Safeguards againts accidentally caused candle flame ignition for audio/video, communication and information technology equipment

IEC/TS 62441:2011 Introduces safeguards to reduce the likelihood of room flash-over as a result of accidental ignition of exterior housings of audio/video and information communication technology products likely to be used in the home, caused by a candle flame. This second edition of IEC 62441 cancels and replaces the first edition published in 2006 and constitutes a technical revision. This edition includes the following technical changes with respect to the previous edition:
- acceptance of wood with a minimum thickness as equivalent to V-1;
- interpretation information regarding vertical surfaces.

Mesures de protection contre l'embrasement accidentel dû à une flamme de bougie dans les équipements audio/vidéo, des technologies de la communication et de l'information

La CEI/TS 62441:2011 introduit des mesures de protection destinées à réduire les risques d'embrasement éclair d'une pièce dû à une flamme de bougie, résultant de l'embrasement accidentel de l'habillage extérieur des appareils audio/vidéo, des appareils de technologies de l'information et de la communication, utilisés généralement en milieu résidentiel. Cette deuxième édition de la CEI 62441 annule et remplace la première édition parue en 2006 et constitue une révision technique. Cette édition comprend les changements suivants par rapport à l'édition précédente:
- acceptation du bois avec une épaisseur minimum équivalente à V-1;
- information sur l'interprétation concernant les surfaces verticales.

General Information

Status
Published
Publication Date
09-Feb-2011
Current Stage
PPUB - Publication issued
Start Date
30-Apr-2011
Completion Date
10-Feb-2011
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IEC TS 62441:2011 - Safeguards againts accidentally caused candle flame ignition for audio/video, communication and information technology equipment
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IEC/TS 62441 ®
Edition 2.0 2011-02
TECHNICAL
SPECIFICATION
SPÉCIFICATION
TECHNIQUE
colour
inside
Safeguards against accidentally caused candle flame ignition
for audio/video, communication and information technology equipment

Mesures de protection contre l’embrasement accidentel dû à une flamme de
bougie dans les équipements audio/video, des technologies de la
communication et de l'information

IEC/TS 62441:2011
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IEC/TS 62441 ®
Edition 2.0 2011-02
TECHNICAL
SPECIFICATION
SPÉCIFICATION
TECHNIQUE
colour
inside
Safeguards against accidentally caused candle flame ignition
for audio/video, communication and information technology equipment

Mesures de protection contre l’embrasement accidentel dû à une flamme de
bougie dans les équipements audio/video, des technologies de la
communication et de l'information

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX L
ICS 35.260; 97.020 ISBN 978-2-88912-364-3

– 2 – TS 62441  IEC:2011
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 Warning for users . 7
5 Control of fire growth . 8
5.1 General . 8
5.2 Determination of candle flame accessible areas . 8
5.3 Test methodology . 9
5.3.1 Conditioning . 9
5.3.2 Positioning the individual item . 9
5.3.3 Ignition source . 10
5.4 Test for sustained flaming . 10
Bibliography . 11

Figure 1 – Examples of candle flame accessible areas . 9
Figure 2 – Positioning of the needle flame burner . 10

TS 62441  IEC:2011 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
SAFEGUARDS AGAINST ACCIDENTALLY
CAUSED CANDLE FLAME IGNITION
FOR AUDIO/VIDEO, COMMUNICATION
AND INFORMATION TECHNOLOGY EQUIPMENT

FOREWORD
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• the required support cannot be obtained for the publication of an International Standard,
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• The subject is still under technical development or where, for any other reason, there is
the future but no immediate possibility of an agreement on an International Standard.
Technical specifications are subject to review within three years of publication to decide
whether they can be transformed into International Standards.
IEC 62441, which is a technical specification, has been prepared by IEC technical committee
108: Safety of electronic equipment within the field of audio/video, information technology and
communication technology.
– 4 – TS 62441  IEC:2011
This second edition of IEC 62441 cancels and replaces the first edition published in 2006 and
constitutes a technical revision. This edition includes the following technical changes with
respect to the previous edition:
– acceptance of wood with a minimum thickness as equivalent to V-1;
– interpretation information regarding vertical surfaces.
The text of this technical specification is based on the following documents:
Enquiry draft Report on voting
108/391/DTS 108/412/RVC
Full information on the voting for the approval of this technical specification 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.
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– requirements proper and normative annexes: in roman type;
– compliance statements and test specifications: in italic type;
– notes/explanatory matter: in small roman type;
– terms that are defined in Clause 3: bold.
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related to the specific publication. At this date, the publication will be
• transformed into an International standard,
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
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colour printer.
TS 62441  IEC:2011 – 5 –
INTRODUCTION
The first version of this technical specification was discussed at the TC108 plenary meeting in
Matsue, Japan in October 2008. It was decided to extend the TS for another three year period
and to implement some changes as previously agreed in several TC108 meetings. The text of
this technical specification is based on the outcome of these discussions.
In line with SMB decision 135/20 and document AC/22/2009, it is anticipated that the next
step for this document would be a proposal for publication as an International Standard,
taking into account any further developments regarding the improvement of these
requirements.
It should be noted that the Fire Team of the HBSDT (Hazard based standard development
team) developed requirements on a Heat Release Rate Performance Test and recommended
a peak Heat Release Rate (pHRR) valu
...

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