EN 14730-2:2021
(Main)Railway applications - Track - Aluminothermic welding of rails - Part 2: Qualification of aluminothermic welders, approval of contractors and acceptance of welds
Railway applications - Track - Aluminothermic welding of rails - Part 2: Qualification of aluminothermic welders, approval of contractors and acceptance of welds
This document specifies requirements for the:
- approval of training facilities, testing and maintaining the skills of aluminothermic welders and welding trainers. It applies to those aluminothermic welding processes compliant with the requirements of EN 14730-1. It requires that the system for training and testing of welders be approved by the railway authority;
- approval of aluminothermic welding contractors. It applies to those contractors using aluminothermic welding processes compliant with the requirements of EN 14730-1 and who employ welders in the possession of a valid permit to weld as defined in Clause 4 of this document;
- acceptance of the final aluminothermic weld inspections and aluminothermic weld inspectors approved by the railway authority. It does not cover any previous weld inspections by the welder or others.
This document also applies to aluminothermic welds produced on railway rails as contained in EN 13674-1 to EN 13674-4 and EN 16771.
Bahnanwendungen - Oberbau - Aluminothermisches Schweißen von Schienen - Teil 2: Qualifizierung aluminothermischer Schweißer, Zertifizierung von Betrieben und Abnahme von Schweißungen
Dieses Dokument legt Anforderungen fest für:
- Zulassung von Ausbildungseinrichtungen, Prüfung und Erhaltung der Fähigkeiten von aluminothermischen Schweißern und Schweißausbildern. Sie gilt für aluminothermische Schweißverfahren entsprechend den Anforderungen in EN 14730-1. Sie verlangt, dass das System zur Ausbildung und Prüfung von Schweißern von dem Eisenbahnunternehmen zugelassen wird;
- Zulassung von aluminothermischen Schweißfachbetrieben. Sie gilt für Auftragnehmer, die aluminothermische Schweißverfahren entsprechend den Anforderungen in EN 14730-1 anwenden und Schweißer beschäftigen, die im Besitz eines gültigen Berechtigungsausweises für das Schweißen im Sinne von Abschnitt 4 dieses Dokuments sind;
- Endabnahme der von dem Eisenbahnunternehmen genehmigten aluminothermischen Prüfungen und aluminothermischen Schweißüberwacher. Sie umfasst keine früheren Schweißprüfungen durch den Schweißer oder andere.
Dieses Dokument ist für aluminothermische Schweißungen von Eisenbahnschienen anzuwenden, die in EN 13674 1 bis EN 13674 4 und EN 16771 enthalten sind.
Applications ferroviaires - Voie - Soudage des rails par aluminothermie - Partie 2 : Qualification des soudeurs par aluminothermie, agrément des entreprises et réception des soudures
Le présent document spécifie les exigences relatives à :
- l'agrément des établissements de formation, le test et le maintien des compétences des soudeurs et des formateurs en soudage par aluminothermie. Il s'applique aux procédés de soudage par aluminothermie satisfaisant aux exigences de l'EN 14730 1. Il nécessite l'approbation du système de formation et de test des soudeurs par l'autorité ferroviaire concernée ;
- l'agrément des prestataires de soudage par aluminothermie. Il s'applique aux prestataires qui utilisent des procédés de soudage par aluminothermie satisfaisant aux exigences de l'EN 14730 1 et qui emploient des soudeurs titulaires d'un permis de souder valide conformément à l'Article 4 du présent document ;
- la réception des vérifications finales des soudures par aluminothermie et des contrôleurs soudure par aluminothermie approuvés par l'autorité ferroviaire. Il ne couvre pas les vérifications des soudures antérieures réalisées par le soudeur ou d'autres personnes.
Le présent document s'applique également aux soudures par aluminothermie réalisées sur des rails tel que définis dans l'EN 13674 1 à l'EN 13674 4 et dans l'EN 16771.
Železniške naprave - Zgornji ustroj proge - Aluminotermično varjenje tirnic - 2. del: Kvalifikacije varilcev, cerificiranje izvajalcev in prevzem zvarov
General Information
Relations
Overview
EN 14730-2:2021 - "Railway applications - Track - Aluminothermic welding of rails - Part 2" defines requirements for the qualification of aluminothermic welders, approval of contractors and training centres, and acceptance of aluminothermic welds. Published by CEN, this standard supports safe, consistent aluminothermic welding of rail joints and complements EN 14730-1 (approval of welding processes). It supersedes EN 14730-2:2006 and is intended for use by railway authorities, infrastructure owners and contractors operating in the European market.
