On Dec 3, 1:09*pm, (Doug Miller) wrote:
In article , stryped wrote:

My detached garage has the two grounding busses. (The one this sub
panel will feed.).

Post another photo. My recollection from the previous discussion a couple
months back is that the photo you posted then showed two _neutral_ busses and
one grounding bus, and you were confused about which was which -- you thought
one of the neutral busses was the grounding bus, and you had no idea what the
actual grounding bus was for.

I think you're still confused.



There are only two items hooked to this sub panel and they dont have a
neutral. One to a 50 amp breaker for my upstairs 1 ton unit and one 20
amp breaker to my outside unit. (This is my small heat pump for a
bonus room), Black wire to breaker, white wire to breaker, and ground.
That is it.

OK, so it's not a problem in your branch circuit wiring. What about all the
*other* things I told you to check? (reproduced below)



- Have you confused the neutral and ground busses?

- Is there a jumper connecting the two busses?

- Is there a second bonding screw? I seem to recall from earlier discussions
that your panel has two neutral busses. If they're bonded together, and to
the box, and you removed only one bonding screw, well...- Hide quoted text -

- Show quoted text -

The photo you are refering to was to a second sub panel in the
detached garage. This one is in my attached garage.

I think I have figured out what is wrong.

I dont think the square d panel I am refering to in the attached
garage came with a grounding bus. (The GE panel int he attached garage
did). What I was thinking was the grounding bus is actually I believe
a second neutral bus.

I will check for continuity between the two busses in the cabinet and
the enclosure and if there is none, will buy one or two grounding
buses. I think that might be the problem all along.

What I dont understand is why the need to separate the neutral bus and
ground as they all end up combined in the main panel anyway.

Also, I always heard it was bad to have multiple ground paths. If I
have a ground rod for the house and one for the detached garage, arent
these all connected? All sub panels will be attached to the house
ground and the sub panel in the detached garage will also be attached
to another ground rod. AM I misisng something?