IEC GUIDE 111:2004
(Main)Electrical high-voltage equipment in high-voltage substations - Common recommendations for product standards
Electrical high-voltage equipment in high-voltage substations - Common recommendations for product standards
Horizontal publication giving guidance for the harmonization of product and system standards within substations where the highest voltage for equipment is higher than 1 kV. Contains recommendations for common specifications for all HV substation product standards, each of which is augmented by the technical background specific to each TC, which naturally retains freedom in its technical choices. For use by TCs involved in high-voltage (HV) substation systems, such as TCs 13, 14, 17, 20, 22, 28, 32, 33, 36, 37, 38, 57, 95 and 99.
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Standards Content (Sample)
INTERNATIONAL
GUIDE
ELECTROTECHNICAL
111
COMMISSION
Second edition
2004-07
Electrical high-voltage equipment
in high-voltage substations –
Common recommendations
for product standards
Reference number
IEC Guide 111:2004(E)
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INTERNATIONAL
GUIDE
ELECTROTECHNICAL
111
COMMISSION
Second edition
2004-07
Electrical high-voltage equipment
in high-voltage substations –
Common recommendations
for product standards
© IEC 2004 – 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.
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Telephone: +41 22 919 02 11 Telefax: +41 22 919 03 00 E-mail: inmail@iec.ch Web: www.iec.ch
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For price, see current catalogue
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– 2 – Guide 111 ¤ IEC:2004(E)
CONTENTS
FOREWORD.4
INTRODUCTION.5
1 Scope.6
2 Reference documents.6
3 Guidance for the “Normative references” clause in product standards.8
4 Guidance for the “Definitions” clause in product standards .8
5 Environmental conditions.8
5.1 General.8
5.2 Normal environmental conditions .9
5.3 Special environmental conditions .10
6 Ratings.11
6.1 General.11
6.2 Highest voltage for equipment.11
6.3 Rated insulation levels.12
6.4 Rated frequency.12
6.5 Rated current.12
6.6 Rated short-time withstand current.12
6.7 Rated peak withstand current.12
6.8 Rated duration of short circuit .13
6.9 Rated supply voltage of auxiliary and control circuits .13
6.10 Rated supply frequency of auxiliary and control circuits .13
7 Design and construction.13
7.1 Requirements for liquids and gases in equipment.13
7.2 Earthing of equipment.14
7.3 Low-voltage part of equipment .14
7.4 Marking.14
7.5 Degrees of protection by enclosures .15
7.6 Creepage distances.15
7.7 Fire hazard.15
7.8 Noise level.15
7.9 Electromagnetic compatibility (EMC) .15
7.10 Mechanical stresses on terminals .
...
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