Please tell me if I understand this right. if I do a service change and can't get to a ufer then i use 2 ground rods for a typical 200amp service. 250-66 says the gec can be a #6 cu if it is the sole connection. maybe i dont get the meaning of the sole connection bit, but was told that it might have to be a #4 cu. if thats true, could someone give me a case where i would have to use the #4. here's 250-66 [Linked Image] thanks, C

250-66.(a) Connections to Made Electrodes. Where the grounding electrode conductor is connected to made electrodes.. that portion of the conductor that is the sole connection to the grounding electrode shall not be required to be larger than No. 6 copper..