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EN IEC 60676:2024

(Main)

Industrial electroheating equipment - Test methods for direct arc furnaces

Industrial electroheating equipment - Test methods for direct arc furnaces

IEC 60676:2024 This document specifies the basic test procedures, conditions and methods for establishing the main performance parameters and the main operational characteristics of furnaces for direct arc heating, forming arcs between the electrode and metal, such as electric arc furnaces using alternating current (EAF AC) or direct current (EAF DC), and ladle furnaces (LF), with rated power level above 500 kVA . This fourth edition cancels and replaces the third edition published in 2011. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) The structure has been redrafted according to IEC 60398:2015. b) The scope has been redrafted. c) The terms/definitions, normative references and bibliography have been updated and completed. d) The test methods and content from IEC 60398:2015 have been confirmed, replaced, or complemented with regards to direct arc furnaces (EAF, LF). e) The annexes from IEC 60398:2015 have been confirmed, replaced, or complemented with regards to direct arc furnaces (EAF, LF).

Industrielle Elektrowärmeanlagen - Prüfverfahren für Lichtbogen-Schmelzöfen

Chauffage électrique industriel - Méthodes d'essai des fours à arc direct

L’IEC 60676:2024 spécifie les procédures, les conditions et les méthodes d'essai fondamentales pour établir les principaux paramètres de performance et les principales caractéristiques de fonctionnement des fours qui utilisent le chauffage par arc direct, qui forme des arcs entre l'électrode et le métal, tels que les fours à arc électrique à courant alternatif (EAF AC, Electric Arc Furnace using Alternating Current) ou à courant continu (EAF DC, Electric Arc Furnace using Direct Current), et les fours poches (LF, Ladle Furnace), avec un niveau de puissance assignée supérieur à 500 kVA. Cette quatrième édition annule et remplace la troisième édition parue en 2011. Cette édition constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente: a) la structure a été alignée sur l'IEC 60398:2015; b) le domaine d'application a été repris; c) les termes et définitions, les références normatives et la bibliographie ont été mis à jour et complétés; d) les méthodes d'essai et le contenu de l'IEC 60398:2015 ont été confirmés, remplacés ou complétés en ce qui concerne les fours à arc direct (FAE, LF); e) les annexes de l'IEC 60398:2015 ont été confirmées, remplacées ou complétées en ce qui concerne les fours à arc direct (FAE, LF). La version française de la norme a été soumise au vote parallèle.

Oprema za industrijsko električno ogrevanje - Preskusne metode za peči z odkritim oblokom (IEC 60676:2024)

Standard IEC 60676:2024 določa osnovne preskusne postopke, pogoje in metode za določanje glavnih parametrov zmogljivosti ter glavnih značilnosti delovanja peči za neposredno obločno gretje, ki tvorijo obloke med elektrodo in kovino, na primer električne obločne peči, ki uporabljajo izmenični tok (EAF AC) ali enosmerni tok (EAF DC), in ponovčne peči (LF) z ravnjo nazivne moči več kot 500 kVA.
Četrta izdaja razveljavlja in nadomešča tretjo izdajo, objavljeno leta 2011. Ta izdaja je tehnično popravljena izdaja.
Ta izdaja v primerjavi s prejšnjo vključuje naslednje pomembne tehnične spremembe:
a) struktura je bila preoblikovana v skladu s standardom IEC 60398:2015;
b) področje uporabe je bilo preoblikovano;
c) izrazi in definicije, zveze s standardi ter literatura so bili posodobljeni in dopolnjeni;
d) preskusne metode in vsebina iz standarda IEC 60398:2015 so bile potrjene, nadomeščene ali dopolnjene v zvezi s pečmi z odkritim oblokom (električne obločne peči, ponovčne peči);
e) dodatki iz standarda IEC 60398:2015 so bili potrjeni, nadomeščeni ali dopolnjeni v zvezi s pečmi z odkritim oblokom (električne obločne peči, ponovčne peči).

General Information

Status
Published
Publication Date
04-Apr-2024
ICS
25.180.10 - Electric furnaces
Technical Committee
CLC/SR 27 - Industrial electroheating equipment
Drafting Committee
IEC/TC 27 - IEC_TC_27
Current Stage
6060 - Document made available - Publishing
Start Date
05-Apr-2024
Due Date
30-Aug-2024
Completion Date
05-Apr-2024
Ref Project
SIST EN IEC 60676:2024 - Industrial electroheating equipment - Test methods for direct arc furnaces (IEC 60676:2024)

Relations

Replaces
EN 60676:2012 - Industrial electroheating equipment - Test methods for direct arc furnaces
Effective Date
20-Sep-2022

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SLOVENSKI STANDARD
01-junij-2024
Oprema za industrijsko električno ogrevanje - Preskusne metode za peči z
odkritim oblokom (IEC 60676:2024)
Industrial electroheating equipment - Test methods for direct arc furnaces (IEC
60676:2024)
Industrielle Elektrowärmeanlagen - Prüfverfahren für Lichtbogen-Schmelzöfen (IEC
60676:2024)
Chauffage électrique industriel - Méthodes d'essai des fours à arc direct (IEC
60676:2024)
Ta slovenski standard je istoveten z: EN IEC 60676:2024
ICS:
25.180.10 Električne peči Electric furnaces
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN IEC 60676

