IEC 62271-1 INTERNATIONAL STANDARD NORME IN NATIONALE High-voltage switchgear and controlgear — Part 1: Common specifications Appareillage a haute tension - Partie 4: Spécifications communes. INTERNATIONAL ELECTROTECHNICAL, ‘COMMISSION ‘COMMISSION ELECTROTECHNIQUE INTERNATIONALE PRICE CODE. (CODE PRIX cs 20190.10, 29 13088 ten 2-9318-0328-262271-1 © IEC:2007 CONTENTS FOREWORD. 6 1 General. 8 1.4 Scope. “ 8 1.2 Normative references 28 2 Normal and special service conditions. 2 2.1. Normal service conditions 13 2.2 Special service conditions 14 3. Terms and definitions 16 3.1. General terms. 16 3.2. Assemblies of switchgear and controlgear.. 19 3.3 Parts of assemblies 19 3.4 Switching devices.....00 os 20 3.5 Parts of ewitchgear and contralgear 20 3.6 Operation 26 3.7 Characteristic quantities. 29 3.8 Inidex of definitions. 30 4° Ratings... 32 41 Rated voltage (t). 33 4.2 Rated insulation level. 33 4.3 Rated frequency (f;) : 37 4.4 Rated normal current and temperature rise. 37 4.5 Rated short-time withstand current (ix) 40. 4.8 Rated peak withstand current (ip) 40 4.7 Rated duration of short circuit (24) 7 a1 4.8 Rated supply voltage of closing and opening devices and of auxiliary and control cizcults (Ug)... a 4.9 Rated supply frequoncy of closing and opening devices and of auxiliary circuits 43 4.10 Rated pressure of compressed gas supply for controlled pressure systems, 43 4.11. Rated filing levels for insulation and/or operation. 43 5 Design and construction ied lise 83 5.1. Requirements for liquids in switchgear and controlgear 43 5.2 Requirements for gases in switchgear and controlgear 43 5.3. Earthing of switchgear and controlgear... 44 5.4 Auxiliary and control equipment. 44 6.5 Dependent power operation. 50 5.6 Stored energy operation 50 5.7 Independent manual or power operation (independent unlatched operation)... 51 5.8 Operation of releases 54 5.9 Low- and high-pressure interlocking and monitoring devices 52 5.10 Nameplates 52 5.11 Interlocking devices. 53 5.12 Position indication 53 5.13. Degrees of protection provided by enclosures: 54 5.14 Creepage distances for outdoor insulators. 55 5.15, Gas and vacuum tightness 566271-1 © 1EC:2007 5.16 Liquid tightness 5.17 Fire hazard (flammability) 5.18 Electromagnetic compati 5.19 X-ray emission 5.20 Corrosion 6 Type tests 6.1 General 6.2 Dielectric tests .. 6.3 Radio interference voltage (rv) test 6.4 Measurement of the resistance of circuits. 6.5 Temperature-rise tests . « 6.6 Short-time withstand current and peak withstand current tests 6.7 Verification of the protection. 6.8 Tightness tests. 6.9 Electromagnetic compatibility tests (EMC). 6.10 Additional tests on auxiliary and control circuits 6.11 X-radiation test procedure for vacuum interrupters 7 Routine tests a“. 7A. Dielectric test on the main circuit. 7.2. Tests on auxiliary and control circuits... 7 7.3. Measurement of the resistance of the main circuit 7.4 Tightness test. 7.8. Design and visual checks 8 Guide to the selection of switchgear and controlgear. 8.1 Selection of rated values 8.2 Continuous or temporary overload due to changed service conditions 8 Information to be given with enquiries, tenders and orders 8.1 Information with enquiries and orders... 9.2 Information with tenders 10 Transport, storage, installation, operation and maintenance 10.1. Conditions during transport, storage and installation 94 10.2 Installation 94 10.3 Operation . sven 96 10.4 Maintenance, 96 11 Safety, nf 89 11.4. Precautions by manufacturers si - 100 11.2 Precautions by users 100 11.3 Electrical aspects i . 100 11.4 Mechanical aspects ee 101 11.8 Thermal aspects. paces a 101 11.6 Operation aspects 404 12. Influence of the product on the environment. 101 ‘Annex A (normative) Identification of test specimens. snc OR Annex 8 (normative) Determination of the equivalent r.m.s. value of a short-time current during a short circuit of a given duration .... 104 ‘Annex G (normative) Method for the weatherproofing test for outdoor switchgear and ContrOlgeR ann 105