Rip Cord for Use With Plenum Cables
Original Publication Date: 1983-Dec-01
Included in the Prior Art Database: 2005-Feb-08
An aramid fiber, such as KEVLAR*, is used as a rip cord to remove the protective jacket which surrounds current-carrying conductors or the like. Most data cables contain a braided metal shield surrounding the conductors. The metal shield prevents damage to the conductors when a knife or other instrument is used to strip the protective jacket from the cable. Some cables do not have the braided metal shield. If a knife is used to strip the protective jacket, the knife often damages the conductors. To prevent such damage, a rip cord is used to remove the protective jacket from the cable. A rip cord is a fibrous thread inserted beneath the jacket of the cable and rips through the jacket when it is pulled. To meet fire and smoke requirements for plenum use, cable jackets must be made of some fluoropolymer, such as TEFLON*.