IEC 60502-1-1998 额定电压从1kV(Um=1.2kV)到30kV(Um=36kV)的挤压绝缘电力电缆及其附件.第1部分额定电压1kV(Um=1.2kV)和3kV(Um=3.6kV)的电缆.pdf

Power cables with extruded insulation and their accessories for rated voltages from 1 kV (Um = 1,2 kV) up to 30 kV (Um = 36 kV) Part 1: Cables for rated voltages of 1 kV (Um = 1,2 kV) and 3 kV (Um = 3,6 kV) Reference number IEC 60502-1:2004(E) INTERNATIONAL STANDARD IEC 60502-1 Second edition 2004-04 This English-language version is derived from the original bilingual publication by leaving out all French-language pages. Missing page numbers correspond to the French- language pages. Publication numbering As from 1 January 1997 all IEC publications are issued with a designation in the 60000 series. For example, IEC 34-1 is now referred to as IEC 60034-1. Consolidated editions The IEC is now publishing consolidated versions of its publications. For example, edition numbers 1.0, 1.1 and 1.2 refer, respectively, to the base publication, the base publication incorporating amendment 1 and the base publication incorporating amendments 1 and 2. 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IEC Just Published This summary of recently issued publications (www.iec.ch/online_news/ justpub) is also available by email. Please contact the Customer Service Centre (see below) for further information. Customer Service Centre If you have any questions regarding this publication or need further assistance, please contact the Customer Service Centre: Email: custserviec.ch Tel: [phone] Fax: [phone] Power cables with extruded insulation and their accessories for rated voltages from 1 kV (Um = 1,2 kV) up to 30 kV (Um = 36 kV) Part 1: Cables for rated voltages of 1 kV (Um = 1,2 kV) and 3 kV (Um = 3,6 kV) For price, see current catalogue IEC 2004 Copyright - all rights reserved No part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from the publisher. International Electrotechnical Commission, 3, rue de Varemb, PO Box 131, CH-1211 Geneva 20, Switzerland Telephone: [phone] Telefax: [phone] E-mail: inmailiec.ch Web: www.iec.ch INTERNATIONAL STANDARD IEC 60502-1 Second edition 2004-04 XA Commission Electrotechnique Internationale International Electrotechnical Commission PRICE CODE 60502-1 IEC:2004 3 CONTENTS FOREWORD.11 1 Scope.15 2 Normative references.15 3 Terms and definitions .19 3.1 Definitions of dimensional values (thicknesses, cross-sections, etc.).19 3.2 Definitions concerning the tests .19 4 Voltage designations and materials.21 4.1 Rated voltages .21 4.2 Insulating compounds.23 4.3 Sheathing compounds .25 5 Conductors.25 6 Insulation.25 6.1 Material .25 6.2 Insulation thickness .25 7 Assembly of multicore cables, inner coverings and fillers.29 7.1 Inner coverings and fillers.29 7.2 Cables with rated voltage 0,6/1 (1,2) kV.31 7.3 Cables with rated voltage 1,8/3 (3,6) kV.33 8 Metallic layers for single-core and multicore cables.33 9 Metallic screen .35 9.1 Construction.35 9.2 Requirements.35 10 Concentric conductor.35 10.1 Construction.35 10.2 Requirements.35 10.3 Application.35 11 Lead sheath.35 12 Metallic armour.37 12.1 Types of metallic armour.37 12.2 Materials .37 12.3 Application of armour.39 12.4 Dimensions of the armour wires and armour tapes.41 12.5 Correlation between cable diameters and armour dimensions .41 12.6 Round or flat wire armour .43 12.7 Double tape armour.43 13 Oversheath.43 13.1 General .43 13.2 Material .43 13.3 Thickness.45 14 Test conditions .45 14.1 Ambient temperature .45 14.2 Frequency and waveform of power frequency test voltages .45 14.3 Waveform of impulse test voltages .45 60502-1 IEC:2004 5 15 Routine tests .45 15.1 General .45 15.2 Electrical resistance of conductors.47 15.3 Voltage test .47 16 Sample tests.49 16.1 General .49 16.2 Frequency of sample tests.49 16.3 Repetition of tests.51 16.4 Conductor examination .51 16.5 Measurement of thickness of insulation and of non-metallic sheaths (including extruded separation sheaths, but excluding inner extruded coverings).51 16.6 Measurement of thickness of lead sheath .53 16.7 Measurement of armour wires and tapes.53 16.8 Measurement of external diameter.55 16.9 Hot set test for EPR, HEPR and XLPE insulations and elastomeric sheaths.55 17 Type tests, electrical.55 17.1 Insulation resistance measurement at ambient temperature .57 17.2 Insulation resistance measurement at maximum conductor temperature.57 17.3 Voltage test for 4 h .59 17.4 Impulse test for cables of rated voltage 1,8/3 (3,6) kV.59 18 Type tests, non-electrical.59 18.1 Measurement of thickness of insulation.61 18.2 Measurement of thickness of non-metallic sheaths (including extruded separation sheaths, but excluding inner coverings) .61 18.3 Tests for determining the mechanical properties of insulation before and after ageing .61 18.4 Tests for determining the mechanical properties of non-metallic sheaths before and after ageing.63 18.5 Additional ageing test on pieces of completed cables .63 18.6 Loss of mass test on PVC sheaths of type ST2.65 18.7 Pressure test at high temperature on insulations and non-metallic sheaths.65 18.8 Test on PVC insulation and sheaths and halogen free sheaths at low temperatures .65 18.9 Test for resistance of PVC insulation and sheaths to cracking (heat shock test) .65 18.10 Ozone resistance test for EPR and HEPR insulations.67 18.11 Hot set test for EPR, HEPR and XLPE insulations and elastomeric sheaths.67 18.12 Oil immersion test for elastomeric sheaths.67 18.13 Water absorption test on insulation .67 18.14 Fire tests.67 18.15 Measurement of carbon black content of black PE oversheaths.69 18.16 Shrinkage test for XLPE insulation.71 18.17 Special bending test .71 18.18 Determination of hardness of HEPR insulation .71 18.19 Determination of the elastic modulus of HEPR insulation.71 60502-1 IEC:2004 7 18.20 Shrinkage test for PE oversheaths .73 18.21 Additional mechanical tests on halogen free oversheaths.73 18.22 Water absorption test for halogen free oversheaths.73 19 Electrical tests after installation.73 Annex A (normative) Fictitious calculation method for determination of dimensions of protective coverings .95 A.1 General.95 A.2 Method .95 Annex B (normative) Rounding of numbers.107 B.1 Rounding of numbers for the purpose of the fictitious calculation method.107 B.2 Rounding of numbers for other purposes.107 Annex C (normative) Determination of hardness of HEPR insulations .111 C.1 Test piece.1