GB/T 2951.42-2008
ActiveCommon test methods for insulating and sheathing materials of electric and optical cables - Part 42:Methods specific to polyethylene and polypropylene compounds - Tensile strength and elongation at break after conditioning at elevated temperature - Wrapping test after conditioning at elevated temper
电缆和光缆绝缘和护套材料通用试验方法 第42部分：聚乙烯和聚丙烯混合料专用试验方法 高温处理后抗张强度和断裂伸长率试验 高温处理后卷绕试验 空气热老化后的卷绕试验 测定质量的增加 长期热稳定性试验 铜催化氧化降解试验方法
Application Summary AI generated
This standard specifies test methods for evaluating the thermal aging resistance of polyethylene and polypropylene compounds used as insulating and sheathing materials in electric and optical cables. It is applied in quality control and type testing of cable materials, particularly to assess tensile strength, elongation, wrapping performance, mass increase, long-term thermal stability, and copper-catalyzed oxidative degradation after exposure to elevated temperatures. The standard ensures that cable materials meet durability requirements for applications in power transmission, telecommunications, and industrial environments where thermal stress is a concern.