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Shenzhen Kaishengda Cable Co.,Ltd.
Mobile: 008618073118925
Tel:0086-0731-89722718
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E-mail:sales@ksdfibercable.com
Address: Tian Xin Second Industrial Park,Shangwu Street,Shangwu Community,Shiyan Street,Baoan District,Shenzhen,Guangdong
OPGW on - line use status
In China's electric power system, only lines with 110 kV or more of double ground wires installed on the whole line have the basic bars to use OPGW. Since about 1998, China has been using OPGW on a large scale, and now the number of OPGW erected in China is about 70,000km, and the use and research of OPGW is basically focused on 220kV and above voltage grade lines. There are few references to 110kV lines, and even if they are mentioned, they are not in favor of the use of OPGW on 110kV lines. The main reason should be to 110kV lines The research of the road is not as deep as that of the 220kV line, simply comparing the straightness of the reinforced concrete poles used by the two The diameter is 300mm and 400mm respectively, and the top of 220kV line pole Pre-machining ground wire support is used only if necessary Material reinforcement or model size can be used safely, tower structure The advantages of OPGW in 220 kV lines are affirmed.
Because OPGW can make the construction of communication line and power line the same Step by step, many local bureaus require promotion on new 110kV lines Using OPGW, but in OPGW it is inevitable that the load increases in reality and In the absence of sufficient design data and operation experience, whether OPGW can be used on 110 kV lines, line workers must fully consider the selection of OPGW and the two aspects of tower structure.