7.2 Earthing Switch
The supply of the earthing switch comprises.
l Earthing-switch links (336)
l Tubular contact arms (23) wiwth contact finger (20) and T-type clamp(329)
l Earthing contact (18)
l Operating mechanism for earthing switch (77)
l Operating rod (37)
l Operating lever (76) with clamping cover (334)
l Earthing connections (79)
l For 2nd earthing switch : earthing connections (343)
l Earthing - switch shaft (337)
l In case of series arrangement : Earthing-switch shafts (73) with welded earthing - switch lever
(339) Figure 53
l Earthing-switch lever (19)
l In case of series arrangement : Coupling rods (15) Figure 55
l If operating mechanism mounted separately : Vertical operating shaft (43) and pivot bearing
(42) Figure 38
l If operating mechanism with lateral offset : Operating rod (83) and offset bearing (376) Figure
42
l Small parts
A
A
A
A
Figure 11 : Scope of supply, earthing switch
12/113
1HDB 050016-YN-A
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