IEC_60056-1987_scan.pdf

NORME INTERNATIONALECEIINTERNATIONAL STANDARDIEC56Quatrieme editionFourth editionCommission Electrotechnique Internationale1987International Electrotechnical CommissionMemAyHapoAHa OneKTpoTeXHn4ecHaR HoMHCCHADisjoncteurs a courant alternatifa haute tensionHigh-voltage alternating-currentcircuit-breakersCE1987 Droits de reproduction reserves-Copyright-al rights reservedAucune parte de cette pubicaton ne peut ire reproduite ni utilsee sous quelque No parn of this pubicaton may be reproduced or utlzed in any form or by any means,lorme que ce sot er car aucun proced，electronque ou mcanique,ycompns la electronic or mechanical,including photocopying and microilm,without permissionshotocopie ut les microims,sans Iaccord ecnt de lediteur.n wntng from the pubisherBureau Central de ia Commission Electrotechnique Internationale 3,rue de Varemb Genve,SuisseCode prix165Price codeCUU753ACPour prix.voir catlogue en vigFor price,see curre catogue-1 LF.253456IEC19873CONTENTSPageFOREWORD个PREFACE7CHAPTER I:SERVICE CONDITIONS,DEFINITIONS,RATING.CONSTRUCTION AND DESIGN1.Scope112.Normal and special service conditions113.Definitions113.101 General terms3.102Switching devices173.103 Parts of circuit-breakers3.104 Operation.213.105Characteristic quantities of circuit-breakers.23.106Index of definitions334.Rating4.1Rated voltage14.2Rated insulation level4.3Rated frequency44Rated normal current and temperature rise4.5Rated short-time withstand current.4.6Rated peak withstand current7Rated duration of short-circuit414.8Rated supply voltage of closing and opening devices and auxiliary circuits4.9Rated supply frequency of closing and opening devices and auxiliary circuits14.10Rated pressures of compressed gas supply for operation and for interruption44.101Rated short-circuit breaking current34.102 Rated transient recovery voltage for terminal faults4.103Rated short-circuit making current.,554.104 Rated operating sequence.554.105 Rated characteristics for short-line faults554.106 Rated out-of-phase breaking current4.107Rated line-charging breaking current634.108Rated cable-charging breaking current4.109 Rated single capacitor bank breaking current4.110Rated back-to-back capacitor bank breaking current84.111Rated capacitor bank inrush making current674.112Rated small inductive breaking current4.113 Rated time quantities774.114Co-ordination of rated values35.Design and construction,5.1Requirements for liquids in circuit-breakers5.2Requirements for gases in circuit-breakers995.3Earthing of circuit-breakers815.4Auxiliary equipment.。,815.5Dependent power closing5.6Stored energy closing815.7Operation of releases815.8Low and high pressure interlocking devices5.9Nameplates5.101Requirements for simultaneity of poles.835.102 General requirement for operation5.103 Pressure limits of compressed gas for interruption in gas blast circuit-breakers335.104 Vent outlets89FIGURES 1 10 14%56IEC 19875-CHAPTER II:TESTS,SELECTION,ORDERS AND INSTALLATION6.Type tests.6.1 Dielectric tests.056.2 Radio interference voltage(r.i.v.)tests.6.3 Temperature-rise tests.6.4 Measurement of the resistance of the main circuit.6.5 Short-time withstand current and peak withstand current tests.6.101 Mechanical and environmental tests.6.102 Miscellaneous provisions for making and breaking tests.6.103 Test circuits for short circuit making and breaking tests.6.104 Short-circuit test quantities.551756.105 Short-circuit test procedure.6.106 Basic short-circuit test-duties.77!86.107 Critical current tests.6.108 Single-phase short-circuits tests.6.109 Short-line fault tests.6.110 Out-of-phase making and breaking tests.6.111 Capacitive current switching tests.6.112 Magnetizing and small inductive current switching tests.7.Routine tests.7.1 Power frequency voltage withstand