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This type of question usually means you aren't ready to do this yourself. Study some electrical material and the National Electrical Code and work this answer out for yourself, or call a professional electrician. If I were to give you an answer, you might attempt to do something you shouldn't be doing, and that may cost someone a shock, a home fire, or their life.

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Q: What is involved in installing a double pole breaker for a 2 prong plug?
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Can you change a 2 prong plug with a three prong plug if you use a GFCI breaker?

NO - it is not safe to do that. A GFCI breaker is only a secondary safety device and your primary safety still depends on the earth wire in a 3-pin supply.


Does third prong protect the electrical device from damage?

No, the third prong is a grounding prong, and provides a path to earth ground, should there be a fault in the wiring. Typically the ground prong will be wired to the metal chassis of an appliance. So if something happens causing the chassis to become energized from the 'hot' wire, the extra current due to the short circuit should trip the circuit breaker and interrupt the current, rather than leaving it 'hot' and presenting a potential shock hazard.


What are the advantages of 3 pin plug?

The three prong plug incorporates a ground wire for safety. If there is a short circuit in an appliance that has a three prong plug, the current will travel back to the electrical panel and either blow the fuse to that circuit, or trip the circuit breaker to shut power down on that circuit.


What is a reusable circuit protector a circuit breaker - a fuse - a 10 gauge copper wire or a three prong outlet?

A circuit breaker is the only reusable circuit protector in that list. A fuse is also circuit protection, but it is not reusable. A length of wire can work like a fuse in some applications, such as feeding transformers on poles, but the wire would have to be small enough of a gauge to be able to burn out when overloaded. However, the wire would need replaced after an overload. A three prong outlet is for protecting humans, not circuits. The ground wire is for providing a low impedance fault current path back to the breaker to trip the faulted circuit's breaker (or fuse). The opening of the circuit will prevent a possible fire. However, a three prong outlet doesn't actually provide the protection of tripping the circuit.


What does the circle prong on a 3 prong plug do?

Ground wire

Related questions

Can you change a 2 prong plug with a three prong plug if you use a GFCI breaker?

NO - it is not safe to do that. A GFCI breaker is only a secondary safety device and your primary safety still depends on the earth wire in a 3-pin supply.


If your outlet is a 3 prong outlet can you hook up a 3 prong plug from your old stove to a new stove which has a 4 prong plug?

No you can not you will need to replace the plug with a 4 prong the same as the style of your oven and change your breaker to the correct Amp for your style of 4 prong plug


What is involved in running a 240V dryer line if you have a regular 120V line now?

You will have to install a double pole breaker in the fuse panel and then run new wire (10/3) to the location of the dryer and install the proper plug. You will need a 4 prong plug; the older 3 wire plugs no longer meet code for new work.


Can you safely install 3 prong plugs with old knob and tube wiring?

Install an AFCI breaker on the circuit with the outlets you replace and you will be fine.


What happens when your heaters three prong electric cord breaks and becomes a two prong cord?

It depend on which prong breaks off. If is its the brass blade the unit will not work. If it is the silver blade the unit will not work. If it is the ground prong, the unit will work but it will not trip the breaker if a short circuit fault occurs. The heater frame could become energized and if you happen to touch a grounded source when touching the heater frame, a nasty shock could result.


Does third prong protect the electrical device from damage?

No, the third prong is a grounding prong, and provides a path to earth ground, should there be a fault in the wiring. Typically the ground prong will be wired to the metal chassis of an appliance. So if something happens causing the chassis to become energized from the 'hot' wire, the extra current due to the short circuit should trip the circuit breaker and interrupt the current, rather than leaving it 'hot' and presenting a potential shock hazard.


What is info on a 120V through its double 20A breaker and 10-2 plus a separate bare ground inside plastic flex conduit to a three-prong 240V outlet box?

So what's your question? 110V would be hot to neutral/ground. 220V is hot-to-hot (phase to phase).


What are the advantages of 3 pin plug?

The three prong plug incorporates a ground wire for safety. If there is a short circuit in an appliance that has a three prong plug, the current will travel back to the electrical panel and either blow the fuse to that circuit, or trip the circuit breaker to shut power down on that circuit.


What is a reusable circuit protector a circuit breaker - a fuse - a 10 gauge copper wire or a three prong outlet?

A circuit breaker is the only reusable circuit protector in that list. A fuse is also circuit protection, but it is not reusable. A length of wire can work like a fuse in some applications, such as feeding transformers on poles, but the wire would have to be small enough of a gauge to be able to burn out when overloaded. However, the wire would need replaced after an overload. A three prong outlet is for protecting humans, not circuits. The ground wire is for providing a low impedance fault current path back to the breaker to trip the faulted circuit's breaker (or fuse). The opening of the circuit will prevent a possible fire. However, a three prong outlet doesn't actually provide the protection of tripping the circuit.


What is prong?

A prong is a clamper to clamp things.


Where is the Dry Prong Branch in Dry Prong located?

The address of the Dry Prong Branch is: 605 Russell Hataway Street, Dry Prong, 71423 0187


Which prong on the back of a three prong headlight sealed beam is ground?

Is it a plastic prong sealed together