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7.10 The sensors (rings) for fault detection and signalling
F Sensor of the ring with blades
type.
F Example of the assembly of the
rings for delivery.
7.11 Mounting the rings
Position and fit each ring, centred
perpendicularly to the cable.
The rings must be positioned
below the cable end of each
cable. Under no circumstances
must they be on the cable end.
Insulate the earthing braid.
Pass the braid back, in the reverse
direction to the cable, into the ring
Connect together the 3 cable
screen braids, on to the earthing
circuit (H M8x30 bolt, 13 mm span-
ner).
1.5
F Each braid must pass back in the
reverse direction to the cable into
the ring.
F Connect together the 3 cable
screen braids to the earthing
circuit.
7.12 Special instructions at the end of the connections
After any work in the cable
compartment, replace the
front face panel.
Ensure that all of the connec-
tions, busbar couplings,
cables, earthing circuits and low
voltage circuits have been correctly
carried out.
Ensure that the fuses have
been correctly fitted in place,
and the presence of access panels
to the interior of the Functional
Units.
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