220kV门型双钢管杆的试验研究  

Test and research on 220 kV H-frame double-steel-tube pole

作　　者：李敏生[1] 刘宏滨[1] 

机构地区：[1]广东省电力设计研究院,广东广州510600

出　　处：《广东电力》2003年第4期37-39,共3页Guangdong Electric Power

摘　　要：22 0kVZHG门型直线双钢管杆外形美观 ,不带拉线 ,占地面积小 ,运行安全可靠 ,适用于对净空及环境要求严格的城网送电线路。为检验承载后杆型的强度和挠度 ,进行了真型试验。按照技术规程 ,设计了两种最不利情况的荷载组合进行试验。试验结果表明 ,此杆型满足设计要求 ,但主杆接头和叉梁结点的原设计不太理想。最后 ,对主杆接头和叉梁结点的设计进行了改进。The 220 kV ZHG Hframe straightline doublesteeltube pole,with good appearance,guyless and spacesaving features and high reliability,is suitable for urban transmission lines having strict clearance and environment requirements.To verify the strength and deflection of the loaded pole,an actual test is made with the two most unfavorable load combinations designed by technical codes.The test results show that poles of this type meet design requirements except for some defects in the design of the main pole joint and Xbrace node.Some improvements on the design are made at last.

关 键 词：送电线路 电杆 220kV门型双钢管杆 试验 

分 类 号：TM726[电气工程—电力系统及自动化] TM753