Key topics and technical requirements
- Training and examination
- Training must occur in an approved training centre and follow the process supplier’s process manual.
- Minimum initial course: 4 weeks for candidates without previous welding experience; minimum 2 weeks content delivery for experienced candidates or shorter validated courses.
- Final assessment includes a theoretical test (≥25 multiple-choice questions, ≥75% pass rate and at least 5 mandatory questions on critical parameters) and a practical test producing a test weld.
- Successful candidates receive a Diploma in Aluminothermic Welding of Rails (details specified in the standard).
- Permit to Weld
- Issued by the railway authority, remains authority property, and has a maximum validity of 5 years. Employers hold and manage permits and performance records.
- Approval of contractors and process management
- Contractors must implement a Welding Quality Management System, welding coordination (per EN ISO 14731), equipment control, consumable management, traceability and periodic audits.
- Acceptance and inspection of welds
- Final weld acceptance is performed by inspectors approved by the railway authority. The standard covers geometric requirements, weld integrity testing and documentation (see Clauses 6.4–6.6).
- Records and identification
- Requirements for welder identification, records, examiner roles and training centre approvals are specified.
Applications and who uses it
- Railway authorities and infrastructure owners: to approve training centres, contractors and weld inspectors and to enforce consistent acceptance criteria for rail welds.
- Welding contractors and process suppliers: to design training programmes, qualify welders, manage quality systems and demonstrate compliance.
- Training organisations, welding trainers, welders and welding coordinators: to meet certification, examination and permit-to-weld requirements.
- Inspectors and auditors: for final weld acceptance, traceability checks and contract compliance.
Related standards
- EN 14730-1 (Approval of welding processes)
- EN ISO 3834-2 (Quality requirements for fusion welding)
- EN ISO 14731 (Welding coordination)
- EN 13674-1 to EN 13674-4 and EN 16771 (rail specifications and weld contexts)
EN 14730-2:2021 is essential for organisations involved in aluminothermic welding of rails that require standardized training, contractor approval and reliable weld acceptance procedures.
Standards Content (Sample)
SLOVENSKI STANDARD
01-julij-2021
Nadomešča:
SIST EN 14730-2:2007
Železniške naprave - Zgornji ustroj proge - Aluminotermično varjenje tirnic - 2. del:
Kvalifikacije varilcev, cerificiranje izvajalcev in prevzem zvarov
Railway applications - Track - Aluminothermic welding of rails - Part 2: Qualification of
aluminothermic welders, approval of contractors and acceptance of welds
Bahnanwendungen - Oberbau - Aluminothermisches Schweißen von Schienen - Teil 2:
Qualifizierung aluminothermischer Schweißer, Zertifizierung von Betrieben und Abnahme
von Schweißungen
Applications ferroviaires - Voie - Soudage des rails par aluminothermie - Partie 2 :
Qualification des soudeurs par aluminothermie, agrément des entreprises et réception
des soudures
Ta slovenski standard je istoveten z: EN 14730-2:2021
ICS:
25.160.10 Varilni postopki in varjenje Welding processes
93.100 Gradnja železnic Construction of railways
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN 14730-2
EUROPEAN STANDARD
NORME EUROPÉENNE
April 2021
EUROPÄISCHE NORM
ICS 25.160.01; 25.160.10; 93.100 Supersedes EN 14730-2:2006
English Version
Railway applications - Track - Aluminothermic welding of
rails - Part 2: Qualification of aluminothermic welders,
approval of contractors and acceptance of welds
Applications ferroviaires - Voie - Soudage des rails par Bahnanwendungen - Oberbau - Aluminothermisches
aluminothermie - Partie 2 : Qualification des soudeurs Schweißen von Schienen - Teil 2: Qualifizierung
par aluminothermie, agrément des entreprises et aluminothermischer Schweißer, Zertifizierung von
réception des soudures Betrieben und Abnahme von Schweißungen
This European Standard was approved by CEN on 30 November 2020.
