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steve37887 11-12-2009 07:30 AM

Neutrals and grounds in main panel
I've got a detached garage, with its own 100 amp main service feeding it, not a sub panel. My question is can I land the neutrals and grounds on the same busses or do I need to seperate them. The two bars are bonded together and bonded to the panel and I realize I can't put them both on the same terminal. But is it ok to put neutral, ground, neutral, ground, etc. on the same bus? Thanks in advance for your help.

Scuba_Dave 11-12-2009 07:48 AM

If it's a service feed then neutral & grounds are connected buss bonded to the case
Is this fed right from a meter & not from a disconnect of any kind ?

steve37887 11-12-2009 08:01 AM

Yes, that is correct, it is fed directly from the meter.

Salem747 11-12-2009 08:06 AM

It is good practice to keep the neutrals on the neutral bus and the grounds on the ground bus, even though they are bonded in the main panel.

Usually the bond is hidden under the cover for the main so someone besides yourself looking in there may not know they are bonded and therefore equivalent.

Is your cable too short, box too full or something? Why not just connect them correctly?

Scuba_Dave 11-12-2009 08:12 AM

In my Main panel I usually land them on whichever side of the panel box they come in from
If the wire enters on the left I land them on the left
I dislike having the wire cross behind the main hots to get to the other side
And going down around the bottom of the panel is a lot of extra wire

The only time I would seperate is if I planned on installing a new Main & knew the panel would become a sub-panel

Salem747 11-12-2009 08:18 AM

All 3 of my panels have both neutral and ground busses on either side of the panel. I wouldn't try to cross over, that just makes a mess, but if possible, using the correct busses just means that someone won't take off the cover and go "WTF was this dude thinkin! Grounds on the neutral bus? Neutrals on the ground bus? Was he colour blind or something?"

steve37887 11-12-2009 08:20 AM

That was my reason for wanting to land them on the same buss if I could Dave. To me it looks neater to bring the cable in on the side the breaker it feeds is on and then land the neutral and ground at the closest terminal rather than fishing wire all over the panel to seperate. I just wanted to make sure it was legal to do this, I didn't see why it wouldn't be since both are bonded together anyhow, before I did and made my wires too short to reach the other side.

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