What does the blueprint symbol for a 220 outlet indicate?

The blueprint symbol for a 220 outlet specifically designates a circuit that provides a higher voltage, typically used for appliances that require more power than standard 110 outlets can supply. This type of outlet is essential for running heavy-duty appliances, such as electric ranges, dryers, and some HVAC systems, which often require the increased voltage to function effectively and efficiently. Understanding blueprint symbols is crucial in interior design as it aids in planning electrical layouts that comply with safety standards and ensure that appliances are installed correctly for optimal operation. The other options refer to different symbols associated with various functions or types of electrical outlets and fixtures, thus clarifying the unique purpose of the 220 outlet symbol.