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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, 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: Rue de la Science 23, B-1040 Brussels
© 2021 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 14730-2:2021 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
Introduction . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 Qualification of aluminothermic trainers and welders . 7
4.1 Training requirements . 7
4.2 Duration of training . 7
4.3 Examination . 7
4.4 Diploma. 8
4.5 Permit to Weld . 8
4.6 Welder identification . 9
4.7 Welder records . 9
5 Approval of Aluminothermic Welding Contractors . 9
5.1 General . 9
5.2 Welding Quality Management System . 9
5.3 Welding Coordination . 10
5.4 Aluminothermic Welders . 10
5.5 Training . 10
5.6 Equipment . 10
5.7 Purchase, Management and Control of Consumables . 10
5.8 Weld Inspection . 10
5.9 Traceability . 10
5.10 Audits . 11
6 Acceptance of Aluminothermic Welds . 11
6.1 General . 11
6.2 Weld Inspector . 11
6.3 Weld Inspection . 11
6.4 Geometric Requirements . 11
6.5 Weld Integrity . 17
6.6 Documentation . 17
Annex A (informative) Diploma in Aluminothermic Welding of Rails . 18
Annex B (informative) Permit to Weld . 19
Annex C (normative) Check list . 20
Bibliography . 21
European foreword
This document (EN 14730-2:2021) has been prepared by Technical Committee CEN/TC 256 “Railway
applications”, the secretariat of which is held by DIN.
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 October 2021, and conflicting national standards shall
be withdrawn at the latest by October 2021.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN 14730-2:2006.
This document is the second part of the EN 14730 series which provides systems for the successful
delivery of aluminothermic welds in track.
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, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the
United Kingdom.
Introduction
This document (EN 14730-2) has five main topics:
a) approval of welding trainers;
b) approval of welding training centres;
c) qualifications of aluminothermic welders;
d) approval of aluminothermic welding contractors;
e) acceptance of welds.
This part of EN 14730 has been occasioned by a European Directive that will permit the freedom of an
open European market. To enable this perception to become a reality, it is essential a standard is in
place that satisfies the needs of the infrastructure owners or custodians and reflects the production
capabilities of the manufacturers in technical and quality terms.
1 Scope
This document specifies requirements for the:
— approval of training facilities, testing and maintaining the skills of aluminothermic welders and
welding trainers. It applies to those aluminothermic welding processes compliant with the
requirements of EN 14730-1. It requires that the system for training and testing of welders be
approved by the railway authority;
— approval of aluminothermic welding contractors. It applies to those contractors using
aluminothermic welding processes compliant with the requirements of EN 14730-1 and who
employ welders in the possession of a valid permit to weld as defined in Clause 4 of this document;
— acceptance of the final aluminothermic weld inspections and aluminothermic weld inspectors
approved by the railway authority. It does not cover any previous weld inspections by the welder
or others.
This document also applies to aluminothermic welds produced on railway rails as contained in
EN 13674-1 to EN 13674-4 and EN 16771.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
EN 14730-1, Railway applications - Track - Aluminothermic welding of rails - Part 1: Approval of welding
processes
EN ISO 3834-2, Quality requirements for fusion welding of metallic materials - Part 2: Comprehensive
quality requirements (ISO 3834-2)
EN ISO 14731, Welding coordination - Tasks and responsibilities (ISO 14731)
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— IEC Electropedia: available at https://www.electropedia.org/
— ISO Online browsing platform: available at https://www.iso.org/obp
3.1
aluminothermic welder
welder trained in an approved training centre in accordance with 3.7 and holding a permit to weld in
accordance with 4.5
3.2
contractor
company approved by a railway authority to provide staff and equipment to execute the production of
aluminothermic welds
Note 1 to entry: This may include staff and machinery from within the railway authority.
3.3
employer
company that employs approved aluminothermic welders
3.4
process manual
manual produced by the process supplier, it identifies the consumables, equipment and operating
method to be followed for all steps of the critical welding parameters
Note 1 to entry: This manual is referred to and described in EN 14730-1.
3.5
process supplier
company that provides an approved aluminothermic welding process and is approved by the railway
authority to supply consumables and tools for the execution of aluminothermic welds
Note 1 to entry: This process is accepted in accordance with EN 14730-1.
