Although two-wire cables, such as Type NM and Type AC, contain one black and one white insulated conductor, they are frequently used in residential wiring to supply 240-volt loads. Explain how this can be permitted.

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The Answer of Although two-wire cables, such as Type NM and Type AC, contain one black and one white insulated conductor, they are frequently used in residential wiring to supply 240-volt loads. Explain how this can be permitted.

Although Two-Wire Cables, Such as Type NM and Type AC