70/10是指導(dǎo)線的標(biāo)稱截面是:鋁70平方毫米,鋼11平方毫米;其單位長(zhǎng)度的阻抗值為0.450Ω/km。
鋼芯鋁絞線是由鋁線和鋼線絞合而成的,適用于架空輸電線路用
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