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What is the meaning of ``integral ground bus``?

IGB utilizes two 1/16 inch thick ground bus bars to form the housing top and bottom. This provides an integral 50% continuous current capacity ground path. Equally important, the two ground bus bars completely encircle the phase conductors and provide a very effective high level ground path for ground faults. This grounding system is different from the old type on internal, separate ground bus bar system.

CTA-ID : 2014880
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