1、 IEC 61812-1 Edition 2.0 2011-05 INTERNATIONAL STANDARD NORME INTERNATIONALE Time relays for industrial and residential use Part 1: Requirements and tests Relais temps spcifi pour applications industrielles et rsidentielles Partie 1: Exigences et essais IEC 61812-1:2011 THIS PUBLICATION IS COPYRIGHT
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16、 csciec.ch Tl.: +41 22 919 02 11 Fax: +41 22 919 03 00 IEC 61812-1 Edition 2.0 2011-05 INTERNATIONAL STANDARD NORME INTERNATIONALE Time relays for industrial and residential use Part 1: Requirements and tests Relais temps spcifi pour applications industrielles et rsidentielles Partie 1: Exigences et
17、 essais INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE X ICS 29.120.70 PRICE CODE CODE PRIX ISBN 978-2-88912-488-6 Registered trademark of the International Electrotechnical Commission Marque dpose de la Commission Electrotechnique Internationale 2 61812-1 IEC:2
18、011 CONTENTS FOREWORD . 5 1 Scope . 7 2 Normative references . 7 3 Terms and definitions . 9 3.1 Terms and definitions related to general terms 9 3.2 Terms and definitions of relay types 11 4 Influence quantities 17 5 Rated values 18 5.1 General . 18 5.2 Input voltage and frequency 18 5.3 Release vo
19、ltage 19 5.4 Power consumption . 19 5.5 Output circuit . 19 5.5.1 Electromechanical output circuit 19 5.5.2 Mechanical endurance . 19 5.5.3 Solid state output circuit 19 5.5.4 Endurance and operating frequency 20 5.5.5 Conditional short circuit current . 20 5.6 Ambient temperature . 20 5.7 Transport
20、 and storage temperature . 20 5.8 Humidity 20 5.9 Pollution degree 21 5.10 Altitude 21 5.11 Timing circuit function . 21 5.11.1 General . 21 5.11.2 Setting accuracy 21 5.11.3 Repeatability . 21 5.11.4 Recovery time and minimum control impulse . 21 6 Provisions for testing 22 7 Documentation and mark
21、ing . 22 7.1 Data 22 7.2 Marking . 24 8 Heating 25 8.1 General . 25 8.2 Test conditions 25 8.3 Heating of terminals 25 8.3.1 General . 25 8.3.2 Heating of screw terminals and screwless terminals 25 8.3.3 Heating of quick-connect terminations . 26 8.3.4 Heating of sockets . 26 8.3.5 Heating of altern
22、ative termination types . 27 8.4 Heating of accessible parts . 27 8.5 Heating of insulating materials 27 9 Basic operating function . 27 9.1 General . 27 9.2 Operate . 27 61812-1 IEC:2011 3 9.3 Release . 28 9.4 Time function 28 9.4.1 Functional test at reference values of input quantities . 28 9.4.2
23、 Influencing effects of voltage and temperature . 28 10 Insulation . 28 10.1 General . 28 10.2 Preconditioning . 29 10.3 Dielectric strength . 29 10.3.1 General . 29 10.3.2 Impulse withstand test . 29 10.3.3 Dielectric a.c. power frequency voltage test . 30 10.4 Protection against direct contact . 3
24、1 11 Electrical endurance . 31 11.1 General . 31 11.2 Resistive loads, inductive loads, and special loads 32 11.3 Low energy loads 32 12 Conditional short-circuit current 32 12.1 General . 32 12.2 Test procedure 32 12.3 Test circuit electromechanical output circuit 32 12.4 Test circuit solid state o
25、utput circuit 33 12.5 Condition of switching element after test . 34 13 Clearances and creepage distances . 34 13.1 General . 34 13.2 Creepage distances. 35 13.3 Clearances 36 13.4 Measurement of creepage distances and clearances . 37 14 Mechanical strength . 37 14.1 General . 37 14.2 Mechanical str
26、ength of terminals and current-carrying parts 38 14.2.1 General . 38 14.2.2 Mechanical strength of screw terminals and screwless terminals . 38 14.2.3 Mechanical strength of flat quick-connect terminations 38 14.2.4 Mechanical strength of sockets 38 14.2.5 Mechanical strength of alternative terminat
27、ion types 38 15 Heat and fire resistance 38 16 Vibration and shock 39 16.1 Vibration 39 16.2 Shock 39 17 Electromagnetic compatibility (EMC) 40 17.1 General . 40 17.2 EMC immunity . 40 17.3 EMC radiated and conducted emission 42 Annex A (informative) Ball pressure test 44 Bibliography 45 Figure 1 De