NORME EUROPÉENNE
EUROPÄISCHE NORM April 2024
ICS 25.180.10 Supersedes EN 60676:2012
English Version
Industrial electroheating equipment - Test methods for direct arc
furnaces
(IEC 60676:2024)
Chauffage électrique industriel - Méthodes d'essai des fours Industrielle Elektrowärmeanlagen - Prüfverfahren für
à arc direct Lichtbogen-Schmelzöfen
(IEC 60676:2024) (IEC 60676:2024)
This European Standard was approved by CENELEC on 2024-04-03. 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, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Türkiye and the United Kingdom.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2024 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 60676:2024 E
European foreword
The text of document 27/1181/FDIS, future edition 4 of IEC 60676, prepared by IEC/TC 27 "Industrial
electroheating and electromagnetic processing" was submitted to the IEC-CENELEC parallel vote and
approved by CENELEC as EN IEC 60676:2024.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2025-01-03
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2027-04-03
document have to be withdrawn
This document supersedes EN 60676:2012 and all of its amendments and corrigenda (if any).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.
Any feedback and questions on this document should be directed to the users’ national committee. A
complete listing of these bodies can be found on the CENELEC website.
Endorsement notice
The text of the International Standard IEC 60676:2024 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 standard indicated:
The Bibliography of EN 60398:2015 is applicable with the following addition:
IEC 60076 (series) NOTE Approved as EN 60076 (series)
IEC 60146-1-1 NOTE Approved as EN 60146-1-1
IEC 60683:2011 NOTE Approved as EN 60683:2012 (not modified)
IEC 61869 (series) NOTE Approved as EN IEC 61869 (series)
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements 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 1 Where an International Publication has been modified by common modifications, indicated by (mod), the
relevant EN/HD applies.
NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is available
here: www.cencenelec.eu.
Publication Year Title EN/HD Year
IEC 60398 2015 Installations for electroheating and EN 60398 2015
electromagnetic processing - General
performance test methods
IEC 60519-1 - Safety in installations for electroheating EN IEC 60519-1 -
and electromagnetic processing - Part 1:
General requirements
IEC 60519-4 2021 Safety in installations for electroheating EN IEC 60519-4 2022
and electromagnetic processing - Part 4:
Particular requirements for arc furnace
installations
ISO 13578 - Industrial furnaces, and associated - -
processing equipment - Safety
requirements for machinery and equipment
for production of steel by electric arc
furnaces
IEC 60676 ®
Edition 4.0 2024-02
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
INTERNATIONALE
ICS 25.180.10  ISBN 978-2-8322-8367-7

– 2 – IEC 60676:2024 © IEC 2024
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 7
2 Normative references . 7
3 Terms, definitions and abbreviated terms . 8
3.1 Terms and definitions . 8
3.2 Abbreviated terms . 12
4 Basic provisions for testing and test conditions . 13
4.1 Aim of testing . 13
4.2 Communication of test results . 13
4.3 Boundaries of the energy using system for testing . 13
4.3.1 General considerations . 13
4.3.2 Batch type installations . 13
4.3.3 Continuous type installations . 14
4.4 General requirements for testing . 14
4.5 Operating conditions during tests . 14
4.6 Environmental conditions during tests . 14
4.7 Supply voltage . 14
5 Comparing equipment or installations . 15
6 Measurements and charged material . 15
6.1 General . 15
6.2 Time resolution . 15
6.3 Frequency measurement . 15
6.4 Measurement of electrical data . 15
6.4.1 Supply voltage and current . 15
6.4.2 Voltage, current, electrical power and resistance . 15
6.4.3 Measurement positions . 16
6.5 Temperature measurement . 16
6.5.101 Dipping probes for liquid steel or slag . 16
6.6 Measurement of pressure, humidity or composition of fluids . 16
6.7 Charged material . 16
7 Numerical modelling . 17
8 Technical tests . 18
8.101 General . 18
8.102 Electrical insulation . 18
8.103 Cold function test . 18
8.104 Hot commissioning . 18
8.104.1 General . 18
8.104.2 Energy consumption during holding operation . 18
8.104.3 Energy consumption during normal operation . 19
8.104.4 Rated arc furnace capacity . 19
8.105 Preparation for performance test . 19
8.105.1 Performance dependence on supply voltage . 20
8.105.2 Processing range of intended operation . 20
8.105.3 Short circuit test . 20
8.105.4 Electrode consumption . 20

IEC 60676:2024 © IEC 2024 – 3 –
8.105.5 Tap-to-tap time . 20
8.105.6 Power on time . 20
8.105.7 Arcing time . 20
8.105.8 Process time . 20
8.105.9 Apparent power . 20
8.105.10 Active power . 20
8.105.11 Reactive power . 21
8.105.12 Power factor . 21
9 Efficiency of the installation . 21
9.1 General . 21
9.2 Specific energy consumption . 21
9.3 Heating efficiency of arc furnace installation . 21
9.4 Supply power usage efficiency . 22
9.5 Energy transfer efficiency . 22
Annex A (informative) Energy efficiency assessment . 23
Annex B (informative) Visual display of energy efficiency related information . 24
B.101 General . 24
B.102 Sankey diagram of power balance – to be adapted to EAF route . 24
B.103 Time resolved power usage diagram .
...

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