3-WIRE OR 4-WIRE?: Dryer and cooking unit circuits (access required)

In past code cycles, changes were made to branch circuits that serve dryers and cooking units. Some older rules effected dryer and range branch circuits, including air conditioning condensing units, where type SE cable with aluminum conductors was the preferred wiring method. All that can present challenges to electricians and service technicians that are unaware of the background of these circuits and may require different applications and remedies required while working on these types of existing circuits today.

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3-WIRE OR 4-WIRE?: Dryer and cooking unit circuits

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