To provide fire protection to a cable, there are two methods:
a) Insulation material is deliberately added up with fire retardant materials
b) The copper conductor itself is covered with mineral insulations( MICC cables)
In applications powering sensitive electronics, keeping unwanted EMI/RFI from entering circuits is important. This can be accomplished passively with shielding along the length of the cable or by running the cable in an enclosure separate from any other wires which may induct noise. It can also be actively achieved by use of a choke designed to restrict the cables' ability to conduct certain frequencies.