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Smyrna, GA
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Lafayette, Louisiana
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 Strange Grounding Configuration
[#2] Posted: 06/23/2012 - 2:36:55 PM |  |  |
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I couldn't find anything against it in the NEC...just that the connection to the grounded service conductor must be on the supply side of the main disconnecting means.
The AHJ might have a problem with those plastic ties used to secure the GEC.
Marc
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"If Guam gets too overpopulated, it might tip over."
Congressman Hank Johnson (D) GA |
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LaPorte, IN
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Smyrna, GA
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Lafayette, Louisiana
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Strange Grounding Configuration
[#5] Posted: 06/23/2012 - 7:59:54 PM | | |
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Eloquent? I think it's a waste of wire. The panel is much closer to the ground rod than the weather head.
Marc
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"If Guam gets too overpopulated, it might tip over."
Congressman Hank Johnson (D) GA |
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Smyrna, GA
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Chestertown, MD
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Strange Grounding Configuration
[#7] Posted: 06/25/2012 - 2:30:05 PM | | |
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How far into the house is the panel? Sounds like an extterior disconnect would be required as the unfused cable is not as short as practical.
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Smyrna, GA
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LaPorte, IN
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Strange Grounding Configuration
[#9] Posted: 06/29/2012 - 3:19:16 PM | | |
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Quote: Originally posted by mlparhamQuote: Originally posted by Jim Port
How far into the house is the panel? Sounds like an extterior disconnect would be required as the unfused cable is not as short as practical.
You're right. Since it was a 60 year old house I told them it had to be torn down becuase it does not meet current codes.
Very clever of you. What was their reply to you?
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Smyrna, GA
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Strange Grounding Configuration
[#10] Posted: 07/08/2012 - 08:54:04 AM | | |
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Quote: Originally posted by brricQuote: Originally posted by mlparhamQuote: Originally posted by Jim Port
How far into the house is the panel? Sounds like an extterior disconnect would be required as the unfused cable is not as short as practical.
You're right. Since it was a 60 year old house I told them it had to be torn down becuase it does not meet current codes. Very clever of you. What was their reply to you?
The buyers were impressed. They felt like they got their monies worth out of me.
I just had an epiphany. Here's my new business model. Just look up the age of the house in the tax records. If it's more than ten years old send an email that says it does not meet current building codes and needs to be torn down. I bet I could do fifty of these before lunch and never leave the office.
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Morgan Parham, PE
HomeTech Engineering & Inspection Group |
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Washington, D.C.
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Strange Grounding Configuration
[#11] Posted: 08/05/2012 - 1:50:22 PM | | |
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This will probably get to you too late to be of benefit, but I hope not. If I understand you correctly, the main grouding electrode conductor (gec) has been disconnected due to the installation of plastic plumbing. If there is still metallic water piping in the house, 5' or more in length, then there must be a gec run to it from the panel. The neutral conductor can be connected to the ground conductor at only one location at the building. What your picture shows is actualy redundant; the power company has done this at their transformer. This "ground" wire is now a parallel neutral conductor and as such is undersized and dangerous.
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Lafayette, Louisiana
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Strange Grounding Configuration
[#13] Posted: 08/06/2012 - 02:47:12 AM | | |
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| Quote: Originally posted by Marc
[quote]Originally posted by Ed Holt
This will probably get to you too late to be of benefit, but I hope not. If I understand you correctly, the main grouding electrode conductor (gec) has been disconnected due to the installation of plastic plumbing. If there is still metallic water piping in the house, 5' or more in length, then there must be a gec run to it from the panel. The neutral conductor can be connected to the ground conductor at only one location at the building. What your picture shows is actualy redundant; the power company has done this at their transformer. This "ground" wire is now a parallel neutral conductor and as such is undersized and dangerous.
I don't follow. The ground conductor at the weather head is connected to a grounding electrode. Redundant? Electrically, yes, but the code wants a local grounding electrode to serve the building that's separate from the utility's grounding.
What am I missing?
Marc
You are correct. The more electrodes connected to the service neutral the better. Mettalic water pipe, rods, ufer, plates, etc.
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Chestertown, MD
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