RBEL
New User
- Location
- Netherlands, Europe
- Occupation
- Hobbyist
Hello guys!
I am coming from the DIY Solar forums, but I was recommended to ask the question here, as it concerns electrical installation more than solar systems.
I have thus just copied the post from the other forums:
I was just at a friend's house who has recently had his solar system installed (3ph, 10kW inverter + 30kW battery with 42 solar panels).
Now all seemed fine until I saw his main distribution box, which was added with what seems to me - something strange.
To give the solar system some upstream protection from the grid, the installer had put in 3x single phase RCBOs, instead of one RCBO.
The neutral connections were all run onto a busbar. The neutral from the busbar was then fed into the inverter.
Since I am no electrician and since I had never seen something like this before, I wanted to ask you guys: is this even legal and should one make such connection? Can one do this? Is it safe? Or will it just not work?
I am always under the impression that a 3 phase RCBO is intended for a 3 phase system, instead of 3x single phase ones...
Any thoughts?
I am coming from the DIY Solar forums, but I was recommended to ask the question here, as it concerns electrical installation more than solar systems.
I have thus just copied the post from the other forums:
I was just at a friend's house who has recently had his solar system installed (3ph, 10kW inverter + 30kW battery with 42 solar panels).
Now all seemed fine until I saw his main distribution box, which was added with what seems to me - something strange.
To give the solar system some upstream protection from the grid, the installer had put in 3x single phase RCBOs, instead of one RCBO.
The neutral connections were all run onto a busbar. The neutral from the busbar was then fed into the inverter.
Since I am no electrician and since I had never seen something like this before, I wanted to ask you guys: is this even legal and should one make such connection? Can one do this? Is it safe? Or will it just not work?
I am always under the impression that a 3 phase RCBO is intended for a 3 phase system, instead of 3x single phase ones...
Any thoughts?
