A 4-inch square metallic box is used as a pull box for three 3-phase, 4-wire, 480Y/277V circuits. Each circuit consists of three 4 AWG THHN ungrounded conductors and one 6 AWG THHN grounded conductor. All conductors enter and exit through separate raceways on opposite sides of the box. What is the minimum length of the box, according to NEC 314.28(A)(2)?

The correct answer is located in the National Electrical Code Section XXX.XX(Y)(Z). Lorem ipsum dolor sit amet, consectetur adipiscing elit. Sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.

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