Earthing and de-earthing the busbar system
282 NXAIR / ≤ 40 kA 110-0134.9 / 14
After turning the operating lever to the end position, the position indicator of the busbar
earthing switch changes from the intermediate position to the OPEN position.
Fig. 521: Operating lever in end position
Remove the operating lever.
To close the actuating opening, push the operating slide down as far as it will go.
Fit a padlock to the operating slide and close it.
The busbar earthing switch has been switched from the CLOSED position to the OPEN
position, thus de-earthing the busbar. The position indicator of the busbar earthing switch
changes from the CLOSED position via the intermediate position to the OPEN position.
Fig. 522: Operating slide on
busbar earthing switch padlocked
The busbar system is de-earthed.
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