Non-impregnated densified laminated wood for electrical purposes - Part 3: Specifications for individual materials - Sheet 2: Rings produced from beech veneer

Specifies the requirements for individual types of rings of non-impregnated densified laminated wood produced from beech veneer defined in EN 61061-1.

Nicht-imprägniertes Kunstharzpressholz für elektrotechnische Zwecke - Teil 3: Anforderungen für einzelne Werkstoffe - Blatt 2: Ringe aus Rotbuchenfurnieren

Stratifiés de bois densifié, non imprégnés, à usages électriques - Partie 3: Spécifications pour matériaux particuliers - Feuille 2: Anneaux réalisés à partir de placages de hêtre

Spécifie les exigences pour les types particuliers d'anneaux en stratifiés de bois densifiés, non imprégnés, réalisés à partir des placages de hêtre définis dans la EN 61061-1.

Non-impregnated densified laminated wood for electrical purposes - Part 3: Specifications for individual materials - Sheet 2: Rings produced from beech veneer (IEC 61061-3-2:2001)

General Information

Status
Published
Publication Date
04-Oct-2001
Withdrawal Date
31-Aug-2004
Drafting Committee
IEC/TC 15 - IEC_TC_15
Parallel Committee
IEC/SC 15C - IEC_SC_15C
Current Stage
6060 - Document made available - Publishing
Start Date
05-Oct-2001
Completion Date
05-Oct-2001

Overview

EN 61061-3-2:2001 (adoption of IEC 61061-3-2:2001) specifies requirements for rings produced from beech veneer of non‑impregnated densified laminated wood used for electrical purposes. It is one sheet of the IEC 61061 series covering material specifications, dimensional tolerances and performance criteria that ensure these beech‑veneer rings are suitable as insulating components in electrical equipment. The standard is published by CENELEC/CLC and references test methods in IEC 61061-2 and IEC 60243-1.

Key topics and requirements

The standard sets measurable, normative requirements for rings produced from beech veneer, including:

  • Dimensional requirements and tolerances

    • Nominal thickness tolerances for un‑machined and machined rings (see separate tables for ranges, e.g. ±1.4 mm for ≤10 mm un‑machined).
    • Nominal diameter tolerances by diameter band (e.g. ±1.0 mm for >250–≤500 mm).
    • Flatness limits determined with a lightweight straight‑edge over 500 mm and 1 000 mm spans.
  • Mechanical properties

    • Flexural strength perpendicular to laminations (different minima for types T2R/T4R and for ring diameter >1 000 mm or ≤1 000 mm).
    • Apparent modulus of elasticity (GPa) perpendicular to laminations.
    • Impact strength, shearing strength of glue line bond, and compressibility including proof pressure and recovery.
  • Electrical properties

    • Electric strength perpendicular to the laminations (kV/mm) - test specimen reductions per IEC 60243-1.
    • Breakdown voltage parallel to laminations (kV).
  • Material and conditioning parameters

    • Apparent density ranges (e.g. 0.9–1.1 g/cm³ for T2R; 1.2–1.3 g/cm³ for T4R).
    • Moisture content (max 8%), shrinkage after drying, oil absorption, contamination limits for liquid dielectrics, and allowable changes in dissipation factor.
  • Test references and measurement notes

    • Test methods referenced to IEC 61061-2; electrical tests reference IEC 60243-1.
    • Diameter may be determined via circumference measured with a steel tape (0.5 mm divisions).

Applications and users

Who uses EN 61061-3-2:

  • Manufacturers of insulating rings and laminated wood components for electrical apparatus.
  • Design and R&D engineers specifying insulating materials for electrical equipment.
  • Test laboratories and QA/inspection teams performing acceptance testing and compliance checks.
  • Procurement and standards officers ensuring suppliers meet CENELEC/IEC material specifications.

Practical value: the standard provides clear acceptance criteria and test references so beech‑veneer rings reliably meet mechanical, electrical and dimensional performance needed for safe and consistent electrical insulation components.

Related standards

  • IEC 61061-1 - Definitions, designation and general requirements (Part 1)
  • IEC 61061-2 - Methods of test (Part 2)
  • IEC 60243-1 - Electrical strength of insulating materials - Tests at power frequencies

Keywords: EN 61061-3-2, IEC 61061-3-2, beech veneer rings, non‑impregnated densified laminated wood, electrical insulation, CENELEC, test methods, dimensional tolerances.

Frequently Asked Questions

EN 61061-3-2:2001 is a standard published by CLC. Its full title is "Non-impregnated densified laminated wood for electrical purposes - Part 3: Specifications for individual materials - Sheet 2: Rings produced from beech veneer". This standard covers: Specifies the requirements for individual types of rings of non-impregnated densified laminated wood produced from beech veneer defined in EN 61061-1.

Specifies the requirements for individual types of rings of non-impregnated densified laminated wood produced from beech veneer defined in EN 61061-1.

