Voorbeeld PrevieEN 62305-1:2011 - 2 - Foreword The text of document 81/370/FDIS, future edition 2 of...

Nederlandse norm

NEN-EN-IEC 62305-1 (en)

Bliksembeveiliging - Deel 1: Algemene principes (IEC 62305-1:2010,MOD)

Protection against lightning - Part 1: General principles (IEC 62305-1:2010,MOD)

Vervangt NEN-EN-IEC 62305-1:2006; NEN-EN-IEC 62305-1:2006/C11:2006

ICS 29.020; 91.120.40

maart 2011

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Dit document is een voorbeeld van NEN / This document is a preview by NEN

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NEN-EN-IEC 62305-1

Als Nederlandse norm is aanvaard: - EN 62305-1:2011,IDT - IEC 62305-1:2010,MOD

Nederlands Elektrotechnisch Comité Normcommissie 363081 "Bliksembeveiliging (NEC 81)"

Apart from exceptions provided by the law, nothing from this publication may be duplicated and/or published by means of photocopy, microfilm, storage in computer files or otherwise, which also applies to full or partial processing, without the written consent of the Netherlands Standardization Institute.

The Netherlands Standardization Institute shall, with the exclusion of any other beneficiary, collect payments owed by third parties for duplication and/or act in and out of law, where this authority is not transferred or falls by right to the Reproduction Rights Foundation.

Although the utmost care has been taken with this publication, errors and omissions cannot be entirely excluded. The Netherlands Standardization Institute and/or the members of the committees therefore accept no liability, not even for direct or indirect damage, occurring due to or in relation with the application of publications issued by the Netherlands Standardization Institute.

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NEN-EN-IEC 62305-1

Nederlands voorwoord

Voor de in deze norm vermelde normatieve verwijzingen bestaan in Nederland de volgende equivalenten:

vermelde norm Nederlandse norm titel IEC 62305-2:2010 - - IEC 62305-3:2010 - - IEC 62305-4:2010 - - Voorbeeld

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EUROPEAN STANDARD EN 62305-1 NORME EUROPÉENNE

EUROPÄISCHE NORM February 2011

CENELEC European Committee for Electrotechnical Standardization

Comité Européen de Normalisation Electrotechnique Europäisches Komitee für Elektrotechnische Normung

Management Centre: Avenue Marnix 17, B - 1000 Brussels

© 2011 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.

Ref. No. EN 62305-1:2011 E

ICS 29.020; 91.120.40 Supersedes EN 62305-1:2006 + corr. Nov.2006

English version

Protection against lightning - Part 1: General principles

(IEC 62305-1:2010, modified) Protection contre la foudre - Partie 1: Principes généraux (CEI 62305-1:2010, modifiée)

Blitzschutz - Teil 1: Allgemeine Grundsätze (IEC 62305-1:2010, modifiziert)

This European Standard was approved by CENELEC on 2011-01-13. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CENELEC member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CENELEC member into its own language and notified to the Central Secretariat has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom.

NEN-EN-IEC 62305-1:2011

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EN 62305-1:2011 - 2 -

Foreword

The text of document 81/370/FDIS, future edition 2 of IEC 62305-1, prepared by IEC TC 81, Lightning protection, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 62305-1 on 2011-01-13.

This European Standard supersedes EN 62305-1:2006 + corr. Nov.2006.

This EN 62305-1:2011 includes the following significant technical changes with respect to EN 62305-1:2006 + corr. Nov.2006:

1) It no longer covers protection of services connected to structures.

2) Isolated interfaces are introduced as protection measures to reduce failure of electric and electronic systems.

3) First negative impulse current is introduced as a new lightning parameter for calculation purposes.

4) Expected surge overcurrents due to lightning flashes have been more accurately specified for low voltage power systems and for telecommunication systems.

Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and CENELEC shall not be held responsible for identifying any or all such patent rights.

The following dates were fixed:

– latest date by which the EN has to be implemented at national level by publication of an identical national standard or by endorsement

(dop)

2011-10-13

– latest date by which the national standards conflicting with the EN have to be withdrawn

(dow)

2014-01-13

Annex ZA has been added by CENELEC.

__________

Endorsement notice

The text of the International Standard IEC 62305-1:2010 was approved by CENELEC as a European Standard without any modification.

In the official version, for Bibliography, the following notes have to be added for the standards indicated:

[1] IEC 60664-1:2007 NOTE Harmonized as EN 60664-1:2007 (not modified).

[2] IEC 61000-4-5 NOTE Harmonized as EN 61000-4-5.

[7] IEC 61643-1 NOTE Harmonized as EN 61643-11.

[8] IEC 61643-21 NOTE Harmonized as EN 61643-21.

__________

NEN-EN-IEC 62305-1:2011

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- 3 - EN 62305-1:2011

Annex ZA (normative)

Normative references to international publications with their corresponding European publications

The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.

NOTE When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD applies.

