The telecommunication main grounding bar and telecommunication grounding busbar on the second floor connect to the building steel and serving electrical panel using 3/0 and typical #6 conductors. The system bonds to the electrical service and extends to the main building ground. Grounding conductors route directly between projectors, electrical panels, and structural steel connections. Grounding electrodes and main grounding bars tie the telecommunication equipment and service entrance room to the structural steel framework.
CONNECTION TO BUILDING STEEL SERVING ELECTRICAL PANEL DIRECT DIRECT DIRECT SECOND FLOOR TGB FOR TELECOM ON SECOND FLOOR PROJECTORS SERVING ELECTRICAL PANEL BONDED TO ELECTRICAL SERVICE AND EXTENDED TO MAIN BUILDING GROUND CONNECTION TO BUILDING STEEL TELECOM MAIN GROUNDING BAR (TMGB) FOR TELECOM EQUIP.AND SERVICE ENTRANCE ROOM. 3/0 3/0 3/0 3/0 3/0 3/0 #6 (TYP) #6 TYP
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