28、finition of ports . 11 4 61812-1 IEC:2011 Figure 2 Definition of symbols 11 Figure 3 Power on-delay relay . 12 Figure 4 Power off-delay relay . 12 Figure 5 Off-delay relay with control signal 12 Figure 6 On- and off-delay relay with control signal 13 Figure 7 Flasher relay 13 Figure 8 Star-delta rel
29、ay 14 Figure 9 Summation time relay. 14 Figure 10 Pulse delayed relay 15 Figure 11 Pulse delayed relay with control signal . 15 Figure 12 Interval relay 15 Figure 13 Interval relay with control signal . 16 Figure 14 Retriggerable interval relay with control signal on 16 Figure 15 Retriggerable inter
30、val relay with control signal off 17 Figure 16 Maintained time relay . 17 Figure 17 Test circuit electromechanical output, conditional short-circuit current . 33 Figure 18 Test circuit solid state output, conditional short-circuit current 34 Table 1 Influence quantities and reference values 17 Table
31、 2 Preferred values of endurance 20 Table 3 Preferred values of maximum permissible operating frequency 20 Table 4 Recommended final values of the setting range 21 Table 5 Type testing 22 Table 6 Required relay information 23 Table 7 Areas and lengths of conductors dependent on the current carried b
32、y the terminal 26 Table 8 Temperature rise limits of accessible parts 27 Table 9 Changing of influencing quantities . 28 Table 10 Impulse test for basic insulation 30 Table 11 Dielectric test voltage for devices suitable for use in single-phase three or two-wire a.c. and d.c. systems 30 Table 12 Die
33、lectric test voltage for devices suitable for use in three-phase four or three-wire a.c. systems . 31 Table 13 Minimum creepage distances for basic insulation 36 Table 14 Minimum clearances for basic insulation . 37 Table 15 Minimum clearances in controlled overvoltage conditions for internal circui
34、ts 37 Table 16 Environmental conditions influencing EMC 40 Table 17 Immunity tests for industrial environments . 41 Table 18 Immunity tests for residential, commercial and light-industrial environments 42 61812-1 IEC:2011 5 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ TIME RELAYS FOR INDUSTRIAL AND R
35、ESIDENTIAL USE Part 1: Requirements and tests FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international co-operation on a
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43、ll attach to IEC or its directors, employees, servants or agents including individual experts and members of its technical committees and IEC National Committees for any personal injury, property damage or other damage of any nature whatsoever, whether direct or indirect, or for costs (including leg
44、al fees) and expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC Publications. 8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is indispensable for the correct application of this pub
45、lication. 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent rights. IEC shall not be held responsible for identifying any or all such patent rights. International Standard IEC 61812-1 has been prepared by IEC technical committee 9
46、4: All-or- nothing electrical relays. This second edition cancels and replaces the first edition published in 1996. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: update of references; addition of
47、 terms and definitions more commonly used by industry; addition of timing charts to help explain terms and definitions involving a sequence of events; renumbering of clauses to bring them into a more logical order; addition of provisions for residential use. 6 61812-1 IEC:2011 The text of this stand
48、ard is based on the following documents: FDIS Report on voting 94/324/FDIS 94/333/RVD Full information on the voting for the approval of this standard can be found in the report on voting indicated in the above table. This publication has been drafted in accordance with the ISO/IEC Directives, Part
49、2. A list of all parts of the IEC 61812 series can be found, under the general title Time relays for industrial and residential use, on the IEC website. The committee has decided that the contents of this publication will remain unchanged until the stability date indicated on the IEC web site under “http:/webstore.iec.ch“ in the data related to the specific publ
