Help!!!! Metrel Mi3000 tester problem

[Deleted member 26818]

Type B RCBOs are used where there is PV.
So they will become more common place, as more homes get PV.
I believe also, that they are required for vehicle charging points?

 

[davesparks]

They are only required when the DC residual current component exceeds a certain value (6mA springs to mind)
If the PV equipment or charging unit has built in protection to prevent a DC residual current then a type A RCD is ok.

And that's the extent of my knowledge on these areas so can't go in to any more detail