Corrugated pressboard and presspaper for electrical purposes - Part 1: Definitions, designations and general requirements

Contains the definitions, designations and general requirements of corrugated pressboard and presspaper for electrical purposes.

Cartons et papiers comprimés ondulés à usages électriques - Partie 1: Définitions, désignations et prescriptions générales

Décrit les définitions et prescriptions générales du carton et du papier comprimés ondulés à usages électriques.

General Information

Status
Published
Publication Date
06-Nov-1997
Drafting Committee
MT 14 - TC 15/MT 14
Current Stage
PPUB - Publication issued
Start Date
07-Nov-1997
Completion Date
30-Nov-1997

Overview

IEC 61628-1:1997, titled Corrugated pressboard and presspaper for electrical purposes – Part 1: Definitions, designations and general requirements, is an international standard developed by the International Electrotechnical Commission (IEC). This standard provides a comprehensive framework for the definitions, identification codes, and general requirements for corrugated pressboard and presspaper used primarily in electrical insulation applications. The guidelines ensure consistent performance and quality of these materials for manufacturers, engineers, and users in the electrical industry.

Key Topics

  • Definitions and Terminology:
    • Establishes key terms such as “corrugation” (regular repeated deviation from flatness over the entire sheet), and categorizes types of corrugation by shape and symmetry.
  • Corrugation Types:
    • Sine (sinusoidal) and angular patterns
    • Symmetrical and non-symmetrical forms
    • Four possible combinations for precise specification
  • Designation System:
    • Unique code indicating base material (as specified in IEC 60641-1), thickness, and corrugation type; e.g., B3.1/1/SS (where SS stands for symmetrical sine).
  • Material Composition:
    • Requires materials to be manufactured from specified pressboard or presspaper without additives, shaped by mechanical pressure, heat, or moisture.
  • General Supply Conditions:
    • Stipulates adequate packaging for protection throughout handling and transit.
  • Marking and Identification:
    • Requires legible, standardized identification codes on delivery
    • Mandates use of marking materials that are electrically neutral, oil resistant, and non-polluting

Applications

Corrugated pressboard and presspaper specified by IEC 61628-1 are predominantly used as electrical insulation in high-voltage equipment such as transformers, reactors, and related apparatus. Their structured corrugation provides mechanical flexibility, space for oil circulation or ventilation, and enhanced dielectric properties. While insulation is the main application, the material’s unique properties may also be suitable for other uses where mechanical robustness and chemical stability are required.

Typical application areas include:

  • Power and distribution transformers
  • Electrical reactors
  • High-voltage switchgear
  • Custom electrical insulation solutions
  • Potential use in environments requiring strong, oil-resistant, and stable insulating materials

Related Standards

IEC 61628-1 references and complements several other IEC standards, ensuring a harmonized approach within electrical insulation materials:

  • IEC 60641 Series:
    • IEC 60641-1: Definitions and general requirements for pressboard and presspaper for electrical purposes
    • IEC 60641-2: Methods of test for these materials
    • IEC 60641-3-1 and 60641-3-2: Specifications for individual material types (both pressboard and presspaper)
  • Additional references:
    • IEC 60050: International Electrotechnical Vocabulary
    • IEC 60027, IEC 60417, IEC 60617: Symbol standards applicable for documentation

These standards ensure consistency and interoperability in the electrical industry globally, aiding specification, procurement, and quality assurance processes for insulating materials.

Practical Value

Adhering to IEC 61628-1 ensures that corrugated pressboard and presspaper materials are defined, marked, and supplied according to internationally recognized criteria. This reduces ambiguity in procurement, supports regulatory compliance, and enhances reliability in critical electrical infrastructure projects. Manufacturers benefit from clear production and marking requirements, while users and engineers gain increased confidence in material suitability and performance for demanding electrical insulation applications.

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Standard

IEC 61628-1:1997 - Corrugated pressboard and presspaper for electrical purposes - Part 1: Definitions, designations and general requirements Released:11/7/1997

ISBN:2-8318-4111-9
English and French language (11 pages)
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Frequently Asked Questions

IEC 61628-1:1997 is a standard published by the International Electrotechnical Commission (IEC). Its full title is "Corrugated pressboard and presspaper for electrical purposes - Part 1: Definitions, designations and general requirements". This standard covers: Contains the definitions, designations and general requirements of corrugated pressboard and presspaper for electrical purposes.

