Patent ID: 7216850

Claim:
A device for changing a live electric wire on electric poles without cutting off power supply, a wire changing device comprising: a fastening unit ( 10 ) having a mounting frame for mounting and tightening the wire changing device on a cross-arm of the electric pole, a wire replacing unit ( 20 ) having a supporting arm for installing and removing the live electric wire and pulling for adjusting the wire tension, and an axial-rotating unit ( 30 ) having a central arm fixture, an ann coupling and an axial shaft for perpendicularly mounting and rotating the supporting arm within a preset interval, wherein said fastening unit ( 10 ) is installed on the axial shaft of said axial-rotating unit ( 30 ) and said wire replacing unit ( 20 ) is placed on top end of the supporting arm of said axial-rotating unit ( 30 ).