5.8.3. Opening operation from earthing position
1.
Move the yellow slider to the right (this releases the lever
access so the earthing switch can be disconnected).
2.
Insert the lever in the earthing switch access, move the
actuator arm to the end and turn anti-clockwise 90º.
Figure 5.42.
Lever turn process
Figure 5.43.
Earthing switch open
3.
Verify that the cubicle is in isolating position.
IG-078-EN version 12; 23/04/2020
71
General Instructions
cgmcosmos
: Medium-voltage cubicles with full insulation
in SF
6
gas up to 24 kV in accordance with IEC Standard
Recommended sequence of operations
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