All Questions
24
questions
2
votes
2
answers
108
views
"Main" panel wiring
At my property the power company installed the meter with a box below it with a 200 AMP breaker. There are lugs inside to attach wires directly to the bar so they feed directly from that breaker. So....
- 21
1
vote
2
answers
173
views
Is my metal building enough to bond subpanel to for a earth ground with neutral bar isolated? [closed]
I want to follow up my prior subpanel inquiry with another question for my understanding and overall grasp of neutral-ground-main supply-subpanel and building’s relationship.
I have an all metal ...
2
votes
1
answer
451
views
Bond neutral to service box and earth ground in shop sub?
I have ran underground ~40’ of 600V pvc ins. alumaflex 4way wire from code grounded 200A meter/load dist. combo box on permanent service pole to ungrounded 200A shop subpanel inside of shop. I don’t ...
0
votes
2
answers
189
views
Existing service panel has grounds on neutral bus and neutrals tied to grounding lug!
Opened this panel which serves a well pump on my property and was surprised to find the grounds bolted to the neutral bus bar, and the neutrals wired together to the grounding lug. I am pretty sure ...
- 1
0
votes
1
answer
153
views
Adding ground wire to sub panel
I have a service drop 50’ from my cabin. 2 runs of 1/0 aluminum underground wire (3 wire system) were run underground in 2” PVC conduit pulled in to a junction box and then one run was wired into the ...
- 1
9
votes
1
answer
547
views
Do the EGC and GEC both terminate at grounding bar in new sub-panel in detached building (garage)?
Edit: My rough location: Grand Rapids, Michigan, USA
There are a million questions and youtube videos on the topic, and I'm sure one of them clearly answers this question because it seems so ...
- 91
1
vote
2
answers
290
views
ITE EQ Load Center neutral / ground update
Here’s an update on the main panel neutral issues that I raised originally in another question. I relabeled the photo, and made a diagram to show the problem. This post restates the issue, I hope more ...
- 370
3
votes
2
answers
5k
views
Should a subpanel in the same building have its own grounding rod?
I'm installing a subpanel on the opposite side of my home. To be clear the subpanel will be attached to the same structure as the main panel (the main panel does have a grounding rod), just on the ...
- 161
2
votes
0
answers
81
views
Is there an exception to running a fourth ground wire when upgrading a sub panel
I am upgrading a 1950 homes sub panel from a fuse panel to a breaker panel. It’s is a three wire system running the fuse panel. The panel is down stairs on a interior wall about 50 feet from the main ...
- 21
0
votes
2
answers
429
views
Ground wire in subpanel
I'm adding a circuit to a subpanel in my garage (built in the late 70s), and I've been reading a lot about subpanel ground / neutral bonding (how it's not supposed to be bonded at the subpanel, and ...
- 247
6
votes
5
answers
3k
views
Risk of bonding neutrals and grounds in sub-panel
I am replacing my complete electrical service entrance (weatherhead, meter box, breaker panel in the house). The meter housing I have chosen is a meter/main combo that will have a 200 AMP breaker. So ...
- 173
2
votes
1
answer
749
views
Should the grounds and neutrals be isolated in this subpanel?
I have a main disconnect panel outside by my meter.
I've got the two hot legs, a neutral and a ground wire from a ground rod below the meter coming into the panel. The neutral and ground wires are ...
- 82.8k
2
votes
2
answers
1k
views
Can I use an existing Ground Rod for Sub-Panel in Detached Garage (Meter box is using the rod currently)
Two buildings: Home and Detached Garage (circa '04 US). Service comes in through a Meter on the Garage to a PVC conduit into the Main box in the home (Single phase 240V with Neutral). In the main box ...
- 21
5
votes
2
answers
1k
views
Replacing subpanel that was fed with 3 wires
A contractor replaced my subpanel with a new one, and will come back for other work and inspection. (Old subpanel is Federal Pacific.) My home is in California, built in early 1980s. The subpanel is ...
- 263
0
votes
1
answer
456
views
Can I reuse the aluminum feeder wire when I replace a sub-panel?
I'm rewiring my 1957 house because there was no ground. I have a main panel and a subpanel in the crawlspace that currently only give power to the gas furnace. I want to add the air conditioner on the ...
