Grounds and Neutral

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Alwayslearningelec

Senior Member
Location
NJ
Occupation
Estimator
Where can I read and learn about when circuits require neutrals and grounds. I know that you can use conduits as a ground sometimes but I also know there are many different scenarios for the use of grounds and neutrals. Thanks.
 

Article 90.1

Senior Member
Article 200 "Use and Identification of Grounded Conductors"
Article 250 "Grounding and Boding"

Grounding = Ground
Grounded = Neutral

Think of the above two words in their verb form: Grounding implies that the action is continuous and incessant. Grounded implies that the act of grounding has happened. While this may be a bit fuzzy, think of it as you read through the two articles mentioned.
 

Dennis Alwon

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Location
Chapel Hill, NC
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Retired Electrical Contractor
Where can I read and learn about when circuits require neutrals and grounds. I know that you can use conduits as a ground sometimes but I also know there are many different scenarios for the use of grounds and neutrals. Thanks.
Circuits almost always need grounds and neutrals are required where there is equipment that need them. Of course, a neutral must be brought to the service disconnect but need not go any further if there is no call for one.

There are numerous places in the code where conduit is not accepted as a egc but generally metallic conduit is acceptable. Pools are one area where an insulated ground is required. Isolated ground recep. where req. must also have an insulated ground.

I guess there isn't one book that will tell you all this info other than the Nec
 

Alwayslearningelec

Senior Member
Location
NJ
Occupation
Estimator
Circuits almost always need grounds and neutrals are required where there is equipment that need them. Of course, a neutral must be brought to the service disconnect but need not go any further if there is no call for one.

There are numerous places in the code where conduit is not accepted as a egc but generally metallic conduit is acceptable. Pools are one area where an insulated ground is required. Isolated ground recep. where req. must also have an insulated ground.

I guess there isn't one book that will tell you all this info other than the Nec

Thanks......
 

nhfire77

Senior Member
Location
NH
I have never read Mikes book, I am sure it is great. If you are looking for something else:


Soares Book on Grounding and Bonding

Edit: Nevermind already posted Durrrrrrrr.
 
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