EN 61629-2:1996

Aramid pressboard for electrical purposes - Part 2: Methods of test

Gives the methods of test applicable for the materials classified in IEC 61629-1.

Aramid-Tafelpreßspan für elektrotechnische Zwecke - Teil 2: Prüfverfahren

Carton comprimé aramide à usages électriques - Partie 2: Méthodes d'essai

Donne les méthodes d'essai applicables aux matériaux décrits dans la CEI 61629-1.

Aramid pressboard for electrical purposes - Part 2: Methods of test (IEC 61629-2:1996)

General Information

• Status: Published
• Publication Date: 09-Dec-1996
• Withdrawal Date: 30-Jun-1997
• ICS: 29.040.20 - Insulating gases
• Technical Committee: CLC/SR 15 - Insulating materials
• 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: 10-Dec-1996
• Completion Date: 10-Dec-1996
• Ref Project: SIST EN 61629-2:1998 - Aramid pressboard for electrical purposes -- Part 2: Methods of test

Overview

EN 61629-2:1996, titled Aramid Pressboard for Electrical Purposes - Part 2: Methods of Test, is an international standard published by the CLC (European Committee for Electrotechnical Standardization). This standard specifies the test methods applicable to aramid pressboard materials classified under IEC 61629-1. Aramid pressboard is an important insulating material used widely in electrical engineering due to its excellent mechanical strength and electrical insulation properties.

The scope of this standard focuses on ensuring consistent quality and performance verification of aramid pressboard used for electrical purposes through standardized testing procedures.

Key Topics

• Test Methods for Aramid Pressboard
  The standard outlines the specific procedures to assess the physical and electrical properties of aramid pressboards, essential for evaluating their suitability in electrical insulation applications.

• Material Conditioning
  Conditioning of test specimens is mandatory prior to testing to assure accuracy and repeatability. The standard references IEC 641-2 for conditioning requirements, with additional provisions for specific types of aramid pressboard such as APB-LD, APB, APB-C, and APB-HD.

• Thickness-Dependent Conditioning Time
  For APB-HD aramid pressboards, the conditioning duration varies depending on the nominal thickness, with longer conditioning times required for thicker specimens (e.g., 120 hours for ≤ 2.0 mm, up to 360 hours for > 5.0 mm). This ensures that testing results reflect real-world material performance.

• Normative References
  EN 61629-2 references other key standards including IEC 641-2 (Pressboard and presspaper for electrical purposes – Method of test) and IEC 61629-1 (Definitions, designations, and general requirements for aramid pressboard). These provide a comprehensive framework for understanding and applying the test methods.

Applications

EN 61629-2 is essential for manufacturers, testing laboratories, and quality control engineers involved in the production and validation of aramid pressboard electrical insulation materials. Typical applications include:

• Power Transformers
  Aramid pressboards are used as insulating barriers and structural supports within transformer windings, where reliable electrical and mechanical performance is critical.

• Electric Motors and Generators
  Ensuring adequate dielectric strength and thermal stability of the insulation under operating conditions prolongs equipment lifespan and reliability.

• High-Voltage Electrical Equipment
  Equipment exposed to elevated electrical stresses benefits from aramid pressboards tested according to these methods, reducing the risk of insulation failure.

Using EN 61629-2 helps stakeholders maintain high standards of electrical insulation reliability, safety, and compliance with international regulations.

Related Standards

• EN 61629-1:1996 – Aramid Pressboard for Electrical Purposes - Part 1: Definitions, Designations and General Requirements
  Defines material classifications and essential properties of aramid pressboard.

• IEC 641-2:1979 (Amendment 1, 1993) – Pressboard and Presspaper for Electrical Purposes - Part 2: Methods of Test
  Establishes applicable test procedures for electrical insulating paper and board materials, referenced extensively in EN 61629-2.

• EN 61629-3 – Specifications for Individual Aramid Pressboard Materials
  Provides detailed specifications for different grades or types of aramid pressboard relevant to particular electrical applications.

Adhering to these interconnected standards ensures comprehensive testing coverage and quality assurance for aramid pressboards used in the electrical industry.

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Keywords: EN 61629-2, aramid pressboard, electrical insulation, test methods, IEC 61629-1, conditioning, electrical insulating materials, pressboard testing, transformer insulation, high-voltage insulation standards, electrical engineering standards.

Standards Content (Sample)

SLOVENSKI STANDARD
01-junij-1998
Aramid pressboard for electrical purposes - Part 2: Methods of test (IEC 61629-
2:1996)
Aramid pressboard for electrical purposes -- Part 2: Methods of test
Aramid-Tafelpreßspan für elektrotechnische Zwecke -- Teil 2: Prüfverfahren
Carton comprimé aramide à usages électriques -- Partie 2: Méthodes d'essai
Ta slovenski standard je istoveten z: EN 61629-2:1996
ICS:
29.035.10 Papirni in kartonski izolacijski Paper and board insulating
materiali materials
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

NORME
CEI
INTERNATIONALE
IEC
1629-2
INTERNATIONAL
Première édition
STANDARD
First edition
1996-10
Carton comprimé aramide
à usages électriques –
Partie 2:
Méthodes d’essai
Aramid pressboard for electrical
purposes –
Part 2:
Methods of test
 CEI 1996  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
utilisée sous quelque forme que ce soit et par aucun procédé, in any form or by any means, electronic or mechanical,
électronique ou mécanique, y compris la photocopie et les including photocopying and microfilm, without permission
microfilms, sans l'accord écrit de l'éditeur. in writing from the publisher
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1629-2 © IEC:1996 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ARAMID PRESSBOARD FOR ELECTRICAL PURPOSES –
Part 2: Methods of test
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 organizations
liaising with the IEC also participate in this preparation. The 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 the IEC on technical matters express, as nearly as possible
...