Gallagher MB1800i Notice D'installation page 10

Step 2. Install the Earth system
Buildings and gates for example, can become electrifi ed with fence voltages if the
energizer is improperly earthed.
Follow earthing instruc ons
a) Install at least 3 x 1.5m (5 ) galvanised earth stakes into damp soil where
possible. In dry condi ons or in low mineral content soil more earth stakes
may be required. Earth stakes must be at least 3m (10 ) apart and at least
10m (33 ) away from any mains cabling, telephone cabling, water pipes or
building earth. Do not connect the earth terminal to any building metal work or
framing.
b) To a ach the earth cable:
1. Using Underground Cable (G627) remove 5cm (2") of plas c coa ng from
one end of the cable wire and connect to the green (
energizer.
2. A ach the cable to the earth system by removing 10cm (4") of insula on
from the cable at each Earth Stake (G879) and then clamp the exposed
wire to each stake using an Earth Clamp (G876).
3. Tighten the clamp.
Note: Poor grounding can cause interference on telephone lines, radios and
televisions. This can be recognised by a clicking sound on
Reference Earth
An addi onal earth stake is required to measure the earth system performance.
a) Install a single galvanised stake (G878 / G879) at least 60cm (2 ) long, at least
10m (33 ) from the main energizer earth system and at least 10m (33 ) from
any mains cabling, telephone cabling, water pipes or building earth.
b) Using Underground Cable (G627) connect the reference earth stake to the
black (ref earth symbol) terminal on the energizer.
10
Gallagher 3E4345 MB1800i MB2800i Energizer User Manual
carefully.
GREEN
To Earth System
BLACK
To Reference Earth
) terminal on the
telephones.
RED
To Fence