SIST EN 61628-1:1998

• Abstract:

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

• Status: Published
• Publication Date: 31-May-1998
• ICS: 29.035.10 - Paper and board insulating materials
• Technical Committee: IIZS - Insulating materials and systems
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-Jun-1998
• Due Date: 01-Jun-1998
• Completion Date: 01-Jun-1998
• Ref Project: EN 61628-1:1997 - Corrugated pressboard and presspaper for electrical purposes - Part 1: Definitions, designations and general requirements

• Refers: SIST EN 12655:2002 - Gymnastic equipment - Hanging rings - Functional and safety requirements, test methods
• Effective Date: 09-Feb-2026
• Refers: SIST EN 60641-3-1:1998 - Specification for pressboard and presspaper for electrical purposes -- Part 3: Specifications for individual materials -- Sheet 1: Requirements for pressboard, types B.0.1, B.2.1, B.2.3, B.3.1, B.3.3, B.4.1, B.4.3, B.5.1, B.6.1 and B.7.1
• Effective Date: 03-Feb-2026
• Refers: SIST EN 60641-1:1998 - Specification for pressboard and presspaper for electrical purposes -- Part 1: Definitions and general requirements
• Effective Date: 03-Feb-2026
• Refers: SIST EN 60641-3-2:1998 - Specification for pressboard and presspaper for electrical purposes -- Part 3: Specifications for individual materials -- Sheet 2: Requirements for presspaper, types P.2.1, P.4.1, P.4.2, P.4.3, P.6.1 and P.7.1
• Effective Date: 03-Feb-2026
• Refers: SIST EN 60641-2:1998 - Specification for pressboard and presspaper for electrical purposes -- Part 2: Methods of test
• Effective Date: 03-Feb-2026

SIST EN 61628-1:1998 is the Slovenian standard for corrugated pressboard and presspaper for electrical purposes, identical to EN 61628-1:1997 and IEC 61628-1:1997. It specifies the definitions, designations and general requirements for these insulating materials, so manufacturers, specifiers and buyers can identify the material type and the basic conditions for supply and marking.

What does SIST EN 61628-1:1998 specify?

SIST EN 61628-1:1998 covers corrugated pressboard and presspaper used for electrical purposes. It gives the vocabulary for the material, the way it is designated, and the general requirements for composition, packaging and marking.

The document is organized into clauses on scope, normative references, definitions, designation, general requirements, conditions of supply and marking. In practice, that structure lets a reader move from what the standard applies to, to how to name the material, and then to how it must be supplied and identified.

The scope notes that these materials conform to established levels of performance, but selection for a specific application must still be based on the real needs of the application. Their primary use is electrical insulation, while other uses are not excluded.

What are the key requirements of SIST EN 61628-1:1998?

• Clause 1 - scope and application. SIST EN 61628-1:1998 treats the materials as having established performance levels, but says the final choice must match the actual application. For a buyer or engineer, this means the standard is a specification for the material family, not a substitute for application engineering.

• Clause 2 - normative references. SIST EN 61628-1:1998 depends on IEC 60641-1, IEC 60641-2, IEC 60641-3-1 and IEC 60641-3-2. These referenced standards provide the base definitions, test methods and individual material requirements used with this part.

• Clause 3 - corrugation definitions. SIST EN 61628-1:1998 defines corrugation as a repeated deviation from flatness across the sheet width, and it identifies sine, angular, symmetrical and non-symmetrical types. This matters because the corrugation profile is part of how the material is specified and ordered.

• Clause 4 - designation. SIST EN 61628-1:1998 requires a designation built from the base material type, thickness and corrugation type. Table 1 gives the code for the corrugation form, and the example shows how the full material code is assembled. In practice, this prevents ambiguity on drawings, purchase orders and inspection documents.

• Clause 5 - composition. SIST EN 61628-1:1998 requires the material to be made from pressboard or presspaper according to IEC 60641-1, and formed by mechanical pressure, heat, moisture or a combination of these, without additives. For users, this fixes the material family and the permitted forming process.

• Clause 6 - packaging. SIST EN 61628-1:1998 requires packaging that protects the material during handling, transport and storage. This is important because corrugated insulating materials can be damaged by poor handling before they are ever installed.

• Clause 7 - marking. SIST EN 61628-1:1998 requires each consignment to be clearly and legibly marked with an identifiable code, and any marking material must be electrically neutral, oil resistant and non-polluting to oil. That helps ensure traceability without introducing contamination into electrical equipment.

What terms does SIST EN 61628-1:1998 define?

• Corrugation - a regular repeated deviation from flatness that extends uniformly over the width of the sheet material.
• Sine type - a corrugation that follows the shape of a sine wave.
• Angular type - a corrugation with flat slanting sides and/or an end top, with or without a radius at the junction of the flat parts.
• Symmetrical type - a corrugation where the crests and valleys have identical shape and dimensions.
• Non-symmetrical type - a corrugation where the crests and valleys differ in shape and/or dimensions.

Who uses SIST EN 61628-1:1998?

