EN 60507:2014

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Essais sous pollution artificielle des isolateurs haute tension en céramique et en verre destinés aux réseaux à courant alternatifArtificial pollution tests on high-voltage ceramic and glass insulators to be used on a.c. systems29.080.10IzolatorjiInsulatorsICS:Ta slovenski standard je istoveten z:EN 60507:2014SIST EN 60507:2014en01-oktober-2014SIST EN 60507:2014SLOVENSKI
STANDARD
EUROPEAN STANDARD EN 60507 NORME EUROPÉENNE
EUROPÄISCHE NORM March 2014
CENELEC 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 60507:2014 E
ICS 29.080.10 Supersedes EN 60507:1993
English version
Artificial pollution tests on high-voltage ceramic and glass insulators to be used on a.c. systems (IEC 60507:2013)
Essais sous pollution artificielle des isolateurs haute tension en céramique et en verre destinés aux réseaux à courant alternatif (CEI 60507:2013)
Fremdschichtprüfungen an Hochspannungs-Isolatoren aus Keramik und Glas zur Anwendung in Wechselspannungssystemen (IEC 60507:2013)
This European Standard was approved by CENELEC on 2014-01-17. 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.
The following dates are fixed: • latest date by which the document has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2014-10-17 • latest date by which the national standards conflicting with the document have to be withdrawn (dow) 2017-01-17
This document supersedes EN 60507:1993.
EN 60507:1993: a) Corrections and the addition of explanatory material; b) The addition of Clause 4.4.2 on atmospheric correction; c) The change of the upper limit of conductivity of water to 0.1 S/m; and d) The extension to UHV voltages.
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 60507:2013 was approved by CENELEC as a European Standard without any modification. SIST EN 60507:2014

- 3 - EN 60507:2014 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
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 60060-1 - High-voltage test techniques -
Part 1: General definitions and test requirements EN 60060-1 -
IEC 60071-1 - Insulation co-ordination -
Part 1: Definitions, principles and rules EN 60071-1 -
IEC/TS 60815-1 - Selection and dimensioning of high-voltage insulators intended for use in polluted conditions -
Part 1: Definitions, information and general principles - -
IEC/TS 60815-2 - Selection and dimensioning of high-voltage insulators intended for use in polluted conditions -
Part 2: Ceramic and glass insulators for a.c. systems - -
IEC 60507 Edition 3.0 2013-12 INTERNATIONAL STANDARD NORME INTERNATIONALE Artificial pollution tests on high-voltage ceramic and glass insulators to be used on a.c. systems
Essais sous pollution artificielle des isolateurs haute tension en céramique et en verre destinés aux réseaux à courant alternatif
INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE W ICS 29.080.10 PRICE CODE CODE PRIX ISBN 978-2-8322-1297-4
– 2 – 60507 © IEC:2013
CONTENTS
FOREWORD . 5 1 Scope . 7 2 Normative references . 7 3 Terms and definitions . 7 4 General test requirements . 10 4.1 General . 10 4.2 Test method . 10 4.3 Arrangement of insulator for test . 10
Test configuration . 10 4.3.1 Cleaning of insulator . 11 4.3.24.4 Requirements for the testing plant . 11
Test voltage . 11 4.4.1 Atmospheric corrections . 11 4.4.2 Minimum short-circuit current . 12 4.4.35 Salt fog method . 13 5.1 General information . 13 5.2 Salt solution . 13 5.3 Spraying system . 15 5.4 Conditions before starting the test. 18 5.5 Preconditioning process . 18 5.6 Withstand test . 19 5.7 Acceptance criterion for the withstand test . 19 6 Solid layer methods . 19 6.1 General information . 19 6.2 Main characteristics of inert materials . 20 6.3 Composition of the contaminating suspension . 20
General . 20 6.3.1 Kieselguhr composition . 20 6.3.2 Kaolin (or Tonoko) composition . 21 6.3.36.4 Application of the pollution layer . 22 6.5 Determination of the degree of pollution of the tested insulator . 23
General . 23 6.5.1 Layer conductivity (K) . 23 6.5.2 Salt deposit density (SDD) . 23 6.5.36.6 General requirements for the wetting of the pollution layer . 24 6.7 Test procedures . 24
General . 24 6.7.1 Procedure A – Wetting before and during energization . 24 6.7.2 Procedure B – Wetting after energization . 26 6.7.36.8 Withstand test and acceptance criterion (common to both Procedures A and B) . 27 Annex A (informative)
Supplementary information on the assessment of the requirement for the testing plant . 28 Annex B (informative)
Determination of the withstand characteristics of insulators . 29 B.1 General . 29 SIST EN 60507:2014

60507 © IEC:2013 – 3 – B.2 Determination of the maximum withstand salinity at a given test voltage . 29 B.3 Determination of the maximum withstand voltage, or of the 50 % withstand voltage, at a given reference layer conductivity, or at a given reference salt deposit density . 29 B.3.1 Maximum withstand voltage . 29 B.3.2 50 % withstand voltage . 30 B.4 Withstand values of reference suspension insulators . 30 Annex C (informative)
Measurement of layer conductivity for checking the uniformity of the layer . 32 Annex D (informative)
Additional recommendations concerning the solid layer method procedures. 34 D.1 General . 34 D.2 Contamination practice . 34 D.3 Drying of the pollution layer . 34 D.4 Check of the wetting action of the fog . 34 D.5 Checking fog uniformity for large or complex test objects . 35 D.6 Fog input in the test chamber . 35 D.7 Minimum duration of the withstand test . 35 D.8 Evaluation of the reference salt deposit density (SDD) . 36 Annex E (informative)
Supplementary information on artificial pollution tests on insulators for voltage systems of 800 kV and above (solid layer method procedure B) . 37 E.1 Introduction . 37 E.2 Test chamber . 37 E.3 Fog generator . 37 E.4 Wetting action and uniformity of fog density . 37 Bibliography . 38
Figure 1 – Minimum short-circuit current, Isc min, required for the testing plant as a function of the unified specific creepage distance (USCD) of the insulator under test . 13 Figure 2 – Value of factor b as a function of solution temperature . 15 Figure 3 – Typical construction of fog spray nozzle . 17 Figure 4 – Test layout for inclined insulators . 18 Figure 5 – Typical arrangement of steam-fog generator . 26 Figure C.1 – Arrangement of the probe electrodes
(all dimensions in mm) . 32 Figure C.2 – Circuit diagram of the meter . 33 Figure D.1 – Control of the wetting action of the steam fog: Layer conductance recording during the test on the chosen dummy insulator (standard type of Table B.1) . 36
Table 1 – Salt-fog method: correspondence between the value of salinity,
volume conductivity and density of the solution at a temperature of 20 °C . 14 Table 2 – Main characteristics of the inert materials used in solid layer suspensions . 20 Tab
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