IEC 60071-1 2019 绝缘 第一部分:定义、原则和规则.pdf

IEC IEC60071-1
Edition 9.0 2019-08 INTERNATIONAL STANDARD NORME INTERNATIUDNALE
inside colour HORIZONTAL STANDARD NORME HORIZONTALE
Insulation co-ordination Part 1: Definitions, principles and rules Coordination de lisolement- Partie 1:Definitions,principes etregles
INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE
ICS 29.080.30 ISBN 978-2-8322-7171-1
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. Copyright Inde@ Registered yadensask et the Intenafonal Electrotecteicel Comnissiontion Elecirotechniqus Intemationale
NO:1Or Rees, :*24 MDT
-2-IEC 60071-1:2019 IEC 2019 CONTENTS
FOREWORD.4 1Scope...6 2Normative references..6 3Terms and definitions...7 4Abbreviated terms and symbols..14 4.1General.14 4.2Subscripts..14 4.3Letter symbols...14 4.4Abbreviations ..15 5Procedure for insulation co-ordination15 5.1General outline of the procedure...15 5.2Determination of the representative voltages and overvoltages ( p)16 5.3Determination of the co-ordination withstand voltages (Ccw)..18 5.4Determination of the required withstand voltage (Viw) ..18 5.5Selection of the rated insulation level.....19 5.6List of standard rated short-duration power frequency withstand voltages...20 5.7List of standard rated impulse withstand voltages.. 20 5.8Ranges for highest voltage for equipment...20 5.9Environmental conditions..20 5.9.1Normal environmental conditions .20 5.9.2Standard reference atmospheric conditions.20 5.10Selection of the standard insulation level .20 5.11Background of the standard insulation level...24 5.11.1General.24 5.11.2Standard rated switching impulse withstand voltage..25 5.11.3Standard rated lightning impulse withstand voltage..25 6Requirements for standard withstand voltage tests..25 6.1General requirements..25 6.2Standard short-duration power-frequency withstand voltage tests. 6.3Standard impulse wi...