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id="content"> <div class="wz_title"><h3>什么是同心导体电力电缆</h3></div> <div class="contentinfo pc_show">作者：<a>hbdq</a> 添加时间：2026-10-22 08:58:57 </div> <!-- 正文 --> <span style="font-family: "Microsoft Yahei", Arial, Helvetica, sans-serif; text-wrap-mode: wrap;">什么是</span><span style="font-family: "Microsoft Yahei"; font-size: 14px;">同心导体电力电缆</span><span style="font-family: "Microsoft Yahei", Arial, Helvetica, sans-serif; text-wrap-mode: wrap;"><br/>同心导体是指围绕在一根或多根绝缘线芯外的导体，该产品使用了同心导体技术，是一种线芯间相互干扰和损耗小的电力电缆，其特征是电缆三根绝缘线芯呈等边三角形排列，绝缘线芯外有多根铜导体相间并列斜绕组成的同心导体，同心导体截面之和大于或等于电缆所需零线截面。由于电缆的三根绝缘线芯呈等边三角形排列，电缆三相负载线芯形成了平衡对称结构，使得各芯交流电阻平等，大大降低三相负载不平衡相互产生电磁干扰，各线芯正负序阻抗均接近为零，减小了相互电磁干扰，因而抗干扰能力强；而且同心导体一线二用，既可以作为零线第４导体使用，又可以作电缆屏蔽，由于不另设零线，减少了用铜量，节约了电缆成本，还使电缆的外径减小、重量减轻。广泛应用于抗电磁干扰、抗雷击等环境下的电力传输。<img src="/cn/upload/images/202610/17926313701497.png" title="17926313701497.png" alt="0f1692ba-3e7f-4198-8701-e95251d3da04.png"/></span><div class="clear"></div> <div class="blank30"></div> <div class="blank30"></div> <!-- 投票 --> 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