1、NORME INTERNATIONALE CEI IEC INTERNATIONAL STANDARD 61621 Premiredition Firstedition 199709 Matriauxisolantssolidessecs Essaidersistanceauxdchargeslarc hautetension,faiblecourant Dry,solidinsulatingmaterials Resistancetesttohighvoltage, lowcurrentarcdischarges Numroderfrence Referencenumber CEI/IEC6
2、1621:1997Numrosdespublications Depuisle1erjanvier1997,lespublicationsdelaCEI sontnumrotespartirde60000. Publicationsconsolides Lesversionsconsolidesdecertainespublicationsde laCEIincorporantlesamendementssontdisponibles. Parexemple,lesnumrosddition1.0,1.1et1.2 indiquentrespectivementlapublicationdeb
3、ase,la publicationdebaseincorporantlamendement1,etla publicationdebaseincorporantlesamendements1 et2. Validitdelaprsentepublication LecontenutechniquedespublicationsdelaCEIest constammentrevuparlaCEIafinquilreflteltat actueldelatechnique. Desrenseignementsrelatifsladatede reconfirmationdelapublicati
4、onsontdisponiblesdans leCataloguedelaCEI. Lesrenseignementsrelatifscesrvisions,ltablis sementdesditionsrvisesetauxamendements peuventtreobtenusauprsdesComitsnationauxde laCEIetdanslesdocumentscidessous: BulletindelaCEI AnnuairedelaCEI Accsenligne* CataloguedespublicationsdelaCEI Publiannuellementetm
5、isjourrgulirement (Accsenligne)* Terminologie,symbolesgraphiques etlittraux Encequiconcernelaterminologiegnrale,lelecteur sereporteralaCEI60050: VocabulaireElectro techniqueInternational (VEI). Pourlessymbolesgraphiques,lessymboleslittraux etlessignesdusagegnralapprouvsparlaCEI,le lecteurconsulteral
6、aCEI60027: Symboleslittraux utiliserenlectrotechnique,laCEI60417:Symboles graphiquesutilisablessurlematriel.Index,relevet compilationdesfeuillesindividuelles, etlaCEI60617: Symbolesgraphiquespourschmas. PublicationsdelaCEItabliespar lemmecomitdtudes Lattentiondulecteurestattiresurleslistesfigurant l
7、afindecettepublication,quinumrentles publicationsdelaCEIprparesparlecomit dtudesquiatablilaprsentepublication. * Voiradressesitewebsurlapagedetitre. Numbering Asfromthe1stJanuary1997allIECpublicationsare issuedwithadesignationinthe60000series. Consolidatedpublications ConsolidatedversionsofsomeIECpu
8、blications includingamendmentsareavailable.Forexample, editionnumbers1.0,1.1and1.2refer,respectively,to thebasepublication,thebasepublication incorporatingamendment1andthebasepublication incorporatingamendments1and2. Validityofthispublication ThetechnicalcontentofIECpublicationsiskeptunder constantr
9、eviewbytheIEC,thusensuringthatthe contentreflectscurrenttechnology. Informationrelatingtothedateofthereconfirmationof thepublicationisavailableintheIECcatalogue. Informationontherevisionwork,theissueofrevised editionsandamendmentsmaybeobtainedfrom IEC NationalCommitteesandfromthefollowing IECsources
10、: IECBulletin IECYearbook Onlineaccess* CatalogueofIECpublications Publishedyearlywithregularupdates (Onlineaccess)* Terminology,graphicalandletter symbols Forgeneralterminology,readersarereferredto IEC60050:InternationalElectrotechnicalVocabulary (IEV). Forgraphicalsymbols,andlettersymbolsandsigns
11、approvedbytheIECforgeneraluse,readersare referredtopublicationsIEC60027: Lettersymbolsto beusedinelectricaltechnology ,IEC60417: Graphical symbolsforuseonequipment.Index,surveyand compilationofthesinglesheets andIEC60617: Graphicalsymbolsfordiagrams. IECpublicationspreparedbythesame technicalcommitt