SIST EN 61628-1:1998 is used by manufacturers of corrugated pressboard and presspaper, by engineers and designers who specify electrical insulating materials, and by purchasing and quality staff who need to order and verify the correct material designation.

It is also relevant in inspection and receiving checks, because it sets the code for identification and the basic expectations for packaging and marking. Anyone working with electrical insulation materials can use it to align ordering, labeling and acceptance of the supplied material.

Which standards are used with SIST EN 61628-1:1998?

• IEC 60641-1:1979, Amendment 1 (1993) - provides the definitions and general requirements for pressboard and presspaper for electrical purposes.
• IEC 60641-2:1979, Amendment 1 (1993) - provides the methods of test used with these materials.
• IEC 60641-3-1:1992 - gives requirements for individual pressboard materials, types B.0.1, B.2.1, B.2.3, B.3.1, B.3.3, B.4.1, B.4.3, B.5.1, B.6.1 and B.7.1.
• IEC 60641-3-2:1992 - gives requirements for individual presspaper materials, types P.2.1, P.4.1, P.4.2, P.4.3, P.6.1 and P.7.1.

What does the SIST EN 61628-1:1998 document contain?

SIST EN 61628-1:1998 contains short definitions for corrugation and its main forms, plus a designation system based on base material, thickness and corrugation type. It also includes a small code table for the corrugation designation and an example of a complete material designation.

The general requirements section covers composition, and the later clauses cover packaging and marking. In practical use, the document supports specification writing, procurement, incoming inspection and identification of corrugated insulating materials.

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Corrugated pressboard and presspaper for electrical purposes - Part 1: Definitions, designations and general requirements (IEC 61628-1:1997)Wellspan für elektrotechnische Zwecke -- Teil 1: Begriffe, Kennzeichnungen und allgemeine AnforderungenCartons et papiers comprimés ondulés à usages électriques -- Partie 1: Définitions, désignations et prescriptions généralesCorrugated pressboard and presspaper for electrical purposes -- Part 1: Definitions, designations and general requirements29.035.10Papirni in kartonski izolacijski materialiPaper and board insulating materialsICS:Ta slovenski standard je istoveten z:EN 61628-1:1997SIST EN 61628-1:1998en01-junij-1998SIST EN 61628-1:1998SLOVENSKI
STANDARD
NORMEINTERNATIONALECEIIECINTERNATIONALSTANDARD61628-1Première éditionFirst edition1997-11Cartons et papiers comprimés ondulés àusages électriques –Partie 1:Définitions, désignations etprescriptions généralesCorrugated pressboard and presspaperfor electrical purposes –Part 1:Definitions, designations andgeneral requirements Commission Electrotechnique Internationale International Electrotechnical
CommissionPour prix, voir catalogue en vigueurFor price, see current
catalogueÓ IEC 1997
Droits de reproduction réservés
¾ Copyright - all rights reservedAucune partie de cette publication ne peut être reproduite niutilisée sous quelque forme que ce soit et par aucunprocédé, électronique ou mécanique, y compris la photo-copie et les microfilms, sans l'accord écrit de l'éditeur.No part of this publication may be reproduced or utilized inany form or by any means, electronic or mechanical,including photocopying and microfilm, without
permission inwriting
from the publisher.International Electrotechnical Commission3, rue de Varembé
Geneva, SwitzerlandTelefax: [phone]e-mail: [e-mail] IEC web site
http: //www.iec.chCODE PRIXPRICE CODEFSIST EN 61628-1:1998

61628-1 © IEC:1997– 3 –INTERNATIONAL ELECTROTECHNICAL COMMISSION–––––––––––CORRUGATED PRESSBOARD AND PRESSPAPERFOR ELECTRICAL PURPOSES –Part 1: Definitions, designations andgeneral requirementsFOREWORD1)The IEC (International Electrotechnical Commission) is a worldwide organization for standardization comprisingall national electrotechnical committees (IEC National Committees). The object of the IEC is to promoteinternational co-operation on all questions concerning standardization in the electrical and electronic fields. Tothis end and in addition to other activities, the IEC publishes International Standards. Their preparation isentrusted to technical committees; any IEC National Committee interested in the subject dealt with mayparticipate in this preparatory work. International, governmental and non-governmental organizations liaisingwith the IEC also participate in this preparation. The IEC collaborates closely with the International Organizationfor Standardization (ISO) in accordance with conditions determined by agreement between the twoorganizations.2)The formal decisions or agreements of the IEC on technical matters express, as nearly as possible, aninternational consensus of opinion on the relevant subjects since each technical committee has representationfrom all interested National Committees.3)The documents produced have the form of recommendations for international use and are published in the formof 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 InternationalStandards transparently to the maximum extent possible in their national and regional standards. Anydivergence between the IEC Standard and the corresponding national or regional standard shall be clearlyindicated in the latter.5)The IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for anyequipment 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 subjectof 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 documents:FDISReport on voting15C/796/FDIS15C/844/RVDFull information on the voting for the approval of this standard can be found
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