EN 60695-10-3:2016

Fire hazard testing - Part 10-3: Abnormal heat - Mould stress relief distortion test

Specifies the mould stress relief distortion test as a test method for use by product committees. It is applicable to electrotechnical equipment including parts made from polymeric materials. This test is intended to simulate the effects caused by the relieving of moulding stresses by conditioning the product or part at a temperature higher than the maximum normal operating temperature and observing the nature of the resulting changes. Has the status of a basic safety publication in accordance with IEC Guide 104.

Prüfungen zur Beurteilung der Brandgefahr - Teil 10-3: Unübliche Wärme - Prüfung auf Verformung durch Abbau von Formspannungen

Essais relatifs aux risques du feu - Partie 10-3 : Chaleur anormale - Essai de déformation par réduction des contraintes de moulage

L'IEC 60695-10-3:2016 spécifie un essai de déformation par réduction des contraintes de moulage. Elle est applicable aux matériels électrotechniques, y compris les parties composées de matériaux polymères. Cette méthode d'essai est destinée à évaluer les effets provoqués par la réduction des contraintes résiduelles induites par traitement, se produisant dans un assemblage polymère moulé d'un produit final. Cette réduction de contraintes se produit lorsque l'échantillon (sous ou hors tension) est exposé au conditionnement à une température définie pendant une période de temps définie. L'éprouvette d'essai est considérée comme ayant satisfait à l'essai si, après le conditionnement à température ambiante, elle satisfait aux critères d'essai définis. La présente publication fondamentale de sécurité est essentiellement destinée à être utilisée par les comités d'études dans le cadre de l'élaboration de normes conformément aux principes établis dans le Guide IEC 104 et le Guide ISO/IEC 51. Elle n'est pas destinée à être utilisée par les fabricants ou les organismes de certification. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente: - Références mises à jour; - Matériel mis à jour; - Termes et définitions ajoutés; - et Bibliographie ajoutée. Mots-clés: Risques du feu, Chaleur anormale, l'ingénierie de la sécurité incendie, déformation par réduction des contraintes de moulage

Preskušanje požarne ogroženosti - 10-3. del: Nenormalna toplota - Sproščanje obremenitve po porušitvenem preskusu odlitka (IEC 60695-10-3:2016)

Določa sproščanje obremenitve po porušitvenem preskusu odlitka kot preskusno metodo, ki jo uporabljajo tehnični odbori. Uporablja se za elektrotehnično opremo, vključno z deli, ki so izdelani iz polimernih materialov. Namen tega preskusa je simulacija vplivov, ki jih povzroči sproščanje obremenitev odlitka pri obdelavi izdelka ali njegovega dela pri temperaturi, ki je višja od najvišje običajne delovne temperature, in opazovanje lastnosti sprememb, ki so posledica teh vplivov. Ta standard ima status osnovne varnostne publikacije v skladu z vodilom 104 Mednarodne elektrotehniške komisije.

General Information

• Status: Published
• Publication Date: 10-Nov-2016
• Withdrawal Date: 11-Oct-2019
• ICS: 13.220.40 - Ignitability and burning behaviour of materials and products
• ICS: 29.020 - Electrical engineering in general
• Technical Committee: CLC/SR 89 - Fire hazard testing
• Drafting Committee: IEC/TC 89 - IEC_TC_89
• Current Stage: 6060 - Document made available - Publishing
• Start Date: 11-Nov-2016
• Completion Date: 11-Nov-2016
• Directive: 2006/95/EC - Directive 2006/95/EC of the European Parliament and of the Council of 12 December 2006 on the harmonisation of the laws of Member States relating to electrical equipment designed for use within certain voltage limits (codified version)
• Ref Project: SIST EN 60695-10-3:2017 - Fire hazard testing - Part 10-3: Abnormal heat - Mould stress relief distortion test (IEC 60695-10-3:2016)

Relations

• Replaces: EN 60695-10-3:2002 - Fire hazard testing - Part 10-3: Abnormal heat - Mould stress relief distortion test
• Effective Date: 05-May-2015

Overview

EN 60695-10-3:2016 (IEC 60695-10-3:2016) - Fire hazard testing - Part 10-3: Abnormal heat - Mould stress relief distortion test - specifies a test method to simulate and evaluate the effects of relieving residual moulding stresses in polymeric parts of electrotechnical equipment. The test conditions involve conditioning a product or part at a temperature higher than the maximum normal operating temperature and then observing deformation or other changes after return to room temperature. EN 60695-10-3 is a basic safety publication (IEC Guide 104) and was adopted by CENELEC as a European Standard.

