ABB SGF, Instruction Manual

Page: 19 / 156

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