How many types of electrical outlets are there?
There are currently 15 types of domestic electrical outlet plugs in use worldwide, each of which has been assigned a letter by the US Department of Commerce International Trade Administration (ITA), starting with A and moving through the alphabet.
What is a typical wall outlet?
220 volts. The most common electrical outlet in any home is a 110 volt. Sometimes you may hear 110 volt plugs referred to as 120 volt.
What are special outlets?
Standard duplex style receptacles are the most common type of outlet found in your home. Specialty outlets typically offer enhanced functions of some kind beyond the standard duplex outlet, such as a child proof receptacle or a GFCI (Ground Fault Circuit Interrupter) outlet.