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#194119 - 05/11/10 01:20 PM Working on stolen copper replacement - 350/3 GGC  
Grover  Offline
Member
Joined: Jan 2005
Posts: 109
Sebago, ME, USA
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


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#194120 - 05/11/10 09:06 PM Re: Working on stolen copper replacement - 350/3 GGC [Re: Grover]  
Tesla  Offline
Member
Joined: Jun 2004
Posts: 1,273
Sacramento, CA


Tesla

#194127 - 05/12/10 03:16 PM Re: Working on stolen copper replacement - 350/3 GGC [Re: Tesla]  
Grover  Offline
Member
Joined: Jan 2005
Posts: 109
Sebago, ME, USA
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


#194128 - 05/12/10 04:25 PM Re: Working on stolen copper replacement - 350/3 GGC [Re: Grover]  
Tesla  Offline
Member
Joined: Jun 2004
Posts: 1,273
Sacramento, CA
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

#194178 - 05/14/10 11:04 AM Re: Working on stolen copper replacement - 350/3 GGC [Re: Tesla]  
Grover  Offline
Member
Joined: Jan 2005
Posts: 109
Sebago, ME, USA
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



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