3.6
railway authority
either the railway regulator or the owner of a railway infrastructure or the custodian with a delegated
responsibility for a railway infrastructure
3.7
training centre
welder training organisation or centre approved by the process supplier and by the railway authority
3.8
weld inspector
person approved and authorised to carry out weld inspections by the railway authority
3.9
welding contractor/sub-contractor
company approved in accordance with Clause 5 of this document
3.10
welding trainer
qualified and certified trainer approved by the process supplier and authorised by the railway authority
3.11
responsible welding coordinator
person responsible and competent to perform welding coordination
3.12
examiner
person qualified by the process supplier and the railway authority to examine knowledge and skills of a
welder
4 Qualification of aluminothermic trainers and welders
4.1 Training requirements
The training and testing shall be conducted in a training centre. The process supplier shall provide the
process manual. The training shall be carried out in accordance with the supplier’s process manual. In
addition to the welding processes the initial training shall include as a minimum:
— basic safety items relating to the process;
— rail identification;
— gas equipment for preheating and cutting;
— abrasive wheels;
— portable powered plant;
— cause and effect of operating outside of the correct procedures;
— weld manufacture
...
Frequently Asked Questions
EN 14730-2:2021 is a standard published by the European Committee for Standardization (CEN). Its full title is "Railway applications - Track - Aluminothermic welding of rails - Part 2: Qualification of aluminothermic welders, approval of contractors and acceptance of welds". This standard covers: This document specifies requirements for the: - approval of training facilities, testing and maintaining the skills of aluminothermic welders and welding trainers. It applies to those aluminothermic welding processes compliant with the requirements of EN 14730-1. It requires that the system for training and testing of welders be approved by the railway authority; - approval of aluminothermic welding contractors. It applies to those contractors using aluminothermic welding processes compliant with the requirements of EN 14730-1 and who employ welders in the possession of a valid permit to weld as defined in Clause 4 of this document; - acceptance of the final aluminothermic weld inspections and aluminothermic weld inspectors approved by the railway authority. It does not cover any previous weld inspections by the welder or others. This document also applies to aluminothermic welds produced on railway rails as contained in EN 13674-1 to EN 13674-4 and EN 16771.
This document specifies requirements for the: - approval of training facilities, testing and maintaining the skills of aluminothermic welders and welding trainers. It applies to those aluminothermic welding processes compliant with the requirements of EN 14730-1. It requires that the system for training and testing of welders be approved by the railway authority; - approval of aluminothermic welding contractors. It applies to those contractors using aluminothermic welding processes compliant with the requirements of EN 14730-1 and who employ welders in the possession of a valid permit to weld as defined in Clause 4 of this document; - acceptance of the final aluminothermic weld inspections and aluminothermic weld inspectors approved by the railway authority. It does not cover any previous weld inspections by the welder or others. This document also applies to aluminothermic welds produced on railway rails as contained in EN 13674-1 to EN 13674-4 and EN 16771.
EN 14730-2:2021 is classified under the following ICS (International Classification for Standards) categories: 25.160.01 - Welding, brazing and soldering in general; 25.160.10 - Welding processes; 93.100 - Construction of railways. The ICS classification helps identify the subject area and facilitates finding related standards.
EN 14730-2:2021 has the following relationships with other standards: It is inter standard links to EN 14730-2:2006. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
EN 14730-2:2021 is associated with the following European legislation: EU Directives/Regulations: 93/38/EEC; Standardization Mandates: M/024. When a standard is cited in the Official Journal of the European Union, products manufactured in conformity with it benefit from a presumption of conformity with the essential requirements of the corresponding EU directive or regulation.
You can purchase EN 14730-2:2021 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.
