D7型焊接横担的型号有：D7.57S，D7.76S，D7.89S，D7.108S，D7.133S，D7.159S，D7.168S，D7.194S，D7.219S，D7.245S，D7.273S，D7.298S，D7.325S，D7.355S，D7.377S，D7.406S，D7.426S，D7.457S，D7.480S，D7.508S，D7.530S，D7.558S，D7.630S，D7.720S，D7.820S，D7.920S，D7.1020S，D7.1120S，D7.1220S。D7A型焊接横担的型号有：D7A.168S，D7A.194S，D7A.219S，D7A.245S，D7A.273S，D7A.298S，D7A.325S，D7A.355S，D7A.377S，D7A.406S，D7A.426S，D7A.457S，D7A.480S，D7A.508S，D7A.530S，D7A.558S，D7A.630S，D7A.720S，D7A.820S，D7A.920S，D7A.1020S，D7A.1120S，D7A.1220S。

只考虑在正常未断线情况下，承受导线的垂直荷重和水平荷重

根据横担的受力情况，对直线杆或15以下的转角杆采用单横担，而转角在15度以上的转角杆、耐张杆、终端杆、分支杆皆采用双横担。

横担一般安装在距杆顶300mm处，直线横担应装在受电侧，转角杆、终端杆、分支杆的横担应装在拉线侧。

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