Contains the definitions, designations and general requirements of corrugated pressboard and presspaper for electrical purposes.

IEC 61628-1:1997 is classified under the following ICS (International Classification for Standards) categories: 29.035.10 - Paper and board insulating materials. The ICS classification helps identify the subject area and facilitates finding related standards.

IEC 61628-1:1997 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.

Standards Content (Sample)


NORME
CEI
INTERNATIONALE
IEC
61628-1
INTERNATIONAL
Première édition
STANDARD
First edition
1997-11
Cartons et papiers comprimés ondulés à
usages électriques –
Partie 1:
Définitions, désignations et
prescriptions générales
Corrugated pressboard and presspaper
for electrical purposes –
Part 1:
Definitions, designations and
general requirements
Numéro de référence
Reference number
CEI/IEC 61628-1:1997
Numéros des publications Numbering
Depuis le 1er janvier 1997, les publications de la CEI As from the 1st January 1997 all IEC publications are
sont numérotées à partir de 60000. issued with a designation in the 60000 series.
Publications consolidées Consolidated publications
Les versions consolidées de certaines publications de Consolidated versions of some IEC publications
la CEI incorporant les amendements sont disponibles. including amendments are available. For example,
Par exemple, les numéros d’édition 1.0, 1.1 et 1.2 edition numbers 1.0, 1.1 and 1.2 refer, respectively, to
indiquent respectivement la publication de base, la the base publication, the base publication
publication de base incorporant l’amendement 1, et la incorporating amendment 1 and the base publication
publication de base incorporant les amendements 1 incorporating amendments 1 and 2.
et 2.
Validité de la présente publication Validity of this publication
Le contenu technique des publications de la CEI est The technical content of IEC publications is kept under
constamment revu par la CEI afin qu'il reflète l'état constant review by the IEC, thus ensuring that the
actuel de la technique. content reflects current technology.
Des renseignements relatifs à la date de Information relating to the date of the reconfirmation of
reconfirmation de la publication sont disponibles dans the publication is available in the IEC catalogue.
le Catalogue de la CEI.
Les renseignements relatifs à ces révisions, à l'établis- Information on the revision work, the issue of revised
sement des éditions révisées et aux amendements editions and amendments may be obtained from
peuvent être obtenus auprès des Comités nationaux de IEC National Committees and from the following
la CEI et dans les documents ci-dessous: IEC sources:
• Bulletin de la CEI • IEC Bulletin
• Annuaire de la CEI • IEC Yearbook
Accès en ligne* On-line access*
• Catalogue des publications de la CEI • Catalogue of IEC publications
Publié annuellement et mis à jour régulièrement Published yearly with regular updates
(Accès en ligne)* (On-line access)*
Terminologie, symboles graphiques Terminology, graphical and letter
et littéraux symbols
En ce qui concerne la terminologie générale, le lecteur For general terminology, readers are referred to
se reportera à la CEI 60050: Vocabulaire Electro- IEC 60050: International Electrotechnical Vocabulary
technique International (VEI). (IEV).
Pour les symboles graphiques, les symboles littéraux For graphical symbols, and letter symbols and signs
et les signes d'usage général approuvés par la CEI, le approved by the IEC for general use, readers are
lecteur consultera la CEI 60027: Symboles littéraux à referred to publications IEC 60027: Letter symbols to
utiliser en électrotechnique, la CEI 60417: Symboles be used in electrical technology, IEC 60417: Graphical
symbols for use on equipment. Index, survey and
graphiques utilisables sur le matériel. Index, relevé et
compilation des feuilles individuelles, et la CEI 60617: compilation of the single sheets and IEC 60617:
Symboles graphiques pour schémas. Graphical symbols for diagrams.
Publications de la CEI établies par IEC publications prepared by the same
le même comité d'études technical committee
L'attention du lecteur est attirée sur les listes figurant The attention of readers is drawn to the end pages of
à la fin de cette publication, qui énumèrent les this publication which list the IEC publications issued
publications de la CEI préparées par le comité by the technical committee which has prepared the
d'études qui a établi la présente publication. present publication.
* Voir adresse «site web» sur la page de titre. * See web site address on title page.

