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Grounding Electrode Conductor Connector? #13951
09/14/02 01:21 PM
09/14/02 01:21 PM
sparky66wv  Offline OP
Member
Joined: Nov 2000
Posts: 2,236
West Virginia
Is the 1/4" Knock-out hole in the bottom of some 3-R panels and discos an additional "weep" hole (they already have two, one in each corner...) or are they intended for use for the GEC to pass through?

If not, what type of connectors are listed for #6 and #4 bare copper solid soft drawn wire? The NM connectors I buy are only listed for 2 14-2-Gs to 1 10-2-G NM or UF Cables.

I have a feeling I've been doing this wrong for a long time...

[This message has been edited by sparky66wv (edited 09-14-2002).]


-Virgil
Residential/Commercial Inspector
5 Star Inspections
Member IAEI
Work Gear for Electricians and the Trades
Re: Grounding Electrode Conductor Connector? #13952
09/14/02 05:55 PM
09/14/02 05:55 PM
N
nesparky  Offline
Member
Joined: Jun 2001
Posts: 642
omaha,ne
I have always used the 1/4 knockout fot the #6 ground wire. Was tought that that is why it's there. Never had any inspector say anythig about it. Have worked in 5 different states and at least 15 different cities.


ed
Re: Grounding Electrode Conductor Connector? #13953
09/14/02 07:49 PM
09/14/02 07:49 PM
HotLine1  Offline

Member
Joined: Apr 2002
Posts: 6,918
Brick, NJ USA
66WV:
We use a 1/2" ko, and a MNC conn. Other than that a 1/2" ko, emt/pvc, etc.
Never used the 1/4 hole.
John

BTW; snail mail went Friday, late afternoon


John
Re: Grounding Electrode Conductor Connector? #13954
09/14/02 08:13 PM
09/14/02 08:13 PM
sparky66wv  Offline OP
Member
Joined: Nov 2000
Posts: 2,236
West Virginia
What's the hole for?

Nothing in the Disco Instructions pertaining to it...

[Linked Image]

Thanks, John... (looking forward to the mail)

<dumb question>
What's an MNC connector?
</dumb question>

Crap, won't get to put the "100% Code Compliant" sticker on the service I did today...



[This message has been edited by sparky66wv (edited 09-14-2002).]


-Virgil
Residential/Commercial Inspector
5 Star Inspections
Member IAEI
Re: Grounding Electrode Conductor Connector? #13955
09/14/02 08:41 PM
09/14/02 08:41 PM
Bill Addiss  Offline
Member
Joined: Oct 2000
Posts: 3,890
NY, USA
Virgil,

Are you talking about a hole or a 1/4" KO? If you have to punch it out how can it be there for drainage (or 'weep')?

Bill

Re: Grounding Electrode Conductor Connector? #13956
09/14/02 08:57 PM
09/14/02 08:57 PM
sparky66wv  Offline OP
Member
Joined: Nov 2000
Posts: 2,236
West Virginia
[Linked Image]

This first pic shows the weephole to the left, and the 1/4" KO to the center.

[Linked Image]

This second pic shows the weephole on the right.

So, what's it for?

<perfectionist>
Man, I didn't notice before how crooked the washers were...
</perfectionist>

[This message has been edited by sparky66wv (edited 09-14-2002).]


-Virgil
Residential/Commercial Inspector
5 Star Inspections
Member IAEI
Re: Grounding Electrode Conductor Connector? #13957
09/14/02 09:23 PM
09/14/02 09:23 PM
Bill Addiss  Offline
Member
Joined: Oct 2000
Posts: 3,890
NY, USA
I always thought they were there to be used. They are also in the Bottom and Top of every indoor-rated panelboard that I've ever seen. I've always used them for the GECs.

Bill

Re: Grounding Electrode Conductor Connector? #13958
09/14/02 09:27 PM
09/14/02 09:27 PM
sparky66wv  Offline OP
Member
Joined: Nov 2000
Posts: 2,236
West Virginia
Joe T., what is your take on this?

[Linked Image]


-Virgil
Residential/Commercial Inspector
5 Star Inspections
Member IAEI
Re: Grounding Electrode Conductor Connector? #13959
09/14/02 10:43 PM
09/14/02 10:43 PM
J
Joule-E  Offline
Member
Joined: Aug 2002
Posts: 25
I thought they were for the flanges (the bolts that hold them on, rather) that fit over the big holes for weather heads. I dunno its always been a guess.

Re: Grounding Electrode Conductor Connector? #13960
09/14/02 10:48 PM
09/14/02 10:48 PM
B
Bjarney  Offline
Moderator
Joined: Apr 2002
Posts: 2,527
West-Southern Inner-Northeast ...
A regional practice in parts of NorCal is the use of 8-, 6- or 4-AWG galvanized/armored bare copper with a 3/8-inch "two screw" connector, and a ground clamp that independently secures/bonds the armor and copper conductor. I believe this has evolved from details in utility-accepted service-entrance requirements.

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