Re-identifying grounded and grounding conductors in a cable assembly

Status
Not open for further replies.
Sorry for a re-post, but my follow-up question got buried in the thread, so here it is..

Others here pointed me to 200.6 and 250.119 about whether it is OK to re-identify an ungrounded conductor as a neutral or an EGC when it's a part of a cable assembly.

So I'm reading the exceptions now and trying to understand what "Where the conditions .. ensure that only qualified persons" means -- industrial/commercial only?

"Where the conditions of maintenance and supervision ensure that only qualified persons service the installation, [grounded or EGC] conductors in multiconductor cables shall be permitted to be permanently identified at their terminations at the time of installation."
 

Gregg Harris

Senior Member
Location
Virginia
Occupation
Electrical,HVAC, Technical Trainer
Sorry for a re-post, but my follow-up question got buried in the thread, so here it is..

Others here pointed me to 200.6 and 250.119 about whether it is OK to re-identify an ungrounded conductor as a neutral or an EGC when it's a part of a cable assembly.

So I'm reading the exceptions now and trying to understand what "Where the conditions .. ensure that only qualified persons" means -- industrial/commercial only?

"Where the conditions of maintenance and supervision ensure that only qualified persons service the installation, [grounded or EGC] conductors in multiconductor cables shall be permitted to be permanently identified at their terminations at the time of installation."

Yes as written, the exception is referencing a scenario where the electrical system is and any activity with it is supervised e.g. manufacturing plant.

Does not apply to a commercial building such as an office building in the sense that it is commercial
 
Thank you.. So, not to beat this to death, but does this essentially mean that if I have a 12/4 MC on the truck, I could not use it as 12/2/2 on a residential or a commercial job by reidentifying one of the hots as another neutral?
 

Gregg Harris

Senior Member
Location
Virginia
Occupation
Electrical,HVAC, Technical Trainer
Thank you.. So, not to beat this to death, but does this essentially mean that if I have a 12/4 MC on the truck, I could not use it as 12/2/2 on a residential or a commercial job by reidentifying one of the hots as another neutral?

Correct there would be no supervision in either scenario. Any one could be used as a serves provider.
 
Status
Not open for further replies.
Top