T/CAPEC 18-2020 Active

Scope: This document specifies the basic technical requirements for equipment supervision services related to the manufacturing process and quality of thyristor converter valves used in DC transmission. This document applies to the supervision of the manufacturing of thyristor converter valves with water cooling, air insulation, and indoor installation. Other types of thyristor converter valves can be referenced for implementation. Main technical content: (1) This standard specifies the basic technical requirements for equipment supervision services related to the manufacturing process of thyristor converter valves used in DC projects. It applies to the equipment supervision activities carried out by equipment supervision units for thyristor converter valves, including basic requirements for supervision services, pre-production inspections, inspections of raw materials and components, witnessing the manufacturing and assembly processes, witnessing routine tests, witnessing type tests, and inspecting packaging and shipment. (2) To standardize and unify the terminology of thyristor converter valves and other related equipment, important terms and definitions related to the supervision of thyristor converter valve manufacturing are proposed. (3) The supervision implementation process related to manufacturing quality is clearly defined. Appendix "A" is the main witnessing point project list for the supervision of thyristor converter valve manufacturing, and Appendix "B" is a reference template for various forms used by supervision units during the supervision process.