IEC 60695-10-3:2016

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

IEC 60695-10-3:2016 specifies a mould stress relief distortion test. It is applicable to electrotechnical equipment including parts made from polymeric materials. This test method is intended to evaluate the effects caused by relief of the residual process-induced stress, set in a moulded polymeric assembly of an end product. This stress relief occurs when the sample (energized or not), is exposed to conditioning at a defined temperature for a defined period of time. The test specimen is considered to have satisfactorily withstood the test if, after conditioning to room temperature, it meets defined test criteria. This basic safety publication is primarily intended for use by technical committees in the preparation of standards in accordance with the principles laid down in IEC Guide 104 and ISO/IEC Guide 51. It is not intended for use by manufacturers or certification bodies. 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:
- Updated references;
- Updated equipment;
- Added terms and definitions;
- and added Bibliography. Key words: Fire Hazard, Abnormal Heat, Fire Safety Engineering, 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

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

General Information

• Status: Published
• Publication Date: 06-Sep-2016
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• ICS: 13.220.40 - Ignitability and burning behaviour of materials and products
• ICS: 29.020 - Electrical engineering in general
• Technical Committee: TC 89 - Fire hazard testing
• Drafting Committee: WG 12 - TC 89/WG 12
• Current Stage: PPUB - Publication issued
• Start Date: 30-Sep-2016
• Completion Date: 07-Sep-2016

Relations

• Revises: IEC 60695-10-3:2002 - Fire hazard testing - Part 10-3: Abnormal heat - Mould stress relief distortion test
• Effective Date: 05-Sep-2023

Standards Content (Sample)

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
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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

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
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international co-operation on all questions concerning standardization in the electrical and electronic fields. To
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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
related to the specific publication. At this date, the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
INTRODUCTION
In the design of any electrotechnical product, the risk of abnormal heat and the potential
hazards associated with abnormal heat need to be considered. In this respect the objective of
component, circuit, and product design, as well as t
...