IEC 60683:2011

IEC 60683 ®
Edition 2.0 2011-10
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Industrial electroheating equipment – Test methods for submerged-arc furnaces

Chauffage électrique industriel – Méthodes d'essai des fours à arc submergé

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IEC 60683 ®
Edition 2.0 2011-10
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Industrial electroheating equipment – Test methods for submerged-arc furnaces

Chauffage électrique industriel – Méthodes d'essai des fours à arc submergé

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX N
ICS 25.180.10 ISBN 978-2-88912-753-5

– 2 – 60683 © IEC:2011
CONTENTS
FOREWORD . 3
1 Scope and object . 5
2 Normative references . 5
3 Terms and definitions . 5
4 Features of the SAF system . 8
4.1 Electrical assembly of SAF . 8
4.2 Star-delta switch . 9
4.3 Types of SAF . 9
4.4 SAF process principles . 9
4.5 Types of electrodes . 9
4.6 Electrode system . 10
4.7 Water cooling . 10
4.8 Electrical connection . 10
5 Tests and general conditions . 10
5.1 General . 10
5.2 List of tests during cold state . 11
5.3 List of tests during hot commissioning and hot state . 11
6 Technical tests . 11
6.1 Electrical insulation resistance . 11
6.1.1 General . 11
6.1.2 Electrical insulation during erection . 11
6.1.3 Electrical insulation during cold test . 11
6.1.4 Electrical insulation during hot state . 12
6.2 Cooling water system . 12
6.3 Characteristics of electrode regulation. 12
6.3.1 Speed of electrode motion . 12
6.3.2 Electrode regulator dead band . 12
6.3.3 Electrode motion response time . 12
6.3.4 Current control of semiconductor converter (if applicable) . 13
6.4 Determination of electrical characteristics during operation . 13
6.5 Determination of secondary voltage . 13
6.6 Operational parameters . 13
Bibliography . 14

60683 © IEC:2011 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
INDUSTRIAL ELECTROHEATING EQUIPMENT –
TEST METHODS FOR SUBMERGED-ARC FURNACES

FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
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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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 60683 has been prepared by IEC technical committee 27:
Industrial electroheating.
This second edition cancels and replaces the previous edition published in 1980 and
constitutes a technical revision.
Significant technical changes with respect to the previous edition are as follows:
– Clause 1 (Scope and object) – the types of furnaces covered by this standard are more
clearly defined.
– Clause 2 (Normative references) and Clause 3 (Terms and definitions) have been
updated and completed.
– A new Clause 4 (Features of the SAF sytem) has been added; it mainly concentrates
on the tests necessary for high voltage/high current electrical equipment in the
installation.
– Clause 5 (Tests and general conditions) and Clause 6 (Technical tests) have been
modified according to today's requirements for safe operation of a SAF.

– 4 – 60683 © IEC:2011
The text of this standard is based on the following documents:
CDV Report on voting
27/780/CDV 27/797/RVC
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
The committee has decided that the contents of this publication will remain unchanged until
the stability date indicated on the IEC web site under "http://webstore.iec.ch" in the data
related to the specific publication. At this date, the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
60683 © IEC:2011 – 5 –
INDUSTRIAL ELECTROHEATING EQUIPMENT –
TEST METHODS FOR SUBMERGED-ARC FURNACES

1 Scope and object
This International Standard specifies test procedures, conditions and methods according to
which the main parameters and the main operational characteristics of a submerged-arc
furnace (SAF) with rated electrical power levels above 500 kVA are established.
This standard is applicable to SAF with one
...