IG-183-EN version 06; 31/03/2020
54
Recommended sequence of operations
General instructions
cgm.3 system: medium voltage SF
6
gas-insulated
cubicles up to 38 kV according to IEEE and CSA standards
5.6.4. Grounding operation from the open position
1. Move the actuation shaft access handle in the yellow
zone to its lower position.
2. Insert the lever in the grounding switch actuation shaft
and turn clockwise.
3. Remove the lever, the handle returns to its original
position.
4. Verify that the cubicle is in grounding position.
Figure 5.17. Grounding from open position in cgm.3-s-pti
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