ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
ShoutChat
Recent Posts
Danish type K Sockets
by winston_1 - 10/25/21 07:30 PM
Flexible Conduit?
by gfretwell - 10/24/21 01:59 AM
May I backfeed 3 phase transformer?
by dsk - 10/22/21 04:37 AM
Wire sizing
by gfretwell - 10/21/21 10:12 PM
GFCI's pops in large numbers
by dsk - 10/21/21 02:03 AM
New in the Gallery:
240/208 to a house
240/208 to a house
by wa2ise, October 9
Now you know.
Now you know.
by Tom_Horne, September 7
Who's Online Now
0 members (), 19 guests, and 20 robots.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
Joined: Jan 2005
Posts: 109
Grover Offline OP
Member
Thieves got a bunch of copper - 15 runs in all - 2 runs are type GGC. Unfamiliar to me.

Can someone make me smarter about the GGC application? Has 2 ground wires, and a smaller "check wire".

Thanks!

Grov

Joined: Jun 2004
Posts: 1,273
T
Member


Tesla
Joined: Jan 2005
Posts: 109
Grover Offline OP
Member
Thanks for comment. I know it's mining cable, and EXPENSIVE, What I'm looking for is how it's used for ground check....

Grov

Joined: Jun 2004
Posts: 1,273
T
Member
The ground check cable is used in conjunction with a meter to determine if the grounding path has become impaired due to mechanical action/ pulling tension.

The logic is similar to a hospital setting: the grounding path must be perfect at all times to avoid a catastrophic spark.

The pdf lists the ohms per foot of the various cables. Any deviations from factory spec indicate a degraded grounding path. Continuous monitoring from the source end would permit the circuit to be de-energized the instant something went awry.



Tesla
Joined: Jan 2005
Posts: 109
Grover Offline OP
Member
Hi Tesla

Didn't see the PDF you referred to, but I think I've got the concept - sorta like a GFI on steroids:-)

Thanks!


Grov


Link Copied to Clipboard
Featured:

Tools for Electricians
Tools for Electricians
 

* * * * * * *

2020 Master Electrician Exam Preparation Combos
2020 NEC Electrician
Exam Prep Combos:
Master / Journeyman

 

Member Spotlight
waymag
waymag
dallas, texas, USA
Posts: 70
Joined: January 2002
Top Posters(30 Days)
dsk 7
Popular Topics(Views)
284,881 Are you busy
217,429 Re: Forum
203,743 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.7.5