基于壓管法的電纜分割導(dǎo)體直流電阻測試方法
張恒瑋,黃玉蘭,潘仁勇,劉濤,毛開裕,蔣東旭
(尚緯股份有限公司,四川 樂山 614001)
摘 要:針對(duì)傳統(tǒng)電纜分割導(dǎo)體直流電阻測試方法中測試結(jié)果準(zhǔn)確度較低、分散性較大的問題,提出一種基于壓管法的電纜分割導(dǎo)體直流電阻測試方法。該方法利用液壓裝置和銅管對(duì)電纜分割導(dǎo)體進(jìn)行緊壓定型,可有效減少股塊或單線之間導(dǎo)體的接觸電阻,提升直流電阻測試結(jié)果的準(zhǔn)確性。實(shí)際測試結(jié)果表明,相比于傳統(tǒng)方法,因?yàn)樵摲椒苡行Ы档凸蓧K和單線之間導(dǎo)體的接觸電阻,所以能提升測試結(jié)果的準(zhǔn)確性,為電纜分割導(dǎo)體直流電阻測試提供了新的思路。
關(guān)鍵詞: 分割導(dǎo)體;V 型夾具;導(dǎo)體直流電阻;試樣處理;壓管法
中圖分類號(hào):TM934.12 文獻(xiàn)標(biāo)識(shí)碼:B 文章編號(hào):1007-3175(2023)03-0043-04
Test Method of Cable Segmental Conductors DC Resistance
Based on Pressure Tube Method
ZHANG Heng-wei, HUANG Yu-lan, PAN Ren-yong, LIU Tao, MAO Kai-yu, JIANG Dong-xu
(Sunway Co., Ltd, Leshan 614001, China)
Abstract: The traditional cable segmental conductor DC resistance test method has disadvantages of low accuracy and large dispersion,so a new test method based on pressure tube method is proposed. It uses hydraulic equipments and copper tubes to compact and shape the cable segmental conductor, which can effectively reduce conductor contact resistance of strands or wires and increase the accuracy of DC resistance test results. The actual experiment shows that this method is able to decrease conductor contact resistance of strands or wires to improve the accuracy of the test results, providing a new idea for DC resistance test of cable segmental conductors.
Key words: segmental conductor; V-clamp; conductor DC resistance; sample treatment; pressure tube method
參考文獻(xiàn)
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