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Is it safe to plug in three prong appliances into a three prong wall outlet that has no ground to it?

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2015-07-17 17:36:50
2015-07-17 17:36:50

The NEC allows connection of ungrounded, 3-prong outlets if there is a properly installed GFCI "upstream" of the ungrounded outlet.

As long as everything is working as designed, nothing will happen, but that third connector is a safety feature to protect you. It is connected to the frame of the appliance and if there is an internal short, leads the electricity back to ground. Without that connection, the operator may become the ground, i.e., crispy critter.

No, it is not safe. Ground is a safety line, without it the appliance is not safe. It may work, and you probably will not be harmed, but it is not safe.

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Yes, provided that you have a ground wire in the box and that the ground wire is properly connected in the electric panel.

Because the ground is missing in a three prong, the appliance uses a ground strap off the neutral if the ground wire is missing. New codes require a 4 prong outlet if the electrical is being installed new. Remember, if you use a 4 prong, the outlet must be a 4prong outlet, this means it must have 2-hots, 1-neutral, 1-ground. If the outlet does not have these then there is no use having a 4 prong plug on the appliance.

Yes, provided the outlet has a three element receptacle. The third prong is ground. If you use an adapter that connects three prongs to a two slot outlet there is a shock danger.

The best thing to do would be to replace the outlet with a four prong outlet. That way you get a separate equipment ground which is required by the newest code. Otherwise you could replace the cord on the dryer with a 3 prong cord, and connect the ground and neutral together in the dryer, but this is no longer recommended.

The length of the ground prong is simply a matter of design for a plug application. Not all ground connectors are longer, the design of the ground terminal is simply to avoid improper wiring of the device.

There are many three prong outlets. Need the amperage of the outlet to give the exact terminal letters.

It may be a 220 Dryer, and you will need a new outlet installed. There should be no extra wires when connecting the Power cord to the plug

There are two flat spades and a rounded prong on a three pronged electrical plug. The rounded prong is the ground.

You should install a four prong. The older ones were three prong and had no ground. An adaptor isn't made because it wouldn't fix the problem. You could make your own adaptor and cut the ground off with a pair of dykes, but don't.

To adapt a three prong range cord?æto a four prong outlet you need to remove the screws from the back plate to open the electric access panel. Then, pull out the copper grounding strip attached to the middle terminal. Next, remove the green ground screw from under the terminal block and attach it to the four prong outlet.?æ

German appliances don't have three pinned plugs. The standards are the "Schoko" plug, which is a two pin plug with contacts on the side as a ground connection and the "Euro plug which is a two pin plug without a ground connection. There are adapters available at most good electrical stores.

Assuming residential, 120VAC outlet: Black to brass colored screw or the screw marked "hot". White to silver screw or the screw marked "neutral". Ground to green screw or the screw marked "ground".

There is not enough information stated as to what you are trying to do.

A typical three prong residential outlet for 120 volts has a brass colored, a silver colored and a green screw. Connect black wire to brass, white wire to silver and bare ground wire to green.

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" The third prong is an earth ground. It is in place to eliminate a physical short at the appliance end from energizing metal surfaces on the appliance. In relation to the hot lead (the smaller slot) it will complete the circuit and is dangerous only in relation to the hot source slot. On an empty outlet, the slots should NOT HAVE ANYTHING in them.If you're careful, you can use a set of small pliers to remove the broken prong. Do not work in either of the two slots of the outlet. One of the slots is hot (powered).

Assuming this is one with a big plug with one L-shaped prong and the other set at an angle - NO! Don't even think about doing this!

The 3rd round plug is the ground connection.

The third prong is to protect from shock. If there is any way for you to come in contact with a conducting surface on the appliance you have the third prong.

=== === Tie the bare ground onto the ground screw in the back of the box then tie green wire from outlet to bare ground with a "wire nut", also known as a "marrette", or with an equivalent kind of secure electrical connector.=== === If you must go with a 3 prong outlet, ground the box. I would recommend a 4 prong outlet as it meets modern code and is safer.As always, if you are in doubt about what to do, the best advice anyone should give you is to call a licensed electrician to advise what work is needed.Before you do any work yourself,on electrical circuits, equipment or appliances,always use a test meter to ensure the circuit is, in fact, de-energized.IF YOU ARE NOT ALREADY SURE YOU CAN DO THIS JOBSAFELY AND COMPETENTLYREFER THIS WORK TO QUALIFIED PROFESSIONALS.

Neutral is vitalIf your generator doesn't have a neutral connection, no. (The generator would be rated for 240V only) If you don't have a neutral you will burn up half your 120V applainces. AnswerThe three prong should plug into the 4 prong and work. The fourth prong is to ground the body of the appliance. Three prong may only ground the motor. Instead of 2 power and 1 gound, the box is 2 power, 2 ground. Should still plug in.

If the outlet at the wall is a four-prong type, change the cord on the dryer to a four-prong (30-ampere rated)

No. Call an electrician. 50 dollars is cheap compared to having your dwelling burn up.

Explain what you mean by "3-way outlet". I've heard of 3-way switches, but not 3-way outlets. I would guess the person asking the question is asking how to wire a three-prong socket, as opposed to a four-prong socket...


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