代表档距Lr(m)不同气温下代表档距的安装弧垂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...[继续阅读]