EN 60464-2:2001/A1:2006

Varnishes used for electrical insulation - Part 2: Methods of test

Corrigendum to EN issued December 2006

Elektroisolierlacke - Teil 2: Prüfverfahren

Vernis utilisés pour l'isolation électrique - Partie 2: Méthodes d'essai

Prevleke za električno izolacijo – 2. del: Preskusne metode (IEC 60464-2:2001/A1:2006)

General Information

• Status: Published
• Publication Date: 13-Mar-2006
• Withdrawal Date: 31-Jan-2009
• ICS: 17.220.99 - Other standards related to electricity and magnetism
• 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: 14-Mar-2006
• Completion Date: 14-Mar-2006
• Ref Project: SIST EN 60464-2:2002/A1:2006 - Varnishes used for electrical insulation -- Part 2: Methods of test

Relations

• Amends: EN 60464-2:2001 - Varnishes used for electrical insulation - Part 2: Methods of test
• Effective Date: 29-Jan-2023

Overview

EN 60464-2:2001/A1:2006 is the CENELEC amendment (A1) to the European adoption of IEC 60464-2:2001, titled Varnishes used for electrical insulation - Part 2: Methods of test. Approved 2006-02-01 and issued as a corrigendum in December 2006, this document updates the test methods for water- and emulsion-based varnishes (Type W/Type E) and incorporates additional normative references. The amendment clarifies procedures for pH measurement, volatile organic compound (VOC) content, water content and flash-rusting behavior following curing.

Key topics and technical requirements

• Scope: Test methods for varnishes used as electrical insulation, with specific additions for water/emulsion-based systems.
• pH measurement (5.9):
  • Equipment: laboratory pH meter, buffers covering varnish pH range (±0.5), thermometer, demineralized water.
  • Procedure: measurements at 23 °C ± 2 K; calibration at buffer values; electrode washing between tests; repeated measurements must agree within 0.1 pH.
  • Result: mean of the final pair of measurements.
• Flash rusting on steel (6.6):
  • Steel panels coated per the standard are examined immediately after curing/drying for rust or discoloration; result reported as “present” or “absent.”
• VOC content (6.7):
  • Methods referenced: ISO 11890-1 and ISO 11890-2 - choice depends on whether VOC content is greater than or less than 15%.
• Water content (6.8):
  • Method referenced: ISO 760 (Karl Fischer) for determining water in varnish.

Practical applications

• Quality control of electrical insulating varnishes during formulation and production.
• Compliance testing for product specifications, regulatory reporting (VOC), and environmental claims.
• Material acceptance testing for motor windings, transformer varnishes, magnet wire coatings and other electrical insulation applications.
• Failure analysis where pH, residual water or flash rusting could affect electrical performance or long-term reliability.

Who uses this standard

• Varnish and resin manufacturers (R&D and QC teams)
• Independent testing laboratories and certification bodies
• Electrical component manufacturers (motors, transformers, coils)
• Procurement/specification engineers and regulatory compliance officers

Related standards

• IEC 60464-2:2001 (base international standard)
• ISO 760:1978 (Karl Fischer - water determination)
• ISO 11890-1:2000 and ISO 11890-2:2000 (VOC determination methods)

This amendment ensures harmonized, reproducible test methods for water- and emulsion-based electrical varnishes, supporting product safety, environmental compliance and consistent quality across the electrotechnical industry.

Standards Content (Sample)

SLOVENSKI SIST EN 60464-2:2002/A1:2006

STANDARD
julij 2006
Prevleke za električno izolacijo – 2. del: Preskusne metode (IEC 60464-
2:2001/A1:2006)
Varnishes used for electrical insulation – Part 2: Methods of test (IEC 60464-
2:2001/A1:2006)
ICS 29.035.60 Referenčna številka
©  Standard je založil in izdal Slovenski inštitut za standardizacijo. Razmnoževanje ali kopiranje celote ali delov tega dokumenta ni dovoljeno

EUROPEAN STANDARD
EN 60464-2/A1
NORME EUROPÉENNE
March 2006
EUROPÄISCHE NORM
ICS 17.220.99; 29.035.01
English version
Varnishes used for electrical insulation
Part 2: Methods of test
(IEC 60464-2:2001/A1:2006)
Vernis utilisés pour l'isolation électrique Elektroisolierlacke
Partie 2: Méthodes d'essai Teil 2: Prüfverfahren
(CEI 60464-2:2001/A1:2006) (IEC 60464-2:2001/A1:2006)

This amendment A1 modifies the European Standard EN 60464-2:2001; it was approved by CENELEC on
2006-02-01. 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, 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: rue de Stassart 35, B - 1050 Brussels

© 2006 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 60464-2:2001/A1:2006 E

Foreword
The text of document 15/253/FDIS, future amendment 1 to IEC 60464-2:2001, prepared by IEC TC 15,
Electrical insulating materials, was submitted to the IEC-CENELEC parallel vote and was approved by
CENELEC as amendment A1 to EN 60464-2:2001 on 2006-02-01.
The following dates were fixed:
– latest date by which the amendment has to be
implemented at national level by publication of
an identical national standard or by endorsement (dop) 2006-11-01
– latest date by which the national standards conflicting
with the amendment have to be withdrawn (dow) 2009-02-01
This European Standard makes reference to International Standards. Where the International Standard
referred to has been endorsed as a European Standard or a home-grown European Standard exists, this
European Standard shall be applied instead. Pertinent information can be found on the CENELEC web
site.
__________
Endorsement notice
The text of amendment 1:2006 to the International Standard IEC 60464-2:2001 was approved by
CENELEC as an amendment to the European Standard without any modification.
__________
INTERNATIONAL IEC
STANDARD 60464-2
AMENDMENT 1
2006-01
Amendment 1
Varnishe
...