dry tests on the main circuit.7.2 Voltage withstand tests on control and auxiliary circuits.7.3 Measurement of the resistance of the main circuit.7.101 Mechanical operating tests.2097.102 Design and visual:checks.2098.Guide to the selection of circuit-breakers for service.98.101 General8.102 Selection ot rated alues for service condituons2158.103 Selection of rated values for fault conditions.Information to he.given with enquiries.tenders and orders9.101 Information to be given with enquiries and orders.9.102 Information to be given with tenders.10.Rules for transport.storage.erection and maintenance.22910.1 Conditions during transport,storage and erection.22922910.2 Erection.22910.3 Maintenance.230FIGURES 15 to 32.CHAPTER IIl:APPENDICESAPPENDIx AA-Calculation of transient recovery voltages for short-line faults from rated characteristics.249APPENDIx BB-Capacitor bank inrush currents.259APPENDIX CC-Records and reports of type tests for making,breaking and short-time current performance.263APPENDIx DD-Determination of short-circuit power factor.271APPENDIX EE-Tightness specifications and tests.275APPENDIX FF-Method of drawing the envelope of the prospective transient recovery voltage of a circuit and determiningthe representative parameters.291APPENDIX GG-Methods of determining prospective transient recovery voltage waves.297APPENDIX HH-Example of a commissioning test programme.32356IEC 19877INTERNATIONAL ELECTROTECHNICAL COMMISSIONHIGH-VOLTAGE ALTERNATING-CURRENTCIRCUIT-BREAKERSFOREWORD1)The formal decisions or agreements ofthe IEC on technical matters,prepared by Technical Committees on which all the NationalCommittees having a special interest therein are represented,express,as nearly as possible,an international consensus of opinionon the subjects dealt with.2)They have the form of recommendations for international use and they are accepted by the National Committees in thatsense.3)In order to promote intermational unification,the IEC expresses the wish that all National Committees should adopt the text ofthe IEC recommendation for their national rules in so far as national conditions will permit.Any divergence between the IECrecommendation and the corresponding national rules should,as far as possible,be clearly indicated in the latter.PREFACEThis standard has been prepared by Sub-Committee 17A:High-voltage Switchgear and Controlgear,of I EC Technical CommitteeNo.17:Switchgear and Controlgear.This forms the fourth edition of I EC Publicatuion 56 and replaces I EC Publications 56-1,S6-2,56-3,56-4.56-4A,56-5 and 56-6and their amendments.The text of this standard is hased on the following documentsSix Months RuleReports on Voting17A(CO)14517A(CO)14917A(CO)15517A(CO)16917A(CO)15617A(CO)17017A(CO)15717A(CO)17117A(CO)159+A17A(CO)17217A(CO)16017A(CO)16717A(CO)16117A(CO)16517A(CO)17317A(CO)183+A17A(CO)17417A(CO)184+A17A(CO)17517A(CO)185+A17A(CO)176,I,II,III17A(CO)19117A(CO)17717A(CO)186+A17A(CO)17817A(CO)187+A17A(CO)17917A(CO)18817A(CO)18017A(CO)19017A(CO)18117A(CO)19217A(CO)19517A(CO)201Further information can be found in the relevant Reports on Voting,indicated in the table above.The supplementary sub-clauses are numbered from 101,onwards.The appendices and their figures are named,AA,BB,etc.The following I EC publications are quoted in this standard:Publication Nos.50(151)(1978):International Electrotechnical Vocabulary(IEV),Chapter 151:Electrical and MagneticDevices.50(441)(1984):Chapter 441:Switchgear,Controlgear and Fuses.50(604)(1986):Chapter 604:Generation,Transmission and Distribution of Electricity:Operation.60-1(1973):High-voltage Test Techniques,Part 1:General Definitions and Test Requirements.68-2-5(1975):Basic Environmental Testing Procedures,Part 2:Tests-Test Sa:Simulated Solar Radia-tion at Ground Level.