BASIC NEC CODE RULES AND DESIGN PRACTICE

600 3-3/0 Parallel 480. 700 3-4/0 Parallel 560. 800 3-300 MCM Parallel 640 ... two 200 amp panels should have a 400 amp service to allow for added circuits in the future. ... The neutral in Panel A and Panel B are grounded to the panel which is grounded by a ground wire to the service entrance grounding point in the wire gutter. ................
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