楔型线夹在跨江直线塔工程中的应用  

Application of Strain Clamp(Wedge Type)on Crossing-River Tangent Tower

作　　者：戚柏林[1] 

机构地区：[1]绍兴电力局,浙江省绍兴市312000

出　　处：《电力建设》2008年第6期79-81,共3页Electric Power Construction

摘　　要：220kV舜江至滨海输电线路工程中,在曹娥江大跨越耐张段直线塔上,使用了悬垂串楔型线夹。楔型线夹可消除与导线微风振动动态应力相同方向的弯曲应力和重量引起的压应力,并且其握力强度引起的导线压应力在导线周围均匀分布,使里外层铝股紧紧地合在一起,每股导线受力一致,大大减轻了导线振动伤害。In construction of the 220 kV transmission line from Shunjiang to Binghai, which has a tension section across the Cao-e river, the suspension string strain clamps （wedge type） on the across- river tangent tower was used. The clamp can eliminates the bending stress in the same direction to the conductor arelian vibration dynamic stress and compression caused by weight. The conductor compression stress casued by its holding strength is distributed uniformly around the conductor, which leads to closed outer aluminum strands and each strand is forced equally, which has greatly reduces conductor vibration damage.

关 键 词：悬垂串 楔型线夹 金具组合 

分 类 号：TM752[电气工程—电力系统及自动化]