145P Tags Fish paper roll - electrical insulating fish paper (light grey) CG100350FT - 3" x 50' x 0. 010" thick. For small sized installations where the higher cost of adhesive-backed fish paper is prohibitive. Used to get around those tight corners. where larger rolls create a challenge. Paper is secured with 9-ply waxed lacing cord to prevent chaffing of paper over time. The high voltage ac power cables are insulated from the lower voltage dc cables and equipment. This fish paper prevents costly electrical shorts on expensive equipment.