METHOD FOR SURVEY BETWEEN POWER TRANSMISSION LINE SUPPORT POINTS OF IRON TOWER

摘要

PROBLEM TO BE SOLVED: To provide a method for survey that can safely and efficiently survey the horizontal distance and difference of elevation between power transmission line support points even when the power transmission line is a charging line in a hot line state without using a retroreflection sheet nor the need for an operator to climb up an iron tower.;SOLUTION: The coordinates of power transmission support points A, B are found by survey respectively, and the horizontal distance Lab and difference of elevation Hab between the two power transmission line support points A, B are found from the found coordinates. The coordinates of an observation point P₁ determined right nearby an iron tower 1 are found by survey, and the coordinates of the power transmission line support point A of the iron tower 1 are found by survey on the basis of the coordinates of the observation point P₁. The coordinates of an observation point P₂ determined right nearby an iron tower 2 are found by survey on the basis of the coordinates of the observation point P₁, and the coordinates of a power transmission line support point B of the iron tower 2 are found by survey. Then the horizontal distance and difference of elevation between the two power transmission line support points are found by geometric calculation from the found coordinates of the power transmission line support points A, B.;COPYRIGHT: (C)2013,JPO&INPIT