joeyww12000
Senior Member
- Location
- Chatsworth GA
Ok code gurus, help me out. I was getting confused on GEC size requirements but maybe I got it now. If Im getting this now, let me know. From my service I bond neutral and ground and take a GEC per table 250.66 based on size of service conductors to ground rod. All other GEC's are supplemental grounds with a NEC requirement of #6 cu, #4 al for 250.66 (a) and #4 for 250.66 (b). Inside the switchgear the neutral bus is already connected to groundbar which in turn is connected to switchgear casing, GEC ran to groundrod per 250.66. If this were not the case the bonding jumper between Neutral and case ground would have to be based on table 250.66 also? If you havent figured it out guys I use this site for study purposes. I study every morning before work. Thats why I ask so many questions and Im sorry if you get tired of answering. I really appreciate it though.