Electrotechnical equipment - Temperatures of touchable hot surfaces

IEC Guide 117:2010(E) provides guidance for assessing the risk, to any person, of a burn from contact with hot touchable surfaces of electrotechnical equipment. Establishes surface temperature limits, where such limits are required, and describes the maximum contact periods with a hot surface that any person may be subjected to without being exposed to a risk of burn. Curves of maximum temperatures versus contact times are described for different types of material with different types of surfaces. These temperature limit values shall be taken into consideration by technical committees in determining surface temperature limits in product standards.

General Information

Status
Published
Publication Date
12-Oct-2010
Technical Committee
Current Stage
PPUB - Publication issued
Start Date
15-Oct-2010
Completion Date
13-Oct-2010
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IEC GUIDE 117
®
Edition 1.0 2010-10

GUIDE


Electrotechnical equipment – Temperatures of touchable hot surfaces




IEC GUIDE 117:2010(E)

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IEC GUIDE 117
®
Edition 1.0 2010-10

GUIDE


Electrotechnical equipment – Temperatures of touchable hot surfaces


INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
PRICE CODE
U
ICS 29.020 ISBN 978-2-88912-219-6
® Registered trademark of the International Electrotechnical Commission

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– 2 – Guide 117 © IEC:2010(E)
CONTENTS
FOREWORD.4
INTRODUCTION.5
1 Scope.6
2 Normative references .6
3 Terms and definitions .7
4 Assessment of the risk of burning.8
4.1 Procedure .8
4.2 Identification of surfaces .8
4.2.1 Identification of hot functional surfaces.8
4.2.2 Identification of adjacent surfaces .8
4.2.3 Identification of handles or control knobs including keypads,
keyboards and the like.9
4.2.4 Identification of touchable surfaces.9
4.3 Task analysis .10
4.4 Measurement of the surface temperatures.10
4.5 Choice of applicable burn threshold.10
4.6 Comparison between surface temperature and burn threshold.10
4.7 Result of the risk assessment.11
5 Application of protective measures .
...

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