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  钢芯铝绞线是一种用于输电和配电系统的高性能导线，由铝合金外层和钢芯构成。 其独特的结构使得钢芯铝绞线具有较高的强度和导电性能，适用于长距离输电和大 负荷情况下的配电。

  本文将详细的介绍常见的钢芯铝绞线型号及规格，并对其特点、应用场景范围等做全面 深入的解析。

  钢芯铝绞线的钢芯部分提供了额外的强度，使导线可承受更大的张力。相比于 传统的铝导线，钢芯铝绞线具有更高的抗拉强度，适用于长距离输电和大跨越。

  由于铝层占据了绞线截面积的大部分，钢芯铝绞线相较于同等截面积的纯铜或纯铝 导线来说更轻巧。这使得安装和运输更便利，并降低了成本。

  4、产品应符合规定标准中规定的交货长度，但经需方同意，允许以任何长度的绞线、产品表面应圆整光洁，无划伤、无油污，不得有蛇形状、暴露内层沾模和其他缺陷。

  综合说明：该产品为裸线品种，大多数都用在高压输配电线路，对于长距离、大跨度的跨江、河、 山区等敷设环境宜采用加强型钢芯铝绞线。当前我国大部分长距离超高压、高压输、配电线 路中，多采用此种产品。

  铝绞线及钢芯铝绞线的弹性系数和线线胀系数： 铝绞线的弹性系数和线胀系数 单线根数 最终弹性系数（实际值） 线膨胀系数

  4、产品应符合规定标准中规定的交货长度,但经需方同意,允许以任何长度的绞线、产品表面应圆整光洁,无划伤、无油污,不得有蛇形状、暴露内层沾模和其他缺陷。

  综合说明:该产品为裸线品种,大多数都用在高压输配电线路,对于长距离、大跨度的跨江、河、山区等敷设环境宜采用加强型钢芯铝绞线。当前我国大部分长距离超高压、高压输、配电线路中,多采用此种产品。

  最全铝包钢芯铝绞线 标准技术参数 ··············································································································1 1.1 JL/LB20A-70/40-12/7 标准技术参数·········································································1 1.2 JL/LB20A-95/55-12/7 标准技术参数·········································································3 1.3 JL/LB20A-120/25-7/7 标准技术参数·········································································5 1.4 JL/LB20A-150/35-30/7 标准技术参数 ·······································································7 1.5 JL/LB20A-185/30-26/7 标准技术参数 ·······································································9 1.6 JL/LB20A-240/30-24/7 标准技术参数 ······································································11 1.7 JL/LB20A-300/25-48/7 标准技术参数 ······································································13 1.8 JL/LB20A-300/40-24/7 标准技术参数 ·······

  最全铝包钢芯铝绞线 标准技术参数 ··············································································································1 1.1 JL/LB20A-70/40-12/7 标准技术参数 ·········································································1 1.2 JL/LB20A-95/55-12/7 标准技术参数 ·········································································3 1.3 JL/LB20A-120/25-7/7 标准技术参数 ·········································································5 1.4 JL/LB20A-150/35-30/7 标准技术参数········································································7 1.5 JL/LB20A-185/30-26/7 标准技术参数········································································9 1.6 JL/LB20A-240/30-24/7 标准技术参数·······································································11 1.7 JL/LB20A-300/25-48/7 标准技术参数·······································································13 1.8 JL/LB20A-300/40-24/7 标准技术参数····