ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
Forums Calendar Active Threads
ECN Shout Chat
ShoutChat
Recent Posts
Safety at heights?
by gfretwell - 04/23/24 03:03 PM
Old low volt E10 sockets - supplier or alternative
by gfretwell - 04/21/24 11:20 AM
Do we need grounding?
by gfretwell - 04/06/24 08:32 PM
UL 508A SPACING
by tortuga - 03/30/24 07:39 PM
Increasing demand factors in residential
by tortuga - 03/28/24 05:57 PM
New in the Gallery:
This is a new one
This is a new one
by timmp, September 24
Few pics I found
Few pics I found
by timmp, August 15
Who's Online Now
0 members (), 504 guests, and 20 robots.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
Page 7 of 9 1 2 3 4 5 6 7 8 9
Re: Grounding Electrode Conductor Connector?
#14011 09/20/02 06:00 AM
Joined: Oct 2000
Posts: 5,392
S
sparky Offline
Member
(chucks an ROP under Virgil's bed..)
[Linked Image]

Go for it, i'm not sure where or how, perhaps via exception to current rulings???
Re: Grounding Electrode Conductor Connector?
#14012 09/20/02 08:56 AM
Joined: May 2001
Posts: 552
Magnolia,.Texas U.S.A.
T
txsparky Offline
Member
Go to www.ilsco.com and do a search on grounding and look at this bonding connector.GRM GRD CONNECTOR CU/ALUM.

It comes with a 1/4 or 5/16 stud and I suspect that this may be the purpose of the 1/4" ko.
I have had to use this fitting on larger services in the CT can to satisfy poco.

GRM
GRD CONNECTOR AL/CU


[This message has been edited by txsparky (edited 09-20-2002).]

[This message has been edited by txsparky (edited 09-20-2002).]

[This message has been edited by txsparky (edited 09-20-2002).]

Donnie
Re: Grounding Electrode Conductor Connector?
#14013 09/20/02 04:46 PM
Joined: Apr 2002
Posts: 197
G
Gwz Offline
Member
I rather imagine that about a year from now we'll have a CMP comment.
Re: Grounding Electrode Conductor Connector?
#14014 09/24/02 01:02 PM
Joined: Oct 2000
Posts: 2,749
Boston, Massachusetts USA
Joe Tedesco Offline
Member
Here is a reply from Mark Ode from UL

Quote
A weep hole or drain hole, usually located in each corner of the
enclosure must be left open and not used for a No. 4 grounding electrode
conductor, even though it fits extremely well, since the purpose of the
holes are to ensure that any water that may enter the enclosure for any
reason has the ability to drain out of the enclosure. By inserting
something into these holes and encumbering drainage, you may adversely
affect the operation of the equipment.

There are some panels that have the corner drain holes with an additional
small knockout inside of a larger knockout where either the small knockout
can be removed and a No. 4 inserted into the hole or the larger knockout
can be removed with a connector installed and then the No. 4 inserted into
the connector and tightened down. These knockouts were installed so that
the user would not hopefully feel the need to use the weep holes for this
purpose.

Joe Tedesco, NEC Consultant
Re: Grounding Electrode Conductor Connector?
#14015 09/24/02 02:23 PM
Joined: Nov 2000
Posts: 2,236
Likes: 1
West Virginia
sparky66wv Offline OP
Member
Quote
...where either the small knockout can be removed and a No. 4 inserted into the hole or the larger knockout can be removed with a connector installed and then the No. 4 inserted into the connector and tightened down...

The choice seems to be evident.

What about the lone 1/4" KO without an outer 1/2" KO around it?

[This message has been edited by sparky66wv (edited 09-24-2002).]

-Virgil
Residential/Commercial Inspector
5 Star Inspections
Member IAEI
Re: Grounding Electrode Conductor Connector?
#14016 09/25/02 02:55 AM
Joined: Mar 2001
Posts: 333
So San Francisco CA
S
stamcon Offline
Member
But are we back at what connector is listed for a bare #4?

Steve
Re: Grounding Electrode Conductor Connector?
#14017 09/25/02 10:11 AM
Joined: Nov 2000
Posts: 2,236
Likes: 1
West Virginia
sparky66wv Offline OP
Member
Yep, round and round we go!

Don'cha just love code loops!

-Virgil
Residential/Commercial Inspector
5 Star Inspections
Member IAEI
Re: Grounding Electrode Conductor Connector?
#14018 09/25/02 10:41 AM
Joined: Nov 2000
Posts: 2,148
IL
R
resqcapt19 Offline
Member
Just use the 1/4" ko and you don't need a connector per the UL response.
Don

Don(resqcapt19)
Re: Grounding Electrode Conductor Connector?
#14019 09/25/02 11:07 AM
Joined: Nov 2000
Posts: 2,236
Likes: 1
West Virginia
sparky66wv Offline OP
Member
But Don, they're only talking about the KO that is inside a 1/2" KO...

In other words, the one in my pix is left out of the options!

-Virgil
Residential/Commercial Inspector
5 Star Inspections
Member IAEI
Re: Grounding Electrode Conductor Connector?
#14020 09/25/02 01:12 PM
Joined: Nov 2000
Posts: 2,148
IL
R
resqcapt19 Offline
Member
Sparky,
It is not a weep hole and if a 1/4" KO inside of a larger KO doesn't require a connector for the GEC, then why should a 1/4" KO by itself require a connector?
Don

Don(resqcapt19)
Page 7 of 9 1 2 3 4 5 6 7 8 9

Moderated by  dougwells, electure, gfretwell, HotLine1, Scott35, Trumpy 

Link Copied to Clipboard
Member Spotlight
Admin
Admin
NY, USA
Posts: 3,682
Joined: October 2000
Top Posters(30 Days)
ale348 1
Popular Topics(Views)
319,398 Are you busy
244,423 Re: Forum
227,912 Need opinion
Privacy Policy · Forum Rules · Mark All Read · Forum Help · ECN Forum
Powered by UBB.threads™ PHP Forum Software 7.7.5