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IEC 62271-1 Edition 2.0 2017-07 INTERNATIONAL STANDARD NORME INTERNATIONALE Hig

IEC 62271-1 Edition 2.0 2017-07 INTERNATIONAL STANDARD NORME INTERNATIONALE High-voltage switchgear and controlgear – Part 1: Common specifications for alternating current switchgear and controlgear Appareillage à haute tension – Partie 1: Spécifications communes pour appareillage à courant alternatif INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE ICS 29.130.10; 29.130.99 ISBN 978-2-8322-4353-4 ® Registered trademark of the International Electrotechnical Commission Marque déposée de la Commission Electrotechnique Internationale ® Warning! Make sure that you obtained this publication from an authorized distributor. Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé. – 2 – IEC 62271-1:2017  IEC 2017 CONTENTS FOREWORD ........................................................................................................................... 8 INTRODUCTION ................................................................................................................... 11 1 Scope ............................................................................................................................ 12 2 Normative references .................................................................................................... 12 3 Terms and definitions .................................................................................................... 14 3.1 General terms and definitions ............................................................................... 15 3.2 Assemblies of switchgear and controlgear ............................................................ 18 3.3 Parts of assemblies .............................................................................................. 18 3.4 Switching devices ................................................................................................. 18 3.5 Parts of switchgear and controlgear ...................................................................... 18 3.6 Operational characteristics of switchgear and controlgear ..................................... 22 3.6.5 Terms and definitions relative to pressure (or density) ................................... 23 3.6.6 Terms and definitions relating to gas and vacuum tightness .......................... 23 3.6.7 Terms and definitions relating to liquid tightness............................................ 25 3.7 Characteristic quantities ....................................................................................... 25 3.8 Index of definitions ................................................................................................ 26 4 Normal and special service conditions ........................................................................... 28 4.1 Normal service conditions ..................................................................................... 28 4.1.1 General ......................................................................................................... 28 4.1.2 Indoor switchgear and controlgear ................................................................. 28 4.1.3 Outdoor switchgear and controlgear .............................................................. 29 4.2 Special service conditions ..................................................................................... 29 4.2.1 General ......................................................................................................... 29 4.2.2 Altitude .......................................................................................................... 29 4.2.3 Exposure to pollution ..................................................................................... 30 4.2.4 Temperature and humidity ............................................................................. 30 4.2.5 Exposure to abnormal vibrations, shock or tilting ........................................... 30 4.2.6 Wind speed ................................................................................................... 31 4.2.7 Other parameters .......................................................................................... 31 5 Ratings .......................................................................................................................... 31 5.1 General ................................................................................................................. 31 5.2 Rated voltage (Ur) ................................................................................................ 31 5.2.1 General ......................................................................................................... 31 5.2.2 Range I for rated voltages of 245 kV and below ............................................. 31 5.2.3 Range II for rated voltages above 245 kV ...................................................... 32 5.3 Rated insulation level (Ud, Up, Us) ........................................................................ 32 5.4 Rated frequency (fr) .............................................................................................. 36 5.5 Rated continuous current (Ir) ................................................................................ 36 5.6 Rated short-time withstand current (Ik) ................................................................. 36 5.7 Rated peak withstand current (Ip) ......................................................................... 37 5.8 Rated duration of short-circuit (tk) ......................................................................... 37 5.9 Rated supply voltage of auxiliary and control circuits (Ua) .................................... 37 5.9.1 General ......................................................................................................... 37 5.9.2 Rated supply voltage (Ua) ............................................................................. 37 5.10 Rated supply frequency of auxiliary and control circuits ........................................ 38 5.11 Rated pressure of compressed gas supply for controlled pressure systems .......... 38 IEC 62271-1:2017  IEC 2017 – 3 – 6 Design and construction ................................................................................................ 39 6.1 Requirements for liquids in switchgear and controlgear ......................................... 39 6.2 Requirements for gases in switchgear and controlgear ......................................... 39 6.3 Earthing of switchgear and controlgear ................................................................. 39 6.4 Auxiliary and control equipment and circuits ......................................................... 39 6.4.1 General ......................................................................................................... 39 6.4.2 Protection against electric shock ................................................................... 40 6.4.3 Components installed in enclosures ............................................................... 40 6.5 Dependent power operation .................................................................................. 43 6.6 Stored energy operation ........................................................................................ 43 6.6.1 General ......................................................................................................... 43 6.6.2 Energy storage in gas receivers or hydraulic accumulators ............................ 44 6.6.3 Energy storage in springs (or weights) ........................................................... 