我国特高压输电线路OPGW的设计思路初探

Research of design instance using OPGW for UHV in China

对于我国正在规划设计的特高压电网,可借鉴的设计和应用经验不多。文章通过简单总结国外为数不多的特高压OPGW应用经验,认为特高压OPGW必须具有良好的防雷特性、防振特性和与环境的和谐性等技术特点。在此基础上,分析提出特高压OPGW的系列设计思路和建议,如采用更大单丝直径的全铝包钢绞合OPGW、设计双OPGW地线、设计使用新型的内层压缩型低噪音耐雷OPGW,进行OPGW选型和系列研究分析,为特高压电网提供结构合理、性能优良的新型OPGW产品。

There are fewer experiences about using OPGW for UHV in China. The paper simply summarized a few applied experiences of OPGW for UHV abroad, it is thought that UHV OPGW must have good characteristic about lightning protection, anti-vibration and concordance with environment and so on. Based on it some design proposals and suggestions about UHV OPGW were brought forward, such as using bigger monofilament diameter and aluminum clad steel wire OPGW ; double OPGW grounding design and using new inner contractive layer, low noise and lightning protection OPGW. The study and analysis of OPGW type and series selection can provide the reference to adopt which kind of reasonable structure and good performance OPGW products for UHV network.