EN 61061-3-2:2001 is classified under the following ICS (International Classification for Standards) categories: 17.220.99 - Other standards related to electricity and magnetism; 29.035.01 - Insulating materials in general. The ICS classification helps identify the subject area and facilitates finding related standards.

You can purchase EN 61061-3-2:2001 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of CLC standards.

Standards Content (Sample)


SLOVENSKI SIST EN 61061-3-2:2002
prva izdaja
STANDARD
oktober 2002
Non-impregnated densified laminated wood for electrical purposes - Part 3:
Specifications for individual materials - Sheet 2: Rings produced from beech veneer
(IEC 61061-3-2:2001)
ICS 29.035.99 Referenčna številka
©  Standard je založil in izdal Slovenski inštitut za standardizacijo. Razmnoževanje ali kopiranje celote ali delov tega dokumenta ni dovoljeno

EUROPEAN STANDARD EN 61061-3-2
NORME EUROPÉENNE
EUROPÄISCHE NORM October 2001
ICS 17.220.99; 29.035.01
English version
Non-impregnated densified laminated wood for electrical purposes
Part 3: Specifications for individual materials
Sheet 2: Rings produced from beech veneer
(IEC 61061-3-2:2001)
Stratifiés de bois densifié, non imprégnés, Nicht-imprägniertes Kunstharzpressholz
à usages électriques für elektrotechnische Zwecke
Partie 3: Spécifications pour matériaux Teil 3: Anforderungen für einzelne
particuliers Werkstoffe
Feuille 2: Anneaux réalisés à partir de Blatt 2: Ringe aus Rotbuchenfurnieren
placages de hêtre (IEC 61061-3-2:2001)
(CEI 61061-3-2:2001)
This European Standard was approved by CENELEC on 2001-09-01. 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, Czech Republic,
Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands,
Norway, Portugal, Spain, Sweden, Switzerland and 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
© 2001 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 61061-3-2:2001 E
Foreword
The text of document 15C/1223/FDIS, future edition 1 of IEC 61061-3-2, prepared by SC 15C,
Specifications, of IEC TC 15, Insulating materials, was submitted to the IEC-CENELEC parallel vote
and was approved by CENELEC as EN 61061-3-2 on 2001-09-01.
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) 2002-06-01
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2004-09-01
Annexes designated "normative" are part of the body of the standard.
In this standard, annex ZA is normative.
Annex ZA has been added by CENELEC.
__________
Endorsement notice
The text of the International Standard IEC 61061-3-2:2001 was approved by CENELEC as a
European Standard without any modification.
__________
- 3 - EN 61061-3-2:2001
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
This European Standard incorporates by dated or undated reference, provisions from other
publications. These normative references are cited at the appropriate places in the text and the
publications are listed hereafter. For dated references, subsequent amendments to or revisions of any
of these publications apply to this European Standard only when incorporated in it by amendment or
revision. For undated references the latest edition of the publication referred to applies (including
amendments).
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 60243-1 1998 Electrical strength of insulating EN 60243-1 1998
materials - Test methods
Part 1: Tests at power frequencies
1) 2)
IEC 61061-1 Non-impregnated densified laminated EN 61061-1 1998
wood for electrical purposes
Part 1: Definitions, designation and
general requirements
1) 2)
IEC 61061-2 Part 2: Methods of test EN 61061-2 2001

1)
undated reference.
2)
valid edition at date of issue.

NORME CEI
INTERNATIONALE IEC
61061-3-2
INTERNATIONAL
Première édition
STANDARD
First edition
2001-07
Stratifiés de bois densifié, non imprégnés,
à usages électriques –
Partie 3:
Spécifications pour matériaux particuliers –
Feuille 2: Anneaux réalisés à partir
de placages de hêtre
Non-impregnated densified laminated wood
for electrical purposes –
Part 3:
Specifications for individual materials –
Sheet 2: Rings produced from beech veneer
 IEC 2001 Droits de reproduction réservés  Copyright - all rights reserved
Aucune partie de cette publication ne peut être reproduite ni No part of this publication may be reproduced or utilized in
utilisée sous quelque forme que ce soit et par aucun procédé, any form or by any means, electronic or mechanical,
électronique ou mécanique, y compris la photocopie et les including photocopying and microfilm, without permission in
microfilms, sans l'accord écrit de l'éditeur. writing from the publisher.
International Electrotechnical Commission 3, rue de Varembé Geneva, Switzerland
Telefax: +41 22 919 0300 e-mail: inmail@iec.ch IEC web site http://www.iec.ch
CODE PRIX
Commission Electrotechnique Internationale
F
PRICE CODE
International Electrotechnical Commission
Pour prix, voir catalogue en vigueur
For price, see current catalogue

61061-3-2  IEC:2001 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
___________
NON-IMPREGNATED DENSIFIED LAMINATED WOOD
FOR ELECTRICAL PURPOSES –
Part 3: Specifications for individual materials –
Sheet 2: Rings produced from beech veneer
FOREWORD
1) The IEC (International Electrotechnical Commission) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of the 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, the IEC publishes International Standards. 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
...

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