Abstract: Due to aging of insulator binding wire, damage of compression plate, loosening of bolts and other reasons, the defect of overhead conductor falling off from the insulator occurs from time to time. The space distance at the insulator is narrow and the potential is complex. When the live working personnel fix the conductor by binding or fastening the bolt on the top of the insulator, there are high Operational risk risks, low work efficiency and other problems. The hardware of wire fixed in post insulator suitable for uninterrupted maintenance is developed.The hardware has a clever structure, is easy to install, and the wire is firm and reliable. It can be installed using insulation gloves or insulation rods, improving work efficiency and safety level, and further ensuring the safety of operators.