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Why are the third prong and ground wire necessary for electrical appliances?
Wiki User
∙ 14y ago
to ensure grounding safety.
Wiki User
∙ 14y ago
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Is the wide prong on an electrical plug connected to the black wire?
No, the wide prong is neutral it is the white wire. The narrow prong is hot it is the black wire. The round prong (in a 3 wire plug) is safety ground it is the green wire.
How do you adapt a 3 prong German plug to fit into a 3 prong US 230 dryer outlet?
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.
The MAIN purpose of the grounding pin in a three prong plug for appliance is to what?
It is to prevent electrical shocks.
Why do some appliances have 3 pronged plugs?
The third prong is a ground prong. Some appliances have 3 pronged plugs is so that if there is an electrical problem, it sends the electricity to the ground so you don't get electrocuted. All appliances should have 3 prongs, but no all outlets are made for that so they don't. Plus it uses more money to make them that way.
What does the circle prong on a 3 prong plug do?
Ground wire
Is the wide prong on an electrical plug connected to the black wire?
No, the wide prong is neutral it is the white wire. The narrow prong is hot it is the black wire. The round prong (in a 3 wire plug) is safety ground it is the green wire.
The what of an electrical plug connects the metal to the ground?
The rounded third prong goes to earth ground at the main panel where the neutral is also bonded to ground.
How do you adapt a 3 prong German plug to fit into a 3 prong US 230 dryer outlet?
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.
The MAIN purpose of the grounding pin in a three prong plug for appliance is to what?
It is to prevent electrical shocks.
Why do some appliances have 3 pronged plugs?
The third prong is a ground prong. Some appliances have 3 pronged plugs is so that if there is an electrical problem, it sends the electricity to the ground so you don't get electrocuted. All appliances should have 3 prongs, but no all outlets are made for that so they don't. Plus it uses more money to make them that way.
What does the circle prong on a 3 prong plug do?
Ground wire
When changing a 4-prong to a 3-prong cord does it matter that the 4-prong has a ground wire and the 3-prong doesn't?
Answer for USA, Canada and countries running a 60 Hz supply service.Yes it does matter. You should be upgrading your electrical system not downgrading it. Leave the four blade plug on the equipment and change the wall receptacle to a four blade receptacle. Ground the green terminal on the receptacle to the receptacles junction box. Tucked away in the back of the box you should see a ground screw, connect a jumper wire from this terminal to the new receptacle.If you don't see a ground wire in the junction box, the electrical code states that a ground wire should be taken from this junction box back to the electrical distribution panel and ground this wire to the ground bus in the panel or to the panel's metallic enclosure.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.
Is the small prong positive or negative?
POSITIVE and NEGATIVE are Direct Current (DC) terms In Alternating Current (AC) terms it is: HOT-LEG (brass colored screw) and NEUTRAL (silver colored screw) On polarized plugs 120volts, the larger prong is the neutral
Which prong on the back of a three prong headlight sealed beam is ground?
Is it a plastic prong sealed together
Do you need the ground prong for a computer cord?
The ground prong is connected to the computer chassis, including the outside of the power supply module. This is a safety feature to ensure that the metal case of the computer and power supply never becomes dangerously electrified in the event of a loose wire. Modifying the power cord not to have a ground prong would violate electrical codes intended to prevent accidental electrocution. That said, the ground prong is not essential for the normal operation of the computer, and the computer will still function without it. Proceed at your own risk.
Why when you test your electrical outlet does it say open ground?
When a 3 prong electrical outlet tester indicates an open ground, it is telling you that the d shaped slot on the outlet is: not connected to the ground conductor ( the bare or green jacketed wire that is supposed to provide an electrical connection to the earth) or that if it is connected to the designated ground wire the wire itself is not connected to the earth or perhaps there is no ground conductor available in the electrical device box where the outlet is located. Many areas of the country did not require that a ground conductor had to accompany the hot and neutral conductors in electrical devise boxes until somewhere around 1960 or so and some areas didn't adopt that requirement until several years after that. If there is no ground wire in your devise box you are out of luck and you should install an old style 2 prong outlet to prevent use of appliances that require a ground or you should run modern wiring to the location. If you are asking this question it means that you don't have a basic understanding of electrical wiring. It would be prudent to consult someone who has that knowledge to assess and guide you before you attempt to correct the situation.
How many holes are there on a standard 120 volt electrical outlet?
Usually 3. Why two different size prong? Two for the prongs and a third for the ground.
