SIST EN 60626-2:2010

Combined flexible materials for electrical insulation - Part 2: Methods of test (IEC 60626-2:2009)

Deals with the tests applicable to combined materials constituted by plastic films and/or fibrous materials such as papers, woven or non-woven fabrics, impregnated or not impregnated

Flexible Mehrschichtisolierstoffe zur elektrischen Isolation - Teil 2: Prüfverfahren (IEC 60626-2:2009)

Matériaux combinés souples destinés à l'isolement électrique - Partie 2: Méthodes d'essai (CEI 60626-2:2009)

Traite des essais applicables aux matériaux combinés constitués par des films de matière plastique et pour des matériaux fibreux tels que les papiers, les lissés et les non-lissés, imprégnés ou non.

Sestavljeni gibki materiali za električno izolacijo - 2. del: Preskusne metode (IEC 60626-2:2009)

Ta mednarodni standard zagotavlja preskusne metode za sestavljene gibke materiale za električno izolacijo. Potrjene so bile nekatere lastnosti in ustrezne preskusne metode v skladu z zahtevami za zmogljivosti IEC 60626-3. Druge preskusne metode so opisane kot dodatek vodilu za nadaljnjo specifikacijo, o kateri se lahko dogovorita stranka in dobavitelj, da ustreza posebnim potrebam za končno uporabo. Materiali, skladni s to specifikacijo, ustrezajo vzpostavljenim ravnem delovanja. Vendar mora uporabnik material za določeno uporabo izbrati na podlagi dejanskih zahtev za ustrezno delovanje pri takšni uporabi in ne le na podlagi same specifikacije. VARNOSTNO OPOZORILO: Uporabnik je odgovoren, da se metode, ki so opisane v tem dokumentu ali na katere se dokument sklicuje, uporabljajo na varen način.

General Information

• Status: Published
• Publication Date: 23-Dec-2009
• ICS: 29.035.01 - Insulating materials in general
• Technical Committee: IIZS - Insulating materials and systems
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 09-Dec-2009
• Due Date: 13-Feb-2010
• Completion Date: 24-Dec-2009
• Ref Project: EN 60626-2:2009 - Combined flexible materials for electrical insulation - Part 2: Methods of test

Relations

• Replaces: SIST EN 60626-2:1998 - Combined flexible materials for electrical insulation -- Part 2: Methods of test
• Effective Date: 01-Feb-2010
• Revised: SIST EN 60626-2:1998 - Combined flexible materials for electrical insulation -- Part 2: Methods of test
• Effective Date: 08-Oct-2012

Overview

EN 60626-2:2009 (IEC 60626-2:2009) - Combined flexible materials for electrical insulation - Part 2: Methods of test - defines standardized test methods for combined flexible insulating materials made from plastic films and/or fibrous materials (papers, woven or non‑woven fabrics, impregnated or not). It is the Part 2 test methods companion to Part 1 (definitions) and Part 3 (material specifications). The standard was adopted by CENELEC and provides reproducible procedures used by manufacturers and test laboratories to verify performance.

Key topics and technical requirements

• Scope: Test methods for laminates and multi‑layer flexible insulating materials (excluding mica‑paper‑based primary materials covered by IEC 60371).
• Conditioning: Specimens are typically conditioned for 24 h at (23 ± 2) °C and (50 ± 5) % RH before testing.
• Thickness measurement: Use of calibrated micrometers (measuring faces 6–8 mm) with measuring pressure specified (100 kPa); thickness taken from nine measured points and the central value reported.
• Substance (grammage): Mass per unit area measured in accordance with ISO 536, with adaptations (three specimens; central value reported).
• Tensile strength & elongation: Tests use five specimens (machine and transverse directions), specified jaw separation (200 mm), defined loading rate, and procedures for folded specimens and delamination checks; results report central values.
• Heat effect (thermal ageing): Specimens exposed to agreed temperature for a defined period (example: ~10 min in extract - full method in standard); ovens conforming to IEC 60216‑4‑1 recommended in disputes.
• General rules: Exclusion of joints/splices from measurement areas, treatment of failed/clamped specimens, and reporting conventions (central values).
• Edition changes: Third edition removed some unused tests (e.g., edge tearing, stiffness) present in earlier editions.

Applications

• Verifying performance of insulating laminates used in transformers, motors, capacitors, and other electrical equipment.
• Incoming inspection and quality control for manufacturers of insulating tapes, films and composite sheets.
• Acceptance testing between suppliers and purchasers for material specification compliance.
• R&D and qualification testing when developing new combined insulating materials.

Who should use this standard

• Material and component manufacturers
• Independent testing laboratories
• Design engineers and specifiers for electrical equipment
• Procurement and quality assurance teams
• Regulatory and conformity assessment bodies

Related standards

• EN/IEC 60626-1 - Definitions and general requirements
• EN/IEC 60626-3 - Specifications for individual materials
• IEC 60216-4-1 - Thermal endurance (ageing ovens)
• IEC 60243-1 - Electrical strength (power-frequency tests)
• ISO 536 - Paper and board grammage

Keywords: EN 60626-2:2009, IEC 60626-2, combined flexible materials, electrical insulation, methods of test, thickness measurement, grammage, tensile strength, insulating laminates.

