Technical Specifications for T/CCTAS 203-2025, a Loose-Prevention Fastening Device with Cone Pressure Clamping Structure for Railway Traction Power Supply Networks
T/CCTAS 203-2025 Technical specification for threaded joint structure cone clamping type anti-slip fastening device for rail transit contact network
Basic Information
Scope
Main technical content: This document specifies the structure and specifications, technical requirements, and testing and inspection of the cone-pressure clamping anti-loosening fastening devices for threaded substructures. It is applicable to the manufacture, inspection, and application of cone-pressure clamping anti-loosening fastening devices made of stainless steel materials for rail transit contact networks. The formulation of this standard standardizes the design and manufacture of cone-pressure clamping anti-loosening fastening devices for threaded substructures in China, and changes the current situation where there are no standardized product standards for the selection of anti-loosening fasteners in engineering applications. It enables domestic fasteners to have more scientific, rigorous, and advanced standards for assessing their anti-loosening performance.