Non destructive testing of welded joints of thermoplastics semifinished products - Part 4: High voltage testing

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.

Zerstörungsfreie Prüfung von Schweiβverbindungen thermoplastischer Kunstoffe - Teil 4: Hochspannungsprüfung

Diese Europäische Norm legt die lediglich zur Lokalisierung von Fehlstellen in Dickenrichtung anzuwendenden Prüfgeräte und -verfahren für die Hochspannungsprüfung von Stumpf- oder Überlapp(schweiß)nähten in thermoplastischen Kunststoffplatten fest. Die Norm gilt nur für neue, unge-brauchte Konstruktionen.

Essais non destructifs des assemblages soudés sur produits semi-finis en thermoplastiques - Partie 4 : Essais à haute tension

La présente Norme européenne spécifie l'équipement et les méthodes d'essais à haute tension des
assemblages soudés bout à bout ou à recouvrement de plaques en thermoplastiques permettant de localiser
uniquement les défauts traversants. Elle s'applique uniquement aux constructions neuves non utilisées.

Neporušitveno preskušanje zvarjenih spojev plastomernih polizdelkov - 4. del: Visokonapetostno preskušanje

Ta evropski standard določa opremo in postopke za visokonapetostno preskušanje soležnih ali prekrivnih zvarjenih spojev pri plastomernih ploščah izključno za ugotavljanje napak v debelini. Velja le za nove, neuporabljene konstrukcije.

General Information

Status
Published
Publication Date
30-Oct-2012
Withdrawal Date
29-Apr-2013
Current Stage
9060 - Closure of 2 Year Review Enquiry - Review Enquiry
Start Date
03-Mar-2024
Completion Date
03-Mar-2024

Overview

EN 13100-4:2012 - Non destructive testing of welded joints of thermoplastics semifinished products - Part 4: High voltage testing (CEN) specifies equipment, methods and acceptance-oriented procedures for locating through‑thickness defects in butt and overlap welded joints of thermoplastic sheets. The standard applies to new, unused constructions and focuses on high‑voltage (holiday) testing using spark testers and holiday detectors while emphasizing safety and repeatable test reporting.

Key topics and requirements

  • Scope and principle: A high voltage is applied to the weld surface while the opposite side is in contact with a conductive substrate (or a wire in overlap joints). Defects are indicated by spark discharge with optical and/or acoustic signals.
  • Equipment types:
    • High‑frequency spark tester - mains powered, high voltage (up to ~100 kV), visual spark indication; no substrate connection required if substrate is large metal.
    • DC holiday detector - stabilised DC output (to ~50 kV), meter readout, audio/visual alarms; substrate connection required.
    • Pulsed holiday detector - pulsed DC up to ~50 kV, higher power, works with some surface moisture; requires special meter for crest verification.
  • Voltage determination: The standard provides methods to calculate the initial test voltage (VI) from sheet geometry and to calculate breakdown voltage VB = Ds × dt (Ds = dielectric strength; dt = distance through material). If VI exceeds VB, EN 13100‑4 prescribes controlled trial holes and a procedure using the measured sparking voltage (Vo) to derive the actual test voltage (VA).
  • Test electrodes and technique:
    • Electrode must make continuous contact; use small brush electrodes for recesses or overlap joints; place an uninsulated wire near the inner edge for overlap tests to lower required voltage.
    • Recommended traverse speeds: up to 40 cm/s for DC/pulsed detectors, up to 20 cm/s for spark testers (manufacturers’ limits apply).
  • Safety and environment: Explicit attention to electric shock risks, explosion hazards in flammable atmospheres, and electromagnetic disturbances.
  • Reporting: Test report must reference EN 13100‑4 and include object ID, material, weld geometry, thickness, welding process, tester type, electrode, test voltage/spark length, defects and operator/date.

Applications and users

  • Practical for NDT technicians, fabricators and quality managers who inspect welded thermoplastic sheets (e.g., geomembranes, liners, tanks, ducts) in manufacturing and field acceptance testing.
  • Useful to inspection bodies, manufacturers and contractors who require a repeatable, safety‑aware method to locate through‑thickness defects prior to commissioning.

