Railway applications. Track. Aluminothermic welding of rails - Qualifications of aluminothermic welders, approval of contractors and acceptance of welds
Railway applications. Track. Aluminothermic welding of rails - Qualifications of aluminothermic welders, approval of contractors and acceptance of welds
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1 Scope This standard applies to aluminothermic welds made on Vignole rails of 46 kg/m and above as contained in EN 13674‑1: This standard specifies:
— the system for training, testing and maintaining the skills of aluminothermic welders . It applies to those aluminothermic welding processes compliant with the requirements of EN 14730‑1 "Railway applications – Track – Aluminothermic welding of rails – Part 1: Approval of welding processes". It requires that the system for training and testing of welders shall be approved by the relevant railway authority ;
— the systems and requirements for the approval of aluminothermic welding contractors. It applies to those contractors using aluminothermic welding processes compliant with the requirements of EN 14730‑1 "Railway applications - Track - Aluminothermic welding of rails - Part 1: Approval of welding processes" and who employ welders who are in possession of a valid Permit to Weld as defined in Clause 4 of this standard;
— the acceptance requirements for aluminothermic welds. It requires that weld inspectors are competent in aluminothermic weld inspection and are approved by the relevant railway authority . It covers the final inspection of aluminothermic welds for acceptance in track. It does not cover any previous inspections by welders or others.
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