I may have to do a 400A service with a CT can feeding two 200A panels located next to each other. Each panel will have its own Main bonding jumper. Do I have to run two # 4 wires (one from each panel) to Grounding Electrode or I can use one # 1 looped through each panel instead? Do I run two
# 6 wires to the two rods or I can run just one # 4 looped through both panels? I have done many 200A service but this is the first 400A. I appreciate your input. Thank you.
