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EN 62798:2014

(Main)

Industrial electroheating equipment - Test methods for infrared emitters

Industrial electroheating equipment - Test methods for infrared emitters

IEC 62798:2014 specifies test procedures, conditions and methods according to which the main parameters and the main operational characteristics of industrial infrared emitters are established. A limitation of the scope of this standard is that the infrared emitters have a maximum spectral emission at longer wavelengths than 780 nm in air or vacuum, and are emitting wideband continuous spectra such as by thermal radiation or high pressure arcs.

Industrielle Elektrowärmeeinrichtungen - Prüfverfahren für Infrarotstrahler

Chauffage électrique industriel - Méthodes d’essais des émetteurs de rayonnement infrarouge

L'IEC 62798:2014 spécifie les modes opératoires d'essais, les conditions et méthodes d'essais selon lesquels sont établis les principaux paramètres et les principales caractéristiques de fonctionnement des émetteurs industriels de rayonnement infrarouge. Une limitation du domaine d'application de la présente norme réside dans le fait que les émetteurs de rayonnement infrarouge ont une émission spectrale maximale aux longueurs d'onde supérieures à 780 nm dans l'air ou dans le vide, et émettent des spectres continus à large bande tels que par rayonnement thermique ou arcs à haute pression.

Oprema za industrijsko električno ogrevanje - Preskusne metode za infrardeče oddajnike

General Information

Status
Published
Publication Date
02-Oct-2014
Withdrawal Date
28-Sep-2017
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
03-Oct-2014
Completion Date
03-Oct-2014
Ref Project
SIST EN 62798:2015 - Industrial electroheating equipment - Test methods for infrared emitters

Relations

Corrected By
EN 62798:2014/AC:2014 - Industrial electroheating equipment - Test methods for infrared emitters
Effective Date
25-Jan-2023

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SLOVENSKI STANDARD
01-junij-2015
2SUHPD]DLQGXVWULMVNRHOHNWULþQRRJUHYDQMH3UHVNXVQHPHWRGH]DLQIUDUGHþH
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Industrial electroheating equipment - Test methods for infrared emitters
Ta slovenski standard je istoveten z: EN 62798:2014
ICS:
25.180.10 (OHNWULþQHSHþL Electric furnaces
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN 62798
NORME EUROPÉENNE
EUROPÄISCHE NORM
October 2014
ICS 25.180.10
English Version
Industrial electroheating equipment -
Test methods for infrared emitters
(IEC 62798:2014)
Chauffage électrique industriel - Méthodes d'essais des Industrielle Elektrowärmeeinrichtungen - Prüfverfahren für
émetteurs de rayonnement infrarouge Infrarotstrahler
(CEI 62798:2014) (IEC 62798:2014)
This European Standard was approved by CENELEC on 2014-09-29. 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, Former Yugoslav Republic of Macedonia, 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.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2014 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 62798:2014 E
Foreword
The text of document 27/938/CDV, future edition 1 of IEC 62798, prepared by IEC/TC 27 "Industrial
electroheating and electromagnetic processing" was submitted to the IEC-CENELEC parallel vote and
approved by CENELEC as EN 62798:2014.

The following dates are fixed:
(dop) 2015-06-29
• 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) 2017-09-29
standards conflicting with the
document have to be withdrawn
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 62798:2014 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:

IEC 60519-1:2010 NOTE Harmonized as EN 60519-1:2011 (not modified).
IEC 62471:2006 NOTE Harmonized as EN 62471:2008 (modified).
IEC 60079-0 NOTE Harmonized as EN 60079-0.

- 3 - EN 62798:2014
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 1 When 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.cenelec.eu
Publication Year Title EN/HD Year