NORME
CEI
INTERNATIONALE
IEC
61628-1
INTERNATIONAL
Première édition
STANDARD
First edition
1997-11
Cartons et papiers comprimés ondulés à
usages électriques –
Partie 1:
Définitions, désignations et
prescriptions générales
Corrugated pressboard and presspaper
for electrical purposes –
Part 1:
Definitions, designations and
general requirements
 IEC 1997 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 any form or by any means, electronic or mechanical,
procédé, électronique ou mécanique, y compris la photo- including photocopying and microfilm, without permission in
copie et les 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

– 2 – 61628-1 © CEI:1997
COMMISSION ÉLECTROTECHNIQUE INTERNATIONALE
–––––––––––
CARTONS ET PAPIERS COMPRIMÉS ONDULÉS À
USAGES ÉLECTRIQUES –
Partie 1: Définitions, désignations et
prescriptions générales
AVANT-PROPOS
1) La CEI (Commission Electrotechnique Internationale) est une organisation mondiale de normalisation composée
de l'ensemble des comités électrotechniques nationaux (Comités nationaux de la CEI). La CEI a pour objet de
favoriser la coopération internationale pour toutes les questions de normalisation dans les domaines de
l'électricité et de l'électronique. A cet effet, la CEI, entre autres activités, publie des Normes Internationales.
Leur élaboration est confiée à des comités d'études, aux travaux desquels tout Comité national intéressé par le
sujet traité peut participer. Les organisations internationales, gouvernementales et non gouvernementales, en
liaison avec la CEI, participent également aux travaux. La CEI collabore étroitement avec l'Organisation
Internationale de Normalisation (ISO), selon des conditions fixées par accord entre les deux organisations.
2) Les décisions ou accords officiels de la CEI concernant les questions techniques, représentent, dans la mesure
du possible un accord international sur les sujets étudiés, étant donné que les Comités nationaux intéressés
sont représentés dans chaque comité d’études.
3) Les documents produits se présentent sous la forme de recommandations internationales. Ils sont publiés
comme normes, rapports techniques ou guides et agréés comme tels par les Comités nationaux.
4) Dans le but d'encourager l'unification internationale, les Comités nationaux de la CEI s'engagent à appliquer de
façon transparente, dans toute la mesure possible, les Normes internationales de la CEI dans leurs normes
nationales et régionales. Toute divergence entre la norme de la CEI et la norme nationale ou régionale
correspondante doit être indiquée en termes clairs dans cette dernière.
5) La CEI n’a fixé aucune procédure concernant le marquage comme indication d’approbation et sa responsabilité
n’est pas engagée quand un matériel est déclaré conforme à l’une de ses normes.
6) L’attention est attirée sur le fait que certains des éléments de la présente Norme internationale peuvent faire
l’objet de droits de propriété intellectuelle ou de droits analogues. La CEI ne saurait être tenue pour
responsable de ne pas avoir identifié de tels droits de propriété et de ne pas avoir signalé leur existence.
La Norme internationale CEI 61628-1 a été établie par le sous-comité 15C: Spécifications, du
comité d’études 15 de la CEI: Matériaux isolants.
Le texte de cette norme est issu des documents suivants:
FDIS Rapport de vote
15C/796/FDIS 15C/844/RVD
Le rapport de vote indiqué dans le tableau ci-dessus donne toute information sur le vote ayant
abouti à l'approbation de cette norme.

61628-1 © IEC:1997 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
–––––––––––
CORRUGATED PRESSBOARD AND PRESSPAPER
FOR ELECTRICAL PURPOSES –
Part 1: Definitions, designations and
general requirements
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, an
international consensus of opinion on the relevant subjects since each technical committee has representation
from all interested National Committees.
3) The documents produced have the form of recommendations for international use and are published in the form
of standards, technical reports or guides and they are accepted by the National Committees in that sense.
4) In order to promote international unification, IEC National Committees undertake to apply IEC International
Standards transparently to the maximum extent possible in their national and regional standards. Any
divergence between the IEC Standard and the corresponding national or regional standard shall be clearly
indicated in the latter.
5) The IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with one of its standards.
6) Attention is drawn to the possibility that some of the elements of this International Standard may be the subject
of patent rights. The IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 61628-1 has been prepared by subcommittee 15C: Specifications,
of IEC technical committee 15: Insulating materials.
The text of this standard is based on the following docum
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