Datamars Patriot PMX350, User Manual

Page: 6 / 108

6
A distance of at least 33' (10 m) shall be maintained between the unit's ground
electrode and any other grounding system connected parts such as the power supply
system protective ground or the telecommunication system ground.
Connecting leads that are run inside buildings shall be effectively insulated from the
grounded structural parts of the building. This may be achieved by using insulated high
voltage cable.
Connecting leads that are run underground shall be run in conduit of insulating
material or else insulated high voltage cable shall be used. Care must be taken to
avoid damage to the connecting leads due to the effects of animal hooves or vehicle
wheels sinking into the ground.
Connecting leads shall not be installed in the same conduit as the mains supply wiring,
communication cables or data cables.
Connecting leads and electric animal fence wires shall not cross above overhead
power or communication lines.
Crossings with overhead power lines shall be avoided wherever possible. If such a
crossing cannot be avoided it shall be made underneath the power line and as nearly
as possible at right angles to it.
If connecting leads and electric animal fence wires are installed near an overhead
power line, the clearances shall not be less than those shown in the table below.
Minimum clearances from power lines for electric animal fences
Power line voltage Clearance
≤
1000 V
10' (3 m)
> 1000 V to ≤ 33,000 V 13' (4 m)
> 33,000 V
27' (8 m)
If connecting leads and electric animal fence wires are installed near an overhead
power line, their height above the earth shall not exceed 10' (3 m). This height applies
to either side of the orthogonal projection of the outermost conductors of the power
line on the earth surface, for a distance of: