To separate the insulation, sheath and inner covering, and keep them from bonding and affecting the mechanical, physical and electrical properties of the cable.
隔离绝缘层和外护层以及内衬层，以防它们之间相互粘结而影响电缆的机械、物理、电性能等。
2
Twisted-pair were in the wire bonding method sometimes used for coaxial cable, the method can make it smaller, lighter, cheaper.