Opp, this is new to me.

I just bought one POE router, two POE switches and 10 AP (RJ Socket with WIFI and powered by POE) for a 3 storeys house. So, everyone bedrooms and common areas, I will have LAN points for PC and WIFI for other devices. I gave my house layout and the seller suggested the solution to me. He did not tell me 3 phase would impact the network. Next month I will see the result, finger crossed.

Thanks for clarification. I actually contacted the seller and he assured me the AP sockets he sold operate based on DC supplies from teh POE switches and should not be impacted by AC power supplies.