SMA SUNNY CENTRAL Maintenance manual - Manual (Page 54)

Additional notes for MV stations SMA Solar Technology AG
54 SCWAR-WEN094020 Maintenance Manual
8 Additional notes for MV stations
8.1 Checking the cable feed of the concrete substations
1. Check the chamber and the air ducts of the concrete substations for contamination or damage.
☑ The cable vault must be dry and dust-free. No insects or other animals may enter the cable
vault. Take appropriate measures, if necessary.
2. Check the ventilation. An optimal ventilation of the inverters must be ensured at all times.
3. The power grid is supplied via a medium-voltage transformer which requires almost no
maintenance work. Regularly check whether oil has leaked.
DANGER!
Death resulting from electric shock and burning upon touching the medium-
voltage grid's live components.
• Only work on the device when it is switched off and voltage-free.