michalspike
Senior Member
- Location
- brooklyn, new york
We install 200 Amp 3ph panel for an apartment. Building electrician run 4x 4/0 +ground wire outside the building to a splice box located at 15 floor hallway stairs way. From that splice box I run 4x 3/0+ground wire in 2 inch metal conduit to panel location aprox. 20 feet+ 4 feet metal greenfield. In panel i used plastic busing and terminate my ground wire into ground lug. Is this truth i should use MIGB instead of plastic bushing?