Standards Content (Sample)

SLOVENSKI STANDARD
01-februar-2010
1DGRPHãþD
SIST EN 60626-2:1998
6HVWDYOMHQLJLENLPDWHULDOL]DHOHNWULþQRL]RODFLMRGHO3UHVNXVQHPHWRGH,(&

Combined flexible materials for electrical insulation - Part 2: Methods of test (IEC 60626-
2:2009)
Flexible Mehrschichtisolierstoffe zur elektrischen Isolation - Teil 2: Prüfverfahren (IEC
60626-2:2009)
Matériaux combinés souples destinés à l'isolement électrique - Partie 2: Méthodes
d'essai (CEI 60626-2:2009)
Ta slovenski standard je istoveten z: EN 60626-2:2009
ICS:
29.035.01 Izolacijski materiali na Insulating materials in
splošno general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 60626-2
NORME EUROPÉENNE
December 2009
EUROPÄISCHE NORM
ICS 17.220.99; 29.035.01 Supersedes EN 60626-2:1995

English version
Combined flexible materials for electrical insulation -
Part 2: Methods of test
(IEC 60626-2:2009)
Matériaux combinés souples  Flexible Mehrschichtisolierstoffe
destinés à l'isolement électrique - zur elektrischen Isolierung -
Partie 2: Méthodes d'essai Teil 2: Prüfverfahren
(CEI 60626-2:2009) (IEC 60626-2:2009)

This European Standard was approved by CENELEC on 2009-10-01. 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.

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 60626-2:2009 E
Foreword
The text of document 15/470/CDV, future edition 3 of IEC 60626-2, prepared by IEC TC 15, Solid
electrical insulating materials, was submitted to the IEC-CENELEC parallel vote and was approved by
CENELEC as EN 60626-2 on 2009-10-01.
This European Standard supersedes EN 60626-2:1995.
The main changes from EN 60626-2:1995 are as follows: some tests such as for edge tearing and
stiffness, actually not used and not listed in the requirements of Part 3, were deleted.
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) 2010-07-01
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2012-10-01
Annex ZA has been added by CENELEC.
__________
Endorsement notice
The text of the International Standard IEC 60626-2:2009 was approved by CENELEC as a European
Standard without any modification.
__________
- 3 - EN 60626-2:2009
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 60216-4-1 2006 Electrical insulating materials - Thermal EN 60216-4-1 2006
endurance properties -
Part 4-1: Ageing ovens - Single-chamber
ovens
IEC 60243-1 1998 Electrical strength of insulating materials - EN 60243-1 1998
Test methods -
Part 1: Tests at power frequencies

IEC 60626-3 2008 Combined flexible materials for electrical EN 60626-3 2008
insulation - + corr. October 2008
Part 3: Specifications for individual materials

ISO 536 1995 Paper and board - Determination of - -
grammage
IEC 60626-2 ®
Edition 3.0 2009-09
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Combined flexible materials for electrical insulation –
Part 2: Methods of test
Matériaux combinés souples destinés à l'isolement électrique –
Partie 2: Méthodes d'essai
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
K
CODE PRIX
ICS 17.220.99; 29.035.01 ISBN 2-8318-1063-8
– 2 – 60626-2 © IEC:2009
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
COMBINED FLEXIBLE MATERIALS
FOR ELECTRICAL INSULATION –
Part 2: Methods of test
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 participate in this preparation. IEC collaborates closely
with the International Organization for Standardization (ISO) in accordance with conditions determined by
agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence
between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
the latter.
5) IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with an IEC Publication.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 60626-2 has been prepared by IEC technical committee 15: Solid
electrical insulating materials.
This third edition cancels and replaces the second edition published in 1995 and constitutes a
major technical revision. The main changes from the previous edition are as follows: some
tests such as for edge tearing and stiffness, actually not used and not listed in the
requirements of Part 3, were deleted.

60626-2 © IEC:2009 – 3 –
The text of this standard is based on the following documents:
CDV Report on voting
15/470/CDV 15/512/RVC
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
A list of all the parts in the IEC 60626 series, under the general title Combined flexible
materials for electrical insulation, can be found on the IEC website.
The committee has decided that the contents of this publication will remain unchanged until
the maintenance result date indicated on the IEC web site under "http://webstore.iec.ch" in
the data related to the specific publication. At this date, the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
– 4 – 60626-2 © IEC:2009
INTRODUCTION
This International standard deals with test methods of combined flexible materials consisting
of two or more different insulating materials laminated together as described in IEC 60626-1.
The components of flexible combined materials are polymer film and fibrous sheet material.
This standard does not include materials based on mica paper, as primary component,
covered by IEC 60371, but mica paper may be used as complementary material.
The series has three parts describing:
Part 1: Definitions and general requirements (IEC 60626-1)
Part 2: Methods of test (IEC 60626-2)
Part 3: Specifications for individual materials (IEC 60626-3)

60626-2 © IEC:2009 – 5 –
COMBINED FLEXIBLE MATERIALS
FOR ELECTRICAL INSULATION –
Part 2: Methods of test
1 Scope
This Internationa
...