±800 kV特高压直流输电工程OPGW光缆选型研究

Research on Design and Selection of OPGW Optical Cable for ±800 kV UHV DC Transmission Engineering

OPGW光缆不仅是特高压输电线路防雷的重要屏障,还承担着特高压电网"神经中枢"的关键作用。在特高压运行环境下,应科学设计选型OPGW光缆,确保其安全可靠运行。OPGW光缆设计选型作为特高压光纤通信工程设计的一项重要内容,需充分考虑OPGW光缆的电气性能、机械性能、传输性能和经济性等方面因素。以锡盟—泰州±800kV特高压直流输电光纤通信工程为例,在重点讨论分析OPGW光缆结构型式、光缆纤芯类型、光缆纤芯需求数量等性能指标的基础上,提出了±800 kV特高压直流运行环境下OPGW光缆设计选型的技术要点。

OPGW fiber optic cable is not only a key component of the lightning shielding of the ultra-high-voltage transmission line,but also served the important role as the＂nerve center＂of the ultra-high-voltage transmission lines.OPGW fiber optic cable should be selected properly to ensure the safe and reliable operation.The proper selection of the OPGW fiber optic cable as an important task of the UHV optical fiber communication design should be carefully considered based on the requirement of the OPGW optical cable electrical performance,mechanical properties,transmission performance and economy and other factors.Based on the analysis of OPGW cable structure,OPGW fiber core type,OPGW fiber core quantity demand and other performance indicators of the example of ±800 kV HVDC optical fiber communication project from Ximeng to Taizhou,the key points of the project design and selection of OPGW optical cable are summarized and presented.