EN 60893-3-7:2004/A1:2009

• Status: Published
• Publication Date: 14-Dec-2009
• Withdrawal Date: 30-Sep-2012
• ICS: 29.035.01 - Insulating materials in general
• Technical Committee: CLC/SR 15 - Insulating materials
• Drafting Committee: IEC/TC 15 - IEC_TC_15
• Parallel Committee: IEC/TC 15 - IEC_TC_15
• Current Stage: 6060 - Document made available - Publishing
• Start Date: 15-Dec-2009
• Completion Date: 25-Aug-2026
• Ref Project: SIST EN 60893-3-7:2004/A1:2010 - Insulating materials - Industrial rigid laminated sheets based on thermosetting resins for electrical purposes - Part 3-7: Specifications for individual materials - Requirements for rigid laminated sheets based on polyimide resins (IEC 60893-3-7:2003/A1:2009)

• Referred By: EN IEC 60893-2:2023 - Insulating materials - Industrial rigid laminated sheets based on thermosetting resins for electrical purposes - Part 2: Methods of test
• Effective Date: 03-Feb-2026
• Amends: EN 60893-3-7:2004 - Insulating materials - Industrial rigid laminated sheets based on thermosetting resins for electrical purposes - Part 3-7: Specifications for individual materials - Requirements for rigid laminated sheets based on polyimide resins
• Effective Date: 28-Jan-2023

Overview

EN 60893-3-7:2004/A1:2009 (CLC adoption of IEC 60893-3-7:2003/A1:2009) specifies requirements for industrial rigid laminated sheets based on polyimide resins used as electrical insulating materials. This amendment (A1, 2009) updates the original part 3-7 by revising mechanical impact strength limits based on round‑robin test results. The standard is part of the IEC/EN 60893 series that defines materials, test methods and property limits for thermosetting laminated insulating sheets.

Key Topics

• Material scope: Rigid laminated sheets manufactured from polyimide thermosetting resins for electrical applications.
• Mechanical requirements: Includes flexural strength and impact strength (Charpy or Izod). Amendment A1 revises the Charpy/Izod impact strength limits to reflect inter‑laboratory findings.
• Electrical properties: Specifies electric strength (tests at 90 °C in oil) both perpendicular and parallel to laminations and breakdown voltage requirements.
• Insulation and ageing: Insulation resistance after immersion in water and other conditioning tests are defined to verify long‑term performance.
• Safety and fire behavior: Small‑scale flammability classification (category HB) is used primarily for production consistency; results are not a complete indicator of fire hazard in end use.
• Moisture uptake: Water absorption limits and test references (see Table 7 in the standard) to control dimensional and electrical stability.
• Referenced test methods: Cross‑references to IEC/EN test procedures (for example IEC 60893‑2) for measuring the listed properties.

Applications

This standard is essential for anyone specifying, manufacturing, testing or procuring polyimide‑based rigid laminates for electrical equipment where high thermal stability and reliable insulation are required. Typical applications include:

• High‑temperature electrical insulation components in motors, generators and switchgear
• Insulating supports, spacers and structural parts in electrical assemblies
• Specialist printed circuit substrates and interlayer insulation where polyimide’s thermal and electrical properties are required Users include material manufacturers, test laboratories, design engineers, procurement teams and conformity/quality managers.

Related Standards

• IEC/EN 60893 series (other parts define test methods and requirements for different resin systems)
• IEC 60893-2 (referenced test methods for measurement and conditioning)
• National adoptions and CENELEC implementation documents for harmonized use across Europe

Keywords: EN 60893-3-7 polyimide, rigid laminated sheets, insulating materials, IEC 60893-3-7, impact strength, electric strength, flammability HB, water absorption, electrical insulation standard.

SLOVENSKI STANDARD
01-februar-2010
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Insulating materials - Industrial rigid laminated sheets based on thermosetting resins for
electrical purposes - Part 3-7: Specifications for individual materials - Requirements for
rigid laminated sheets based on polyimide resins (IEC 60893-3-7:2003/A1:2009)
Isolierstoffe - Tafeln aus technischen Schichtpressstoffen auf der Basis warmhärtender
Harze für elektrotechnische Zwecke - Teil 3-7: Bestimmungen für einzelne Werkstoffe -
Anforderungen für Tafeln aus Schichtpressstoffen auf der Basis von Polyimidharzen (IEC
60893-3-7:2003/A1:2009)
Matériaux isolants - Stratifiés industriels rigides en planches à base de résines
thermodurcissables à usages électriques - Partie 3-7: Spécifications pour matériaux
particuliers - Prescriptions pour stratifiés rigides en planches à base de résine polyimide
(IEC 60893-3-7:2003/A1:2009)
Ta slovenski standard je istoveten z: EN 60893-3-7:2004/A1:2009
ICS:
29.035.20 3ODVWLþQLLQJXPHQLL]RODFLMVNL Plastics and rubber insulating
PDWHULDOL materials
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 60893-3-7/A1
NORME EUROPÉENNE
December 2009
EUROPÄISCHE NORM
ICS 29.035.01
English version
Insulating materials -
Industrial rigid laminated sheets based on thermosetting resins
for electrical purposes -
Part 3-7: Specifications for individual materials -
Requirements for rigid laminated sheets based on polyimide resins
(IEC 60893-3-7:2003/A1:2009)
Matériaux isolants -  Isolierstoffe -
Stratifiés industriels rigides en planches Tafeln aus technischen
à base de résines thermodurcissables Schichtpressstoffen auf der Basis
à usages électriques - warmhärtender Harze
Partie 3-7: Spécifications pour matériaux für elektrotechnische Zwecke -
particuliers - Teil 3-7: Bestimmungen für einzelne
Prescriptions pour stratifiés rigides Werkstoffe -
en planches à base de résine polyimide Anforderungen für Tafeln
(CEI 60893-3-7:2003/A1:2009) aus Schichtpressstoffen auf der Basis von
Polyimidharzen
(IEC 60893-3-7:2003/A1:2009)
This amendment A1 modifies the European Standard EN 60893-3-7:2004; it 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 amendment 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 amendment 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 60893-3-7:2004/A1:2009 E

Foreword
The text of document 15/493/CDV, future amendment 1 to IEC 60893-3-7:2003, prepared
...