Inverter on earth stake?

[yellowvanman]

Been asked to replace an old consumer unit, PV installed so bonding etc up to scratch.

House supply is TNCS, however with the PV wiring the inverter (Fronius) is on its own earth stake! So that makes 2 earthing systems in close proximity! Why would they want to earth stake the inverter?

 

[Worcester]

Depends when it was installed, are you sure it is the inverter that has it's own earth rod, and not just an earth rod for the array mounting system.

Where is the inverter mounted? How is it connected to the grid?

 

[yellowvanman]

Depends when it was installed, are you sure it is the inverter that has it's own earth rod, and not just an earth rod for the array mounting system.

Where is the inverter mounted? How is it connected to the grid?

Yes, sure its just the inverter, clearly shown in the schematic as well. As you I thought it may have been for the array at first.

Inverter is in garage, connected via a 'Garage CU'.

 

[Wilko]

Hi - any chance the garage has been separated and it and the sub board made TT ?

 

[yellowvanman]

Hi - any chance the garage has been separated and it and the sub board made TT ?

Main CU is in the garage as well!