Why do electrical plugs have to be designed with 3 legs for cumbersome?

A very small detail on the electrical plugs many people do not notice but in fact it has a very important role to ensure your safety when using electricity.

We are all too familiar with electric plugs from our homes to other public places. Simply because if there is no electricity, electronic devices are like a junk.

But the special thing is that the shape and number of pins of these plugs are very different. Did you have the answer to that difference?

This is the image of a normal 2-pin plug.

If you pay attention you will see most appliances such as electric ovens, computers, microwaves, refrigerators with metal covers are all designed with 3-pin plugs.

When using these devices we often have to interact with their external surfaces. So if the current is leaking out, it is very easy to get electrocuted.

Have you ever been numb or shocked when you touch the metal case of your device such as an iron, oven, microwave, electric stove . The reason is that you don't ground your device!

If a 3-pin plug is used, the third leg inside will help to remove the leaked power source .

Since there are 3 holes on the electrical outlet, there will be 2 hot and cold wire connection holes, the third larger one is connected to the ground wire of the building to ensure safety when the power is reached. Metal of electrical equipment.

The third leg on the plug as well as the third hole on the power outlet is generated to protect the user from electrical shock from the device.

Indoor wiring should also be neat.

In some cases, the internal wire is dropped and begins to conduct electricity on the metal surface. Users will be electrocuted immediately if they touch the metal part of such items. This is the time for the third pin to work and not to let the problem happen.

Many people believe that the third leg is not important and breaks away.

The result is.