IEC_Guide_111-2004.pdf

INTERNATIONALELECTROTECHNICALCOMMISSIONGUIDE111Second edition2004-07Electrical high-voltage equipment in high-voltage substations Common recommendations for product standards Reference number IEC Guide 111:2004(E)LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.INTERNATIONALELECTROTECHNICALCOMMISSIONGUIDE111Second edition2004-07Electrical high-voltage equipment in high-voltage substations Common recommendations for product standards For price,see current catalogue IEC 2004 Copyright-all rights reservedNo 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,SwitzerlandTelephone:+41 22 919 02 11 Telefax:+41 22 919 03 00 E-mail:inmailiec.ch Web:www.iec.chSCommission Electrotechnique InternationaleInternational Electrotechnical Commission?PRICE CODE LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.2 Guide 111?IEC:2004(E)CONTENTS FOREWORD.4 INTRODUCTION.5 1 Scope.6 2 Reference documents.6 3 Guidance for the“Normative references”clause in product standards.8 4 Guidance for the“Definitions”clause in product standards.8 5 Environmental conditions.8 5.1 General.85.2 Normal environmental conditions.9 5.3 Special environmental conditions.10 6 Ratings.11 6.1 General.11 6.2 Highest voltage for equipment.11 6.3 Rated insulation levels.12 6.4 Rated frequency.12 6.5 Rated current.12 6.6 Rated short-time withstand current.12 6.7 Rated peak withstand current.12 6.8 Rated duration of short circuit.13 6.9 Rated supply voltage of auxiliary and control circuits.13 6.10 Rated supply frequency of auxiliary and control circuits.13 7 Design and construction.13 7.1 Requirements for liquids and gases in equipment.13 7.2 Earthing of equipment.14 7.3 Low-voltage part of equipment.14 7.4 Marking.14 7.5 Degrees of protection by enclosures.15 7.6 Creepage distances.15 7.7 Fire hazard.15 7.8 Noise level.15 7.9 Electromagnetic compatibility(EMC).15 7.10 Mechanical stresses on terminals.16 7.11 Interfaces.168 Tests.16 8.1 General.16 8.2 Type tests.17 8.3 Routine tests.18 8.4 Special tests.18 8.5 Sample tests.18 8.6 Commissioning tests.18 9 Rules for transport,storage,erection,operation and maintenance.19 LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.Guide 111?IEC:2004(E)3 10 Safety.19 10.1 General.1910.2 Electrical aspects.19 10.3 Mechanical aspects.19 10.4 Thermal aspects.19 10.5 Operation aspects.19 11 Effects of product standards on the natural environment.20 12 Guide for the selection of equipment according to use.20 13 Information to be given with enquiries,tenders and orders.20 Annex AIdentification of test specimens.21Table 1 Normal environmental conditions.9 Table 2 Special environmental conditions.10 Table 3 DC supply voltage.13Table 4 Auxiliary contact classes.14 Table A.1 List of drawings to be submitted by manufacturer.21 LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.4 Guide 111?IEC:2004(E)INTERNATIONAL ELECTROTECHNICAL COMMISSION _ELECTRICAL HIGH-VOLTAGE EQUIPMENT IN HIGH-VOLTAGE SUBSTATIONS COMMON RECOMMENDATIONS FOR PRODUCT STANDARDS FOREWORD This second edition of IEC Guide 111 has been prepared in accordance with Annex A of Part 1 of the ISO/IEC Directives by an ad hoc group of the Standardization Management Board set up to harmonize characteristics for substation standards.It constitutes a technical revision of the first edition,published in 1998.This edition has been amended to express more clearly the guidance being provided to product committees and contains corrected and completed technical material and references.The text of this guide is based on the following documents:Approval document Report on voting C/1325/DV C/1334/RV Full information on the voting for the approval of this Guide can be found in the report on voting indicated in the above table.LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.Guide 111?IEC:2004(E)5 INTRODUCTION This Guide is for use by technical committees(TCs)involved in high-voltage(HV)substation systems,such as:TC 13,TC 14,TC 17,TC 20,TC 22,TC 28,TC 32,TC 33,TC 36,TC 37,TC 38,TC 57,TC 95,TC 99.It is of paramount importance that the IEC,through this Guide,finds a way to overcome the lack of consistency and unnecessary discrepancies between standards within one system,even though a few discrepancies might be justified in certain cases according to the specificity of a given product or situation.Furthermore,the cost of over-standardization of