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The longer pin on a standard household plug is the GROUND, sometimes called a "U" ground because with some manufacturers, the pin is bent/rolled like a "U". However, there are many other type plugs which have a GROUND PIN but are not shaped like a "U". It is slightly longer than the other pins because it must make contact first (before the power pins) as a safety measure. If there was a fault/defect in the device being plugged in, grounding the device before it receives power will make sure the circuit blows the fuse and does not energize the metal frame of the device which could lead to a shock.
Wiki User
∙ 15y ago
Wiki User
∙ 7y agoThe longest pin on a plug (cap) is the ground pin. It is the first pin to make contact when pushing the plug into the receptacle and the last pin to disconnect when un-plugging from the receptacle.
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Why does the size of the plug in 2 pin and three pin socket varies?
Top pin's job:[1] Allows current into a device.[2] Allows current back out of a device.Bottom pin's job:[1] Earths the power in case of current spike.The thickness of the pins have two reasons.[1] It costs more money to use more metal in plugs[2] the ones missing the bottom pin do not earth power so a spike can blow the device using it.Earthing is the act of sending electricity into the earth. To ground something.
What is the rating of the fuse which is most commonly fitted to three pin plugs?
Answer for UK, Europe and countries running a 50 Hz supply service.The easiest way to check is to remove the plug from the wall socket, and open it. The rating will be written on the fuse and is given in Amps. Sometimes devices come with a molded plug top (no screws, can't be opened), however there will be a slot on the underside of the plug which allows you to take the fuse out.The Amp rating of a fuse in a plug is an electrical safety standard.When a fuse burns out (blows) it is usually due to an electrical fault in the device, which should be fixed before replacing the fuse.You should never replace a blown fuse with a fuse of a different Amp rating, either higher or lower.In the UK and Ireland, plug tops should always come with a fuse with a rating that suits the appliance it is attached to.Generally these ratings will be either3 amps - for small things like lamps5 amps - Also for small things.10amps - no example13amps for bigger things like the Vacuum cleaner.13 amps is the highest rating a 3 pin plug should have.As always, if in doubt, contact a registered electrician.
What are the top 3 flowers that can last the longest without water?
Daises,sun flowers and roses i think
What if the top pin on three pin plug broken in electric socket. Is it dangerous?
Not in itself. Do not plug another three prong plug in the outlet until the broken prong (round-ish) is removed from the outlet. The third prong (round-ish) on a three prong plug is the ground. It does not carry any power.Correction"It's the power return"
Does the earth have a top and a bottom?
The Earth doesn't have a top or a bottom because it spins on its axis always changing the top or the bottom
What pin on a power plug is the earth pin?
The third pin usually on the bottom is the pin that goes to the ground/earth.See Sources and Links below.AnswerIt really depends on what type you plug you are using. From your use of the word. 'earth' (rather than 'ground'), you may be referring to the plugs used in the UK, Ireland, and places like Malta, Cyprus, and the Gulf States? If so, then the earth pin is the longest of the three, and located at the top of the plug. Some European plugs don't use an earth pin at all -in Germany, for example, they use a pair of contacts located in the moulded recesses located on each side of the plug.
How do you connect the 3 pin plug?
One pin for phase other pin for neutral and third one is for earth/ground wire. In India the right pin is for phase, left pin is for neutral and pin on top side is for ground wire. This third top side pin is slightly bigger and longer compared to phase and neutral pins.
What is the function of 3 pin plug?
The 3 pin plug is used to connect (and eventually disconnect) various devices requiring an AC power supply to and from the main power supply.As the name suggests, the 3 pin plug consists of three pins :-Longer one, usually on the top for most standard plugs : is the earth [ E ]Left pin (Usually) : is the Line connection [ L ]Right pin (Usually) : is neutral [ N ]Next to the pins, on the plug, the three pins and their respective function is given by E, L and N.
What is the top of the pin called?
The top of the pin is called the head of the pin.
Why the earth pin in a three pin plug positioned at the top?
This isn't necessarily the case. Although the earth pin of a British plug is positioned at the top, it's the opposite case in North America, where the 'ground' pin is located at the bottom! I've heard it argued that the reason that North American plugs have their pin at the bottom is because, if the cable is dragged out of its socket due to the weight of the cable (remember cables extend horizontally from US-style plugs), then the ground pin will be the last to disconnect -but whether this is true or not, I cannot say.
How do you get the plug out of a browning 2000 shotgun?
Remove the gas system. Drift out the black cross pin out of the magazine tube. The pin is directly below the gas system through a polymer plug. The polymer plug should come out of the top of the magazine tube when you remove that pin, so be VERY careful when removing the pin. Now remove the magazine spring. On the follower end of the spring should be the plug you are wanting to remove. Remove it from the spring. And put the spring and polymer plug back in. The dished end of the polymer plug goes toward the end of the magazine tube.
How do you find the phase pin in 3 pin plug?
It depends upon what type of plug that you are talking about. There are many configurations of plugs. The one that you are probably referring to is a 2 pole 3 wire grounding plug. To correctly identify the "phase" pin a voltage and amperage must be stated. It will fall under one of three designations L5, L6 or L7. By Convenstion the right side pin is supposed to be phase or hot pin. Left side pin is neutral. Top side pin, which is slightly larger and bit longer is for grounding. This convention is applicable in India.
Which pin on the diagnostic plug for ef Ford Falcon is for reseting the airbags?
if your clearing airbag codes its the top row fourth on left
Where is the egr valve on a 1995 riviera?
Right on top of engine near throttle body, driver side. Black cylinder looking device with a 5 pin plug in.
How can you get a PIN?
you walk on top of it
Where is Renault megane 1999 diagnostic port?
if it is the coupe model then look to the right of the steering wheel where the fuse box take the cover off and at the top Left hand corner on the fuse box there is a 16 pin plug that is the plug your looking for
Where is RPM sensor on a 1997 Nissan Altima GXE located?
There is a grey 4 pin plug on top of the motor, close to the firewall, it controls the RPM, Speedometer, and Temperature gauges. Plug may become loose, causing no RPM needle movement.
