Material of grounding conductor
- Thread starter m sleem
- Start date
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John120/240
Senior Member
- Location
- Olathe, Kansas
Just exactly what is the question ?? The ground in Romex NM B is bare. #6 & #4 bare
are installed daily with no ill effects.
are installed daily with no ill effects.
jxofaltrds
Inspector Mike®
- Location
- Mike P. Columbus Ohio
- Occupation
- ESI, PI, RBO
Not sure if you ever "shall" use a bare wire. Now by default it has to be bare by a wiring method used but not mandated.
Correct?
jumper
Senior Member
- Location
- 3 Hr 2 Min from Winged Horses
Which code reference in particular do you want?
jumper,
for these two:
- it is permitted to use either bare or insulated every where except pool.
- it has to be bare by a wiring method used but not mandated (pool).
You really need more detail in your question. Which wire do you want to know about -- an equipment ground, a ground electrode conductor, or the Service grounded conductor? The word grounding usually means equipment ground conductor.
Some explicit places for permitting bare: 230.22, 230.30, 230.41, 250.62, 250.118, 250.119.
The prohibitions are scatted throughout the code book, but most are in article 680.
Some explicit places for permitting bare: 230.22, 230.30, 230.41, 250.62, 250.118, 250.119.
The prohibitions are scatted throughout the code book, but most are in article 680.
- Location
- Chapel Hill, NC
- Occupation
- Retired Electrical Contractor
I agree with the others. If you are looking for exact articles throughout the code then it may be difficult to name them all. What is the specific applicatin you have in mind?
- Location
- Chapel Hill, NC
- Occupation
- Retired Electrical Contractor
The NEC uses the term insulated equipment grounding conductor in articles, 250, 408, 517, 518, 520, 530, 555, 605, 610, 680 and 682
thanks for all,
i found in practice projects are using bare conductor(electrodes) and sometimes are using insulated conductor (electrodes).
that was my question.
When and where we shall use the bare grounding conductor (electrodes) ?
i found in practice projects are using bare conductor(electrodes) and sometimes are using insulated conductor (electrodes).
that was my question.
When and where we shall use the bare grounding conductor (electrodes) ?
Your grounding electrodes such as ground rods, metal underground piping, plates, loops, ufers etc. NEED to be bare.
Correct use of terminoligy is quite important when it comes to the code and can get one in or out of trouble fast.
May or shall?
Driver or ballast?
Grounding or grounded?
Etc. etc.etc.
subtle differences in words can make a big difference in what you SHALL do.
Correct use of terminoligy is quite important when it comes to the code and can get one in or out of trouble fast.
May or shall?
Driver or ballast?
Grounding or grounded?
Etc. etc.etc.
subtle differences in words can make a big difference in what you SHALL do.
i agree with you,
i'm trying to do but english language not my native language. sorry for all.
Then describe the wire in question. Is it the wire(s) the goes from the main disconnect panel to a rod/electrode buried in the ground? Is it the wire in a circuit which connects to the grounding pin on a receptacle and also bonds a metal box? Is it the "neutral" conductor of a utility service feeding your main disconnect panel? Is it the wire jumpers connecting a conduit bonding bushing to a ground bar?
Yes, I'm asking about the one is going from panel to ground rod and the one is going from rod to rod.
I saw in existing project that one is insulated. while i was thinking it should be bare reference to code.
- Occupation
- Licensed Electrician
There is no NEC requirement that the conductor you describe be bare.
Gregg Harris
Senior Member
- Location
- Virginia
- Occupation
- Electrical,HVAC, Technical Trainer
Take a look at 250.62 and 250.64
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