| 摘要 |
A method for directly surveying a wire dip is provided to improve a wire stringing quality by measuring a distance between a wire curve and a linear line which connects two supporting points. A method for directly surveying a wire dip includes the steps of: preparing a surveying instrument and a document for measuring a wire dip, determining a surveying point, and installing the surveying instrument; surveying a horizontal distance of a pylon and a vertical angle of the supporting point; surveying a horizontal angle of two pylons; surveying a horizontal distance of a pylon and a vertical angle of the supporting point; calculating a horizontal angle of a dip line; calculating the vertical angle of the dip reference point; calculating a vertical angle of an overhead earth wire and a wire dip reference point of each phase based on a height of two points calculated by the error correction value, and the horizontal distance of the dip line; and determining a new established dip. |
