A central grounding bus bar connects multiple building utility systems and electrical references using bare copper conductors and ground taps. The assembly ties into a cold water pipe, emergency generator neutral, power grounding riser, natural gas pipe, transformer secondary, and telecom grounding system. Additional connections extend downward to a site ground ring and a Ufer ground utilizing one number three-zero bare copper conductor unless noted otherwise.
G G TELECOM GROUNDING SYSTEM TRANSFORMER SECONDARY SIZE PER TRANSFORMER SCHEDULLE G G G G G G NATURAL GAS PIPE POWER GROUNDING RISER. REFER TO DRAWING E5.03 EMERGENCY GENERATOR NEUTRAL COLD WATER PIPE G G G GROUND RING. REFER TO DRAWING E2.B1P 1#3/0 BARE COPPER UON UFER GROUND. REFER TO DRAWING E2.B1P
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