In 250.24A1 it states that at the meter enclosure is an acceptable point to ground your system. So If I ground at the meter base which is on a pole outside then bring my service conductors into a home 25ft away and not connect to the EGS at the service disconnect then that is code compliant. So then could I ground at the meter then take multiply sets of service conductors to different buildings and not connect to the EGS at each service disconnect?
250.24A Grounding Service supplied alternating current systems
- Thread starter stephena
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Having a brain cloud tonight... EGS = ?
Locally, normally if the meter is located away from the structure a ground rod is installed because (a) the AHJ considers the mounting means a "separate structure" and/or (b) POCO wants a ground rod at the meter.
In any event that ground rod does not serve as a grounding electrode for the services where they terminate at the building as each structure must have it's own Grounding electrode system.
Locally, normally if the meter is located away from the structure a ground rod is installed because (a) the AHJ considers the mounting means a "separate structure" and/or (b) POCO wants a ground rod at the meter.
In any event that ground rod does not serve as a grounding electrode for the services where they terminate at the building as each structure must have it's own Grounding electrode system.
meternerd
Senior Member
- Location
- Athol, ID
- Occupation
- retired water & electric utility electrician, meter/relay tech
Check with your utility. Many (including ours) do not allow grounding of the grounded conductor inside the sealable meter enclosure itself. They may also require a service disconnect at the meter. If it has a service disconnect with it, the utility side is usually "barriered" from the main disconnect compartment and sealed. Any grounding takes place in the unsealed section.
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- Location
- Chapel Hill, NC
- Occupation
- Retired Electrical Contractor
I think egs = grounding electrode system (GES)
It doesn't say anything about the meter if it's seperately mounted or not and that's my point. We have to go by what it says and it clearly says in the meter socket is an acceptable method. So now all I'm trying to do is use that to only have to ground there and not at each building. Now granted I see the safety issues that would be raised as far as lighting, surges, and so forth having to travel the entire length back to the meter, but am I right or wrong in interpretting what 250.24B is stating? Remember it says nothing about the meter being seperated and a pole isn't considered a structure.
- Location
- Illinois
- Occupation
- retired electrician
In my opinion it is.
- Location
- Bremerton, Washington
- Occupation
- Master Electrician
A pole is most certainly a structure, otherwise there would not be exception 3 in 225.32.
Did you look at the definition of a structure?
Did you look at the definition of a structure?
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