44 6.6.4 Manual charging ............................................................................................ 44 6.6.5 Motor charging .............................................................................................. 44 6.6.6 Energy storage in capacitors ......................................................................... 44 6.7 Independent unlatched operation (independent manual or power operation) ......... 44 6.8 Manually operated actuators ................................................................................. 45 6.9 Operation of releases ............................................................................................ 45 6.9.1 General ......................................................................................................... 45 6.9.2 Shunt closing release .................................................................................... 45 6.9.3 Shunt opening release ................................................................................... 45 6.9.4 Capacitor operation of shunt releases ............................................................ 45 6.9.5 Under-voltage release ................................................................................... 46 6.10 Pressure/level indication ....................................................................................... 46 6.10.1 Gas pressure ................................................................................................. 46 6.10.2 Liquid level .................................................................................................... 46 6.11 Nameplates........................................................................................................... 46 6.11.1 General ......................................................................................................... 46 6.11.2 Application ..................................................................................................... 46 6.12 Locking devices .................................................................................................... 48 6.13 Position indication ................................................................................................. 48 6.14 Degrees of protection provided by enclosures ....................................................... 48 6.14.1 General ......................................................................................................... 48 6.14.2 Protection of persons against access to hazardous parts and protection of the equipment against ingress of solid foreign objects (IP coding) ............. 48 6.14.3 Protection against ingress of water (IP coding) .............................................. 48 6.14.4 Protection against mechanical impact under normal service conditions (IK coding) ..................................................................................................... 48 6.15 Creepage distances for outdoor insulators ............................................................ 49 6.16 Gas and vacuum tightness .................................................................................... 49 6.16.1 General ......................................................................................................... 49 6.16.2 Controlled pressure systems for gas .............................................................. 49 6.16.3 Closed pressure systems for gas ................................................................... 49 6.16.4 Sealed pressure systems ............................................................................... 50 6.17 Tightness for liquid systems .................................................................................. 50 6.17.1 General ......................................................................................................... 50 6.17.2 Leakage rates ................................................................................................ 50 6.18 Fire hazard (flammability) ..................................................................................... 50 – 4 – IEC 62271-1:2017  IEC 2017 6.19 Electromagnetic compatibility (EMC) ..................................................................... 50 6.20 X-ray emission ...................................................................................................... 51 6.21 Corrosion .............................................................................................................. 51 6.22 Filling levels for insulation, switching and/or operation .......................................... 51 7 Type tests ..................................................................................................................... 51 7.1 General ................................................................................................................. 51 7.1.1 Basics ........................................................................................................... 51 7.1.2 Information for identification of test objects .................................................... 51 7.1.3 Information to be included in type-test reports ............................................... 52 7.2 Dielectric tests ...................................................................................................... 52 7.2.1 General ......................................................................................................... 52 7.2.2 Ambient air conditions during tests ................................................................ 52 7.2.3 Wet test procedure ........................................................................................ 53 7.2.4 Arrangement of the equipment ....................................................................... 53 7.2.5 Criteria to pass the test ................................................................................. 54 7.2.6 Application of the test voltage and test conditions .......................................... 54 7.2.7 Tests of switchgear and controlgear of Ur ≤ 245 kV ....................................... 58 7.2.8 Tests of switchgear and controlgear of Ur > 245 kV ....................................... 58 7.2.9 Artificial pollution tests for outdoor insulators ................................................. 59 7.2.10 Partial discharge tests ................................................................................... 59 7.2.11 Dielectric tests on auxiliary and control circuits .............................................. 59 7.2.12 Voltage test as condition check ..................................................................... 59 7.3 Radio interference voltage (RIV) test .................................................................... 60 7.4 Resistance measurement ...................................................................................... 60 7.4.1 Measurement of the resistance of auxiliary contacts class 1 and class 2........ 60 7.4.2 Measurement of the resistance of auxiliary contacts class 3 .......................... 60 7.4.3 Electrical continuity of earthed metallic parts test .......................................... 60 7.4.4 Resistance measurement of contacts and connections in the main circuit as a condition check ............................................................................ 60 7.5 Continuous current tests ....................................................................................... 61 7.5.1 Condition of the test object ............................................................................ 