Installation recommendations
FP400 Product Guide
Page 25
Climb-over deterrent hardware
Climb-over deterrent hardware is strongly recommended on perimeter fences under the following
conditions. Barbed wire outriggers must be secure to prevent movement due to environmental
conditions. Install bracing wires between the outrigger supports to prevent the barbed wires from
spreading apart. Each barbed wire strand should be taut and tightly secured at each support. Any
extension arms or outriggers attached to post tops should have a tight press-fit/set-screw or be
spot-welded. Remove or fasten any loose or rattling material. Sensor cable can also be installed
on a fence that is protected with razor ribbon, providing the razor ribbon is secured so that it
cannot move due to the wind, or other environmental factors. Use tensioning wires to secure the
coil and to prevent the razor ribbon from pulling apart if it is cut.
Barbed wire
It is possible to install sensor cable on barbed wire, but extra precautions must be taken to avoid
damage to the sensor cable. Run the sensor cable along the fence and loop the cable up beside
the fence posts. Secure the sensor cable to each strand of barbed wire so that the cable avoids
contact with the barbs. Secure the cable where it crosses each outrigger. Run the cable past the
outrigger and then back down to the half way height of the fence. Alternatively, two zones can be
used to provide coverage for the fence and for the barbed wire.
show the
recommended methods for installing sensor cable on barbed wire.
Figure 17: Single zone, double cable pass configuration
1/3 fence height
1/3 fence height
1/3 fence height
to processor
end module
splice point
service loops
start module
(
maximum sensor cable length 300 m)