钢芯铝型线绞线与钢芯铝绞线的主要性能对比.pdf

2012年第1期
电线电缆
2012年2月
Flectric Wire & Cable
钢芯铝型线绞线与钢芯铝绞线的主要性能对比
江建华
(江苏通光强能输电线科技有限公司,江苏海门226100)
摘要∷提出了导线截面利用率的概念,基于S、Z铝型线导体,给出了几种与常用规格圆线同心绞钢芯铝绞线
对应的型线同心绞钢芯铝型绞线,将两者的部分基本参数和特性作了对比。结果表明:型线同心绞的钢芯铝
型线绞线比圆线同心绞钢芯铝绞线的导体截面利用率约高15%,若截面积相等,钢芯铝型线绞线的直径约減
小9%,其他性能几乎相同;若两者直径相等,则钢芯铝型线绞线的导体截面积、单位质量和抗拉力较大,同时
直流电阻减小而载流量增大。钢芯铝型线绞线的安装可采用常规金具,具有一定的缓覆冰性能和较好的弧垂
特性,将是输电线路使用中的一种重要线种。
关键词:圆线同心绞;型线同心绞:钢芯铝绞线;钢芯铝型线绞线;导体截面利用率
中图分类号:TM244.2
文献标识码:A
文章编号:1672-6901(2012)01-0019-04
Main Performances Compare between Steel Reinforced Formed
Aluminum Conductor and Steel Reinforced Aluminum Conductor
JANG Jianhua
(Jiangsu Tongguang Transmission lines Technology Co., I td, Haimen 226100, China
Abstract The concept of cross-section utilization factor of conductor is first proposed. Iase on S formed aluminum
conductors, some basic parameters and characteristics of formed aluminum wire steel reinforced, concentric lay stran
ded conductors corresponding to common round aluminum wire steel reinforced, concentric lay stranded conductors
Te compared with the latter conductors. The cross-section utilization factor of the former conductors is 15%o higher
than that of the latter conductors, That means the former conductors with same cross section to and 9 ess diamete
of the latter conductors will have similar performance to the latter conductors. In same diameter, the former conductors
will have larger cross-section, bigger unit mass, better tensile strength, smaller D resistance and bigger current-tarry
ing capacity compared to the latter conductors. The installation of formed aluminum wire, steel reinforced, stranded
conductors could utiline norma hardwares and attachments In concusions the formed aluminum wire steel reinforced
stranded conductors will be a key conductor product for power transmission lines with better performance under ice
d and sag fo
Key words round wire concentric lay stranded conductors, formed wire concentric lay stranded conductors, alumi
num wire steel reinforced stranded conductors formed aluminum wire steel reinforced stranded conductors, cross
tection utilization factor of conductor
0引言
在产品方面,有与IEC61089:1991对应的国家
标准GB/T11792008《圆线同心绞架空导线》。该
虽然近年来有一些新型导线问世和应用,国内标准覆盖了包括铝绞线、铝合金绞线、钢芯铝绞线、
外输电系统中的相导线主要还是以圆线同心较的钢钢芯铝合金绞线、铝合金芯铝绞线、铝包钢芯铝绞
芯铝绞线为主,钢芯铝绞线在国际上已有超过100线、铝包钢芯铝合金绞线、钢绞线、铝包钢绞线等几
年的应用历史和成熟经验。国内已形成了一整套从乎所有的架空输电线路用各类架空绞线。其中,对
产品到工程设计、施工和运行维护的严密规范,最大L系列钢芯铝绞线推荐了标称截面积从16~11250
截面达1000mm2,已应用于交流1000kV和直流±mm2的37个规格号,对应于GlA~C3A钢芯,派生
800kV特高压输电线路
出了185个规格。
2006年3月,我国首次发布了与IEC62219:
收稿日期:20110616
2002一致性程度为等同的国家标准CB/"T20141
作者简介:江建华(1976-),男,工程师
2006《型线同心绞架空导线》,对由形状为S、T成型
作者地址江苏海门市大生路3966号26100
单线制造的导线提出了典型结构型式,举出了19个
O1994-2012ChinaAcademicJournalElectronicPublishingHouse.Allrightsreservedhttp://www.cnki.net