3类节能导线性能对比与适用范围

近年来，随着中国电网建设的发展，国内导线设计制造技术发展迅速。针对钢芯高导电率硬铝绞线、铝合金芯高导电率铝绞线和中强度铝合金绞线3类新型节能导线的技术特性，开展了性能对比与适用范围研究。结合导线电气、机械性能开展了性能对比；结合导线耐张线夹、接续管方案开展了配套金具对比；结合杆塔塔头间隙和杆塔荷载开展了杆塔影响研究；结合施工机具、放线和压接开展了导线施工技术研究；综合上述研究结论给出了3类新型节能导线的应用指导意见。

Performance Comparison and Application Scope of Three Kinds of Energy-Saving Conductors

In recent years, China has witnessed significant progress in the design and manufacturing technologies of electric conductors. Based on the technical characteristics of three new types of energy-saving conductors, including high conductivity aluminum conductor steel reinforced, high conductivity aluminum conductor aluminum alloy reinforced and medium strength all aluminum alloy conductor, a study is carried out in this paper on the performance and application scope of above-said conductors. The performance of the conductors is compared in terms of electrical and mechanic characteristics. Also, the complete fittings are compared according to their strain clamp and splicing sleeve schemes. The effects of tower head gap and tower load on towers are studied. The construction technology is investigated from construction equipment, conductor pay-off and crimping. Based on the above-said study results, guidelines are proposed for application of three new types of energy-saving conductors.