所屬欄目:配網(wǎng)工程
代表檔距Lr(m)不同氣溫下代表檔距的安裝弧垂fr(m)-40℃-30℃-20℃-10℃0℃+10℃+20℃+30℃+40℃400.040.050.060.060.070.090.110.140.19410.050.050.060.070.080.090.110.140.19420.050.050.060.070.080.10.120.150.2430.050.060.060.070.080.10.120.160.21440.050.060.070.080.090.10.130.160.2 ......(本文共 12751 字 ) [閱讀本文] >>