Non Polarized Outlet
A plug with two prongs of the exact same shape and size is considered non polarized.
Non polarized outlet. Amazon s choice for non polarized plug adapter. Non polarized wall outlets were common in older homes. Polarization is a way of making sure a switched light or appliance isn t energized and can t shock you when the switch is off. In time plugs can become damaged and frayed requiring replacement.
A polarized plug will work with most connections unless you are connecting it to a non polarized outlet. My solution was to buy a non polarized plug and wire it to the polarized modular cable. They were always used on ac or alternating current wall outlets. You cannot tell which prong is the hot side and which is the neutral side because the metal pins are the same.
When there are three prongs these are known as grounded plugs and they are designed to fit into wall outlets so the round bottom prong fits into the ground slot on the outlet thereby connecting the appliance s wiring to the house s grounding. Ac adapter with integrated plug pins matching an unpolarized nema 1 15p newer nema 1 15 plugs with wider faces middle have a safety advantage. When older devices with a non polarized two prong design are inserted into a non polarized outlet the polarity directional flow of the current would be reversed. You can only use a polarized plug with a polarized outlet.
A nonpolarized power cord has prongs of the same size. A polarized plug has two prongs of different widths. In this case you have a serious problem as you cannot connect the plug since it will not have the additional hole that you need to power it and you may lack important connections such as the earth wire. Failure to replace polarized plugs that are damaged can result in fire hazard and electrical short circuit.
Japan philippines travel adapter plug bu ceptics usa 3 pin polarized to 2 prong unpolarized type a 3 pack dual inputs ultra compact perfect for cell phones tablet camera chargers ct 6 4 5 out of 5 stars 412. At the end of any appliance electrical cord there is a plug with two or three prongs blades designed to fit into standard wall outlet receptacles. Reversed polarity leaves the circuit open and could potentially lead to electrical arcing or shocks. The hot side of the outlet measured 180v with respect to ground on the amp chassis.
Thankfully most receptacles in us homes today are polarized. A polarized power cord has prongs of different sizes. The property of polarization aligns the hot wire with the on off switch of. A non polarized 1 15p plug has 2 identical blades.
One blade is wider on a polarized 1 15p plug. When looking at a polarized household plug shown in detail on our nema chart nema 1 15p the smaller of the two prongs is a hot wire and the other is neutral.