钢轨和线路构件标准-分析测试百科网

ISO 23300-1:2021 铁路基础设施钢轨焊接第1部分:钢轨焊接的一般要求和试验方法

This document specifies requirements concerning the approval and/or homologation of welding processes, contractors, welders, inspectors and acceptance of welded joints in the factory and/or track. This document is applicable to the following rail welding processes: a) flash butt welding (FBW); b) gas pressure welding (GPW); c) aluminothermic welding (ATW); d) enclosed arc welding (EAW). In this document, 43 kg/m to 75 kg/m new flat-bottomed rails of the same profiles and same steel grades are used as the subject of welding. This document does not specify requirements or test methods specific to each welding process. These are to be prescribed in the subsequent parts of the ISO 23300 series. Concerning butt welding, this document is restricted to connecting rail ends. This document does not cover the welding for construction of crossings, railway switches, signal bond installation or restoration of rails. This document does not cover any safety regulations for welding operations. In this document, the qualifications of individuals and organizations that are approved by the railway authority for rail welding are not specified.

Railway infrastructure — Rail welding — Part 1: General requirements and test methods for rail welding

ICS: 45.080
CCS
发布: 2021-08-04
实施

ISO 22074-7:2021 铁路基础设施.轨道紧固系统.第7部分：夹紧力和上抬刚度的试验方法

Railway infrastructure - Rail fastening systems - Part 7: Test method for clamping force and uplift stiffness

ICS: 45.080
CCS
发布: 2021-08-00
实施

SN/T 5301-2021 进口钢轨钢检验规程

Inspection regulations for imported rail steel

ICS: 45.080
CCS: H52
发布: 2021-06-18
实施: 2022-01-01

DS/ISO 22074-5:2021 铁路基础设施铁路扣件系统第5部分：电阻测试方法

Railway infrastructure – Rail fastening systems – Part 5: Test method for electrical resistance

ICS: 45.080
CCS
发布: 2021-06-04
实施: 2021-06-04

ONR CEN/TS 15427-2-2-2021 铁路应用轮/轨摩擦管理第 2-2 部分：特性和特征轨道材料顶部

Railway applications - Wheel/Rail friction management - Part 2-2: Properties and Characteristics - Top of Rail materials

ICS: 45.080
CCS
发布: 2021-05-15
实施: 2021-05-15

ISO 22074-5:2021 铁路基础设施.轨道固定系统.第5部分：电阻试验方法

This document specifies a laboratory test procedure for determining the electrical resistance, in wet conditions, between the running rails provided by a fastening system fitted to a steel or concrete sleeper, bearer or element of ballastless track. It is also applicable to embedded rail. This test procedure applies to a complete fastening assembly. It is relevant to signalling currents, not to traction currents. A reference procedure and an alternative procedure are included.

Railway infrastructure - Rail fastening systems - Part 5: Test method for electrical resistance

ICS: 45.080
CCS
发布: 2021-05-00
实施

PN-EN 13231-2-2021-04 E 铁路应用轨道工程验收第2部分：平线、道岔、交叉路口和扩展装置中改造钢轨的验收

Railway applications -- Track -- Acceptance of works -- Part 2: Acceptance of reprofiling rails in plain line, switches, crossings and expansion devices

ICS: 45.080
CCS
发布: 2021-04-21
实施: 2021-04-21