Why is one of the 3 pin of a 3 pin plug is longest and thickest?

Why is one of the 3 pin of a 3 pin plug is longest and thickest?

The earth pin is long so that the earth connection is made first. This ensures the safety of the user because if the appliance is defective, the fuse will blow off. The earth pin is made thicker so that even by mistake it cannot be inserted into the hole for the live or neutral connection of the socket.

Why the third pin of a three pin plug should not be removed?

At worst, the misdirected current could give a nasty and potentially lethal shock. The third prong grounds the device to prevent this issue. If there’s something wrong with your appliance, the grounding prong creates a new, low-resistance grounding path down to the main electrical panel.

What is use of third pin in your household appliances?

(i) A three pin plug is used to supply electrcity to any electrical appliance whose body is earthed. The third big pin of the plug helps us to do this earthing. The user of the electrical appliance is then protected against accidental electrical shocks.

What are the 3 pins in a plug made from and why?

A plug consists of the case or cover, three pins, a fuse and a cable grip. The case of a plug is the plastic or rubber parts that surround it. Plastic or rubber materials are used because they are good electrical insulators. The pins inside the plug are made from brass because brass is a good conductor of electricity.

What is the purpose of third big pin in 3 pin power top?

The third pin is used only as a safety device.

What is the use of third pin in plug?

When you plug in a three-pronged plug, that third prong is providing an alternate pathway for electricity in the event of a fault. If you cut the third prong off of a plug, you defeat the safety feature. Also, adapters were designed to use the cover screw to complete a ground circuit on some older plug designs.

What is the purpose of third big pin in 3-pin power top?

Why do you need 3 wires for electricity?

A three-wire three-phase circuit is usually more economical than an equivalent two-wire single-phase circuit at the same line to ground voltage because it uses less conductor material to transmit a given amount of electrical power.

What is the purpose of 3 pin plug?

The 3-pin plugs are designed so that electricity can be supplied to electrical appliances safely. Each wire has its own specified color, as shown above and each pin must be correctly connected to the three wires in the electrical cable.

What is a 3 pin plug used for?

3 pin plugs are designed so that mains electricity can be supplied to electrical appliances safely. A 3 pin plug consists of three pins (hence the name). Each pin must be correctly connected to the three wires in the electrical cable.

Why do UK plugs have 3 pins?

Prong Design: Like standard U.S. grounded plugs, the U.K. wall plug has three prongs. The U.K. plug is designed so that the grounding prong is slightly longer than the prongs responsible for transferring current.

Why are 3 pin plugs important for electrical safety?

A 3-pin plug consists of three pins (hence the name). It is important to know how to wire a 3-pin plug correctly. The 3-pin plugs are designed so that electricity can be supplied to electrical appliances safely. Each wire has its own specified color, as shown above and each pin must be correctly connected to the three wires in the electrical cable.

Why do some appliances have a 3 pin electrical connector?

Such plugs have three different pins for ground, neutral and hot. The neutral plug and earth plug work as the safety measure and the hot pin works as the key origin of electricity. Due to this, when current starts overflowing, the 3 pin controls it and it does not cause any damage to your electrical appliance.

Why is a 3 pin plug used in iron box?

You might have noticed 3 pin plugs are mostly used in appliances like iron box, grinders, mixers, etc. Explicitly speaking, appliances with metal body will surely have the third pin which provides earthing prevents people from electrocuted.

Which is the first to disconnect from a 3 pin plug?

When we insert a 3-pin plugin into a 3-pin socket, the earth pin is the first to make a contact with the socket as compared to the Live and Neutral Pins. The earth pin is the last to disconnect from the socket when removing the plug from the socket. i.e. Line and Neutral disconnect first and then the earth pin.