12、ee Theattentionofreadersisdrawntotheendpagesof thispublicationwhichlisttheIECpublicationsissued bythetechnicalcommitteewhichhaspreparedthe presentpublication. * Seewebsiteaddressontitlepage.NORME INTERNATIONALE CEI IEC INTERNATIONAL STANDARD 61621 Premiredition Firstedition 199709 Matriauxisolantsso
13、lidessecs Essaidersistanceauxdchargeslarc hautetension,faiblecourant Dry,solidinsulatingmaterials Resistancetesttohighvoltage, lowcurrentarcdischarges CommissionElectrotechniqueInternationale InternationalElectrotechnicalCommission Pourprix,voircatalogueenvigueur Forprice,seecurrentcatalogue IEC1997
14、Droitsdereproductionrservs Copyrightallrightsreserved Aucunepartiedecettepublicationnepeuttrereproduiteni utilisesous quelqueformequecesoitetparaucun procd,lectroniqueoumcanique,ycomprislaphoto copieetlesmicrofilms,sanslaccordcritdelditeur. Nopartofthispublicationmaybereproducedorut ilizedin anyform
15、orbyanymeans,electronicormechanical, includingphotocopyingandmicrofilm,withoutpermissionin writingfromthepublisher. InternationalElectrotechnicalCommission 3,ruedeVarembGeneva,Switzerland Telefax:+41229190300 email:inmailiec.ch IECwebsitehttp:/www.iec.ch CODEPRIX PRICECODE M2 61621CEI:1997 SOMMAIRE
16、Pages AVANTPROPOS 4 Articles 1Domaine dapplication. 6 2Rfrences normatives. 6 3Dfinitions 8 4Appareillage. 8 4.1Circuit dessai 8 4.2 Electrodesetmontagedeslectrodes 12 4.3Chambre dessai 13 4.4Calibrage. 14 5Eprouvette 14 6Conditionnement 14 7Mode opratoire. 14 8Rsultats 16 8.1 Lersultatdecetessaiest
17、letempsmispourprovoquerledfaut, exprimensecondes. 16 8.2 Quatretypesgnrauxdedfautonttobservs. 16 9Rapport 16 Tableau1Squencecorrespondantdespaliersde1min . 18 Figures 1 Exempledecircuitlectrique 20 2 Electrodemontesurunetige(exemple) 22 3 Montagedeslectrodes(exemple) . 2461621IEC:1997 3 CONTENTS Pag
18、e FOREWORD. 5 Clause 1Scope. 7 2Normative references. 7 3Definitions 9 4Apparatus. 9 4.1Test circuit. 9 4.2 Electrodesandelectrodeassembly 13 4.3Test chamber 15 4.4Calibration. 15 5Specimens. 15 6Conditioning. 15 7Procedure. 15 8Results. 1 7 9Report 1 7 Table1Sequenceof1minsteps 19 Figures 1 Example
19、forelectricalcircuit 21 2 Electrodemountedinashank(example) 23 3 Electrodeassembly(example) 254 61621CEI:1997 COMMISSIONELECTROTECHNIQUEINTERNATIONALE _ MATRIAUXISOLANTSSOLIDESSECS ESSAIDERSISTANCEAUXDCHARGESLARC HAUTETENSION,FAIBLECOURANT AVANTPROPOS 1) LaCEI(CommissionElectrotechniqueInternational
20、e)estuneorganisationmondialedenormalisationcompose delensembledescomitslectrotechniquesnationaux(ComitsnationauxdelaCEI).LaCEIapourobjetde favoriserlacooprationinternationalepourtouteslesquestionsdenormalisationdanslesdomainesde llectricitetdellectronique.Aceteffet,laCEI,entreautresactivits,publiede
21、sNormesInternationales. Leurlaborationestconfiedescomitsdtudes,auxtravauxdesquelstoutComitnationalintressparle sujettraitpeutparticiper.Lesorganisationsinternationales,gouvernementalesetnongouvernementales,en liaisonaveclaCEI,participentgalementauxtravaux.LaCEIcollaboretroitementaveclOrganisation In
