verification of short-circuit making and breaking capacities of a single-pole contactor on single-phase a.c. 89 Figure 18 Diagram of the test circuit for the verification of short-circuit making and brea
36、king capacities of a two-pole contactor on single-phase a.c. 90 Figure 19 Diagram of the test circuit for the verification of short-circuit making and breaking capacities of a three-pole contactor 91 Figure 20 Diagram of the test circuit for the verification of short-circuit making and breaking capa
37、cities of a four-pole contactor92 Figure 21 Example of short-circuit making and breaking test record in the case of a single-pole contactor on single-phase a.c. 93 Figure 22 Diagram of the test circuit for making and breaking verification for utilization category AC-7c .94 Figure C.1 Determination o
38、f the actual value of the factor .103 Figure E.1 Measurement of ribs .106 Figure E.2 Creepage distance example 1.107 Figure E.3 Creepage distance example 2.107 Figure E.4 Creepage distance example 3.107 Figure E.5 Creepage distance example 4.108 61095 IEC:2009 5 Figure E.6 Creepage distance example
39、5.108 Figure E.7 Creepage distance example 6.108 Figure E.8 Creepage distance example 7.109 Figure E.9 Creepage distance example 8.109 Figure E.10 Creepage distance example 9.109 Figure E.11 Creepage distance example 10.110 Figure E.12 Creepage distance example 11.110 Figure G.1 Test fixture for hot
40、 wire ignition test113 Figure H.1 IP Codes 119 Figure I.1 Example of application with component connected between separated circuits126 Table 1 Utilization categories.29 Table 2 Standard cross-sections of round copper conductors.37 Table 3 Temperature-rise limits for insulated coils in air.40 Table
41、4 Temperature-rise limits of terminals 41 Table 5 Temperature-rise limits of accessible parts41 Table 6 Intermittent duty test cycle data.42 Table 7 Making and breaking capacities. Making and breaking conditions corresponding to the utilization categories 45 Table 8 Relationship between current brok
42、en Icand off-time for the verification of rated making and breaking capacities .46 Table 9 Conventional operational performance. Making and breaking conditions corresponding to the utilization categories 46 Table 10 Overload current withstand requirements 47 Table 11 Tightening torques for the verif
43、ication of the mechanical strength of screw-type terminals .53 Table 12 Test values for flexion and pull-out tests for round copper conductors.54 Table 13 Maximum conductor cross-sections and corresponding gauges .55 Table 14 Tolerances on test quantities.59 Table 15 Test copper conductors .62 Table
44、 16 Impulse test voltages and corresponding altitudes.66 Table 17 Minimum clearances in air.67 Table 18 Minimum creepage distances 67 Table 19 Dielectric test voltage corresponding to the rated insulation voltage 68 Table 20 Values of power-factors corresponding to test currents and ratio n between
45、peak and r.m.s. values of current73 Table 21 Value of the prospective test current according to the rated operational current75 Table B.1 Test sequences100 Table B.2 Number of samples to be tested.101 Table F.1 Correspondence between the nominal voltage of the supply system and the contactor rated i
46、mpulse withstand voltage, in case of over-voltage protection by surge-arresters according to IEC 60099-1.112 6 61095 IEC:2009 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ ELECTROMECHANICAL CONTACTORS FOR HOUSEHOLD AND SIMILAR PURPOSES FOREWORD 1) The International Electrotechnical Commission (IEC) is
47、 a worldwide organization for standardization comprising all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and in addition to
48、other activities, IEC publishes International Standards, Technical Specifications, Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested in t
49、he subject dealt with may participate in this preparatory work. International, governmental and non-governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for Standardization (ISO) in accordance with conditions determined by agreement bet
