IEC 61628-1-1997 PDF

Full title and description

Corrugated pressboard and presspaper for electrical purposes - Part 1: Definitions, designations and general requirements. This International Standard defines terminology, designations, classification and the general requirements and conditions of supply for corrugated pressboard and presspaper used as insulating materials in electrical equipment.

Abstract

This part of IEC 61628 establishes definitions, designation rules and the general requirements that apply to corrugated pressboard and presspaper intended for electrical insulating purposes. It sets out basic characteristics, marking and supply conditions to ensure consistent specification and interchangeability of these insulating materials across manufacturers and users.

General information

• Status: International Standard — published as the IEC base publication; maintained with a stability date.
• Publication date: 7 November 1997.
• Publisher: International Electrotechnical Commission (IEC).
• ICS / categories: 29.035.10 — Paper and board insulating materials.
• Edition / version: Edition 1.0 (first edition, 1997).
• Number of pages: 11.

Scope

IEC 61628-1:1997 applies to corrugated pressboard and presspaper produced for electrical insulation applications. It provides standardized definitions, designation systems, general material requirements, marking and conditions of supply so that manufacturers, test laboratories and equipment builders can specify and use these materials consistently. The standard does not itself give the detailed test procedures, which are provided in Part 2 of the series.

Key topics and requirements

• Definitions and terminology for corrugated pressboard and presspaper (bilingual English/French text in the publication).
• Designation rules and classification of corrugation types and material classes.
• General performance and manufacturing requirements relevant to electrical insulation uses.
• Conditions of supply and marking requirements to ensure traceability and correct application.
• Normative references and relationships to test methods (tests are specified in IEC 61628-2, methods for compressive strength, dimensional change on drying, corrugation dimensions, etc.).

Typical use and users

Used by manufacturers of insulating paper and pressboard, designers and manufacturers of electrical equipment (transformers, switchgear, bushings and other components requiring solid insulation), material testing laboratories, procurement/specification engineers and standards committees involved with insulating materials. It is referenced where a formal, international designation and basic requirements for corrugated insulating board or paper are required.

Related standards

Primary companion document: IEC 61628-2 (Part 2: Methods of test), which defines the test procedures referenced by Part 1. EN and national adoptions of IEC 61628-1 exist(ed) (for example EN 61628-1:1997 and various national versions); note that some regional/adopted editions have been withdrawn or updated at different times—verify the relevant national or regional standardization body for current adoption status.

Keywords

corrugated pressboard, presspaper, insulating paper, electrical insulation, IEC 61628, definitions, designations, general requirements, TC 15, paper and board insulating materials.

FAQ

Q: What is this standard?

A: IEC 61628-1:1997 is the first part of the international standard series covering corrugated pressboard and presspaper for electrical purposes; Part 1 provides definitions, designation rules and general requirements for these insulating materials.

Q: What does it cover?

A: It covers terminology, how materials are designated and classified, general performance and supply/marking requirements for corrugated pressboard and presspaper used as electrical insulation. Detailed test methods are given in IEC 61628-2.

Q: Who typically uses it?

A: Material manufacturers, electrical-equipment designers and manufacturers (e.g., transformer and switchgear producers), test laboratories, procurement/specification engineers and standards bodies are the primary users.

Q: Is it current or superseded?

A: The IEC base publication (IEC 61628-1:1997) remains the published first edition; the IEC webstore indicates the publication details and stability planning. Some regional/adopted versions (for example the EN adoption) have been withdrawn at different times (EN 61628-1:1997 was withdrawn in regional listings), so users should check their national or regional standards body for the active adoption status applicable to their market.

Q: Is it part of a series?

A: Yes — it is Part 1 of IEC 61628. Part 2 (IEC 61628-2) specifies methods of test; consolidated and amended editions of Part 2 are also published.

Q: What are the key keywords?

A: corrugated pressboard, presspaper, insulating materials, electrical insulation, definitions, designation, marking, IEC 61628, TC 15, paper and board insulating materials.