Earthing and de-earthing the busbar system
139-2021.9 / 07 NXAIR M 135
Position the electrician's ladder correctly in front of the panel.
Fig. 225: Operating slide on busbar earthing switch
padlocked
Lift the operating slide and hold it.
Fig. 226: Lifting the operating slide;
actuating opening free
Actuating opening for busbar earthing switch
The actuating opening for the busbar earthing switch has different receptacles for inserting the operating
lever for closing and opening the busbar earthing switch.
Fig. 227: Actuating opening for
busbar earthing switch
Fig. 228: Inserting the operating lever
for closing
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