横担的作用：电线杆顶部横向固定的角铁，上面有瓷瓶，用来支撑架空电线的。 横担是杆塔中重要的组成部分，它的作用是用来安装绝缘子及金具，以支承导线、避雷线，并使之按规定保持一定的安全距离。
铁塔结构形式新颖，杆塔导线横担悬臂较长。
The structure formation of towers is very novel, and the cross arm is rather long.
绝缘子可以保证导线和横担、杆塔有足够的绝缘。
Insulator can guarantee adequate insulation between the conductors and cross arms, towers.
特高压线路的铁塔重量大、铁塔高、横担长、结构复杂。
The tower of the extra high voltage (EHV) transmission line is heavy, tall, and it has longer cross arm and complex structure.
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