SIST EN 61212-3-3:2007

• Abstract:

  This part of IEC 61212-3 gives requirements for industrial rigid round laminated moulded rods for electrical purposes, based on different resins and different reinforcements. 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.

• Status: Published
• Publication Date: 30-Sep-2007
• ICS: 29.035.01 - Insulating materials in general
• Technical Committee: IZO - Insulating materials
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 13-Sep-2007
• Due Date: 18-Nov-2007
• Completion Date: 01-Oct-2007
• Ref Project: EN 61212-3-3:2006 - Insulating materials - Industrial rigid round laminated tubes and rods based on thermosetting resins for electrical purposes - Part 3: Specifications for individual materials - Sheet 3: Round laminated moulded rods

• Replaces: SIST EN 61212-3-3:1998 - Industrial rigid round laminated tubes and rods based on thermosetting resins for electrical purposes -- Part 3: Specifications for individual materials -- Sheet 3: Round laminated moulded rods
• Effective Date: 01-Nov-2007
• Refers: SIST EN ISO 472:2002 - Plastics - Vocabulary (ISO 472:1999)
• Effective Date: 09-Feb-2026
• Refers: SIST EN 61212-2:2007 - Insulating materials - Industrial rigid round laminated tubes and rods based on thermosetting resins for electrical purposes -- Part 2: Methods of test
• Effective Date: 03-Feb-2026
• Refers: SIST-TS ES 59008-3:2007 - Data requirements for semiconductor die -- Part 3: Mechanical, material and connectivity requirements
• Effective Date: 03-Feb-2026
• Refers: SIST EN 61212-1:2007 - 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: 03-Feb-2026
• Referred By: SIST EN 62631-3-1:2016 - Dielectric and resistive properties of solid insulating materials - Part 3-1: Determination of resistive properties (DC Methods) - Volume resistance and volume resistivity, general method (IEC 62631-3-1:2016)
• Effective Date: 03-Feb-2026
• Revised: SIST EN 61212-3-3:1998 - Industrial rigid round laminated tubes and rods based on thermosetting resins for electrical purposes -- Part 3: Specifications for individual materials -- Sheet 3: Round laminated moulded rods
• Effective Date: 13-May-2010

SIST EN 61212-3-3:2007 is the SIST adoption of EN 61212-3-3:2006, identical to IEC 61212-3-3:2006. It specifies requirements for industrial rigid round laminated moulded rods based on thermosetting resins for electrical purposes. The standard is meant for manufacturers, testers, specifiers, buyers, and users who need to identify a rod type and verify its properties for electrical, mechanical, or electronic use.

What does SIST EN 61212-3-3:2007 specify?

SIST EN 61212-3-3:2007 specifies individual material requirements for round laminated moulded rods used in electrical applications. It covers rods made from different resins and reinforcements, and it links each material type to its distinguishing properties and typical applications.

The document is organized into:

• Scope
• Normative references
• Terms and definitions
• Designations and abbreviations
• Requirements

Annex ZA gives the normative references to the corresponding European publications. The scope also makes clear that the standard is about performance levels for the material type, while actual material selection still has to match the needs of the intended application.

What are the key requirements of SIST EN 61212-3-3:2007?

SIST EN 61212-3-3:2007 requires conformity to the general requirements in IEC 61212-1 and then adds material-specific limits in Tables 2, 3, and 4. In practice, that means a rod is not specified by name alone - its dimensions, finish, and property class must also fit the job.

Material classification and designation

Clause 4 classifies the rods by resin, reinforcement, method of manufacture, and distinguishing properties. The designation includes:

• a two-letter resin code
• a two-letter reinforcement code
• a two-digit serial number
• dimensions in millimetres
• a finish letter for the external diameter

The standard uses finish codes for rods supplied in the as-produced condition or in ground or turned condition. This matters because a buyer or drawing needs the exact material form, not just the resin family.

Dimensional control

Tables 2a and 2b set permissible deviations from nominal diameter for rods in the as-moulded condition and for rods in ground or turned condition. Table 3 limits departure from straightness as a function of rod length.

In practice, these limits are what a quality inspector uses to accept or reject a batch, and they also tell a machinist how much material is available for finishing.

