IEC 61212-1:2006

Insulating materials - Industrial rigid round laminated tubes and rods based on thermosetting resins for electrical purposes - Part 1: Definitions, designations and general requirements

IEC 61212-1:2006 gives the definitions related to the designations to be used for, and the general requirements to be fulfilled by, industrial rigid round laminated tubes and rods for electrical purposes made with any of the following resins as the binder: phenolic, epoxy (epoxide), melamine and silicone. The following reinforcements may be used either singly or in combination: cellulosic paper, woven cotton cloth, woven glass cloth, mica paper. This second edition cancels and replaces the first edition published in 1995 and constitutes a technical revision. The main changes from the previous edition are as follows: added application use and safety statements. Reformatted document to bring it up to current IEC document format. Method for designation of tubes changed in line with common practice. New types EP GC 23 and PF CC 24 added. Type PF CP 24 removed. Keywords: industrial rigid round laminated tubes and rods, phenolic, epoxy (epoxide), melamine, silicone

Matériaux isolants - Tubes et barres industriels rigides, ronds, stratifiés à base de résines thermodurcissables à usages électriques - Partie 1: Définitions, désignations et exigences générales

L'IEC 61212-1:2006 donne les définitions liées aux désignations à utiliser et aux exigences générales à satisfaire pour les tubes et barres industriels, rigides, ronds, stratifiés à usages électriques fabriqués avec l'une des résines suivantes comme liant: phénolique, époxy (époxyde), mélamine et silicone. Il est admis d'utiliser les matériaux de renfort suivants soit isolément soit en combinaison: papier cellulosique, tissu de coton, tissu de verre, papier mica. Cette deuxième édition annule et remplace la première édition publiée en 1995 et constitue une révision technique. Les principales modifications apportées par rapport à l'édition précédente sont les suivantes: instructions supplémentaires relatives à l'utilisation et à la sécurité de l'application. Reformatage du document pour respecter le format de document actuel de la CEI. Modifications de la méthode de désignation des tubes dans le respect des pratiques courantes. Ajout des nouveaux types EP GC 23 et PF CC 24. Suppression du type PF CP 24. Mots clés: tubes et barres industriels rigides, ronds, stratifies, phénolique, époxy (époxyde), melamine, silicone

General Information

• Status: Published
• Publication Date: 07-Mar-2006
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• ICS: 29.035.01 - Insulating materials in general
• Technical Committee: TC 15 - Solid electrical insulating materials
• Drafting Committee: WG 6 - TC 15/WG 6
• Current Stage: PPUB - Publication issued
• Start Date: 15-Jun-2006
• Completion Date: 08-Mar-2006

Relations

• Corrected By: IEC 61212-1:2006/COR1:2014 - Corrigendum 1 - Insulating materials - Industrial rigid round laminated tubes and rods based on thermosetting resins for electrical purposes - Part 1: Definitions, designations and general requirements
• Effective Date: 05-Sep-2023

Standards Content (Sample)

INTERNATIONAL IEC
STANDARD 61212-1
Second edition
2006-03
Insulating materials –
Industrial rigid round laminated tubes
and rods based on thermosetting resins
for electrical purposes –
Part 1:
Definitions, designations and general
requirements
Reference number
Publication numbering
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60000 series. For example, IEC 34-1 is now referred to as IEC 60034-1.
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INTERNATIONAL IEC
STANDARD 61212-1
Second edition
2006-03
Insulating materials –
Industrial rigid round laminated tubes
and rods based on thermosetting resins
for electrical purposes –
Part 1:
Definitions, designations and general
requirements
 IEC 2006  Copyright - all rights reserved
No part of this publication may be reproduced or utilized in any form or by any means, electronic or
mechanical, including photocopying and microfilm, without permission in writing from the publisher.
International Electrotechnical Commission, 3, rue de Varembé, PO Box 131, CH-1211 Geneva 20, Switzerland
Telephone: [phone] Telefax: [phone] E-mail: [e-mail] Web: www.iec.ch
PRICE CODE
Commission Electrotechnique Internationale L
International Electrotechnical Commission
МеждународнаяЭлектротехническаяКомиссия
For price, see current catalogue

– 2 – 61212-1  IEC:2006(E)
CONTENTS
FOREWORD.3
INTRODUCTION.5

1 Scope.6
2 Normative references .6
3 Terms and definitions .6
4 Designations and abbreviations .7
4.1 General .7
4.2 Designation .7
4.3 Abbreviations .8
4.4 Characteristics of types .8
5 General requirements – Appearance .10
6 Conditions of supply .11

