In North America a receptacle with horizontal blades is rated for 15 amps 240 volts. These types of receptacles are usually dedicated circuits for specialized equipment. There is one that is used for air conditioners that is rated for up to 2 horsepower. The timer plugs into the 240 volt receptacle and the air conditioner plugs into the timer. There are also timers that can be hard wired into the circuit that will do the job. Do a search for Intermatic HB112 heavy duty 24-hour plug-in analog timer.
See related links below
A fork has prongs at the end of it. (Actually a fork has tines. A plug has prongs.)
For most standard two-prong plugs, there is no difference in which prong goes into which outlet. The prongs are typically the same size and shape, so it does not matter which way you plug it in. However, if the plug is polarized (one prong is wider than the other), make sure to plug it in the correct way according to the outlet.
The difference is safety. Any appliance or equipment that has metal parts that may be touched by the user will usually have 3 prongs because this provides for safety if those metal parts become energized. Exceptions would be "double insulated" items, such as many power tools, and items without exposed metal parts.
A plug with flat prongs can have a similar purpose to a round prong plug, as they both serve as a means to connect electrical devices to power sources. The flat prongs are commonly used in North America, while the round prongs are more typical in Europe and other regions. Both types of prongs aim to establish a secure electrical connection for safe and efficient power transmission.
=== === == == It is bigger than a 120 Volt plug and has either 3 prongs laid out in a Y shape or 4 prongs to include a Ground. === === === === === === === === === === == == It has three round prongs for Live, Neutral and Earth. In some countries, it has two round prongs plus a socket for an Earth prong that is part of the socket outlet. For some sample pictures see the Related Links shown below.=== === === === === === === === == == It has three rectangular prongs and a cartridge fuse built-in. The fuse can be changed to suit the appliance the plug is feeding, either 3 Amp, 5 Amp or 13 Amp, so it is the right size to protect the appliance.The Earth prong is larger and longer than the other two which are for the Live and Neutral connections.The matching socket outlet has a spring-loaded shutter, made of a non-conducting material, which covers the holes for the Live and Neutral prongs as soon as a plug is unplugged.When a plug is inserted into a socket outlet the longer Earth prong pushes the spring-loaded shutter out of the way to allow all the prongs to enter the socket outlet. For a sample picture see the Related Link shown below.
The reason might be a voltage or amperage mismatch between the two devices. Plugs and receptacles are matched sets depending on the voltage and the amperage of the devices. The configurations are done in this manor to prevent the wrong voltages being applied to wrong plug in equipment.
The ground prong (usually of a male plug) is a metal tab or rod connected to the conductor which is to be grounded.
Depends upon which prong is horizontal. Under NEMA standards (in the USA) it could either be 250v (6-20p) with both non-grounded terminals hot, or 125v (5-20p) with the horizontal being neutral. Obviously, WHICH terminal is horizontal determines the possible voltage, so you cannot accidentally plug a 125v device into a 250V socket.
No. A plug has a Hot side and is always live assuming your breaker/fuse is installed and working how it's supposed to. You can get electrocuted by touching the hot side and grounding out, either through the ground part of the plug or by being grounded by touching something that connects you to the earth.
I don't know about an extension cord, but they do sell plug adabters. You can pick them up at any hardware store or even Wal-Mart. They are ussaully grey or orange , and look like the plug end of the extension cord. One end will have the 2 prong, the other side will have the slots to plug in the three prong.
A single phase 220 volt power supply typically requires a plug with three prongs, including two hot prongs and one ground prong. The specific type of plug needed may vary depending on the country or region.
A 230 volt plug typically has three prongs - two rounded prongs and one grounding prong. The prongs are usually arranged in a triangular pattern. The plug may also have a higher amperage rating compared to standard plugs, and may be used for high-powered appliances or equipment.