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Short-circuit currents – Calculation of effects –

Part 1: Definitions and calculation methods

Reference number IEC 60865-1:1993(E)

INTERNATIONAL STANDARD

IEC60865-1

Second edition1993-09

This English-language version is derived from the original bilingual publication by leaving out all French-language pages. Missing page numbers correspond to the French-language pages.

Copyright © International Electrotechnical Commission (IEC), Geneva, Switzerland. Allrights reserved. This copy has been made by Book Supply Bureau under license fromthe IEC. No resale of this document is permitted. No part of this document may becopied or reproduced in any form by any means (graphic, electronic or mechanical,including photocopying, recording, recording taping or information and retrievalsystem), nor made available on the internet, a public network, by satellite or otherwisewithout the prior written consent of the IEC.

Publication numbering

As from 1 January 1997 all IEC publications are issued with a designation in the 60000 series. For example, IEC 34-1 is now referred to as IEC 60034-1.

Consolidated editions

The IEC is now publishing consolidated versions of its publications. For example, edition numbers 1.0, 1.1 and 1.2 refer, respectively, to the base publication, the base publication incorporating amendment 1 and the base publication incorporating amendments 1 and 2.

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Short-circuit currents – Calculation of effects –

Part 1: Definitions and calculation methods

For price, see current catalogue

IEC 1993 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.

International Electrotechnical Commission, 3, rue de Varembé, PO Box 131, CH-1211 Geneva 20, SwitzerlandTelephone: +41 22 919 02 11 Telefax: +41 22 919 03 00 E-mail: inmail@iec.ch Web: www.iec.ch

INTERNATIONAL STANDARD

IEC60865-1

Second edition1993-09

XA Commission Electrotechnique InternationaleInternational Electrotechnical CommissionМеждународная Электротехническая Комиссия

PRICE CODE

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Page 64, tableau 2

Dans la troisième colonne, pour un court-circuit biphasé, au lieu de:

1,8

lire:

- (un tiret)

Page 74, figure 2

Sur la gauche des dessins, ajouter:

a)et b) respectivement.

Page 104, annexe A, article A.2

Remplacer la dernière ligne de l’équationexistante par la nouvelle ligne suivante:

Page 65, table 2

In the third column, for a line-to-line shortcircuit, instead of:

1,8

read:

- (dash)

Page 75, figure 2

Add, at the left-hand side of the drawings:

a)and b) respectively.

Page 105, annex A, clause A.2

Replace the last line of the existing equationby the following new line:

Publication 865-1 de la CEI(Deuxième édition 1993)

Courants de court-circuit -Calcul des effets

Partie 1: Définitions et méthodes de calcul

IEC Publication 865-1(Second edition 1993)

Short-circuit currents -Calculation of effects

Part 1: Definitions and calculation methods

C O R R I G E N D U M 1

2 arctan

- 2 arctan

(a/d) + 1b/d

a/db/d

+ arctan(a/d) -1

b/da/d • b/d

6

Mars 1995 March 1995

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