Related standards

  • EN 13100‑1 - Visual examination
  • EN 13100‑2 - X‑ray radiographic testing
  • EN 13100‑3 - Ultrasonic testing

Keywords: EN 13100-4:2012, high voltage testing, non‑destructive testing, welded joints, thermoplastics, holiday detector, spark tester, dielectric strength, test electrode.

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EN 13100-4:2014
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Frequently Asked Questions

EN 13100-4:2012 is a standard published by the European Committee for Standardization (CEN). Its full title is "Non destructive testing of welded joints of thermoplastics semifinished products - Part 4: High voltage testing". This standard covers: 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.

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.

EN 13100-4:2012 is classified under the following ICS (International Classification for Standards) categories: 25.160.40 - Welded joints and welds. The ICS classification helps identify the subject area and facilitates finding related standards.

You can purchase EN 13100-4:2012 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of CEN standards.

Standards Content (Sample)


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
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

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
...

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The EN 13100-4:2012 standard provides a comprehensive framework for high voltage testing of welded joints in thermoplastic semifinished products. Specifically targeting butt and overlap welds, the scope intricately outlines the methodologies and equipment necessary for detecting through-thickness defects in thermoplastic sheets. This focused approach ensures that the standard is highly relevant for manufacturers and quality assurance professionals in industries where thermoplastic materials are utilized. One of the notable strengths of EN 13100-4:2012 is its emphasis on non-destructive testing (NDT) techniques. By allowing for the identification of defects without compromising the integrity of the materials, it addresses critical concerns in quality control and safety. The specification for equipment and procedures offers a structured guide, facilitating consistency and reliability in testing processes. Furthermore, the standard is particularly valuable as it restricts its application to new, unused constructions, ensuring that the methodologies are appropriate and effective in assessing the integrity of fresh production batches. This focus enhances its practicality in real-world applications, providing confidence to stakeholders throughout the supply chain. Overall, EN 13100-4:2012 is an essential document that underscores the importance of high voltage testing in the evaluation of welded thermoplastic joints. Its robust specifications and dedicated scope reinforce its relevance in the field of non-destructive testing, making it a go-to guideline for professionals seeking to uphold stringent quality standards in thermoplastic materials.

La norme EN 13100-4:2012, intitulée "Essai non destructif des joints soudés de produits semi-finis en thermoplastique - Partie 4 : Essai sous haute tension", se fixe un objectif précis et essentiel dans le domaine du contrôle qualité des matériaux thermoplastiques. Son champ d'application se concentre sur l'évaluation des joints soudés, qu'ils soient de type bout ou recouvrement, spécifiquement pour localiser les défauts à travers l'épaisseur des feuilles thermoplastiques. L'une des forces majeures de cette norme réside dans sa spécification claire des équipements et méthodes, ce qui constitue un atout indéniable pour les professionnels du secteur. Cela permet une standardisation des pratiques d'essai, favorisant ainsi la fiabilité des résultats obtenus. En intégrant des méthodes éprouvées, la norme garantit également la sécurité et la performance des constructions neuves, ce qui est particulièrement pertinent pour les industries où la qualité et la durabilité des matériaux sont primordiales. De plus, la pertinence de la EN 13100-4:2012 s’illustre par son applicabilité exclusive aux constructions neuves non utilisées, limitant ainsi son champ d’application à des projets où la qualité initiale est assurée. Cela renforce la qualité globale et la durabilité des produits fabriqués, facilitant ainsi l’adoption de meilleures pratiques au sein des entreprises. En résumé, la norme SIST EN 13100-4:2014, en tant que référence pour les essais non destructifs sous haute tension, fournit un cadre robuste et standardisé pour assurer l’intégrité des joints soudés en thermoplastique, apportant une valeur ajoutée à l'industrie.

