IEC_62271-207.pdf

FORM CDV(IEC)2009-01-09 Registered trademark of the International Electrotechnical Commission 17C/506/CDVCOMMITTEE DRAFT FOR VOTE(CDV)PROJET DE COMIT POUR VOTE(CDV)Project number IEC 62271-207 Numro de projet IEC/TC or SC:SC 17C CEI/CE ou SC:Secretariat/Secrtariat Germany Submitted for parallel voting in CENELEC Soumis au vote parallle au CENELEC Date of circulation Date de diffusion 2011-03-18 Closing date for voting(Voting mandatory for P-members)Date de clture du vote(Vote obligatoire pour les membres(P)2011-09-02 Also of interest to the following committees Intresse galement les comits suivants SC 17A Supersedes document Remplace le document 17C/487/CD,17C/498/CC Proposed horizontal standard Norme horizontale suggre Other TC/SCs are requested to indicate their interest,if any,in this CDV to the TC/SC secretary Les autres CE/SC sont requis dindiquer leur intrt,si ncessaire,dans ce CDV lintention du secrtaire du CE/SC Functions concerned Fonctions concernes Safety Scurit EMC CEM Environment Environnement Quality assurance Assurance qualit CE DOCUMENT EST TOUJOURS LTUDE ET SUSCEPTIBLE DE MODIFICATION.IL NE PEUT SERVIR DE RFRENCE.LES RCIPIENDAIRES DU PRSENT DOCUMENT SONT INVITS PRSENTER,AVEC LEURS OBSERVATIONS,LA NOTIFICATION DES DROITS DE PROPRIT DONT ILS AURAIENT VENTUELLEMENT CONNAISSANCE ET FOURNIR UNE DOCUMENTATION EXPLICATIVE.THIS DOCUMENT IS STILL UNDER STUDY AND SUBJECT TO CHANGE.IT SHOULD NOT BE USED FOR REFERENCE PURPOSES.RECIPIENTS OF THIS DOCUMENT ARE INVITED TO SUBMIT,WITH THEIR COMMENTS,NOTIFICATION OF ANY RELEVANT PATENT RIGHTS OF WHICH THEY ARE AWARE AND TO PROVIDE SUPPORTING DOCUMENTATION.Titre:Appareillage haute tension-Partie 207:Qualification sismique pour ensembles dappareillages isolation gazeuse pour des niveaux de tension assigne suprieurs 52 kV Title:High-voltage switchgear and controlgear-Part 207:Seismic qualification for gas-insulated switchgear assemblies for rated voltages above 52 kV Note dintroduction Introductory note The main changes in this document are:-the minimum voltage rating was changed from 72,5 kV to above 52 kV;-harmonisation with IEEE 693;-changes of the test procedures;-criteria of allowed stresses added;-dynamic analysis CQC added;ATTENTION VOTE PARALLLE CEI CENELEC Lattention des Comits nationaux de la CEI,membres du CENELEC,est attire sur le fait que ce projet de comit pour vote(CDV)de Norme internationale est soumis au vote parallle.Les membres du CENELEC sont invits voter via le systme de vote en ligne du CENELEC.ATTENTION IEC CENELEC PARALLEL VOTING The attention of IEC National Committees,members of CENELEC,is drawn to the fact that this Committee Draft for Vote(CDV)for an International Standard is submitted for parallel voting.The CENELEC members are invited to vote through the CENELEC online voting system.Copyright 2011 International Electrotechnical Commission,IEC.All rights reserved.It is permitted to download this electronic file,to make a copy and to print out the content for the sole purpose of preparing National Committee positions.You may not copy or mirror the file or printed version of the document,or any part of it,for any other purpose without permission in writing from IEC.62271-207 IEC:20 xx 2 17C/506/CDV CONTENTS CONTENTS.2 FOREWORD.3 1 Scope and object.5 2 Normative references.5 3 Terms and definitions.5 4 Seismic qualification requirements.5 5 Qualification by test.6 6 Qualification by combined test and numerical analysis.10 7 Evaluation of the seismic qualification.12 8 Documentation.13 Annex A(normative)Characterization of the test-set.15 Annex B(informative)Criteria for seismic adequacy of gas-insulated metal-enclosed switchgear.18 Bibliography.20 Figure 1:High required response spectrum,ZPA=5m/s2(0.5G).8 Figure 2:Moderate required response spectrum,ZPA=2.5m/s2(0.25G).8 Figure A.1 Nomogram for the determination of equivalent damping ratio.17 Table 1 Seismic qualification levels for switchgear assemblies Horizontal severities.6 62271-207 IEC:20 xx 3 17C/506/CDV INTERNATIONAL ELECTROTECHNICAL COMMISSION _ HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR Part 207:Seismic qualification for gas-insulated switchgear assemblies for rated voltages above 52 kV FOREWORD 1)The International Electrotechnical Commission(IEC)is a worldwide organization for standardization comprising all national electrotechnical committees(IEC National Committees).The object of IEC is to promote international co-operation on all questions concerning standardization in the electrical and electronic fields.To this end and in addition to other activities,IEC publishes International Standards,Technical Specifications,Technical Reports,Publicly Available Specifications(PAS)and Guides(hereafter referred to as“IEC Publication(s)”).Their preparation is entrusted to technical committees;any IEC National Committee interested in the subject dealt with may participate in this preparatory work.International,governmental and non-governmental organizations liaising with the IEC also parti