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#194119 - 05/11/10 10:20 AM Working on stolen copper replacement - 350/3 GGC
Grover Offline
Member

Registered: 01/19/05
Posts: 110
Loc: 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 06:06 PM Re: Working on stolen copper replacement - 350/3 GGC [Re: Grover]
Tesla Offline
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Registered: 06/16/04
Posts: 1280
Loc: Sacramento, CA
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Tesla

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#194127 - 05/12/10 12:16 PM Re: Working on stolen copper replacement - 350/3 GGC [Re: Tesla]
Grover Offline
Member

Registered: 01/19/05
Posts: 110
Loc: 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

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#194128 - 05/12/10 01:25 PM Re: Working on stolen copper replacement - 350/3 GGC [Re: Grover]
Tesla Offline
Member

Registered: 06/16/04
Posts: 1280
Loc: 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

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#194178 - 05/14/10 08:04 AM Re: Working on stolen copper replacement - 350/3 GGC [Re: Tesla]
Grover Offline
Member

Registered: 01/19/05
Posts: 110
Loc: 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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