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Is this ground bar OK #107704 08/12/04 07:35 AM
Joined: Dec 2000
Posts: 4,283
electure Offline OP
Member
Quote
came across this ground bar in a otherwise normal & clean looking panel... I didn't make a huge issue of it to the owner of the store, but I did note it in the contract.....

Randy


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Re: Is this ground bar OK #107705 08/12/04 11:09 AM
Joined: May 2004
Posts: 162
C
cpal Offline
Member
Are those sheetmetal screws w/washers??

looks a little shakey 250.8 maybe 110.3 (B)??

Re: Is this ground bar OK #107706 08/12/04 11:27 AM
Joined: May 2003
Posts: 1,155
dougwells Offline
Member
those screws are called Wafer teks they are all in in , I would use them mounting boxes to steel studding.

Re: Is this ground bar OK #107707 08/12/04 11:31 AM
Joined: Feb 2002
Posts: 840
C
CTwireman Offline
Member
Looks like a GE ground bar in a Cutler Hammer panel. Not quite compatible.

Peter


Peter
Re: Is this ground bar OK #107708 08/12/04 05:01 PM
Joined: Jul 2004
Posts: 41
N
necbuff Offline
Member
I don't believe this installation is code compliant. Sheet metal screws are not permitted to connect grounding conductors to enclosures. 250.8........... In this case, tek (self tapping) screws.


Kenny Wilee
Re: Is this ground bar OK #107709 08/12/04 06:13 PM
Joined: May 2003
Posts: 2,876
E
e57 Offline
Member
Is it me, or does that bar look like it was cut in half for some reason?

If so both are a no-go.


Mark Heller
"Well - I oughta....." -Jackie Gleason
Re: Is this ground bar OK #107710 08/12/04 07:47 PM
Joined: Nov 2003
Posts: 127
S
Sir Arcsalot Offline
Member
Quote
Is it me, or does that bar look like it was cut in half for some reason?

Hmmm... split busses are BAD NEWS any way you look at them!!!!!!!

I just could not resist...!


No wire bias here- I'm standing on neutral ground.
Re: Is this ground bar OK #107711 08/13/04 12:13 AM
Joined: Sep 2002
Posts: 892
N
NORCAL Offline
Member
IMO, GE has the worst ground bars around, that split is "normal" for them.

Re: Is this ground bar OK #107712 08/13/04 04:43 AM
Joined: Jun 2003
Posts: 681
P
PCBelarge Offline
Member
This poses an interesting situation for inspectors.
Do we violate the installation for not using the proper listed equipment for the enclosure, or do we say at least they separated the equipment grounds from the neutral so I am satisfied?
This is a very typical installation I see almost everyday.
This is clearly a violation of 110.3(B), but...

I will say this; I have seen large faults where the connection of the fittings and the screws were scortched - obviously not a good sign for the fault current path.

Pierre


Pierre Belarge
Re: Is this ground bar OK #107713 08/13/04 02:46 PM
Joined: Feb 2004
Posts: 1,434
Lostazhell Offline
Member
110.3(B) is the first thing that came to mind with me when I saw this also... The thing I mostly was concerned about was that the panel can is being used as the bonding means (No separate EGC coming in with the feeders via EMT). If it comes down to clearing a fault on the 60A 240V A/C circuit which is connected in this panel, will the buttonheads or wafer teks be reliable in doing so?

Could this technically fall under 250.8?

-Randy

-Randy


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