Abstract: On the overhead insulated lines of 10 kV and below power distribution network, BV insulated manual binding wires are mostly used to fix the overhead insulated lines. Due to the nonstandard binding construction process, it has been affected by factors such as partial discharge, heating and wind vibration stress corrosion for a long time. At least, the binding wire will be loose, and the lines will fall off. At worst, the lines insulation will be damaged, and even lead to line broken and tripped accidents. This paper analyzes the fault of BV insulated manual binding wire on overhead lines of 10 kV and below, and puts forward a fast installed pre twisted insulation binding wire to solve the problem of insulation layer damage caused by wind vibration stress and partial discharge heating of conductor, so as to ensure the safe and stable operation of power distribution network.