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Joined: Jan 2005
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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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Joined: Jun 2004
Posts: 1,273
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Tesla
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Joined: Jan 2005
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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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Joined: Jun 2004
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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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Joined: Jan 2005
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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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Posts: 7,398
Joined: April 2002
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