摘要
目前国内采用的单回路紧凑型线路相导线分裂根数多，线（相）间距离小，因而档距中央线（相）间距离的选取就成为决定紧凑型线路技术参数的关键问题之一。文中根据国内外有关资料对500kV紧凑型线路档距中央线（相）间距离的选取进行了综合论述与验证，并结合工程情况提出相间间隔棒的安装建议，如按操作冲击耐压强度的要求，其不应小于4．85m。文章认为，500kV紧凑型线路线（相）间距离采用6．7m时，档距在600m及以下的可不必安装相间间隔棒；档距大于700m时需安装相间间隔棒；档距在600-700m之间时，在风口等特殊地段需安装相间间隔棒。
Since the multi-split conducors are adopted in domestic compact transmission line of single circuit,the selection of line（phase） spacing in span centrality becomes the one of key problem of deciding the technical parameters of compact transmisston line.The paper discussed and verified comprehensively the selection of line（phase）spacing in span centrality of 500kV compact transmission line according to domestic and international relevant information,and put forward the suggestion of the installation of phase spacer combined with project condition,which should not be less than 4.85m according to the requirements of operating impulse withstand voltage.The conclusion is that the phase spacer can not be installed if the line（phase）spacing of 500kV compact transmission line is with 6.7m and the span is with 600m and below,when the span is in 600-700m and in the special sections such as air opening,the phase spacer shoule be installed.
出处
《电力设备》
2006年第3期56-58,共3页
Electrical Equipment
关键词
紧凑型线路
线(相)间距离
操作过电压
导线风偏摆动
相间间隔棒
compact transmission line
line（phase） spacing
operating over-voltage
conductor swing with wind
phase spacer