61 7.5.2 Arrangement of the equipment ....................................................................... 61 7.5.3 Test current and duration ............................................................................... 62 7.5.4 Temperature measurement during test .......................................................... 63 7.5.5 Resistance of the main circuit ........................................................................ 64 7.5.6 Criteria to pass test ....................................................................................... 64 7.6 Short-time withstand current and peak withstand current tests .............................. 68 7.6.1 General ......................................................................................................... 68 7.6.2 Arrangement of the equipment and of the test circuit ..................................... 68 7.6.3 Test current and duration ............................................................................... 69 7.6.4 Conditions of the test object after test ............................................................ 70 7.7 Verification of the protection ................................................................................. 70 7.7.1 Verification of the IP coding ........................................................................... 70 7.7.2 Verification of the IK coding ........................................................................... 70 7.8 Tightness tests ..................................................................................................... 71 7.8.1 General ......................................................................................................... 71 7.8.2 Controlled pressure systems for gas .............................................................. 72 7.8.3 Closed pressure systems for gas ................................................................... 72 7.8.4 Sealed pressure systems ............................................................................... 73 IEC 62271-1:2017  IEC 2017 – 5 – 7.8.5 Liquid tightness tests ..................................................................................... 73 7.9 Electromagnetic compatibility tests (EMC) ............................................................ 73 7.9.1 Emission tests ............................................................................................... 73 7.9.2 Immunity tests on auxiliary and control circuits .............................................. 76 7.9.3 Additional EMC tests on auxiliary and control circuits .................................... 78 7.10 Additional tests on auxiliary and control circuits .................................................... 79 7.10.1 General ......................................................................................................... 79 7.10.2 Functional tests ............................................................................................. 79 7.10.3 Verification of the operational characteristics of auxiliary contacts ................. 79 7.10.4 Environmental tests ....................................................................................... 80 7.10.5 Dielectric test ................................................................................................ 81 7.11 X-radiation test for vacuum interrupters ................................................................ 81 7.11.1 General requirements .................................................................................... 81 7.11.2 Test voltage and measurement procedure ..................................................... 83 7.11.3 Acceptance criteria ........................................................................................ 83 8 Routine tests ................................................................................................................. 84 8.1 General ................................................................................................................. 84 8.2 Dielectric test on the main circuit .......................................................................... 84 8.3 Tests on auxiliary and control circuits ................................................................... 85 8.3.1 Inspection of auxiliary and control circuits, and verification of conformity to the circuit diagrams and wiring diagrams ................................................... 85 8.3.2 Functional tests ............................................................................................. 85 8.3.3 Verification of protection against electrical shock ........................................... 85 8.3.4 Dielectric tests ............................................................................................... 85 8.4 Measurement of the resistance of the main circuit ................................................. 85 8.5 Tightness test ....................................................................................................... 86 8.5.1 General ......................................................................................................... 86 8.5.2 Controlled pressure systems for gas .............................................................. 86 8.5.3 Closed pressure systems for gas ................................................................... 86 8.5.4 Sealed pressure systems ............................................................................... 86 8.5.5 Liquid tightness tests ..................................................................................... 86 8.6 Design and visual checks ...................................................................................... 86 9 Guide to the selection of switchgear and controlgear (informative) ................................ 87 9.1 General ................................................................................................................. 87 9.2 Selection of rated values ....................................................................................... 87 9.3 Cable-interface considerations .............................................................................. 87 9.4 Continuous or temporary overload due to changed service conditions ................... 87 9.5 Environmental aspects .......................................................................................... 87 9.5.1 Service conditions ......................................................................................... 87 9.5.2 Clearances affected by service conditions ..................................................... 87 9.5.3 High humidity ................................................................................................. 87 9.5.4 Solar radiation ............................................................................................... 88 10 Information to be given with enquiries, tenders and orders (informative) ........................ 88 10.1 General ................................................................................................................. 88 10.2 Information with enquiries and orders ................................................................... 88 10.3 Information with tenders ........................................................................................ 89 11 Transport, storage, installation, operating instructions and maintenance........................ 90 11.1 General ................................................................................................................. 90 11.2 Conditions during transport, storage and installation ............................................. 90 – 6 – IEC 62271-1:2017 uploads/s1/iec-62271-1-edition-2017.pdf