Publication Year Title EN/HD Year

IEC 62305-2 2010 Protection against lightning - Part 2: Risk management

EN 62305-2 2011

IEC 62305-3 2010 Protection against lightning - Part 3: Physical damage to structures and life hazard

EN 62305-3 2011

IEC 62305-4 2010 Protection against lightning - Part 4: Electrical and electronic systems within structures

EN 62305-4 2011

NEN-EN-IEC 62305-1:2011

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IEC 62305-1 Edition 2.0 2010-12

INTERNATIONAL STANDARD

Protection against lightning – Part 1: General principles

IEC

623

05-1

:201

0(E)

®

NEN-EN-IEC 62305-1:2011

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THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright © 2010 IEC, Geneva, Switzerland All rights reserved. Unless otherwise specified, 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 either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or your local IEC member National Committee for further information. IEC Central Office 3, rue de Varembé CH-1211 Geneva 20 Switzerland Email: [email protected] Web: www.iec.ch

About the IEC The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes International Standards for all electrical, electronic and related technologies. About IEC publications The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the latest edition, a corrigenda or an amendment might have been published. � Catalogue of IEC publications: www.iec.ch/searchpub The IEC on-line Catalogue enables you to search by a variety of criteria (reference number, text, technical committee,…). It also gives information on projects, withdrawn and replaced publications. � IEC Just Published: www.iec.ch/online_news/justpub Stay up to date on all new IEC publications. Just Published details twice a month all new publications released. Available on-line and also by email. � Electropedia: www.electropedia.org The world's leading online dictionary of electronic and electrical terms containing more than 20 000 terms and definitions in English and French, with equivalent terms in additional languages. Also known as the International Electrotechnical Vocabulary online. � Customer Service Centre: www.iec.ch/webstore/custserv If you wish to give us your feedback on this publication or need further assistance, please visit the Customer Service Centre FAQ or contact us: Email: [email protected] Tel.: +41 22 919 02 11 Fax: +41 22 919 03 00

NEN-EN-IEC 62305-1:2011

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IEC 62305-1 Edition 2.0 2010-12

INTERNATIONAL STANDARD

Protection against lightning – Part 1: General principles

INTERNATIONAL ELECTROTECHNICAL COMMISSION XB ICS 29.020; 91.120.40

PRICE CODE

ISBN 978-2-88912-280-6

® Registered trademark of the International Electrotechnical Commission

®

NEN-EN-IEC 62305-1:2011

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– 2 – 62305-1 IEC:2010(E)

CONTENTS

FOREWORD ................................................................................................................. 5 INTRODUCTION ............................................................................................................ 7 1 Scope ..................................................................................................................... 8 2 Normative references ............................................................................................... 8 3 Terms and definitions ............................................................................................... 8 4 Lightning current parameters .................................................................................. 14 5 Damage due to lightning ......................................................................................... 14

5.1 Damage to a structure.................................................................................... 14 5.1.1 Effects of lightning on a structure ........................................................ 14 5.1.2 Sources and types of damage to a structure ......................................... 16

5.2 Types of loss ................................................................................................. 16 6 Need and economic justif ication for lightning protection ............................................ 18

6.1 Need for lightning protection .......................................................................... 18 6.2 Economic justif ication of lightning protection ................................................... 19

7 Protection measures............................................................................................... 19 7.1 General ........................................................................................................ 19 7.2 Protection measures to reduce injury of liv ing beings by electric shock ............. 19 7.3 Protection measures to reduce physical damage .............................................. 20 7.4 Protection measures to reduce failure of electrical and electronic systems ........ 20 7.5 Protection measures selection ........................................................................ 20

8 Basic criteria for protection of structures.................................................................. 21 8.1 General ........................................................................................................ 21 8.2 Lightning protection levels (LPL) .................................................................... 21 8.3 Lightning protection zones (LPZ) .................................................................... 23 8.4 Protection of structures .................................................................................. 25

8.4.1 Protection to reduce physical damage and life hazard ........................... 25 8.4.2 Protection to reduce the failure of internal systems ............................... 26

Annex A (informative) Parameters of lightning current ................................................... 27 Annex B (informative) Time functions of the lightning current for analysis purposes ........ 38 Annex C (informative) Simulation of the lightning current for test purposes ..................... 44 Annex D (informative) Test parameters simulating the effects of lightning on LPS components ................................................................................................................. 48 Annex E (informative) Surges due to lightning at different installation points ................... 62 Bibliography ................................................................................................................ 67 Figure 1 – Connection between the various parts of IEC 62305 ......................................... 7 Figure 2 – Types of loss and corresponding risks resulting from different types of damage ....................................................................................................................... 18 Figure 3 – LPZ defined by an LPS (IEC 62305-3) ........................................................... 24 Figure 4 – LPZ defined by an SPM (IEC 62305-4) .......................................................... 25 Figure A.1 – Definitions of impulse current parameters (typically T2 < 2 ms) .................... 27 Figure A.2 – Definitions of long duration stroke parameters (typically 2 ms <TLONG <1 s) ........................................................................................................................... 28

NEN-EN-IEC 62305-1:2011

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