铝包钢芯铝绞线拉断力影响因素研究  

Study on the Influence Factors of ACSR / AS Cable Breaking Force

作　　者：王文辉 王玉 康小龙 周聪 蔡炎烽 尤新祥 WANG Wenhui;WANG Yu;KANG Xiaolong;ZHOU Cong;CAI Yanfeng;YOU Xinxiang(Jiangsu Zhongtian Technology Co.,Ltd.,Nantong 226463,China;Zhongtian Power Optical Cable Co.,Ltd.,Nantong 226463,China)

机构地区：[1]江苏中天科技股份有限公司,南通226463 [2]中天电力光缆有限公司,南通226463

出　　处：《电线电缆》2022年第1期29-33,共5页Wire & Cable

摘　　要：铝包钢芯铝绞线是电能输送的主要渠道,但在出厂检验及施工验收时经常遇到拉断力实测值小于设计值的情况,困扰着厂家及施工验收方。以标准规定的铝包钢芯铝绞线设计值计算方法为依据,通过试验验证的方式分析各因素对铝包钢芯铝绞线拉断力实测值的影响。通过试验分析发现,铝包钢单线的抗拉强度、伸长率及拉断力测试时配套金具的选择是影响铝包钢芯铝绞线拉断力实测值的主要因素。其中,铝包钢单线的伸长率和配套金具对拉断力实测值的影响更大,结果可对铝包钢芯铝绞线的生产、检验和验收提供参考和指导。ACSR/AS is the electric energy transmission channel mainly,but in factory inspection and construction acceptance,the measured value of tensile force is often less than design value,which troubles manufacturers and construction acceptance party.Based on the ACSR/AS design value calculation method in the standard,the influence of various factors on the ACSR/AS breaking force was analyzed by means of test verification.It is found that the tensile strength of AS wire,the elongation of AS wire and the choice of fittings in test are main factors that affect breaking force measured value of ACSR/AS.Among them,AS wire elongation and fittings have greater influence on the measured value of breaking force,which can provide reference and guidance for the production,inspection and acceptance of ACSR/AS.

关 键 词：铝包钢芯铝绞线 拉断力 伸长率 压接管 预绞丝 

分 类 号：TM752[电气工程—电力系统及自动化]