You and your pole partner are assigened the task of transfering 3-#6 bare cu. 4Ft. up to a new arm,with a center phase king pin.The adjacent poles are set in concret side walk,cross arms are fairly new,steel pins and insulators look good from the ground,no sleeves,kinks,pits,or old connectors. All three are same color,oxidezed green.Is there a trick you use to tell if its eneeled, lost its tensel strength? I`ll accept any comment you got.