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IEC TS 61000-5-8:2009

(Main)

Electromagnetic compatibility (EMC) - Part 5-8: Installation and mitigation guidelines - HEMP protection methods for the distributed infrastructure

Electromagnetic compatibility (EMC) - Part 5-8: Installation and mitigation guidelines - HEMP protection methods for the distributed infrastructure

IEC/TS 61000-5-8:2009(E) provides guidance on how to protect the distributed infrastructure (power, telecommunications, transportation and pipeline networks, etc.) from the threat of a high altitude electromagnetic pulse (HEMP). In order to accomplish this goal, it is necessary to describe the special aspects of the HEMP threat to electrical/electronic systems that are connected and distributed in nature. In particular a nuclear burst at a typical altitude of 100 km will illuminate the Earth to a ground radius from the point directly under the burst to a range of 1 100 km. This means that any distributed and connected infrastructure such as power or telecommunications will observe disturbances simultaneously over a wide area. This type of situation is not normally considered in the EMC or HEMP protection of facilities that are part of a distributed network as the impact of a local disturbance is usually evaluated only locally. IEC/TS 61000-5-8:2009 provides general information concerning the disturbance levels and protection methods for all types of distributed infrastructures. Due to its importance to all other parts of the infrastructure, the distributed electric power system (power substations, generation plants and control centres) and its protection are described in more detail. While the telecommunication system is also critical to most of the other distributed infrastructures, the protection of the telecommunication network from HEMP and other electromagnetic threats is covered by the work done by ITU-T. This technical specification forms Part 5-8 of IEC 61000. It has the status of a basic EMC publication in accordance with IEC Guide 107.

General Information

Status
Published
Publication Date
30-Aug-2009
ICS
01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
33.100.20 - Immunity
Technical Committee
SC 77C - High power transient phenomena
Current Stage
PPUB - Publication issued
Start Date
15-Dec-2009
Completion Date
31-Aug-2009
Ref Project

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IEC TS 61000-5-8:2009 - Electromagnetic compatibility (EMC) - Part 5-8: Installation and mitigation guidelines - HEMP protection methods for the distributed infrastructureIEC TS 61000-5-8:2009 - Electromagnetic compatibility (EMC) - Part 5-8: Installation and mitigation guidelines - HEMP protection methods for the distributed infrastructure
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IEC TS 61000-5-8:2009 - Electromagnetic compatibility (EMC) - Part 5-8: Installation and mitigation guidelines - HEMP protection methods for the distributed infrastructure
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IEC/TS 61000-5-8
®
Edition 1.0 2009-08
TECHNICAL
SPECIFICATION

colour
inside
BASIC EMC PUBLICATION

Electromagnetic compatibility (EMC) –
Part 5-8: Installation and mitigation guidelines – HEMP protection methods for
the distributed infrastructure


IEC/TS 61000-5-8:2009(E)

---------------------- Page: 1 ----------------------
THIS PUBLICATION IS COPYRIGHT PROTECTED
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All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by
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---------------------- Page: 2 ----------------------
IEC/TS 61000-5-8
®
Edition 1.0 2009-08
TECHNICAL
SPECIFICATION

colour
inside
BASIC EMC PUBLICATION

Electromagnetic compatibility (EMC) –
Part 5-8: Installation and mitigation guidelines – HEMP protection methods for
the distributed infrastructure




INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
PRICE CODE
U
ICS 33.100.20 ISBN 978-2-88910-395-9
® Registered trademark of the International Electrotechnical Commission

---------------------- Page: 3 ----------------------
– 2 – 61000-5-8 © IEC:2009(E)
CONTENTS
FOREWORD.4
INTRODUCTION.6
1 Scope.7
2 Normative references .7
3 Terms and definitions .8
4 General introduction .10
5 Description of the distributed infrastructure .10
6 Spatial variation of HEMP environments .11
6.1 Early-time (E1) HEMP spatial variations .11
6.2 Intermediate-time (E2) HEMP spatial variations.13
6.3 Late-time (E3) HEMP spatial variations .13
7 Implications for HEMP coupling to extended conductors .13
7.1 General .
...

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