22、ternationaledeNormalisation(ISO),selondesconditionsfixesparaccordentrelesdeuxorganisations. 2) LesdcisionsouaccordsofficielsdelaCEIconcernantlesquestionstechniques,reprsentent,danslamesure dupossibleunaccordinternationalsurlessujetstudis,tantdonnquelesComitsnationauxintresss sontreprsentsdanschaquec
23、omitdtudes. 3) Lesdocumentsproduitsseprsententsouslaformederecommandationsinternationales.Ilssontpublis commenormes,rapportstechniquesouguidesetagrscommetelsparlesComitsnationaux. 4) Danslebutdencouragerlunificationinternationale,lesComitsnationauxdelaCEIsengagentappliquerde faontransparente,danstou
24、telamesurepossible,lesNormesinternationalesdelaCEIdansleursnormes nationalesetrgionales.ToutedivergenceentrelanormedelaCEIetlanormenationaleourgionale correspondantedoittreindiqueentermesclairsdanscettedernire. 5) LaCEInafixaucuneprocdureconcernantlemarquagecommeindicationdapprobationetsaresponsabil
25、it nestpasengagequandunmatrielestdclarconformelunedesesnormes. 6) LattentionestattiresurlefaitquecertainsdeslmentsdelaprsenteNormeinternationalepeuventfaire lobjetdedroitsdepropritintellectuelleoudedroitsanalogues.LaCEInesauraittretenuepour responsabledenepasavoiridentifidetelsdroitsdepropritetdenep
26、asavoirsignalleurexistence. LaNormeinternationaleCEI61621attablieparlesouscomit15E:Mthodesdetest,du comitdtudes15delaCEI:Matriauxisolants. Letextedecettenormeestissudesdocumentssuivants: FDIS Rapportdevote 15E/56/FDIS 15E/90/RVD Lerapportdevoteindiqudansletableaucidessusdonnetouteinformationsurlevot
27、eayant aboutilapprobationdecettenorme.61621IEC:1997 5 INTERNATIONALELECTROTECHNICALCOMMISSION _ DRY,SOLIDINSULATINGMATERIALS RESISTANCETESTTOHIGHVOLTAGE, LOWCURRENTARCDISCHARGES FOREWORD 1) TheIEC(InternationalElectrotechnicalCommission)isaworldwideorganizationforstandardizationcomprising allnationa
28、lelectrotechnicalcommittees(IECNationalCommittees).TheobjectoftheIECistopromote internationalcooperationonallquestionsconcerningstandardizationintheelectricalandelectronicfields.To thisendandinadditiontootheractivities,theIECpublishesInternationalStandards.Theirpreparationis entrustedtotechnicalcomm
29、ittees;anyIECNationalCommitteeinterestedinthesubjectdealtwithmay participateinthispreparatorywork.International,governmentalandnongovernmentalorganizationsliaising withtheIECalsoparticipateinthispreparation.TheIECcollaboratescloselywiththeInternationalOrganization forStandardization(ISO)inaccordance
30、withconditionsdeterminedbyagreementbetweenthetwo organizations. 2) TheformaldecisionsoragreementsoftheIEContechnicalmattersexpress,asnearlyaspossible,an internationalconsensusofopinionontherelevantsubjectssinceeachtechnicalcommitteehasrepresentation fromallinterestedNationalCommittees. 3) Thedocumen
31、tsproducedhavetheformofrecommendationsforinternationaluseandarepublishedintheform ofstandards,technicalreportsorguidesandtheyareacceptedbytheNationalCommitteesinthatsense. 4) Inordertopromoteinternationalunification,IECNationalCommitteesundertaketoapplyIECInternational Standardstransparentlytothemax
32、imumextentpossibleintheirnationalandregionalstandards.Any divergencebetweentheIECStandardandthecorrespondingnationalorregionalstandardshallbeclearly indicatedinthelatter. 5) TheIECprovidesnomarkingproceduretoindicateitsapprovalandcannotberenderedresponsibleforany equipmentdeclaredtobeinconformitywit
