采用传统的架线工艺进行特高压输电线路架线施工时，部分常规的机械设备不能满足负荷要求，需要进行设备改造或者购置新设备。为此，提出了新型的2ד一牵三”张力架线工艺，使现有机械设备基本满足要求，避免了大量采购新设备，达到了节约资金、提高施工效率的目的。

In the stringing construction process, some conventional mechanical equipment was unable to meet the load demand with the use of traditional stringing technology, which needed the equipment modification or the purchase for new equipment. Therefore, a new tension stringing technology with ‘2-tractor with 1-guiding 3-wire’ was put forward to make the existing equipment basically meet the load demand, which could avoid a large purchase of new equipment, as well as achieve the purpose of saving money and improving construction efficiency.