EN ISO 2746:2015
(Main)Vitreous and porcelain enamels - High voltage test (ISO 2746:2015)
Vitreous and porcelain enamels - High voltage test (ISO 2746:2015)
ISO 2746:2015 describes two test methods of high voltage testing:
- Test A is used to detect and locate defects in vitreous and porcelain enamels;
- Test B is used to detect and locate defects and weak spots in vitreous and porcelain enamels.
The tests are performed using DC or pulsed DC high voltage.
The tests are applicable to dry surfaces of enamel coatings. In the case of moist surfaces, care should be taken to ensure that the locating of any defects is correctly performed.
Since test voltages depend on the coating thickness, the test method, especially with test A, may not be suitable for test specimens for which the coating thickness varies to a large extent.
Emails und Emaillierungen - Hochspannungsprüfung (ISO 2746:2015)
Diese Internationale Norm legt zwei Verfahren der Hochspannungsprüfung fest:
— Prüfung A zum Nachweis und Lokalisieren von Fehlstellen in Emails und Emaillierungen;
— Prüfung B zum Nachweis und Lokalisieren sowohl von Fehlstellen als auch von Schwachstellen in Emails und Emaillierungen.
Die Prüfungen werden mit gleichgerichteter Hochspannung (DC) oder gepulster DC-Hochspannung durchgeführt.
Die Prüfungen gelten für trockene Emailoberflächen. Bei feuchten Oberflächen sollte darauf geachtet werden, dass die Prüfung zum vollständigen Nachweis von Fehlstellen korrekt vorgenommen wird.
Da die Prüfspannung von der Dicke des Emailüberzugs abhängt, kann das Prüfverfahren, insbesondere bei Prüfung A, nicht für Prüfgegenstände geeignet sein, bei denen große Unterschiede der Überzugsdicken auftreten.
Emaux vitrifiés - Essai sous haute tension (ISO 2746:2015)
ISO 2746:2015 décrit deux méthodes d'essai sous haute tension:
- l'essai A sert à détecter et à localiser les défauts dans les émaux vitrifiés;
- l'essai B sert à détecter et à localiser les défauts et les points faibles dans les émaux vitrifiés.
Les essais sont réalisés sous haute tension en courant continu ou en courant continu pulsé.
Les essais sont effectués sur les surfaces sèches des revêtements émaillés. En cas de surfaces humides, il convient de veiller à ce que la localisation des éventuels défauts soit correctement réalisée.
Les tensions d'essai variant en fonction de l'épaisseur du revêtement, les méthodes d'essai, en particulier celle de l'essai A, peuvent ne pas convenir à des éprouvettes présentant une fluctuation importante de l'épaisseur du revêtement.
Steklasti in porcelanski emajli - Visokonapetostni preskus (ISO 2746:2015)
Ta standard, ki revidira standarda EN 14430:2004 in ISO 2746:1998, opisuje dve preskusni metodi visokonapetostnega preskušanja: – preskus A se uporablja za odkrivanje in lociranje napak v steklastih in porcelanskih emajlih; – preskus B se uporablja za odkrivanje in lociranje napak in pomanjkljivosti v steklastih in porcelanskih emajlih. Preskusa se opravita z enosmernim, pulzirajočim enosmernim ali izmeničnim visokim tokom. Preskusa se uporabljata pri suhi površini emajliranih premazov. Če je površina vlažna, je treba zagotoviti, da je lociranje morebitnih napak izvedeno ustrezno. Ker so preskusne napetosti odvisne od debeline premaza, preskusna metoda, zlasti pri preskusu A, morda ni primerna za preskusne vzorce, pri katerih je debelina premaza izjemno neenakomerna.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN ISO 2746:2016
01-januar-2016
1DGRPHãþD
SIST EN 14430:2004
Steklasti in porcelanski emajli - Visokonapetostni preskus (ISO 2746:2015)
Vitreous and porcelain enamels - High voltage test (ISO 2746:2015)
Emails und Emaillierungen - Hochspannungsprüfung (ISO 2746:2015)
Émaux vitrifiés - Essai sous haute tension (ISO 2746:2015)
Ta slovenski standard je istoveten z: EN ISO 2746:2015
ICS:
25.220.50 Emajlne prevleke Enamels
SIST EN ISO 2746:2016 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN ISO 2746:2016
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SIST EN ISO 2746:2016
EN ISO 2746
EUROPEAN STANDARD
NORME EUROPÉENNE
October 2015
EUROPÄISCHE NORM
ICS 25.220.50 Supersedes EN 14430:2004
English Version
Vitreous and porcelain enamels - High voltage test (ISO
2746:2015)
Emaux vitrifiés - Essai sous haute tension (ISO Emails und Emaillierungen - Hochspannungsprüfung
2746:2015) (ISO 2746:2015)
This European Standard was approved by CEN on 29 August 2015.
CEN 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 CEN
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 CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2015 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 2746:2015 E
worldwide for CEN national Members.
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SIST EN ISO 2746:2016
EN ISO 2746:2015 (E)
Contents Page
European foreword . 3
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SIST EN ISO 2746:2016
EN ISO 2746:2015 (E)
European foreword
This document (EN ISO 2746:2015) has been prepared by Technical Committee ISO/TC 107 " Metallic
and other inorganic coatings" in collaboration with Technical Committee CEN/TC 262 “Metallic and
other inorganic coatings” the secretariat of which is held by BSI.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by April 2016, and conflicting national standards shall be
withdrawn at the latest by April 2016.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent
rights.
This document supersedes EN 14430:2004.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,
Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
Endorsement notice
The text of ISO 2746:2015 has been approved by CEN as EN ISO 2746:2015 without any modification.
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SIST EN ISO 2746:2016
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SIST EN ISO 2746:2016
INTERNATIONAL ISO
STANDARD 2746
Third edition
2015-10-01
Vitreous and porcelain enamels —
High voltage test
Émaux vitrifiés — Essai sous haute tension
Reference number
ISO 2746:2015(E)
©
ISO 2015
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SIST EN ISO 2746:2016
ISO 2746:2015(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2015, Published in Switzerland
All rights reserved. Unless otherwise specified, no part of this pub
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