Mustang, you are correct about the 2 ground conductors. The IG ground connects to the ground terminal on the rect. The egc connects to the box. Like kentvw said there is no continuity between yoke/strap and rect ground terminal. Do not insulate the yoke from your metal box. A true IG rect already isolates the 2 grounds.
Re: IG and EG in same conduit#89670 10/12/0406:54 PM10/12/0406:54 PM
The IG circuit originates from a IG terminal that is bonded to the neutral at the service Main OCPD.
Great, I only asked because it sounded like you where unfamiliar with IGs and many people think think an IG must run to a separate ground rod that is isolated from the buildings grounding electrode system.
Do not be offended, being unfamiliar with something has nothing to do with your abilities.
I am very unfamiliar with hazardous locations, but IGs I work with all the time.
Bob Badger Construction & Maintenance Electrician Massachusetts
Re: IG and EG in same conduit#89672 10/12/0407:14 PM10/12/0407:14 PM
Hi, No offense taken. I have been in the trade 28 years and most of my experience is heavy industrial working around gas turbines and fossil fuel plants.
I am pretty good across the board but I do know everything. I do not mind asking a question if I do not know or if I am not sure.
I used to do a lot of commercial work but it has been a long time.
The electrical trade is about the broadest field there is.
I appreciate the comments and the way they are worded...i have been on jobs where if you did not know how to bend a 4 point saddle or a rolling offset you were considered a romex ranger...i can hold my own in both arenas pretty well. I have run a lot of pipe and i have jerked a lot of romex too!
The guy who claims to know it all is the guy to watch out for!
One thing for sure...you can always count on the expertise, knowledge and experience that is demonstrated on a daily basis on this forum..
I use the forum all the time to verify drawings, field conditions, or when i am planning a job or if i am just stumped..
You never know what is going to come up!
Electricity has no respect for ignorance!
Re: IG and EG in same conduit#89673 10/12/0409:42 PM10/12/0409:42 PM