The invention discloses a method for electrified lead connection. A device is hung on a wire through the opening of a hook, a locking bolt is rotated to penetrate through a through hole in the fixed side of the hook, the locking bolt is clamped on a clamping hook, and then a fastening screw rod is rotated to drive a fixing block and the clamping block to move until the wire is locked, wherein the fixing block and the clamping hook are connected to the fastening screw rod. A copper wire part of an arc extinction rope winds through a pulley of an arc extinction tackle, is wound on the end of a drainage wire by one circle and then is fixed on the drainage wire through a lead clamp. The mode of fixing the drainage wire on the lead clamp is that two arc pieces of the lead clamp are opened, the arc extinction rope is clamped between the two arc pieces, then the two arc pieces are clamped on the drainage wire, lock bolts are locked, and the a small arc piece is adjusted to enable the small arc piece to tightly press the drainage wire and the copper wire part of the arc extinction rope.