What does a 120V plug look like?
115 and 120 volt receptacles or outlets are the normal outlets
that you plug everyday items into. It has the two slit lookings
things on either side and usually a third hole for the
Since I cannot include a mini pic may I suggest you take a look at any electrical wall outlet (ac recepticle) found in your home that you plug appliances or a lamps into. This rectangular recepticle is normally covered with a plastic plate for beauty and protection. It is made to receive a plug from another appliance in order to be powered by electric current. There are two verticle slots side by side above and a round hole slot just under if a ground is included in the recepticle. The verticle slot(shorter slot) to the right is considered HOT(Voltage applied) and the one to the left is considered COMMON (return). The Plug connects into the Recepticle and makes a good electrical connection between the house wiring and the appliance. Normal voltage supplied here in the USA is 60 cycle 110-120 volts AC(alternating current). Standard Plugs in this voltage range may be called 110, 115, or 120 vac. There are 240 plugs available for higher current and power needs such as Air Conditioners. They come in a variety of configerations so that you must match the plug to the recepticle. Some have slanted and some straight verticle prongs but all are more massive in construction.
I'm guessing you mean 120 volt, 20 amp receptacle. Look at the receptacle. If the grounding prong is down, the flat slot on the left is your neutral. In a 120v/15 amp receptacle, this slot will be parallel to the hot slot next to it. In a 120v/20 amp receptacle, this slot will be shaped like a sideways 'T'. The reason it is designed this way is so you are able to put either a…
No, the plug (cap) ends of cords are of different configurations for just that reason so that the voltages can not be interchanged. This is a safety factor. Using 220 volt appliance will not work as efficiently as it would on the proposed working voltage that the manufacturer's recommendation. If the load is a resistive load it is governed by Ohm's law. Current is directly proportional to the voltage and inversely proportional to the resistance…
How do you change over so you can plug a 120V RV plug into a 240V single-phase twist-lock receptacle?
There are no adptors to plug a 240v plug into a 120v receptacle. 240v requires two hot wores and a neutral and ground. 120v requires one hot wire, a neutral and a ground. If you have something that runs on 240/120 you need the cord and adaptor that came with the equipment as you willl need the wires to mate up accordingly.
If you buy a light in the US with wiring for 120V can you take it to a 240v country and just change the plug?
If the light you refer to is just a plain incandescent lamp, then changing the plug and changing the lamp to a 240 volt lamp should work OK If the light has a ballast (transformer-like winding) of any kind, the voltage rating of the ballast has to match the line coming in. A few ballasts have multiple taps - you may be able to change the internal tap from 120v to 240v you can not…
Can a 120V 20A non-locking plug be replaced with a locking-type plug of the same rating without affecting the performance of the appliance?
Someone has wired 240 volts into your 120 volt outlet. If you have 240 volts you need a specially configured outlet so that a standard 120 volt plug cannot be inserted. If you have this situation you would see 120 volts to ground and not neutral. Sometimes if you don't look carefully an outlet will look like the standard 120 volt variety but it isn't. One of the slots is horizontal and not vertical although…