SIST EN 13100-4:2014

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Neporušitveno preskušanje zvarjenih spojev plastomernih polizdelkov - 4. del: Visokonapetostno preskušanjeZerstörungsfreie Prüfung von Schweißverbindungen thermoplastischer Kunststoffe - Teil 4: HochspannungsprüfungEssais non destructifs des assemblages soudés sur produits semi-finis en thermoplastiques - Partie 4: Essais à haute tensionNon destructive testing of welded joints of thermoplastics semifinished products - Part 4: High voltage testing83.140.01Izdelki iz gume in polimernih materialov na splošnoRubber and plastics products in general25.160.40Varjeni spoji in variWelded jointsICS:Ta slovenski standard je istoveten z:EN 13100-4:2012SIST EN 13100-4:2014en,fr,de01-maj-2014SIST EN 13100-4:2014SLOVENSKI
STANDARD



SIST EN 13100-4:2014



EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 13100-4
October 2012 ICS 25.160.40 English Version
Non destructive testing of welded joints of thermoplastics semifinished products - Part 4: High voltage testing
Essais non destructifs des assemblages soudés sur produits semi-finis en thermoplastiques - Partie 4 : Essais à haute tension
Zerstörungsfreie Prüfung von Schweißverbindungen thermoplastischer Kunstoffe - Teil 4: Hochspannungsprüfung This European Standard was approved by CEN on 22 September 2012.
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
Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2012 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 13100-4:2012: ESIST EN 13100-4:2014



EN 13100-4:2012 (E) 2 Contents Page Foreword . 31Scope . 42Terms and definitions . 43Symbols and designations . 44Principle of the test . 45Equipment types . 55.1General . 55.2High frequency spark tester . 55.3DC Holiday detector . 55.4Pulsed Holiday detector . 66Determination of test voltage . 66.1General . 66.2Butt joints . 66.3Overlap joints . 77Test electrode . 88Test procedure . 88.1DC and pulsed holiday detectors . 88.2High frequency spark testers . 99Test report . 9 SIST EN 13100-4:2014



EN 13100-4:2012 (E) 3 Foreword This document (EN 13100-4:2012) has been prepared by Technical Committee CEN/TC 249 “Platics”, the secretariat of which is held by NBN. 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 2013, and conflicting national standards shall be withdrawn at the latest by April 2013. 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 is composed of the following parts:  EN 13100-1, Non destructive testing of welded joints of thermoplastics semi-finished products  Part 1: Visual examination;  EN 13100-2, Non-destructive testing of welded joints in thermoplastics semi-finished products  Part 2: X-ray radiographic testing;  EN 13100-3, Non destructive testing of welded joints in thermoplastics semi-finished products  Part 3: Ultrasonic testing;  EN 13100-4, Non destructive testing of welded joints of thermoplastics semifinished products — Part 4: High voltage testing. According to the CEN/CENELEC Internal Regulations, the national standards organisations 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.
SIST EN 13100-4:2014



EN 13100-4:2012 (E) 4 1 Scope This European Standard specifies the equipment and methods for the high voltage testing of butt or overlap welded joints in thermoplastic sheets for locating through-thickness defects only. It applies to new unused constructions only. 2 Terms and definitions For the purpose of this document, the following terms and definitions apply. 2.1 dielectric strength maximum voltage a material of unit thickness can withstand continuously without failure 3 Symbols and designations Symbols and designations are given in Table 1. Table 1  Symbols and designations
Symbol Designation
Unit
Ds
Dielectric strength
Vmm-1 VB Breakdown voltage V dt Distance from test electrode to conductor mm VI Initial test voltage V VA Actual voltage used for the test V Vo Voltage which causes a spark at a hole in the plastic sheet V
4 Principle of the test A high voltage is applied to one side of the joint to be tested using a suitable electrode, the other side of the material needs to be in contact with a conductive substrate which in some cases will need a connection back to the test equipment. The test shall be carried out with a voltage high enough to jump the gap between the test electrode and a conductor. A defect is indicated by a spark discharge and, depending on the equipment used, a simultaneous optical and / or acoustic signal.
The health and safety aspects (e.g. electric shocks, risks of explosions in flammable atmosphere) together with the environmental impacts (e.g. electromagnetic disturbances) shall be thoroughly considered before operating the equipment.
NOTE Moisture in concrete can make it sufficiently conductive to allow high voltage testing to be used. SIST EN 13100-4:2014



EN 13100-4:2012 (E) 5 5 Equipment types 5.1 General There are
...