Large cable laying on the bridge overhead line small tray method

The present invention relates to a method for laying the cable on a large bridge small trays overhead line, comprising the steps of: ⑴ Preparation before laying; ⑵ overhead cable entry window via the cable climbing roll cage; ⑶ cable achieved by turning the steering wheel... ;. ⑷ cable through the low pulley;. ⑸ achieve steering cable passed around diverting pulley;. ⑹ cable through the slip discharge curve achieved;. ⑺ cable through the positive, to achieve climbing down pulley; ⑻ in narrow. viaduct 90 ° horizontal bend, horizontal frame interior angle increases, a set of temporary increase in the force of the wire together the outer corner side of the viaduct;. ⑼ cable through the steering wheel can turn. The present invention is a method of laying a cable in a large overhead line bridge small trays, the rational design methods, targeted, can be applied in accordance basic requirements of the standards and regulations, using the present method can guarantee the quality of the cable construction, speed up the construction progress, but also the successful completion of the construction of good work.