SIST EN 14730-2:2021 표준은 철도 응용 분야에서 레일의 알루미노서믹 용접에 대한 매우 중요한 기준을 제공하며, 특히 알루미노서믹 용접사의 자격 부여, 계약자의 승인 및 용접의 수용에 관한 필수 요건을 명시하고 있습니다. 이 문서는 알루미노서믹 용접의 프로세스가 EN 14730-1의 요구사항을 준수하는 경우에 적용됩니다. 이 표준의 강점 중 하나는 훈련 시설의 승인, 용접사 및 용접 훈련자의 기술 유지에 대한 요구 사항을 분명히 설정하고 있다는 점입니다. 이는 철도 당국의 승인 시스템을 통해 진행되어, 안전성과 신뢰성을 보장하는 데 중요한 역할을 합니다. 또한, 알루미노서믹 용접 계약자의 승인을 위한 요구 사항을 포함하고 있어, 담당 계약자가 유효한 용접 허가증을 가진 용접사를 고용하도록 의무화하고 있습니다. 이는 용접 품질 보증을 통합적으로 관리할 수 있는 효과적인 방법을 제공합니다. 또한, 최종 알루미노서믹 용접 검사 및 철도 당국에 의해 승인된 알루미노서믹 용접 검사자의 수용 과정은 용접 품질 관리를 위한 명확한 기준을 세우고 있습니다. 이는 용접 작업의 일관성과 품질을 높이는데 기여하며, 이전의 용접 검사에 대한 규정을 명확히 하지 않음으로써 혼란을 줄이고 집중할 사항을 선명히 합니다. 결론적으로, SIST EN 14730-2:2021 표준은 알루미노서믹 용접의 과정과 관련된 모든 주요 요소들을 종합적으로 다루며, 철도 분야에서의 안전과 효율을 한층 더 강화하는 효과적인 프레임워크를 제공합니다. 이 표준은 철도 시스템에서 알루미노서믹 용접의 중요성을 부각시키고, 관련 작업자들의 필요 기술을 체계적으로 관리하는 데 필수적입니다.
The standard EN 14730-2:2021 is a critical document within railway applications, specifically directed at the track construction process through aluminothermic welding. Its comprehensive scope addresses multiple facets essential for the efficacy and safety of welding processes employed on railway rails. One of the significant strengths of EN 14730-2:2021 lies in its rigorous framework for the approval of training facilities. This ensures that both aluminothermic welders and welding trainers are adequately qualified, emphasizing the importance of skill maintenance and competency in welding practices. The standard mandates that the systems for training and testing welders receive approval from the relevant railway authority, thereby enhancing the trustworthiness of welding operations and progressively raising industry standards. Furthermore, the standard extends its application to the approval of aluminothermic welding contractors. This aspect not only guarantees that contractors are using processes compliant with EN 14730-1 but also that they employ welders with valid welding permits. This dual approval mechanism plays a vital role in maintaining a high level of quality in welding works across railway systems. The acceptance criteria for final aluminothermic weld inspections outlined in the document also stand out as a crucial component. By specifying that inspections must be conducted by qualified aluminothermic weld inspectors sanctioned by the railway authority, the standard helps assure the reliability of welds, minimizing the risk of structural failure in railway tracks. The relevance of EN 14730-2:2021 is underscored by its alignment with broader safety and quality requirements in railway construction. Additionally, the inclusion of references to related standards such as EN 13674-1 to EN 13674-4 and EN 16771 ensures a cohesive approach within the regulatory framework governing railway welds. In summary, EN 14730-2:2021 effectively sets forth a clear and structured methodology for the training, approval, and inspection processes related to aluminothermic welding on railway tracks, establishing a robust foundation for safe and efficient railway operations.
標準「EN 14730-2:2021」は、鉄道アプリケーションにおけるレールのアルミノサーモウエルディングに関する包括的な要求事項を設定しており、資格を取得したアルミノサーモウエルダーの訓練、契約者の承認、及び溶接の受け入れに関する基準を示しています。この文書の範囲は、鉄道産業におけるアルミノサーモウエルディングの品質と安全性を確保する上で非常に重要です。 この標準の強みは、アルミノサーモウエルダーと溶接訓練者のスキルの向上を図るために必要な訓練施設の承認およびその維持に関する具体的な基準を提供している点です。さらに、鉄道当局による承認が必要なため、業界全体の一貫性と信頼性を促進します。また、アルミノサーモウエルディング契約者に対する承認基準も明確であり、これにより資格を持つ溶接者の雇用が保証されます。 加えて、最終的なアルミノサーモウエルドの検査と、鉄道当局に承認されたアルミノサーモウエルド検査官による受け入れ基準が含まれており、これにより溶接の品質が適切に評価されます。このような詳細な基準は、鉄道の安全性や運行の効率性を大幅に向上させる要素となります。 「EN 14730-2:2021」は、鉄道業界におけるアルミノサーモウエルディングのプロセスを標準化し、より安全で高品質なレールシステムを実現するための重要なドキュメントです。この標準の導入により、訓練、承認、そして品質管理の透明性が向上し、業界全体の信頼性が高まることが期待されます。このように、アルミノサーモウエルディングに関連するすべての利害関係者にとって価値のある基準として位置づけられています。
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