Table 1 – Types of industrial laminated round rolled tubes.8
Table 2 – Types of industrial laminated round moulded tubes .9
Table 3 – Types of industrial laminated round moulded rods .10

61212-1  IEC:2006(E) – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
INSULATING MATERIALS –
INDUSTRIAL RIGID ROUND LAMINATED TUBES
AND RODS BASED ON THERMOSETTING RESINS
FOR ELECTRICAL PURPOSES –
Part 1: Definitions, designations and general requirements

FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of 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, IEC publishes International Standards, Technical Specifications,
Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC
Publication(s)”). 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. 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 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 IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence
between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
the latter.
5) IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with an IEC Publication.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 61212-1 has been prepared by IEC technical committee 15:
Standards on specifications for electrical insulating materials.
This second edition cancels and replaces the first edition published in 1995 and
constitutes a technical revision.
The main changes from the previous edition are as follows: added application use and
safety statements. Reformatted document to bring it up to current IEC document format.
Method for designation of tubes changed in line with common practice. New types EP GC 23
and PF CC 24 added. Type PF CP 24 removed.

– 4 – 61212-1  IEC:2006(E)
The text of this standard is based on the following documents:
FDIS Report on voting
15/271/FDIS 15/304/RVD
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
A bilingual version of this publication may be issued at a later date.
The committee has decided that the contents of this publication will remain unchanged until
the maintenance result date indicated on the IEC web site under "http://webstore.iec.ch" in
the data related to the specific publication. At this date, the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
The contents of the corrigendum of March 2014 have been included in this copy.

61212-1  IEC:2006(E) – 5 –
INTRODUCTION
This International Standard is one of a series which deals with industrial rigid round laminated
tubes and rods based on thermosetting resins for electrical purposes.
This series consists of three parts:
Part 1: Definitions, designations and general requirements (IEC 61212-1)
Part 2: Methods of test (IEC 61212-2)
Part 3: Specifications for individual materials (IEC 61212-3)

– 6 – 61212-1  IEC:2006(E)
INSULATING MATERIALS –
INDUSTRIAL RIGID ROUND LAMINATED TUBES
AND RODS BASED ON THERMOSETTING RESINS
FOR ELECTRICAL PURPOSES –
Part 1: Definitions, designations and general requirements

1 Scope
This part of IEC 61212 gives the definitions related to the designations to be used for, and the
general requirements to be fulfilled by, industrial rigid round laminated tubes and rods for
electrical purposes made with any of the following resins as the binder: phenolic, epoxy
(epoxide), melamine and silicone. The following reinforcements may be used either singly or
in combination: cellulosic paper, woven cotton cloth, woven glass cloth, mica paper.
Materials which conform to this specification meet established levels of performance.
However, the selection of a material by a user for a specific application should be based on
the actual requirements necessary for adequate performance in that application and not
based on this specification alone.
Safety warning:
It is the responsibility of the user of the methods contained or referred to in this document to
ensure that they are used in a safe manner.
2 Normative references
The following referenced documents are indispensable for the application of this document.
For dated references, only the edition cited applies. For undated references, the latest edition
of the referenced document (including any amendments) applies.
IEC 61212-2:2006, Insulating materials – Industrial rigid round laminated tubes and rods
based on thermosetting resins for electrical purposes – Part 2: Methods of test
IEC 61212-3 (all parts):, Insulating materials – Industrial rigid round laminated tubes and
rods based on thermosetting resins for electrical purposes – Part 3: Specifications for
individual materials
ISO 472, Plastics – Vocabulary
3 Terms and definitions
For the purposes of this document, the following definitions, which are taken from ISO 472,
apply.
3.1
round laminated rolled tube (as applied to thermosets)
tube formed by rolling impregnated layers of material on a mandrel between heated pressure
rolls, curing in an oven, and then removing the mandrel
[ISO 472, MOD]
61212-1  IEC:2006(E) – 7 –
3.2
round laminated moulded tube (as applied to thermosets)
tube formed by rolling impregnated layers of material on a mandrel, curing the assembly in a
cylindrical mould under heat and pressure, and then removing the mandrel
[ISO 472 MOD]
3.3
round laminated moulded rod (as applied to thermosets)
rod formed by rolling impregnated layers of material on a mandrel, removing the mandrel,
curing in a cylindrical mould under heat and pressure, and grinding to size
[ISO 472, MOD]
4 Designations and abbreviations
4.1 General
The tubes and rods covered by this standard, and tested according to the methods defined in
IEC 61212-2 are classified into types which differ in the resin and reinforcement which is used
in the manufacture of the products, the method of manufacture and their distinguishing
properties.
4.2 Designation
Individual types are designated by
– a two-letter abbreviation denoting the resin;
– a second two-letter abbreviation, denoting the reinforcement;
– a serial number of two digits, the first digit denoting the form of the material,
a “2” indicates rolled tubes,
a “3” indicates moulded tubes,
a “4” indicates moulded rods,
and, a second digit denoting sub-grades of the same type.
The abbreviations are given in 4.3.
The complete designation of the tube or rod is denoted by
– description: rolled tube, moulded tube or moulded rod;
– number of the IEC standard: IEC 61212 – 3 – Sheet No.;
– designation of the individual type;
– dimensions (in millimetres):
 of the tube: internal diameter x external diameter x length;
 of the rod: diameter x length.
– a letter designating the finish on the external surface of the tube or rod:
 "A" designating tubes or rods in the "as produced" condition;
 "B" designating tubes or rods in ground or turned condition.
Examples:
– Rolled tube IEC 61212 – 3 – 1 – EP GC 21 – 25 × 37 × 1 000 – A
– Moulded tube IEC 61212 – 3 – 2 – EP CC 31 – 25 × 37 × 1 000 – A
– Moulded rod IEC 61212 – 3 – 3 – E
...

