grounding conductor

Status
Not open for further replies.

joeboo94

Member
Our electrical inspector,required us to pull a ground in a one inche rigid conduit. The conduit feed a small lighting panel. I always thought that you could use the conduit as the ground.
 

eprice

Senior Member
Location
Utah
Re: grounding conductor

If by ground you mean an equipment grounding conductor, I agree with you. 250.118 Item (2).
 

ryan_618

Senior Member
Re: grounding conductor

I'm not saying I don't believe you, but find out who the real culprit is in case it is not the inspector. I require equipment grounds in metal raceways IF it is required by the engineer on the plans. It may be a design issue.
 

unicorn

Member
Re: grounding conductor

Most plans now spec a grounding conductor.I had this same conversation at work today.
 

pierre

Senior Member
Re: grounding conductor

Ryan
Not to start a situation here, but if the plans call for an equipment grounding conductor in a metallic raceway, how can you as an inspector violate it? Is it not a design issue to be taken up with the engineer? Just asking

Pierre
 

iwire

Moderator
Staff member
Location
Massachusetts
Re: grounding conductor

Pierre, I have asked the same questions before.

In the area I work the inspectors enforce the code no more no less.

The job specs are enforced by people sent from the engineers office who come by quite often depending on the job, taking pictures and notes.

Any deviations from specs come to light at job meetings or punch lists.

What I was told before is some areas enforce what they saw at plan check, I am curious as to what article they cite to fail a job that meets code but not specs? :confused: :confused:

How does that work Ryan?
 

joeboo94

Member
Re: grounding conductor

This is not a "designed" job, just a lighting panel. The inspector said it was required by the code. Can you tell me the article that says this.
 

dereckbc

Moderator
Staff member
Location
Plano, TX
Re: grounding conductor

Originally posted by joeboo94:
This is not a "designed" job, just a lighting panel. The inspector said it was required by the code. Can you tell me the article that says this.
250.118 tells you what can be used as an EGC
 

ryan_618

Senior Member
Re: grounding conductor

Bob/Pierre:

Your question is a very good one. I hope you realize that I pride myself on enforcing the minimum code, but this is a sticky one. When I right this kind of issue, I right on the report that the EGC is to be installed, as per the EE. If the installer wishes to discuss it, and they often do, I have no problem with that, but they must discuss it with the engineer, not me.

Once a plan is stamped by me, it is a legal binding document. I have the responsibility of enforcing the code, but I also have the responsibility of enforcing the plan, as it is a legal document.

I have no problem signing off on a compliant installation, but the engineer has to roll over and not require the EGC.
 

al hildenbrand

Senior Member
Location
Minnesota
Occupation
Electrical Contractor, Electrical Consultant, Electrical Engineer
Re: grounding conductor

JoeBoo94,

This isn't, by chance, a 277/480 V lighting panel?
 

al hildenbrand

Senior Member
Location
Minnesota
Occupation
Electrical Contractor, Electrical Consultant, Electrical Engineer
Re: grounding conductor

I'm thinking about 250.97. I'm fishing for more detail.
 

al hildenbrand

Senior Member
Location
Minnesota
Occupation
Electrical Contractor, Electrical Consultant, Electrical Engineer
Re: grounding conductor

Fair question. JoeBoo94 wrote:
pull a ground in a one inch rigid conduit. The conduit feeds a small lighting panel.
It sounds like this is a grounding conductor pulled in with the lighting panel feeder conductors, but I could interpret this to be a seperate 1" RMC just for the grounding conductor. . .and for that matter, is the rigid metal or nonmetallic?

A little more detail from JoeBoo94 will elicit more accurate resposes from the community, IMO.
 

earlydean

Senior Member
Re: grounding conductor

Again, guys, you cannot ignore the building code. Section R106.4 of the IRC requires work to be installed in accordance with the approved construction documents, and any changes must be re-submitted for approval as an amended set of construction documents. The inspector is 100% right in enforcing the specs if they require insulated EGCs in addition to the conduit EGCs, unless there is an amended set of construction documents on file at the time of the inspection.
It is interesting to note that Article 80 of the NEC also has similiar rules in 80.21(C)(3).
 

joeboo94

Member
Re: grounding conductor

This is a 240v single phase panel,feeding three outlet circuts and one lighting circut.All i really wanted to know is if i could have used the one inche grc,as my ground,instead of having to pull a seperate ground wire.There are no building codes or inspections required.
 

friebel

Senior Member
Location
Pennsville, N.J.
Re: grounding conductor

To: joeboo94;russ;and derek,
I have replied to this same situation before, but I do feel compelled to speak up for safety.
For many years, we used the conduit for our grounding path back to the source. But what happens, if the conduit is broken,or at the couplings, corrosion sets in and you lose your good continuity of your grounding connection.
At our plant, we now have a grounding wire in the conduit or the cable if in a cable tray. Naturally the conduit is also grounded, but I feel much safer by having that ground in the conduit or cable. But you men are correct with NEC Section 250.118(2)(3)(4)(5)(6)(7)(8)(9)(10)(11)(12)(13)(14). You do need to run a separate grounding wire in a conduit.But if I was the AHJ their would be a grounding wire in the conduit.
 

dereckbc

Moderator
Staff member
Location
Plano, TX
Re: grounding conductor

Friebel I agree, I always specify an EGC. But from a code POV it is not required if 250.118 is complied with.
 
Status
Not open for further replies.
Top