33、honeofitsstandards. 6) AttentionisdrawntothepossibilitythatsomeoftheelementsofthisInternationalStandardmaybethesubject ofpatentrights.TheIECshallnotbeheldresponsibleforidentifyinganyorallsuchpatentrights. InternationalStandardIEC61621hasbeenpreparedbysubcommittee15E:Methodsoftest,of IECtechnicalcomm
34、ittee15:Insulatingmaterials. Thetextofthisstandardisbasedonthefollowingdocuments: FDIS Reportonvoting 15E/56/FDIS 15E/90/RVD Fullinformationonthevotingfortheapprovalofthisstandardcanbefoundinthereporton votingindicatedintheabovetable.6 61621CEI:1997 MATRIAUXISOLANTSSOLIDESSECS ESSAIDERSISTANCEAUXDCH
35、ARGESLARC HAUTETENSION,FAIBLECOURANT 1 Domainedapplication LaprsenteNormeinternationaledcritunemthodedessaipermettant,dansunpremier temps,unediffrenciationparmidesmatriauxisolantssimilaires,selonleurrsistanceaux dommagesquandilssontexpossdesdchargeshautetension,faiblecourantseproduisant proximitdela
36、surface. Lesdchargesprovoquentunedcompositionthermiqueetchimiquelocalise,ainsiquune rosion,etfinalementuncheminconducteurseformeautraversdumatriauisolant.La svritdesconditionsdessaiestprogressivementaugmente.Auxpremiersstades,une dchargelarcavecuncourantfaibleestinterrompuedefaonrptitive,alorsquaux
37、derniersstadeslecourantdelarcestaugmentparpalierssuccessifs. Lamthodedessaisappliqueenraisondesacommoditetdelabrivetncessairede lessai,pourfaireuncontrleprliminairedesmatriaux,afindedtecterleffetdes modificationsdanslacomposition,etpourdesessaisdecontrledequalit. Lexpriencerelativecetessaiaindiquune
38、reproductibilitacceptablepourlesmatriaux thermodurcis.Enutilisantdesthermoplastiques,certainslaboratoiresdessaiindiquentde grandesvariationsinacceptablesdanslesrsultatsdessaiconduisantlarecommandationde nepasutiliserlessaipourlesthermoplastiques. NOTEDestentativessontfaitespourdiminuerlavariabilitde
39、srsultatsdessaisurlesthermoplastiquesen contrlantlapressiondellectrodeetlaprofondeurdelapntrationdanslematriaupendantlessai.Sansuntel contrledellectrode,lesessaissurplusieursthermoplastiquespeuventnepasavoirdesignificationsuffisante pourtreraliss. Cettemthodedessainepermettraengnralpasdetirerdesconc
40、lusionsconcernantle classementrelatifvisvisdelarsistancelarcdesmatriauxpouvanttresoumis dautrestypesdarc. Leclassementdesmatriauxpeutdiffrerdeceluiquiattrouvpourlesessaidetenueen conditionshumides(parexempledanslaCEI60112,danslaCEI60587etdanslaCEI61302) etdeleursrsultatsenexploitation,pourlesquelsli
41、ntensit,lafrquencedapparitionetla duredesexpositionsauxdchargeslarcsonttrsdiffrentes. 2Rfrences normatives Lesdocumentsnormatifssuivantscontiennentdesdispositionsqui,parsuitedelarfrence quiyestfaite,constituentdesdispositionsvalablespourlaprsenteNormeinternationale.Au momentdelapublication,lesdition
42、sindiquestaientenvigueur.Toutedocumentnormatif estsujetrvisionetlespartiesprenantesauxaccordsfondssurlaprsenteNorme internationalesontinvitesrechercherlapossibilitdappliquerlesditionslesplusrcentes desdocumentsnormatifsindiqusciaprs.LesmembresdelaCEIetdelISOpossdentle registredesNormesinternationalesenvigueur. CEI60112:1979,Mthodepourdterminerlesindicesdersistanceetdetenue
