How To Ground A Subpanel In A Detached Building. A detached building with a subpanel needs its own ground rod, regardless of if there are three wires or four wires feeding it. Building a garage sub panel is a convenient way to be able to shut off the power source to a garage, especially a garage that is detached from the house. My question is when i come out of my main box in the house down to the crawl space before i go in the ground.
Check local building codes to see if you have to mount a subpanel at a specific height.
How to change 120 volt subpanel into 240 volt subpanel. Building a garage sub panel is a convenient way to be able to shut off the power source to a garage, especially a garage that is detached from the house. My question is when i come out of my main box in the house down to the crawl space before i go in the ground. How to install a grounding electrode system. Subpanels have both similarities and differences with main panels. It seems like a strange question to ask. The superstructure is the part of a building above ground level. The portion of the wall between the ground level and the ground floor level is called plinth.