Key topics and requirements

• Scope and purpose: Evaluate distortion caused by relief of process-induced moulding stresses in moulded polymeric assemblies; intended primarily for inclusion by product technical committees into product specifications.
• Test composition: Defined conditioning at a specified elevated temperature for a specified period; inspection of specimens after conditioning and cooling to determine compliance with test criteria.
• Apparatus and measurement:
  • Heating oven (single-chamber ovens referenced via IEC 60216-4-1)
  • Temperature measuring equipment to ensure accurate conditioning
• Specimens and conditioning: Guidance on specimen selection, preparation and conditioning regimes (parts exposed to uniform or varying operating temperatures are addressed).
• Test procedure and setup: Steps for conditioning, test setup and observation of distortion or other effects.
• Criteria and reporting: Pass/fail criteria for continued compliance with relevant product specifications, and required information for test reports.
• Normative context: Uses terminology and safety principles aligned with IEC 60695-4 and IEC Guide 104.

Practical applications and users

• Primary users: Technical and standards committees preparing product-specific safety standards; this document is intended as a normative reference to be invoked in product standards.
• Secondary users (when referenced by product standards):
  • Product designers and R&D teams assessing thermal stability of moulded enclosures and polymer parts under abnormal heat
  • Test laboratories performing mould stress relief distortion assessments when specified by a product standard
  • Compliance engineers integrating abnormal heat considerations into fire hazard assessments
• Use cases:
  • Verifying that a device enclosure or polymer component does not distort after extended exposure to elevated operating temperatures
  • Supporting fire-hazard evaluations where relief of moulding stress could change component geometry and affect safety

Related standards

• IEC/EN 60695-10-2 (Abnormal heat - Ball pressure test)
• IEC 60695-4 (Fire test terminology)
• IEC 60216-4-1 (Thermal endurance ovens)
• IEC Guide 104 (Use of basic safety publications)
• ISO 13943, ISO/IEC Guide 51 (relevant fire-safety vocabulary and safety principles)

Keywords: EN 60695-10-3, mould stress relief distortion test, abnormal heat testing, fire hazard testing, polymeric materials, electrotechnical equipment.

Standards Content (Sample)

SLOVENSKI STANDARD
01-januar-2017
1DGRPHãþD
SIST EN 60695-10-3:2002
3UHVNXãDQMHSRåDUQHRJURåHQRVWLGHO1HQRUPDOQDWRSORWD6SURãþDQMH
REUHPHQLWYHSRSRUXãLWYHQHPSUHVNXVXRGOLWND,(&
Fire hazard testing - Part 10-3: Abnormal heat - Mould stress relief distortion test (IEC
60695-10-3:2016)
Prüfungen zur Beurteilung der Brandgefahr - Teil 10-3: Unübliche Wärme - Prüfung auf
Verformung durch Abbau von Formspannungen
Essais relatifs aux risques du feu - Partie 10-3 : Chaleur anormale - Essai de
déformation par réduction des contraintes de moulage
Ta slovenski standard je istoveten z: EN 60695-10-3:2016
ICS:
13.220.40 Sposobnost vžiga in Ignitability and burning
obnašanje materialov in behaviour of materials and
proizvodov pri gorenju products
29.020 Elektrotehnika na splošno Electrical engineering in
general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN 60695-10-3

NORME EUROPÉENNE
EUROPÄISCHE NORM
November 2016
ICS 29.020 Supersedes EN 60695-10-3:2002
English Version
Fire hazard testing - Part 10-3: Abnormal heat - Mould stress
relief distortion test
(IEC 60695-10-3:2016)
Essais relatifs aux risques du feu - Partie 10-3 : Chaleur Prüfungen zur Beurteilung der Brandgefahr - Teil 10-3:
anormale - Essai de déformation par réduction des Unübliche Wärme - Prüfung auf Verformung durch Abbau
contraintes de moulage von Formspannungen
(IEC 60695-10-3:2016) (IEC 60695-10-3:2016)
This European Standard was approved by CENELEC on 2016-10-12. 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 CEN-CENELEC
Management Centre 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 CEN-CENELEC Management Centre has the
same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2016 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 60695-10-3:2016 E
European foreword
The text of document 89/1328/FDIS, future edition 2 of IEC 60695-10-3, prepared by IEC/TC 89 "Fire
hazard testing" was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as EN
60695-10-3:2016.
The following dates are fixed:
(dop) 2017-07-12
• latest date by which the document has to be
implemented at national level by
publication of an identical national
standard or by endorsement
• latest date by which the national (dow) 2019-10-12
standards conflicting with the
document have to be withdrawn
This document supersedes EN 60695-10-3:2002.

Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC [and/or CEN] shall not be held responsible for identifying any or all such
patent rights.
Endorsement notice
The text of the International Standard IEC 60695-10-3:2016 was approved by CENELEC as a
European Standard without any modification.
In the official version, for Bibliography, the following notes have to be added for the standards indicated:

IEC 60695-1-10 NOTE Harmonized as EN 60695-1-10.
IEC 60695-1-11 NOTE Harmonized as EN 60695-1-11.

Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
NOTE 1 When an International Publication has been modified by common modifications, indicated by (mod), the relevant

EN/HD applies.
NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is available here:
www.cenelec.eu.
Publication Year Title EN/HD Year
IEC 60050 series International Electrotechnical Vocabulary - series
IEC 60216-4-1 -  Electrical insulating materials - Thermal EN 60216-4-1 -
endurance properties -- Part 4-1: Ageing
ovens - Single-chamber ovens
IEC 60695-4 2012 Fire hazard testing -- Part 4: Terminology EN 60695-4 2012
concerning fire tests for electrotechnical
products
IEC Guide 104 -  The preparation of safety publications and - -
the use of basic safety publications and
group safety publications
ISO 13943 -  Fire safety - Vocabulary EN ISO 13943 -
ISO/IEC Guide 51 -  Safety aspects - Guidelines for their - -
inclusion in standards
IEC 60695-10-3 ®
Edition 2.0 2016-09
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
BASIC SAFETY PUBLICATION
PUBLICATION FONDAMENTALE DE SÉCURITÉ

Fire hazard testing –
Part 10-3: Abnormal heat – Mould stress relief distortion test

Essais relatifs aux risques du feu –

Partie 10-3: Chaleur anormale – Essai de déformation par réduction des

contraintes de moulage
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 13.220.40; 29.020 ISBN 978-2-8322-3559-1

– 2 – IEC 60695-10-3:2016  IEC 2016
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative references. 6
3 Terms and definitions . 7
4 General description of the test . 7
5 Test apparatus . 7
5.1 Heating oven . 7
5.2 Temperature measuring equipment . 8
6 Test specimens . 8
7 Conditioning . 8
8 Test procedure . 8
8.1 General . 8
8.2 Parts exposed to uniform maximum operating temperatures . 8
8.3 Parts exposed to variations in operating temperatures . 9
8.4 Test setup . 9
9 Test criteria . 9
10 Information to be given in the relevant product specification . 9
11 Test report. 10
Bibliography . 11

IEC 60695-10-3:2016  IEC 2016 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
FIRE HAZARD TESTING –
Part 10-3: Abnormal heat –
Mould stress relief distortion test

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 itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
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 60695-10-3 has been prepared by IEC technical committee 89:
Fire hazard testing.
The text of this standard is based on the following documents:
FDIS Report on voting
89/1328/FDIS 89/1337/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.

– 4 – IEC 60695-10-3:2016  IEC 2016
It has the status of a basic safety publication in accordance with IEC Guide 104 and
ISO/IEC Guide 51.
This second edition of IEC 60695-10-3 cancels and replaces the first edition issued in 2002. It
constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) Updated references;
b) Updated equipment;
c) Added terms and definitions; and
d) Added Bibliography.
A list of all the parts in the IEC 60695 series, under the general title Fire hazard testing, can
be found on the IEC website.
The IEC 60695-10 series, under the general title Fire hazard testing, consists of the following
parts:
• Part 10-2: Abnormal heat – Ball pressure test
• Part 10-3: Abnormal heat – Mould stress relief distortion test
The committee has decided that the contents of this publication will remain unchanged until
the stability date indicated on the IEC website under "http://webstore.iec.ch" in the data
rel
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