Coaxial Cable comes in various types, ie: RG59B/U Siamese Cable is a combination of RG59 for video and a pair of 18-gauge power wires in one jacket. Coaxial Cables are used in your cable run. Our RG59B/U cable features a 20AWG or 0.81mm center conductor and 18/2AWG stranded power wires for better conductivity. Choose from various types of RG59 Siamese Coaxial Cable with Wire Construction: Inner conductor CCS, Power Wire CCA The Jacket for this Coaxial Cable is PVC (FIRE RESISTANT)and it comes in 1000 ft Bulk Coaxial Cable Rolls in a box. Coaxial cable conducts an electrical signal with an inner conductor wire. It has an insulating layer The cable is protected by an insulating jacket. Coaxial Cable supplies electrical signals without interference. Ask us for assistance to find the right type of coaxial cable for your application.