This document stipulates the evaluation index system, evaluation methods and grade classification for the quality and enterprise standard level evaluation of angle steel for UHV transmission towers. This document is applicable to the quality and enterprise standard level evaluation of angle steel for UHV transmission towers (hereinafter referred to as angle steel). Relevant agencies can refer to this document when carrying out quality grading and corporate standard level assessment, "leader" evaluation and related certifications. Enterprises can also refer to this document when formulating corporate standards.
T/SSEA 0218-2022 history
2022T/SSEA 0218-2022 Quality classification and "Linpaozhe" evaluation requirements for angle steel for UHV transmission towers