Property requirements

Table 4 gives the key property requirements by type, including:

• flexural strength perpendicular to laminations
• axial compressive strength
• breakdown voltage at 90 °C in oil parallel to laminations
• insulation resistance after immersion in water
• thermal endurance
• water absorption
• density
• flammability

The table also identifies the test method in IEC 61212-2 for each property. This is important because it ties the requirement to a specific test procedure, so different laboratories can check the same property in the same way.

Type selection information

Table 1 lists the rod types and their distinguishing characteristics, such as tracking resistance, mechanical strength, stability in humidity, elevated-temperature performance, and flame resistance. It also distinguishes the weave of the reinforcement where relevant.

That table is useful when choosing between resin-reinforcement combinations for service conditions, but the standard still expects the user to judge suitability against the actual application.

Notes on testing and interpretation

The flammability note explains that the small-scale laboratory test is mainly for monitoring production consistency. The table also shows that bracketed thermal endurance values are typical guidance, not requirements.

What terms does SIST EN 61212-3-3:2007 define?

SIST EN 61212-3-3:2007 defines or uses several key terms in a specific way:

• Round laminated moulded rod - a rod made by rolling impregnated layers on a mandrel, curing them in a cylindrical mould under heat and pressure, then grinding to size.
• Resin - the thermosetting base material used in the rod, identified in the designation by a two-letter code.
• Reinforcement - the layered material used with the resin, such as woven cotton cloth or woven glass cloth.
• Designation - the full coded description of the rod type, dimensions, and finish used for ordering and identification.
• Finish - the condition of the outside diameter, either as produced or ground/turned.
• Thermal endurance (TI) - the thermal endurance index used in Table 4 to classify resistance to heat ageing.

Who uses SIST EN 61212-3-3:2007?

SIST EN 61212-3-3:2007 is used by manufacturers of electrical insulating materials, test laboratories, equipment designers, quality managers, and buyers. It supports material selection, product designation, incoming inspection, type testing, and supplier qualification.

It is especially relevant in electrical, electronic, and mechanical applications where rigid laminated rods are machined or fitted into insulating parts. Users also rely on it when comparing grades for strength, electrical performance, humidity resistance, or flame resistance.

What changed in SIST EN 61212-3-3:2007 from the previous edition?

SIST EN 61212-3-3:2007 supersedes EN 61212-3-3:1995. The stated changes are:

• application use and safety statements were added
• the document was reformatted to current IEC format
• type EP GC 43 was added

Which standards are used with SIST EN 61212-3-3:2007?

SIST EN 61212-3-3:2007 relies on these referenced standards:

• IEC 61212-1 - gives definitions, designations, and general requirements for the series.
• IEC 61212-2:2006 - gives the test methods used for diameter, straightness, and the property tests in Table 4.
• ISO 472 - provides the plastics vocabulary used for the term definitions.

Annex ZA maps these references to the corresponding European publications where applicable.

What does the SIST EN 61212-3-3:2007 document contain?

SIST EN 61212-3-3:2007 contains the material classification, designation rules, and property tables needed to specify round laminated moulded rods. It includes the table of rod types and their characteristic uses, two diameter tolerance tables, a straightness limit, and a property table linked to IEC 61212-2 test methods.

The document also includes the terminology needed to define the rod form and the finish condition. For practical work, that makes it a specification for ordering, testing, and confirming conformity of laminated moulded rods rather than a general description of insulating materials.

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Insulating materials - Industrial rigid round laminated tubes and rods based on thermosetting resins for electrical purposes -- Part 3: Specifications for individual materials -- Sheet 3: Round laminated moulded rods (IEC 61212-3-3:2006)Matériaux isolants - Tubes et barres industriels rigides, ronds, stratifiés, a base de résines thermodurcissables, a usages électriques -- Partie 3: Spécifications pour matériaux particuliers -- Feuille 3: Barres rondes, stratifiées, moulées (IEC 61212-3-3:2006)Isolierstoffe - Runde Rohre und Stäbe aus technischen Schichtpressstoffen auf der Basis warmhärtender Harze für elektrotechnische Zwecke -- Teil 3: Bestimmungen für einzelne Werkstoffe -- Blatt 3: Runde, formgepresste Stäbe (IEC 61212-3-3:2006)Ta slovenski standard je istoveten z:EN 61212-3-3:2006SIST EN 61212-3-3:2007en,de29.035.01Izolacijski materiali na splošnoInsulating materials in generalICS:SIST EN 61212-3-3:19981DGRPHãþDSLOVENSKI
STANDARDSIST EN 61212-3-3:200701-november-2007

