压力下户外使用的聚合物材料的选择指南

[中文适用范围]： 本 IEC 技术报告介绍了户外绝缘材料中使用的聚合物材料的重要材料特性，并在适用的情况下列出了标准化测试方法，包括最低要求。如果没有可用的标准化测试，则总结文献中报道的测试方法。该报告适用于系统电压大于 1000 V 交流、具有聚合物绝缘的户外高压电气应用中使用的绝缘材料，还包括外壳是设备组成部分的应用，例如避雷器和电缆终端。本报告的范围仅限于材料。绝缘子的使用性能取决于材料类型、设计、环境条件等多种因素。因此，选择满足下列要求的材料是必要条件，但并不能保证在户外使用时具有满意的性能绝缘。 [外文原描述]： Presents the important material properties for polymeric materials used in outdoor insulation and, where applicable, lists the standardised test methods including the minimum requirements. If no standardised tests are available, then test methods reported in literature are summarised. This report is valid for insulating materials used in outdoor high voltage electrical applications with a system voltage greater than 1000 V a.c. having polymeric insulation including also such applications where the housing is an integral part of the devices e.g. in surge arrestors and cable terminations. The scope of this report is limited to the materials only. The performance of insulators in service depends on several factors such as the type of material, the design, environmental conditions etc. Consequently, the choice of materials that fulfil the requirements listed below is a necessary condition but does not guarantee satisfactory performance when used in outdoor insulation