I N S T A L L A T I O N O F T H E S W I T C H G E A R A T S I T E
25
—
Fig. 2.3.4.3.2: Earthing
of the busbar,
earthing plate
—
Fig. 2.3.4.3.3: Earthing
of the busbar,
connection of the
leads
Fit the clamps and connect the earthing leads to
the clamps in accordance with the assembly
instructions from busbar manufacturer NKT as
supplied. Fasten the earthing leads for the earthing
lugs and the earthing leads for earthing clamps A
on the adapter to a common earthing point on the
earthing plate (Fig.2.3.4.3.2 and 2.3.4.3.3) using an
M8 cheese-head screw, two dished washers 8 and an
M8 hexagon nut. Connect the earthing leads from
earthing clamps B in the same way, each to one
earthing point on the earthing plate.
Earthing plate
—
Fig. 2.3.4.3.2
—
Fig. 2.3.4.3.3
Double connection for the earthing
leads of earthing clamps A and the
earthing lugs on the same adapter
by using one cheese head screw
M8X25, two dished washer 8 and
one Nut M8.
Single connection for the
earthing leads of earthing
clamps B by using one
cheese head screw M8X25,
two dished washer 8 and
one Nut M8.