RG59 Siamese cable is a heavily shielded cable which contains a COAX video and pair of 18 guage 2 conductor power in one jacket. The advantages to using RG59 cable is that its more durable and can be run in long distances without interference. You can also cut each security camera run the exact length that you need. You will need to attach BNC connectors to each end of the RG59 coax part of the cable for the CCTV video transmission.  BNC connectors are available in twist on, crimp on, and compression types.  500 foot spools of RG59 are also available.  Watch this video to see how to attach a BNC crimp on connector to RG59 cable.

RG59 Cable Tools

How to connect a BNC connector to RG59 cable video

• Siamese type configuration to run video and power in one cable jacket
• RG-59/U Type coax plus one pair 18 AWG stranded
• (Coax) solid bare copper conductor 20 AWG
• Gas injected polyethylene coaxial core Nom. OD .142 inch (3.61 mm) with an aluminum polyester tape barrier
• Bare copper braid shield 95% coverage
• Unshielded 18 AWG twisted pair employing PVC insulation and PVC fillers
• Overall PVC jacket Nom. OD .232 x .460" (5.89 x 11.68 mm)