特高强度钢芯高强度耐热铝合金绞线在大跨越增容改造工程中的应用Application of a High-strength Heat Resistant Aluminum Alloy Stranded Conduct with Ultrahigh-strength Steel Core in Long-span Capacity Expansion Projects
齐敦金,王克银,许彦
QI Dunjin,WANG Keyin,XU Yan
摘要(Abstract):
围绕夹江大跨越工程增容目标,依据原线路的设计条件,考虑跨越夹江弧垂和线路防雷导地线间距要求等因素,结合国内一些大跨越工程导线选型情况,对JNRLH2/G5A-360/80特强钢芯高强耐热铝合金绞线、 JNRLH2/G4A-360/100特强钢芯高强耐热铝合金绞线、 JLRX/T-400/65碳纤维复合芯铝绞线等3种导线进行比选论证。推荐JNRLH2/G4A-360/100特强钢芯高强耐热铝合金绞线用于夹江大跨越工程增容改造,可节省大量工程投资,缩短停电时间,方案经济合理。同时,为做好导线微风振动防治工作,进行了导线自阻尼试验和防振锤功率特性试验分析,为夹江大跨越工程的跨越档、锚线档提供了合理的防振方案。
Centered on capacity increase of Jiajiang long-span project, the paper, in view of design conditions of the original lines, sags of the long span and wire clearance requirements of lightning protection grounding and conductor selection for long span projects in China, compares and demonstrates JNRLH2/G5 A-360/80 ultrahigh-strength heat resistant aluminum alloy stranded conductor, JNRLH2/G4 A-360/100 ultrahigh-strength heat resistant aluminum alloy stranded conductor and JLRX/T-400/65 carbon-fiber composite core aluminum stranded conductor. The JNRLH2/G4 A-360/100 ultrahigh-strength heat resistant aluminum alloy stranded conductor is recommended to Jiajiang long-span capacity expansion project. The scheme is economical and rational on account of saving massive project investment and curtailing outage duration. For prevention and treatment of aeolian vibration of conductors, an internal damping test and vibration damper power performance test were conducted to present a rational vibration prevention scheme for crossing spans and anchor line spans.
关键词(KeyWords):
大跨越;增容改造;特强钢芯高强耐热铝合金绞线;防振方案
long span;capacity expansion;ultrahigh-strength core heat resistant aluminum alloy conductor;vibration prevention scheme
基金项目(Foundation): 国家自然科学基金项目(52077215);; 国网江苏电力公司科技项目(J2020047)
作者(Author):
齐敦金,王克银,许彦
QI Dunjin,WANG Keyin,XU Yan
DOI: 10.19585/j.zjdl.202106011
参考文献(References):
- [1]谢荣坤,潘春平,桂重.特强钢芯高强耐热铝合金绞线在大跨越输电工程中的应用[J].电力建设,2012,33(1):46-49.
- [2]鲁景星,王钢,李健,等.±500 kV吉阳大跨越输电线路增容改造导线选择[J].电力建设,2009,30(2):33-36.
- [3]杜雪松,隋高山,牛雪松.碳纤维复合芯导线在大跨越输电线路增容改造工程中的应用[J].电工材料,2014(4):43-46.
- [4]李聚聪,郅啸,陈静殊.新型导线在厦门220 kV跨海通道增容改造中的应用[J].青海电力,2008,27(增刊1):69-73.
- [5]电力规划设计总院.110 kV~750 kV架空输电线路大跨越设计技术规程:DL/T 5485-2013[S].北京:中国计划出版社,2013.
- [6]国家电网公司.特高强钢芯铝合金绞线:Q/GDW 11275-2014[S].北京:国家电网公司,2014.
- [7]国家电网公司.碳纤维复合材料芯架空导线:Q/GDW10851-2016[S].北京:国家电网公司,2016.
- [8]万建成,刘龙,刘臻.特高强钢芯铝合金绞线标准解读[J].智能电网,2015,3(5):463-466.
- [9]杜威,王大朋.碳纤维复合芯导线在高压架空输电线路中的应用[J].高电压技术,2015,41(增刊):3-5.
- [10]耿江海,周松松,岂小梅.碳纤维复合芯导线与钢芯铝绞线的起晕特性对比试验[J].中国电力,2015,48(1):76-80.
- [11]韩国聚,许绍良,刘广增.JRLX/T型碳纤维复合芯导线的特性及工程应用[J].电力建设,2012,33(2):75-78.
- [12]高媛.碳纤维复合芯导线在大跨越增容工程中的应用[J].电力勘测设计,2019(5):31-34.
- [13]国家电网公司.输电线路微风振动监测装置技术规范:Q/GDW 245-2010[S].北京:中国电力出版社,2010.