IEC 61212-3-2:2013

IEC 61212-3-2 ®
Edition 3.0 2013-04
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Insulating materials – Industrial rigid round laminated tubes and rods based on
thermosetting resins for electrical purposes –
Part 3: Specifications for individual materials – Sheet 2: Round laminated
moulded tubes
Matériaux isolants – Tubes et barres industriels rigides, ronds, stratifiés, à base
de résines thermodurcissables, à usages électriques –
Partie 3: Spécifications pour matériaux particuliers – Feuille 2: Tubes ronds
stratifiés moulés
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IEC 61212-3-2 ®
Edition 3.0 2013-04
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Insulating materials – Industrial rigid round laminated tubes and rods based on

thermosetting resins for electrical purposes –

Part 3: Specifications for individual materials – Sheet 2: Round laminated

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

de résines thermodurcissables, à usages électriques –

Partie 3: Spécifications pour matériaux particuliers – Feuille 2: Tubes ronds

stratifiés moulés
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX M
ICS 29.035.01 ISBN 978-2-83220-759-8

– 2 – 61212-3-2 © IEC:2013
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 . 7
5 Requirements . 7
Bibliography . 13

Table 1 – Types of industrial round moulded tubes . 8
Table 2 – Permissible deviation from nominal external diameter of round moulded
tubes in the “as moulded" condition . 8
Table 3 – Permissible deviation from nominal external diameter of moulded tubes in
ground or turned condition, all types . 9
Table 4 – Permissible deviation from nominal internal diameter of moulded tubes . 9
Table 5 – Tolerance on wall thickness for round moulded tubes . 9
Table 6 – Departure from straightness for round moulded tubes . 10
Table 7 – Property requirements for round moulded tubes . 11
Table 8 – Electric strength at 90 °C in oil, perpendicular to laminations for round
a
moulded tubes (1 min proof test or 20 s step-by-step test) (kV/mm) . 12

61212-3-2 © IEC:2013 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
INSULATING MATERIALS –
INDUSTRIAL RIGID ROUND LAMINATED TUBES
AND RODS BASED ON THERMOSETTING RESINS
FOR ELECTRICAL PURPOSES –
Part 3: Specifications for individual materials –
Sheet 2: Round laminated moulded tubes

FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
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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 61212-3-2 has been prepared by IEC technical committee 15:
Solid electrical insulating material.
This third edition cancels and replaces the second edition published in 2006. This edition
constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
Details of test for insulation resistance after immersion in water are changed.

– 4 – 61212-3-2 © IEC:2013
The text of this standard is based on the following documents:
FDIS Report on voting
15/700/FDIS 15/710/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 list of all parts in the IEC 61212 series, published under the general title Insulating
materials – Industrial rigid round laminated tubes and rods based on thermosetting resins for
electrical purposes, can be found on the IEC website.
The committee has decided that the contents of this publication will remain unchanged until
the stability 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.
61212-3-2 © IEC:2013 – 5 –
INTRODUCTION
This part of IEC 61212 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)
IEC 61212-3-2 contains one of the specification sheets comprising Part 3, as follows:
Sheet 2: Round laminated moulded tubes.

– 6 – 61212-3-2 © IEC:2013
INSULATING MATERIALS –
INDUSTRIAL RIGID ROUND LAMINATED TUBES
AND RODS BASED ON THERMOSETTING RESINS
FOR ELECTRICAL PURPOSES –
Part 3: Specifications for individual materials –
Sheet 2: Round laminated moulded tubes

1 Scope
This part of IEC 61212 gives requirements for industrial rigid round laminated moulded tubes
for electrical purposes, based on different resi
...