Tru-Test 3 J Manual Do Utilizador

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10
 
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 
3 m (10') 
>1000 V to  ≤33,000 V 
4 m (13') 
>33,000 V 
8 m (27') 
If connecting leads and electric animal fence wires are 
installed near an overhead power line, their height above 
the ground shall not exceed 3 m (10'). This height applies 
to either side of the orthogonal projection of the 
outermost conductors of the power line on the ground 
surface, for a distance of: 
• 
2 m (6'6") for power lines operating at a nominal 
voltage not exceeding 1000 V. 
• 
15 m (50') for power lines operating at a nominal 
voltage exceeding 1000 V. 
Electric animal fences intended for deterring birds, 
household pet containment or training animals such as 
cows need only be supplied from low output energizers to 
obtain satisfactory and safe performance. 
In electric animal fences intended for deterring birds from 
roosting on buildings, no electric fence wire shall be 
connected to the energizer earth electrode. A warning 
sign shall be fitted to every point where persons may gain 
ready access to the conductors. 
Where an electric animal fence crosses a public pathway, 
a non-electrified gate shall be incorporated in the electric 
animal fence at that point or a crossing by means of stiles 
shall be provided. At any such crossing, the adjacent 
electrified wires shall carry warning signs.  
Any part of an electric animal fence that is installed along 
a public road or pathway shall be identified at frequent 
intervals by warning signs securely fastened to the fence 
posts or firmly clamped to the fence wires. 
• 
The size of the warning sign shall be at least 
100x200 mm (4x8"). 
• 
The background colour of both sides of the warning 
sign shall be yellow. The inscription on the sign 
shall be black and shall be either: 
 
or the substance of "CAUTION: Electric animal 
fence". 
• 
The inscription shall be indelible, inscribed on both 
sides of the warning sign and have a height of at 
least 25 mm (1"). 
Ensure that all mains-operated, ancillary equipment 
connected to the electric animal fence circuit provides a 
degree of isolation between the fence circuit and the 
supply mains equivalent to that provided by the energizer. 
Protection from the weather shall be provided for the 
ancillary equipment unless this equipment is certified by 
the manufacturer as being suitable for use outdoors, and 
is of a type with a minimum degree of protection IPX4. 
Frequently asked 
questions/Troubleshooting 
What voltage is required to control animals? 
4 kV is widely accepted as the recommended minimum 
voltage to control animals. However, you also require a 
well constructed fence system to ensure that animals 
cannot push through electrified wires. 
The fence voltage is below 4 kV. How do I 
increase the voltage? 
Check the energizer.
  Disconnect the fence wire from the 
energizer's fence output terminal. Measure the voltage 
across the energizer terminals with a Fault Finder or 
Digital Voltmeter. If the voltage is less than 6 kV, the 
energizer may require servicing. 
Check the energizer earthing.
 Use the procedure described 
in 
Installing and testing an earth system
 on page 8. 
Check the fence system for faults. 
The most common 
source of low voltage is faults on the fence line. 
If the fence, earth and energizer are in good condition and 
the voltage is still below 4 kV, talk to your nearest 
reseller. Recent extensions to your fence, a poor fence 
layout, or soil conditions may be causing inadequate 
voltage.  
How do I locate faults?
 
The recommended tool for locating faults is a Fault Finder. 
This combined voltage and current meter allows you to 
rapidly locate sources of current leakage. Alternatively, 
use a Digital Voltmeter. Use cut-out switches to turn off 
the power to different sections of the farm. If the voltage 
on the fence increases when a section of the farm is 
turned off, then investigate that section for possible faults. 
There are no lights flashing on the energizer.
 
Check the power supply to ensure that the power is 
switched on. Check the fence system for faults (see 
above). Check the energizer (see above). If the energizer 
still does not operate, it may require servicing.