Electrical · E-WB7C6

Cable Bus Cross Section Configuration

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A 600-volt, 3-phase 3-wire service entrance cable bus system comprises seven 1000 MCM aluminum phase conductors, an insulated grounded conductor, and a 500 MCM grounding conductor. The assembly is rated for 4600 amps at a 40 degree Celsius ambient temperature and 75 degree Celsius operating temperature. The enclosure side rails are constructed from 6063-T6 aluminum with 18-8 stainless steel hardware, resulting in an approximate weight of 37 pounds per foot. The quantity and configuration of feeders are designed and calculated by the cable bus manufacturer to achieve a maximum voltage drop of 2 percent and a short circuit rating of 100,000 AIC.

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