IEC 61212-1 ®
Edition 2.0 2006-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Insulating materials – Industrial rigid round laminated tubes
and rods based on thermosetting resins for electrical purposes –
Part 1: Definitions, designations and general requirements

Matériaux isolants – Tubes et barres industriels rigides, ronds, stratifiés à base
de résines thermodurcissables à usages électriques –
Partie 1: Définitions, désignations et exigences générales

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IEC 61212-1 ®
Edition 2.0 2006-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Insulating materials – Industrial rigid round laminated tubes

and rods based on thermosetting resins for electrical purposes –

Part 1: Definitions, designations and general requirements

Matériaux isolants – Tubes et barres industriels rigides, ronds, stratifiés à base

de résines thermodurcissables à usages électriques –

Partie 1: Définitions, désignations et exigences générales

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX L
ICS 29.035.01 ISBN 978-2-8322-1597-5

– 2 – IEC 61212-1:2006 © IEC 2006
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 Designations and abbreviations . 7
4.1 General . 7
4.2 Designation . 7
4.3 Abbreviations . 8
4.4 Characteristics of types . 8
5 General requirements – Appearance . 10
6 Conditions of supply . 11

Table 1 – Types of industrial laminated round rolled tubes . 8
Table 2 – Types of industrial laminated round moulded tubes . 9
Table 3 – Types of industrial laminated round moulded rods . 10

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
INSULATING MATERIALS –
INDUSTRIAL RIGID ROUND LAMINATED TUBES
AND RODS BASED ON THERMOSETTING RESINS
FOR ELECTRICAL PURPOSES –
Part 1: Definitions, designations and general requirements

FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of 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, IEC publishes International Standards, Technical Specifications,
Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC
Publication(s)”). 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. 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 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 IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence
between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
the latter.
5) IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with an IEC Publication.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 61212-1 has been prepared by IEC technical committee 15:
Standards on specifications for electrical insulating materials.
This bilingual version (2014-05) corresponds to the English version, published in 2006-03.
This second edition cancels and replaces the first edition published in 1995 and
constitutes a technical revision.
The main changes from the previous edition are as follows: added application use and
safety statements. Reformatted document to bring it up to current IEC document format.
Method for designation of tubes changed in line with common practice. New types EP GC 23
and PF CC 24 added. Type PF CP 24 removed.

– 4 – IEC 61212-1:2006 © IEC 2006
The text of this standard is based on the following documents:
FDIS Report on voting
15/271/FDIS 15/304/RVD
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
The French version of this standard has not been voted upon.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
A bilingual version of this publication may be issued at a later date.
The committee has decided that the contents of this publication will remain unchanged until
the maintenance result date indicated on the IEC web site under "http://webstore.iec.ch" in
the data related to the specific publication. At this date, the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
The contents of the corrigendum of March 2014 have been included in this copy.

INTRODUCTION
This International Standard is one of a series which deals with industrial rigid round laminated
tubes and rods based on thermosetting resins for electrical purposes.
This series consists of three parts:
Part 1: Definitions, designations and general requirements (IEC 61212-1)
Part 2: Methods of test (IEC 61212-2)
Part 3: Specifications for individual materials (IEC 61212-3)

– 6 – IEC 61212-1:2006 © IEC 2006
INSULATING MATERIALS –
INDUSTRIAL RIGID ROUND LAMINATED TUBES
AND RODS BASED ON THERMOSETTING RESINS
FOR ELECTRICAL PURPOSES –
Part 1: Definitions, designations and
...