EN 60676:2012
(Main)Industrial electroheating equipment - Test methods for direct arc furnaces
Industrial electroheating equipment - Test methods for direct arc furnaces
IEC 60676:2011 specifies test procedures, conditions and methods according to which the main parameters and the main operational characteristics of electric arc furnaces (EAF) operated either with alternating current (EAFac) or with direct current (EAFdc) with a capacity above 500 kg/heat are established. This third edition cancels and replaces the previous edition published in 2002 and constitutes a technical revision. Significant technical changes with respect to the previous edition are as follows: - Clause 1 (Scope and object) - types of furnaces are more clearly defined. - Clause 2 (Normative references) and Clause 3 (Terms and definitions) have been updated and completed. - New Clause 4 (Features of the EAFsystem) has been added; it mainly concentrates on the tests necessary for high-voltage / high-current electrical equipment in the installation. - Clause 5 (Type of tests and general conditions of their performance) and Clause 6 (Technical tests) have been modified according to today's requirements for safe operation of an EAF.
Industrielle Elektrowärmeanlagen - Prüfverfahren für Lichtbogen-Schmelzöfen
Chauffage électrique industriel - Méthodes d'essai des fours à arc direct
La CEI 60676:2011 spécifie les procédures, les conditions et les méthodes d'essai suivant lesquelles sont établis les principaux paramètres et les principales caractéristiques de fonctionnement des fours à arc électrique (FAE), soit à courant alternatif (FAE c.a.), soit à courant continu (FAE c.c.), dont la capacité est supérieure à 500 kg/charge de fusion. Cette troisième édition annule et remplace la précédente édition parue en 2002 et constitue une révision technique. Les principales modifications techniques par rapport à l'édition précédente sont les suivantes: - Article 1 (Domaine d'application et objet) - les types de fours sont définis de façon plus claire. - L'Article 2 (Références normatives) et l'Article 3 (Termes et définitions) ont été mis à jour et complétés. - Un nouvel Article 4 (Caractéristiques des fours à arc électrique (FAE)) a été ajouté; il se concentre principalement sur les essais nécessaires pour l'appareillage électrique à haute tension/haute intensité de l'installation. - L'Article 5 (Type des essais et conditions générales d'exécution) et l'Article 6 (Essais techniques) ont été modifiés pour s'adapter aux exigences actuelles relatives à la sécurité de fonctionnement d'un four à arc électrique.
Oprema za industrijsko električno ogrevanje - Preskusne metode za peči z odkritim oblokom
Ta mednarodni standard določa preskusne postopke, pogoje in metode, po katerih so vzpostavljeni glavni parametri in glavne značilnosti peči z odkritim električnim oblokom (EAF), ki delujejo z izmeničnim tokom (EAFac) ali enosmernim tokom (EAFdc) z zmogljivostjo nad 500 kg/enoto toplote. Tehnologija EAF se uporablja tudi za peči, v katerih se tekoča kovina vzdržuje na visoki temperaturi ali segreje na temperaturo vlivanja (npr. v ponovčni peči (LF), ki deluje z izmeničnim tokom). Preskusne metode za nekatere vrste posebne opreme, npr. nadzorovane usmernike za EAFdc, so zajete v standardu IEC 60146-1-1. Preskusne metode za peči z zakritim oblokom (SAF) so zajete v standardu IEC 60683.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-maj-2012
2SUHPD]DLQGXVWULMVNRHOHNWULþQRRJUHYDQMH3UHVNXVQHPHWRGH]DSHþL]
RGNULWLPREORNRP
Industrial electroheating equipment - Test methods for direct arc furnaces
Industrielle Elektrowärmeanlagen - Prüfverfahren für Lichtbogen-Schmelzöfen
Chauffage électrique industriel - Méthodes d'essai des fours à arc direct
Ta slovenski standard je istoveten z: EN 60676:2012
ICS:
25.180.10 (OHNWULþQHSHþL Electric furnaces
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD
EN 60676
NORME EUROPÉENNE
February 2012
EUROPÄISCHE NORM
ICS 25.180.10 Supersedes EN 60676:2002
English version
Industrial electroheating equipment -
Test methods for direct arc furnaces
(IEC 60676:2011)
Chauffage électrique industriel - Industrielle Elektrowärmeanlagen -
Méthodes d'essai des fours à arc direct Prüfverfahren für Lichtbogen-Schmelzöfen
(CEI 60676:2011) (IEC 60676:2011)
This European Standard was approved by CENELEC on 2011-12-13. 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 CEN-CENELEC Management Centre 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 CEN-CENELEC Management Centre 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, Turkey and the United Kingdom.
CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
Management Centre: Avenue Marnix 17, B - 1000 Brussels
© 2012 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 60676:2012 E
Foreword
The text of document 27/816/FDIS, future edition 3 of IEC 60676, prepared by IEC/TC 27 "Industrial
electroheating" was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as
The following dates are fixed:
(dop) 2012-09-13
• latest date by which the document has
to be implemented at national level by
publication of an identical national
standard or by endorsement
• latest date by which the national (dow) 2014-12-13
standards conflicting with the
document have to be withdrawn
This document supersedes EN 60676:2002.
– Clause 1 (Scope and object) – types of furnaces are more clearly defined.
– Clause 2 (Normative references) and Clause 3 (Terms and definitions) have been updated and
completed.
– New Clause 4 (Features of the EAFsystem) has been added; it mainly concentrates on the tests
necessary for high-voltage / high-current electrical equipment in the installation.
– Clause 5 (Type of tests and general conditions of their performance) and Clause 6 (Technical tests)
have been modified according to today’s requirements for safe operation of an EAF.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC [and/or CEN] shall not be held responsible for identifying any or all such patent
rights.
Endorsement notice
The text of the International Standard IEC 60676:2011 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:
[2] IEC 60146-1-1:2009 NOTE Harmonized as EN 60146-1-1:2010 (not modified).
[3] IEC 60683:2011 NOTE Harmonized as EN 60683:2012 (not modified).
- 3 - EN 60676:2012
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. 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 60398 1999 Industrial electroheating installations - EN 60398 1999
General test methods
IEC 60519-1 - Safety in electroheating installations - EN 60519-1 -
Part 1: General requirements
IEC 60519-4 - Safety in electroheat installations - EN 60519-4 -
Part 4: Particular requirements for arc furnace
installations
IEC 60676 ®
Edition 3.0 2011-11
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Industrial electroheating equipment – Test methods for direct arc furnaces
Chauffage électrique industriel – Méthodes d’essai des fours à arc direct
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX R
ICS 25.180.10 ISBN 978-2-88912-725-2
– 2 – 60676 © IEC:2011
CONTENTS
FOREWORD . 3
1 Scope and object . 5
2 Normative references . 5
3 Terms and definitions . 5
4 Features of the EAF system . 9
4.1 General . 9
4.2 Electrical assembly of EAF . 9
4.3 Furnace construction . 9
4.4 Water cooling . 10
5 Type of tests and general conditions of their performance . 10
5.1 General . 10
5.2 List of tests during cold and hot state . 10
6 Technical tests . 11
6.1 Electrical insulation of high-current system . 11
6.1.1 General . 11
6.1.2 Insulation resistance . 11
6.2 Cooling water system . 11
6.3 Electrode motion speed . 12
6.4 Short-circuit test procedures. 12
6.4.1 General . 12
6.4.2 High current system: resistance and reactance of EAFac . 12
6.4.3 Test procedures . 12
6.4.4 Asymmetry factor. 16
6.5 Main characteristics of EAF during production . 16
6.5.1 General . 16
6.5.2 Test procedures . 16
6.6 Electrode consumption . 17
6.7 Phase rotation . 18
6.8 EAF – Rated capacity . 18
Bibliography . 19
Figure 1 – Wiring diagram for measuring electrical data of the high current system to
determine the resistance and reactance values . 13
60676 © IEC:2011 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
INDUSTRIAL ELECTROHEATING EQUIPMENT –
TEST METHODS FOR DIRECT ARC FURNACES
FOREWORD
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all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
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between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
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8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 60676 has been prepared by IEC technical committee 27:
Industrial electroheating.
This third edition cancels and replaces the previous edition published in 2002 and constitutes
a technical revision.
Significant technical changes with respect to the previous edition are as follows:
– Clause 1 (Scope and object) – types of furnaces are more clearly defined.
– Clause 2 (Normative references) and Clause 3 (Terms and definitions) have been updated
and completed.
– New Clause 4 (Features of the EAFsystem) has been added; it mainly concentrates on the
tests necessary for high-voltage / high-current electrical equipment in the installation.
– Clause 5 (Type of tests and general conditions of their performance) and Clause 6
(Technical tests) have been modified according to today’s requirements for safe operation
of an EAF.
– 4 – 60676 © IEC:2011
The text of this standard is based on the following documents:
FDIS Report on voting
27/816/FDIS 27/837/RVD
Full information on the voting for the approval of this s
...
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