Die Norm EN 13100-4:2012 beschreibt umfassend die Anforderungen und Verfahren für die Hochspannungstests von Schmelzverbindungen in thermoplastischen Platten. Der Fokus liegt hierbei speziell auf der Identifizierung von Durchdringungsfehlern in neu hergestellten Produkten. Die Norm ist besonders relevant für Hersteller und Prüfanlagen, die sicherstellen möchten, dass ihre geschweißten Verbindungen den erforderlichen Sicherheits- und Qualitätsstandards entsprechen. Ein zentraler Vorteil der Norm ist die klare Definition der benötigten Ausrüstungen und Testmethoden, die eine einheitliche Durchführung der Tests gewährleistet. Dies trägt zur Minimierung von Missverständnissen und Fehlern in der Prüfmethodik bei. Zudem ermöglicht der Einsatz dieser Vorschriften eine verbesserte Nachverfolgbarkeit von Prüfungen und Ergebnissen, was besonders in der industriellen Anwendung von großer Bedeutung ist. Ein weiterer Aspekt der Norm EN 13100-4:2012 ist ihre Fokussierung auf den Hochspannungstest als spezifische Methode zur Fehlererkennung. Dies macht sie zu einem unverzichtbaren Werkzeug für Qualitätskontrollen in der Fertigung von thermoplastischen Halbzeugen. Die Standardisierung dieser Verfahren trägt dazu bei, die Effizienz und Sicherheit der Produkte zu erhöhen, indem sie potenzielle Mängel rechtzeitig identifiziert. Die Relevanz dieser Norm erstreckt sich auch auf den internationalen Markt, da sie eine harmonisierte Grundlage für die Qualitätsbewertung von Schweißverbindungen in verschiedenen Ländern bietet. Dadurch wird gewährleistet, dass Unternehmen, die in der Herstellung und Prüfung von thermoplastischen Materialien tätig sind, hohe Standards erfüllen und ihre Wettbewerbsfähigkeit global steigern können. Insgesamt bietet die EN 13100-4:2012 eine wertvolle Grundlage für die Prüfung und Sicherstellung von Qualität in der Verarbeitung von thermoplastischen Materialien, wobei ihr klarer Fokus auf Hochspannungstests sowohl Sicherheit als auch Effizienz in der industriellen Anwendung fördert.

표준 EN 13100-4:2012는 열가소성 반제품의 용접 이음부에 대한 비파괴 검사 방법 중 고전압 시험을 규정하고 있습니다. 이 표준은 주로 접합부의 두께 방향 결함을 식별하는 데 사용되는 장비와 방법을 명시하고 있으며, 새로운 미사용 구조물에만 적용되는 점이 특징입니다. 이 표준의 강점 중 하나는 열가소성 재료에서의 용접 이음부 검사의 신뢰성과 정확성을 높여주는 것입니다. 고전압 시험을 통해 사용자는 정확한 결함 위치를 확인할 수 있으며, 이는 단순한 시각 검사나 기타 비파괴 검사 방법보다 더 효과적입니다. 이러한 정확성은 구조물의 안전성을 확보하는 데 중요한 역할을 합니다. 또한, EN 13100-4:2012는 열가소성 반제품의 다양성을 고려하여 작성된 만큼, 다양한 산업 분야에서의 적용 가능성을 높여 줍니다. 건설, 자동차, 에너지 및 제조업 등 여러 분야에서 이 표준의 충족 여부를 확인함으로써 제품의 품질을 보장할 수 있습니다. 결론적으로, SIST EN 13100-4:2014는 고전압 시험을 통해 열가소성 재료의 용접 이음부를 검증할 수 있는 중요한 기준을 제시하며, 안전하고 품질 보증된 제작 환경을 유지하는 데 필수적인 표준입니다.

標準EN 13100-4:2012は、熱可塑性半製品の溶接接合部に対する非破壊検査の一環として、高電圧試験の手法と装置を定めた重要な文書です。この標準は、バット溶接またはオーバーラップ溶接された熱可塑性シートの中で発生する可能性がある厚さ方向の欠陥を特定するための方法に焦点を当てています。 この標準の強みは、特に新しい未使用の構造物に限定せず、さまざまな産業分野において重要な役割を果たすことにあります。高電圧試験は、熱可塑性材料の性能評価において非常に効果的な手段であり、この標準に従うことで、構造物の信頼性向上や、予測可能な寿命を確保できる点が挙げられます。 さらに、EN 13100-4:2012は、業界全体での一貫した試験手法を規定しているため、異なる製造業者や検査機関間での結果の比較が容易になります。このように、標準は品質保証を強化し、顧客に対して高い透明性を提供します。 最後に、この文書は熱可塑性材料に関わる製造業者やエンジニアにとって不可欠なリソースとなっており、市場における信頼性のある製品を提供するために役立っています。そのため、EN 13100-4:2012は非破壊検査における重要な指針となっていると言えるでしょう。