[COLOR="#0000FF"]Members location is France.[/COLOR] Hey everybody! My house has a 3 phase power supply. Each phase is separated at the main panel into three different sections of the house. For example, one phase powers the downstairs, one the upstairs and one a sub panel in the basement. Through my investigation I found out this could be called a "balanced 3 phase system". Is this accurate? I want to install an instant hot water heater that requires a 3 phase 415V supply. How should I make the connection at the main panel to divert a 3 phase supply to a small sub panel which only supplies the hot water heater, without disturbing the current setup of the balanced system? Should I split the main supply before it enters the main 3 phase differential or split each individual phase after the differential? Or is there a better solution that I am not seeing? I have a fairly good knowledge of electricity but 3 phase mixed with sepereate single phases is a bit over my head. Thanks!

I found an outdoor light fixture that doesn't have a ground. What is the best way to create a ground? The light junction box is connected to conduit which is fastened to the patio. I can run a green copper wire through the conduit but that is going to take lots of work to shove it through that conduit. I researched and read that I can run a copper wire (mounted from the junction box) to the light fixture. This will create a ground? Thanks