OPGW cable erection before the work
OPGW optical cable generally in the line design, the design department should be combined with the actual situation of the line, determine whether the need to set up good conductor ground wire, determine the type and length of good conductor ground wire, control the maximum use of tension of the ground wire distance conditions and tower head size, And determine the suitable OPGW short-circuit current capacity tI2t and the limit value of the maximum service tension that can be accepted by the load condition of the tower, and the latter can be multiplied by the coefficient of 2.5 ~ 8 to become the limit value of the rated failure strength of OPGW, the limit value of OPGW cable diameter and cable weight can be determined according to the load condition of the tower.