Tru-Test speedrite Delta 1B, Руководство пользователя

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All-live system
Earth-return system
Horizontal stay
Suitable for field gate, high-tension strainer.
Very simple to erect and most suitable as a high tension
strainer, excellent in areas where the soil gets very wet or
where heavy frost occurs.
Installing and testing an earth system
8
Select a suitable site for the earth system. Sites need to be:
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At least 10 m (33') from other earth systems (e.g.
telephone, mains power or the earth system from another
energizer).
Away from stock or other traffic that could interfere with
the installation.
At a site that can be easily observed for maintenance.
Ideally at a site that has damp soil (e.g. a shaded or
swampy location). Note that the earth does not need to be
directly adjacent to the energizer installation.
Drive Speedrite earth rods into the ground. Use high-voltage,
insulated cable and earth clamps to continuously connect the
earth rods and the energizer's Fence earth terminal. Make sure
the insulation is stripped back to ensure good contact between
the wire and the earth rod. The table below specifies the
minimum number of 2 m (6'6") earth rods recommended for an
earthing system:
Energizer Earth rods
Delta 1B (0.5 J) 1
Delta 2B (1.0 J) 2
Delta 3B (2.5 J) 3
Test the earth system, using the following procedure:
1
Turn off the energizer.
2
At least 100 m (330') away from the energizer, short
circuit the fence by laying several steel rods or lengths of
pipe against the fence. For best results, the fence voltage
should be lowered to 2000 V or less. In dry or sandy
conditions, it may be necessary to drive the rods up to
300 mm (12") into the earth.
Note: It is not acceptable to short-circuit a fence return
system to the earth wire of the fence.
3
Turn the energizer back on.
4
Using a Speedrite Digital Voltmeter, ensure that the fence
voltage is below 2 kV.
5
Check your earth system. Insert the voltmeter's earth
probe into the ground at the full extent of the lead, and
hold the hook against the last earth rod. The tester should
not read more than 0.3 kV. Anything higher than this
indicates that better earthing is required. Either add more
earth rods or find a better ground area to drive in the earth
rods.
Note: When earthing energizers located in dairies, earth at
least 20 m (65') away from the dairy using double-insulated
wire to avoid touching the dairy building or equipment.