Methods of test for dense shaped EN 993-11
refractory products -
Part 11: Determination of resistance to
thermal shock
IEC 60061-1 -  Lamp caps and holders together with EN 60061-1 -
gauges for the control of interchangeability
and safety -
Part 1: Lamp caps
IEC 60061-2 -  Lamp caps and holders together with EN 60061-2 -
gauges for the control of interchangeability
and safety -
Part 2: Lampholders
IEC 60061-3 -  Lamp caps and holders together with EN 60061-3 -
gauges for the control of interchangeability
and safety -
Part 3: Gauges
IEC 60068-2-6 -  Environmental testing - EN 60068-2-6 -
Part 2-6: Tests - Test Fc: Vibration
(sinusoidal)
IEC 60068-2-7 -  Basic environmental testing procedures - EN 60068-2-7 -
Part 2-7: Tests - Test Ga and guidance:
Acceleration, steady state
IEC 60432-1 (mod) 1999 Incandescent lamps - Safety EN 60432-1 2000
specifications -
+A1 2005 +A1 2005
Part 1: Tungsten filament lamps for
+A2 2011 +A2 2012
domestic and similar general lighting
purposes
IEC 60519-12 -  Safety in electroheating installations - EN 60519-12 -
Part 12: Particular requirements for
infrared electroheating installations
IEC 60682 1980 Standard method of measuring the pinch EN 60682 1993
temperature of quartz-tungstenhalogen
+A1 1987
lamps
+A2 1997 +A2 1997
IEC 62693 2013 Industrial electroheating installations - EN 62693 2013
Test methods for infrared electroheating
installations
IEC 62798 ®
Edition 1.0 2014-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Industrial electroheating equipment – Test methods for infrared emitters

Chauffage électrique industriel – Méthodes d’essais des émetteurs de

rayonnement infrarouge
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
X
CODE PRIX
ICS 25.180.10 ISBN 978-2-8322-1837-2

– 2 – IEC 62798:2014 © IEC 2014
CONTENTS
FOREWORD . 5
INTR ODUCTION . 6
1  Scope and object . 7
2  Normative references. 8
3  Terms and definitions . 8
3.1  General . 8
3.2  Radiation . 9
4  Classification of infrared emitters . 10
5  Type of tests and general conditions of their performance . 12
5.1  General – list of tests . 12
5.2  Test conditions . 15
5.2.1  Operating conditions during tests . 15
5.2.2  Standard environment for tests . 15
5.2.3  Non-standard environment for tests . 15
5.2.4  Supply voltage . 15
5.3  Stationary condition . 16
5.4  Number of emitters for tests . 16
6  Measurements . 16
6.1  General . 16
6.2  Time resolution . 16
6.3  Measurement of electric data . 16
6.4  Temperature measurement . 17
6.5  Irradiance and radiance measurement . 17
6.6  Spectral measurements . 18
6.6.1  General . 18
6.6.2  Calculation as a surrogate for measurement . 18
6.6.3  Required spectral range . 18
6.6.4  Measurement conditions . 18
6.6.5  Spectral meas urement s . 19
7  Technical tests . 19
7.1  General . 19
7.2  Tests concerning cap and holder of emitter . 19
7.2.1  General . 19
7.2.2  Cap and holder interchangeability . 19
7.2.3  Cap twist-off test . 19
7.3  Power consumption characteristics . 19
7.3.1  Rated power . 19
7.3.2  Variation of power with voltage . 19
7.3.3  Inrush current . 20
7.3.4  Emitter resistivity as estimate for rated power . 20
7.4  Emitter temperature tests . 20
7.4.1  Rated temperature . 20
7.4.2  Variation of source temperature with voltage . 21
7.4.3  Source temperature rise time . 21
7.4.4  Source temperature cooling time for quartz tube emitters . 22

IEC 62798:2014 © IEC 2014 – 3 –
7.4.5  Source temperature cooling time for other emitters . 22
7.4.6  Quartz tube cooling time for quartz tube emitters . 22
7.4.7  Source temperature distribution . 22
7.4.8  Average temperature calculation from a thermal image . 23
7.4.9  Surface temperature distribution . 23
7.4.10  Distribution temperature . 24
7.4.11  Thermal ruggedness . 25
7.4.12  Pinching temperature of pinched emitters . 25
7.5  Radiation characteristics . 25
7.5.1  General . 25
7.5.2  Radial irradiation distribution of tubular emitters . 26
7.5.3  Reflectivity of a tubular emitter with applied reflector . 26
7.5.4  Planar irradiation field caused by an emitter . 26
7.5.5  Angular irradiation distribution caused by an emitter . 27
7.5.6  Emitted spectrum . 27
7.5.7  Rated total radiant power . 28
7.5.8  Irradiation reaction time . 29
7.6  Mechanical ruggedness . 29
7.6.1  Accelerat i on . 29
7.6.2  Vibration .
...

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