The electrical service distribution setup features a 4000 amp three-phase main with ground fault protection and a surge protective device. The grounding electrode system connects to a main ground bus referencing service ground detail 6/E5.13. Multiple grounding electrodes are tied to the system including an uffer ground, cold water pipe ground, building steel ground, and two three-quarter-inch by ten-foot ground rods.
COLD WATER UFFER BLDG STEEL (2) 3/4"x10' GRD. ROD. G 4000A 3P MAIN GFP SPD REFER TO SERVICE GROUND DETAIL 6/E5.13
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