EUROPEAN STANDARD EN 61212-3-3 NORME EUROPÉENNE
EUROPÄISCHE NORM October 2006
CENELEC European Committee for Electrotechnical Standardization Comité Européen de Normalisation Electrotechnique Europäisches Komitee für Elektrotechnische Normung
Central Secretariat: rue de Stassart 35, B - 1050 Brussels
© 2006 CENELEC -
All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 61212-3-3:2006 E
ICS 29.035.01 Supersedes EN 61212-3-3:1995
English version
Insulating materials -
Industrial rigid round laminated tubes and rods
based on thermosetting resins for electrical purposes
Part 3: Specifications for individual materials
Sheet 3: Round laminated moulded rods (IEC 61212-3-3:2006)
Matériaux isolants -
Tubes et barres industriels rigides,
ronds, stratifiés, à base de résines thermodurcissables, à usages électriques Partie 3: Spécifications
pour matériaux particuliers
Feuille 3: Barres rondes,
stratifiées, moulées (CEI 61212-3-3:2006)
Isolierstoffe -
Runde Rohre und Stäbe aus technischen Schichtpressstoffen auf der Basis warmhärtender Harze
für elektrotechnische Zwecke
Teil 3: Bestimmungen
für einzelne Werkstoffe
Blatt 3: Runde, formgepresste Stäbe (IEC 61212-3-3:2006)
This European Standard was approved by CENELEC on 2006-09-01. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CENELEC member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CENELEC member into its own language and notified to the Central Secretariat has the same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom.

- 2 - Foreword The text of document 15/329/FDIS, future edition 2 of IEC 61212-3-3, prepared by IEC TC 15, Standards on specifications for electrical insulating materials, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 61212-3-3 on 2006-09-01. This European Standard supersedes EN 61212-3-3:1995. The main changes from EN 61212-3-3:1995 are as follows: added application use and safety statements. Reformatted document to bring it up to current IEC document format. Type EP GC 43 has been added. The following dates were fixed: – latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement
(dop)
2007-06-01 – latest date by which the national standards conflicting
with the EN have to be withdrawn
(dow)
2009-09-01 Annex ZA has been added by CENELEC. __________ Endorsement notice The text of the International Standard IEC 61212-3-3:2006 was approved by CENELEC as a European Standard without any modification. __________

- 3 - EN 61212-3-3:2006
Annex ZA
(normative)
Normative references to international publications with their corresponding European publications
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.
NOTE
When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD applies.
Publication Year Title EN/HD Year IEC 61212-1 - 1) Insulating materials - Industrial rigid round laminated tubes and rods based on thermosetting resins for electrical purposes Part 1: Definitions, designations and general requirements EN 61212-1 2006 2)
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 - -
ISO 472 - 1) Plastics - Vocabulary EN ISO 472 2001 2)
1) Undated reference.
2) Valid edition at date of issue.

INTERNATIONAL STANDARD IEC61212-3-3 Second edition2006-08 Insulating materials – Industrial rigid round laminated tubes and rods based on thermosetting resins for electrical purposes – Part 3: Specifications for individual materials – Sheet 3: Round laminated moulded rods
 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, SwitzerlandTelephone: [phone] Telefax: [phone] E-mail: [e-mail]
Web: www.iec.ch J For price, see current cataloguePRICE CODE
Commission Electrotechnique InternationaleInternational Electrotechnical Commission

– 2 – 61212-3-3  IEC:2006(E)
CONTENTS FOREWORD.3
1 Scope.5 2 Normative references.5 3 Terms and definitions.5 4 Designations and abbreviations.6 4.1 General.6 4.2 Designation.6 4.3 Abbreviations.6 5 Requirements.6
Table 1 – Types of round moulded rods.7 Table 2 – Permissible deviation from nominal diameter
of round moulded rods.8 Table 3 – Departure from straightness for round moulded rods.8 Table 4 – Properties of
round moulded rods.9

61212-3-3  IEC:2006(E) – 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 3: Round laminated moulded rods
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, employee
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