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The Japanese developed a new low arc sag of overhead aluminium wire carbon fiber core

Information Source:Henan Huadong Cable Co., Ltd Release date:2014-04-08

The Japanese developed a arc sag and weight than the ACSR (ACSR) much smaller carbon fiber new aerial aluminum wires ACFR and TACFR. The biggest characteristic of wire is can ensure maximum line of security, large transmission capacity, and the wire sag is much smaller than ordinary ACSR.

Different carbon fiber core used by Japanese aerial conductors and American CTC company, instead of using carbon fiber twisted core, its features are: the weight ratio of steel strand small 20%; coefficient of thermal expansion than the steel strand small 8%; while the tensile strength and the steel strand as large.

At present, Japan has two kinds of carbon fiber overhead conductors: one is outside the carbon fiber type and then twisted hard wire and into the ACFR; the other is heat-resistant aluminum alloy wire outside the carbon fiber heat-resistant core cutter and TACFR.

According to the introduction, in the span of 300 meters, ACFR at 90 ℃ continuous allowed working temperature of arc sag, than ordinary ACSR decreases about 2 meters; and TACFR at 150 ℃ continuous allowed working temperature of arc sag, about than ordinary steel cored aluminum strand (TACSR) decreased 2.8 meters.

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