T/CAS 944-2024 Railway long-distance symmetric communication cable

Scope

Main Technical Content: 1. Scope This document specifies the models and markings, requirements, test methods, inspection rules, packaging, transportation, storage, installation, and usage requirements for long-distance low-frequency communication cables used in railway construction. The document applies to the design, development, production, and inspection of railway long-distance symmetrical communication cables (hereinafter referred to as "cables") installed via methods such as pipeline, direct burial, and tunnels (passages). 2. Normative Reference Documents The content of the following documents is an integral part of this document through normative references. Among them, the dated reference documents apply only to the version corresponding to that date; the undated reference documents apply to the latest version (including all amendment sheets) of the document. - GB/T 242: Metal Pipes - Flaring Test Method (ISO 8493:1998, IDT) - GB/T 2951.11: General Test Methods for Insulation and Sheath Materials of Cables and Optical Cables - Part 11: General Test Methods - Thickness and Outline Dimension Measurement - Mechanical Performance Test (IEC 60811-1-1:2001, IDT) - GB/T 2951.12: General Test Methods for Insulation and Sheath Materials of Cables and Optical Cables - Part 12: General Test Methods - Heat Aging Test Method (IEC 60811-1-2:1985, IDT) - GB/T 2951.13: General Test Methods for Insulation and Sheath Materials of Cables and Optical Cables - Part 13: General Test Methods - Density Determination Method - Water Absorption Test - Shrinkage Test (IEC 60811-1-3:2001, IDT) - GB/T 2951.14: General Test Methods for Insulation and Sheath Materials of Cables and Optical Cables - Part 14: General Test Methods - Low Temperature Test (IEC 60811-1-4:1985, IDT) - GB/T 2951.31: General Test Methods for Insulation and Sheath Materials of Cables and Optical Cables - Part 31: Special Test Methods for Polyvinyl Chloride Compounds - High Temperature Pressure Te

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