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5 Dollar Traffic School Practice Exam

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Telecommunications grounding busbars (TGB) should be connected to the main telecommunications main grounding busbar (TMGB) using a:
Correct Answer:
Telecommunications Bonding Backbone (TBB)
Explanation:
The Telecommunications Bonding Backbone (TBB) is a continuous copper conductor that interconnects TGBs to the TMGB.

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