Inpector says, No ground!

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  #1  
Old 08-01-01, 11:48 AM
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I am in the process of purchasing a home for the first time. We had the home inspected last week and he said that the electrical service to the house was not grounded. How easy/difficult would this be to fix, and what all would be involved? Any help would be appreciated.
 
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  #2  
Old 08-01-01, 09:34 PM
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Check with your local Code enforcement [electrical inspector] [Authority Having Jurisdiction] to see if you have a local ordinance requiring an existing home to be with an equipment grounding system. If no local ordinance is present requiring this grounding electrode system or equipment grounding system, then the NEC does not require a grounding system to be installed in an existing home that was originally wired and approved under a previous NEC version that did not require that grounding electrode system or equipment grounding system. Now if anything new is installed, or you have unsafe wiring in the home declared by the Authority having Jurisdiction to be unsafe, then that new wiring must meet the current NEC version adopted by your local government as a rule of law or as law. Otherwise without a local ordinance then you have an existing wiring system not required to be with grounding due to the version of NEC it was wired in is still recognized and forever it be unless you change the integrity of that wiring, or it becomes unsafe in the mind of the local Electrical inspector who if the Authority Having Jurisdiction. Contact him or her, he or she can put your mind at ease, that AHJ is the final authority on that subject whether it is existing or not.

Now is you want to install an equipment grounding conductor on a branch circuit and if you have a grounding electrode system installed at the main service rated panel, then you may run a completely new branch circuit from that main service rated panel the entire length of that branch circuit. If you want to install an equipment grounding conductor on a specific receptacle that you are replacing from a non grounded receptacle to a grounding type receptacle then you may install a green insulated wire from that replaced receptacle directly to the main service rated panel and connected to the equipment grounding bar in that main service rated panel or it serving grounding electrode within 5' of the entry of that grounding electrode conductor.

Hope this helps


Wg
 
  #3  
Old 08-02-01, 07:48 AM
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Congratulations on purchasing your first house but don't leave the electrical service un-grounded.The basic grounding system is simply a conductor between the service panel and the water service, the under-ground metal pipe/tubing that supplies water to the house being the most common type of a grounding electrode.The closer the water service is to the electrical service the easier the job.An un-grounded service suggests an old service which leads to 2 basic questions-what is the rating of the service in amps. and are there fuses or circuit breakers? Please reply with information on the electrical and water services.You have the option of exterior grounding rods since this ground is better than NO ground.
 
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Old 08-03-01, 07:59 AM
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Thanks to Switchman and Wgoodrich for you help.

In response to switchman, The electrical system does use circuit breakers and has 125 amp service. Pardon my electrical ignorance, but is that what most modern systems have? I think that the reason that it is not grounded may be due to the fact that the water main is not easily accessible. The inspector was not able to find the main shutoff valve. I'm thinking we'll have to use the grounding rods. We haven't closed on the place yet so I haven't been out there to check on it(where the water pipe is in relation to the electric meter) since the inspection.
 
  #5  
Old 08-04-01, 12:16 PM
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Not closed have the home owner bring it to code or rebate the cost this is a Killer issue no is not an answer!
Then take the money and run #6 bare stranded from the ground/neutral bar in the panel to the water meter ,clamp it on one side then the other , so plumber can remove meter with out dieing,run an other piece of #6 from the ground/neuteral bar outside to a ground rod 8' driven into the ground and clamp it.
 
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