All exposed cable is installed in
conduit. Outdoor cable is encased in steel Bosal
conduit. PVC conduiting is used whenever any trenching
is required, as it does not biodegrade underground, as
is the case with Bosal. Exposed indoor cable is
encased in either PVC conduit or trunking. A large emphasis is
placed on aesthetics and our technicians are required
to make 45° bends and joins in their conduit work.
The use of quality cable is critical
to the success of an installation. Cheap cable can
result in a weak video signal. It may also be more
susceptible to outside interference, which could
result in a reduction in the life span of your system.
RG59 is the standard video cable used between cameras
and the monitoring equipment. The Oil Companies
requires a 75-Ohm military specification as a minimum.
At VitalVISION, we use RG59B/U MIL-C-17F
cable, which surpasses the above requirement. In
instances where the distance between a camera and the
monitoring equipment exceeds 270 metres, RG11 can be
used up to a distance of 550 metres. Where these
distances are exceeded, twisted-pair cable powered by
baluns may be used up to 1,200 metres, whereafter
fibre optic cable is required.