EN 62076:2006

SLOVENSKI SIST EN 62076:2007
STANDARD
februar 2007
Industrijske inštalacije za električno gretje - Preskusne metode za indukcijske
kanale in indukcijske žarilne peči (IEC 62076:2006)
Industrial electroheating installations - Test methods for induction channel and
induction crucible furnaces (IEC 62076:2006)
ICS 25.180.10 Referenčna številka
©  Standard je založil in izdal Slovenski inštitut za standardizacijo. Razmnoževanje ali kopiranje celote ali delov tega dokumenta ni dovoljeno

EUROPEAN STANDARD
EN 62076
NORME EUROPÉENNE
November 2006
EUROPÄISCHE NORM
ICS 25.180.10 Supersedes HD 610 S1:1992 and EN 60646:1998

English version
Industrial electroheating installations -
Test methods for induction channel
and induction crucible furnaces
(IEC 62076:2006)
Installations électrothermiques Industrielle Elektrowärmeanlagen -
industrielles - Prüfverfahren für Induktionsrinnen- und
Méthodes d'essai Induktionstiegelöfen
pour fours à induction à canal et (IEC 62076:2006)
pour fours à induction à creuset
(CEI 62076:2006)
This European Standard was approved by CENELEC on 2006-10-01. 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, 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.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Central Secretariat: rue de Stassart 35, B - 1050 Brussels

© 2006 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 62076:2006 E
Foreword
The text of document 27/523/FDIS, future edition 1 of IEC 62076, prepared by IEC TC 27, Industrial
electroheating equipment, was submitted to the IEC-CENELEC parallel vote and was approved by
CENELEC as EN 62076 on 2006-10-01.
This European Standard supersedes HD 610 S1:1992 and EN 60646:1998.
The significant changes with respect to HD 610 S1:1992 and EN 60646:1998 are as follows:
− EN 60519-1:2003 has been taken into account;
− definitions have been brought into line with the second edition of IEC 60050-841;
− one additional test (5.8 Determination of the rated useful charge G ) has been introduced;
nu
− informative Annex B with the list of symbols used in the standard has been added.
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) 2007-07-01
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2009-10-01
Annex ZA has been added by CENELEC.
__________
Endorsement notice
The text of the International Standard IEC 62076:2006 was approved by CENELEC as a European
Standard without any modification.
__________
- 3 - EN 62076:2006
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

1)
IEC 60050-151 - International Electrotechnical Vocabulary - -
(IEV)
Part 151: Electrical and magnetic devices

IEC 60050-841 2004 International electrotechnical vocabulary - -
Part 841: Industrial electroheat

IEC 60398 1999 Industrial electroheating installations - - -
General test methods
1) 2)
IEC 60519-1 - Safety in electroheat installations EN 60519-1 2003
Part 1: General requirements
1) 2)
IEC 60519-3 - Safety in electroheat installations EN 60519-3 2005
Part 3: Particular requirements for induction
and conduction heating and induction melting
installations
1)
Undated reference.
2)
Valid edition at date of issue.

NORME CEI
INTERNATIONALE
IEC
INTERNATIONAL
Première édition
STANDARD
First edition
2006-07
Installations électrothermiques industrielles –
Méthodes d'essai pour fours à induction
à canal et pour fours à induction à creuset

Industrial electroheating installations –
Test methods for induction channel
and induction crucible furnaces

 IEC 2006 Droits de reproduction réservés  Copyright - all rights reserved
Aucune partie de cette publication ne peut être reproduite ni No part of this publication may be reproduced or utilized in any
utilisée sous quelque forme que ce soit et par aucun procédé, form or by any means, electronic or mechanical, including
électronique ou mécanique, y compris la photocopie et les photocopying and microfilm, without permission in writing from
microfilms, sans l'accord écrit de l'éditeur. the publisher.
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Telephone: +41 22 919 02 11 Telefax: +41 22 919 03 00 E-mail: inmail@iec.ch Web: www.iec.ch
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МеждународнаяЭлектротехническаяКомиссия
Pour prix, voir catalogue en vigueur
For price, see current catalogue

62076  IEC:2006 – 3 –
CONTENTS
FOREWORD.5

1 Scope and object.9
2 Normative references .9
3 Terms and definitions .9
4 Type of tests and general conditions of tests .21
4.1 General conditions for performance of tests .21
4.2 List of tests .21
4.3 Conditions for performing the tests .21
5 Methods for tests and measurements .23
5.1 Electrical withstand test of the inductor assembly.23
5.2 Tightness test of cooling water circuits .25
5.3 Flow test of cooling water circuits.25
5.4 Measurement of temperature rise of the coolant .25
5.5 Determination of the input power P and power factor λ of the furnace power
circuit .25
5.6 Determination of holding power P .27
h
5.7 Determination of specific energy consumption e, melting rate or super-
heating rate g .27
5.8 Determination of the rated useful charge G .29
nu
5.9 Measurement of the temperature of the furnace casing .29

Annex A (normative) Explanatory diagrams for symbols and definitions relating to the
furnace power circuit.31
Annex B (informative) List of symbols used in the document.35

Figure A.1 – Furnace power circuit .31
Figure A.2 – Examples of compensated circuits .33

62076  IEC:2006 – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
INDUSTRIAL ELECTROHEATING INSTALLATIONS –
TEST METHODS FOR INDUCTION CHANNEL AND
INDUCTION CRUCIBLE 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
this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,
Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC
Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested
in the subject dealt with may participate in this preparatory work. International, governmental and non-
governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely
with the International Organization for Standardization (ISO) in accordance with conditions determined by
agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence
between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
the latter.
5) IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with an IEC Publication.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
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 62076 has been prepared by IEC technical committee 27:
Industrial electroheating equipment.
IEC 62076 cancels and replaces the second edition of IEC 60396 (1991) and the second
edition of IEC 60646 (1992) and constitutes a combined technical revision thereof.
The significant changes with respect to these standards are as follows:
− the latest edition of IEC 60519-1 (2003) has been taken into account;
− definitions have been brought into line with the second edition of IEC 60050-841;
− one additional test (5.8 Determination of the rated useful charge G ) has been
nu
introduced;
− informative Annex B with the list of symbols used in the standard has been added.

62076  IEC:2006 – 7 –
The text of this standard is based on the following documents:
FDIS Report on voting
27/523/FDIS 27/539/RVD
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 maintenance result 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.
62076  IEC:2006 – 9 –
INDUSTRIAL ELECTROHEATING INSTALLATIONS –
TEST METHODS FOR INDUCTION CHANNEL AND
INDUCTION CRUCIBLE FURNACES
1 Scope and object
This International Standard applies to electrical installations comprising industrial induction
channel furnaces and induction crucible furnaces for melting, holding and superheating.
Its object is the standardization of test methods to determine the essential parameters and
technical charac
...