- Most applications of hook-up and lead wire for board-to-board or point-to-point wiring rely on PVC insulated designs. General Cable® Carol® brand products offer both electrical and electronic designers a vast array of quality PVC hookup wire to meet the specific technical demands of today, with ''off-the-shelf distributor inventoried products. Hook-up wire is also available in special colors and/or stripe combinations with a minimum of lead time. In addition, General Cable® offers a variety of put-ups to meet individual customer requirements.