METHOD AND APPARATUS FOR REPLACING INSULATORS ON ENERGIZED POWER LINES

摘要

Apparatus for replacing a suspension insulator on a tower having a davit armsupportingan attached insulator and a conductor shoe attaching an energized conductor tothe insulatorlower end including a non-conductive board longer than and mounted to thetower below thedavit arm, struts extending between the board and the tower, and a movableslider mountedon the board, the slider supporting a jack and a conductor lifting barattached to the jack.Without contacting any energized components, a lineman moves the slider andoperates thejack to lift and support the energized components, detaches the shoe from theinsulator,moves the energized components to a remote position on the board, detaches andreplaces theinsulator while it is supported by a helicopter, moves the slider and operatesthe jack to liftthe shoe into alignment with the insulator and attaches the shoe to theinsulator.