Why in the NEC, does it state 250.66 that size of electroce conductor should be 1/0 cu
for service conductors over 350-600kcmil. Yet 250.66(A) states the conductor that is sole connection to the grounding electrode shall not be required to be larger than 6awg cu.
Now if you say, run the 1/0 into the building from the service head and than in the service enclosure, where bonded cgange to 6awg, that contradicts 250.64(C) where it states grounding electrode should be continuous without splice unlesss compression type connectors are used.
