EN 61857-21:2009

Electrical insulation systems - Procedures for thermal evaluation - Part 21: Specific requirements for general-purpose models - Wire-wound applications

IEC 61857-21:2009 describes a general-purpose model (GPM) and a tall channel alternative model (GPM-TC) which can be used for the evaluation of wire-wound electrical insulation systems (EIS) where specific electrotechnical products are not available or required. The third edition cancels and replaces the second edition published in 2004, and constitutes editorial revisions to make this standard compatible with Parts 1 and 22.

Elektrische Isoliersysteme - Verfahren zur thermischen Bewertung - Teil 21: Spezielle Bedingungen für Mehrzweckmodelle - Anwendungen bei Drahtwicklungen

Systèmes d'isolation électrique - Procédures d'évaluation thermique - Partie 21: Exigences particulières pour les modèles d'usage général - Applications aux enroulements à fil

La CEI 61857-21:2009 décrit un modèle d'usage général (GPM) et un modèle alternatif à chemin haut (GPM-TC) qui peuvent être utilisés pour évaluer les systèmes d'isolation électrique (SIE) à enroulements à fil lorsque les produits électrotechniques spécifiques ne sont pas disponibles ou pas requis. Cette troisième édition annule et remplace la seconde édition publiée en 2004, et elle constitue une révision rédactionnelle pour rendre la présente norme compatible avec les Parties 1 et 22.

Sistemi električne izolacije - Postopki za toplotno vrednotenje - 21. del: Posebne zahteve za modele za splošno/večnamensko uporabo - Uporaba pri žičnih navitjih (IEC 61857-21:2009)

General Information

• Status: Published
• Publication Date: 09-Jul-2009
• Withdrawal Date: 31-May-2012
• ICS: 29.080.30 - Insulation systems
• Technical Committee: CLC/SR 112 - Evaluation and qualification of electrical insulating materials and systems (to be defined)
• Drafting Committee: IEC/TC 112 - IEC_TC_112
• Parallel Committee: IEC/TC 112 - IEC_TC_112
• Current Stage: 6060 - Document made available - Publishing
• Start Date: 10-Jul-2009
• Completion Date: 10-Jul-2009
• Ref Project: SIST EN 61857-21:2009 - Electrical insulation systems - Procedures for thermal evaluation - Part 21: Specific requirements for general-purpose models - Wire-wound applications (IEC 61857-21:2009)

Relations

• Replaces: EN 61857-21:2004 - Electrical insulation systems - Procedures for thermal evaluation - Part 21: Specific requirements for general-purpose models - Wire-wound applications
• Effective Date: 29-Jan-2023

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Elektrische Isoliersysteme -
Verfahren zur thermischen Bewertung -
Teil 21: Spezielle Bedingungen für Mehrzweckmodelle -
Anwendungen bei Drahtwicklungen (IEC 61857-21:2009)Systèmes d'isolation électriques - Procédures d'évaluation thermique - Partie 21: Exigences particulières pour les modèles d'usage général - Applications aux (CEI 61857-21:2009)enroulements à filElectrical insulation systems - Procedures for thermal evaluation - Part 21: Specific requirements for general-purpose models - Wire-wound applications (IEC 61857-21:2009)29.080.30Izolacijski sistemiInsulation systemsICS:Ta slovenski standard je istoveten z:EN 61857-21:2009SIST EN 61857-21:2009en01-september-2009SIST EN 61857-21:2009SLOVENSKI
STANDARDSIST EN 61857-21:20051DGRPHãþD



SIST EN 61857-21:2009



EUROPEAN STANDARD EN 61857-21 NORME EUROPÉENNE
EUROPÄISCHE NORM July 2009
CENELEC European Committee for Electrotechnical Standardization Comité Européen de Normalisation Electrotechnique Europäisches Komitee für Elektrotechnische Normung
Central Secretariat: Avenue Marnix 17, B - 1000 Brussels
© 2009 CENELEC -
All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 61857-21:2009 E
ICS 29.080.30 Supersedes EN 61857-21:2004
English version
Electrical insulation systems -
Procedures for thermal evaluation -
Part 21: Specific requirements for general-purpose models -
Wire-wound applications (IEC 61857-21:2009)
Systèmes d'isolation électrique -
Procédures d'évaluation thermique -
Partie 21: Exigences particulières
pour les modèles d'usage général -
Applications aux enroulements à fil (CEI 61857-21:2009)
Elektrische Isoliersysteme -
Verfahren zur thermischen Bewertung -
Teil 21: Spezielle Bedingungen
für Mehrzweckmodelle -
Anwendungen bei Drahtwicklungen (IEC 61857-21:2009)
This European Standard was approved by CENELEC on 2009-06-01. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CENELEC member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CENELEC member into its own language and notified to the Central Secretariat has the same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom.
SIST EN 61857-21:2009



EN 61857-21:2009 - 2 -
Foreword The text of document 112/120/FDIS, future edition 3 of IEC 61857-21, prepared by IEC TC 112, Evaluation and qualification of electrical insulating materials and systems, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 61857-21 on 2009-06-01. This European Standard supersedes EN 61857-21:2004. The editorial revisions make EN 61857-21:2009 compatible with Parts 1 and 22. The following dates were fixed: – latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement
(dop)
2010-03-01 – latest date by which the national standards conflicting
with the EN have to be withdrawn
(dow)
2012-06-01 Annex ZA has been added by CENELEC. __________ Endorsement notice The text of the International Standard IEC 61857-21:2009 was approved by CENELEC as a European Standard without any modification. __________
SIST EN 61857-21:2009



- 3 - EN 61857-21:2009 Annex ZA(normative)
Normative references to international publications with their corresponding European publications
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
NOTE
When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD applies.
Publication Year Title EN/HD Year
IEC 60455 Series Resin based reactive compounds used for electrical insulation EN 60455 Series
IEC 60464 Series Varnishes used for electrical insulationEN 60464 Series
IEC 60505 -1) Evaluation and qualification of electrical insulation systems EN 60505 20042)
IEC 61857-1 2008 Electrical insulation systems - Procedures for thermal evaluation -
Part 1: General requirements - Low-voltage EN 61857-1 2009
1) Undated reference. 2) Valid edition at da
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