Electrical insulation - Thermal evaluation and designation

IEC 60085:2007 now distinguishes between thermal classes for electrical insulation systems and electrical insulating materials. It establishes the criteria for evaluating the thermal endurance of either electrical insulating materials (EIM) or electrical insulation systems (EIS). It also establishes the procedure for assigning thermal classes. This standard is applicable where the thermal factor is the dominant ageing factor. The major technical changes with regard to the previous edition concern the fact that this edition is an amalgamation of the third edition of this standard together with IEC 62114:2001. It has the status of a horizontal standard in accordance with IEC Guide 108.

Elektrische Isolierung - Thermische Bewertung und Bezeichnung

Isolation électrique - Evaluation et désignation thermiques

La CEI 60085:2007 fait à présent la distinction entre les classes thermiques pour systèmes d'isolation électrique et matériaux isolants électriques. Elle établit les critères d'évaluation de l'endurance thermique des matériaux isolants électriques (EIM, electrical insulating materials) ou des systèmes d'isolation électrique (EIS, electrical insulation systems). Elle établit également la procédure d'attribution des classes thermiques. Cette norme s'applique lorsque le facteur thermique est le facteur de vieillissement prépondérant. Les modifications techniques majeures par rapport à l'édition précédente concernent le fait que la présente édition est une fusion entre la troisième édition de cette norme et la CEI 62114:2001. Elle a le statut d'une norme horizontale conformément au Guide 108 de la CEI.

Ocenjevanje toplotnih lastnosti in označevanje električne izolacije (IEC 60085:2007)

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SIST EN 60085:2008
SIST EN 60085:2005
SIST EN 62114:2002

Electrical insulation - Thermal evaluation and designation
Elektrische Isolierung - Thermische Bewertung und Bezeichnung
Isolation électrique - Evaluation et désignation thermiques
Ta slovenski standard je istoveten z: EN 60085:2008
29.080.30 Izolacijski sistemi Insulation systems
SIST EN 60085:2008 en,fr
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 60085:2008

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SIST EN 60085:2008

EN 60085

January 2008

ICS 29.035.01; 17.220.99 Supersedes EN 60085:2004 and EN 62114:2001

English version

Electrical insulation -
Thermal evaluation and designation
(IEC 60085:2007)

Isolation électrique -  Elektrische Isolierung -
Evaluation et désignation thermiques Thermische Bewertung und Bezeichnung
(CEI 60085:2007) (IEC 60085:2007)

This European Standard was approved by CENELEC on 2007-12-01. 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.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Central Secretariat: rue de Stassart 35, B - 1050 Brussels

© 2008 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 60085:2008 E

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SIST EN 60085:2008
EN 60085:2008 - 2 -
The text of document 112/74/FDIS, future edition 4 of IEC 60085, 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 60085 on 2007-12-01.
This European Standard supersedes EN 60085:2004 and EN 62114:2001.
The major technical changes with regard to EN 60085:2004 concern the fact that EN 60085:2008 is an
amalgamation of EN 60085:2004 together with EN 62114:2001.
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) 2008-09-01
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2010-12-01
Annex ZA has been added by CENELEC.
Endorsement notice
The text of the International Standard IEC 60085:2007 was approved by CENELEC as a European
Standard without any modification.
In the official version, for Bibliography, the following note has to be added for the standard indicated:
IEC 60216-6 NOTE  Harmonized as EN 60216-6:2006 (not modified).

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SIST EN 60085:2008
- 3 - EN 60085:2008
Annex ZA

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

Publication Year Title EN/HD Year

1) 2)
IEC 60216-1 - Electrical insulating materials - Properties of EN 60216-1 2001
thermal endurance -
Part 1: Ageing procedures and evaluation of
test results

1) 2)
IEC 60216-5 - Electrical insulating materials - Thermal EN 60216-5 2003
endurance properties -
Part 5: Determination of relative thermal
endurance index (RTE) of an insulating

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