I am putting a sub-panel and found out the main panel don't have a ground bar or ground anywhere. This is an old building, so can I just bolt & nut my subpanel ground to the main panel casing.
2007-11-29 00:13:40 · 4 answers · asked by honker 4 in Home & Garden ➔ Do It Yourself (DIY)
Yes..The grounding bars(lugs) in the sub-panel can be connected to the case of the box,.IF....the common wires are not... Then the grounding bar is run to earth using a grounding cable & rod or connecting the cable to a water pipe which goes to earth.
2007-11-29 06:07:55 · answer #1 · answered by flea 5 · 0⤊ 0⤋
Can you ... sure, but it wouldn't be to code.
A ground is a safety feature that I personally would want to have. Why would you not fix the problem now that you know it exists. It's not that difficult to drive a ground rod and connect it up.
2007-11-29 08:30:22 · answer #2 · answered by agb90spruce 7 · 2⤊ 0⤋
if you "ground" the sub panel to an ungrounded main panel then the system is still ungrounded.....
time for a seperate ground wire to a rod into the earth......
2007-11-29 15:10:07 · answer #3 · answered by yankee_sailor 7 · 0⤊ 0⤋
You need to use a ground rod.
2007-11-29 08:23:48 · answer #4 · answered by Tim C 7 · 2⤊ 0⤋