rob-1
Member
- Location
- California
Hi all,
not an electrician but long history of electronics and trouble shooting with major "telephone co" b4 retiring.
Bought an old house to fix up and sell. the former main service entrance panel is now a sub-panel which is being fed by a new main about 50 ft away on the same structure.
The former main panel's (here to forth sub-panel) neutral bus bar is bonded directly to ground by a ground wire connecting the neutral buss bar to a cold water pipe coming out of the ground. In addition, the sub-panel itself is grounded by a ground wire coming from the main. This ground is connected directly to the panel.
FYI: H-H-N + ground feeding the sub-panel. Also, the sub-panel's feeder breakers are 100amp and so are the feeder breakers on the main panel.
Question:
From what I've read there is a problem here because i understand that the neutral and ground are NOT to be bonded together in a sub-panel. Lastly, there is a 30 amp double pole breaker in this sup-pan. Two hot wires on the breakers and a green wire connected to the neutral buss bar. I'm wondering if who ever ran this circuit was trying to get a ground off the neutral bar. If it had been a white wire to the neutral bar for this circuit I wouldn't have gave it a 2nd thought.
Well, I know this is a handful so my gratitude in advance to all "pros" who can chime in.
Oh, I know someone may say "get an electrician out there". That's fine, but I still want to understand this.
Thanks,
Rob-1
not an electrician but long history of electronics and trouble shooting with major "telephone co" b4 retiring.
Bought an old house to fix up and sell. the former main service entrance panel is now a sub-panel which is being fed by a new main about 50 ft away on the same structure.
The former main panel's (here to forth sub-panel) neutral bus bar is bonded directly to ground by a ground wire connecting the neutral buss bar to a cold water pipe coming out of the ground. In addition, the sub-panel itself is grounded by a ground wire coming from the main. This ground is connected directly to the panel.
FYI: H-H-N + ground feeding the sub-panel. Also, the sub-panel's feeder breakers are 100amp and so are the feeder breakers on the main panel.
Question:
From what I've read there is a problem here because i understand that the neutral and ground are NOT to be bonded together in a sub-panel. Lastly, there is a 30 amp double pole breaker in this sup-pan. Two hot wires on the breakers and a green wire connected to the neutral buss bar. I'm wondering if who ever ran this circuit was trying to get a ground off the neutral bar. If it had been a white wire to the neutral bar for this circuit I wouldn't have gave it a 2nd thought.
Well, I know this is a handful so my gratitude in advance to all "pros" who can chime in.
Oh, I know someone may say "get an electrician out there". That's fine, but I still want to understand this.
Thanks,
Rob-1