Improving short-circuit current capacity, resistance, and breaking load of OPGW constructions by modifying aluminium alloy with AlB2

被引：1

作者：

Karabay, S ^{[1
]}

Taysi, Y ^{[1
]}

机构：

[1] Turkkabo AO, Aluminium Conductor Factory, Kocaeli, Turkey

来源：

MATERIALS AND MANUFACTURING PROCESSES | 2004年 / 19卷 / 06期

关键词：

OPGW; fiber optic; AA-6101; wire; AlB2; AlB12; short-circuit; breaking load; conductivity; inoculation; planetary stranding; master alloy; boride; Mathiessen's rule; aluminum-cladded steel wire; ground wire;

D O I：

10.1081/LMMP-200035293

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This article presents a method that can be applied to molten AA-6101 alloy to improve electrical properties of the aluminium part of the optical ground wire (OPGW) used in overhead transmission lines to protect phase conductors from lightning strike and to transmit signals and data. AA-6101 alloy in casting of the log as 6 m length and 178 mm diameter for extrusion has been inoculated by AIB(2) to decrease detrimental effects of Cr, Ti, V, and Zr on the conductivity of the material. After inoculation, improved billets were extruded as 9.5 mm diameter feedstock. Required wires drawn from the feedstock according to the construction types of OPGW to be tested were exposed to aging at 175 degreesC, 6 h (T-8). Upon completion of the back-twist and performing-type stranding process, resistance, and short-circuit current capacity and breaking load of the OPGW 88/44 constructions with other metal combinations have been examined and tested to show improvement. Results are summarized in tables and graphically.

引用

页码：1157 / 1169

页数：13

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