Disconnecting the DC Side
1. Switch off the inverter.
2. Disconnect all poles of the DC voltage in the DC main distribution or DC subdistribution . 3. Ensure that the DC switchgear in the inverter is open.
4. Ensure that no voltage is present on the load side of the DC switchgear.
5. Cover or isolate any adjacent live components.
6. Remove the protective covers over the fuses.
7. Remove all fuses and disconnection blades from all fuse holders of the inverters. Use an LV/HRC fuse extractor.