A secondary bonding busbar connects to the primary backbone via a two hundred fifty square millimeter conductor. Telecommunications backbone conductors and telecommunications equipment bonding conductors link telecommunication enclosures and cable tray systems to the ground busbar. Conductors feature sizing including sixty square millimeter and fourteen square millimeter typical sizing. Clamp hardware secures grounding connections to structural steel and vertical ground rods.
38 mm 14 mm TBC TBB SBB TEBC 14mm TYP. 14mm TYP. CABLE TRAY SHEATH GROUND EQUIPMENT GROUND CONDUIT GROUND RBB 250 mm TO PBB ACEG (POWER) A B D C G F E H N I L K M B J 5. 5. 5. 5. 5. 5. 60 mm TYP. 2 2 2 2 2 2
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