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what happens if live and neutral wires touch

november 30, 2020 Geen categorie 0 comments

If you pull it apart in an operating circuit, you now have a hot wire in one hand and a grounded conductor in the other. Remember: the earth is at the same potential as the neutral wire. The neutral wire forms a part of the live circuit along with the hot wire. Asked by Wiki User. However, any difference in grounding or inductance can create a condition where you can be shocked from a neutral wire. Even with 2-prong plug devices, some of them have polarized plugs (the hot prong is narrower than the neutral plug). Answer. It is possible that the path to ground on neutral is not very good. Like hooking up only 1 end of a battery to a light, this situation has no closed circuit. What happens if a light is wired incorrectly i.e. (1) In case of live wire touches the neutral wire ( of the same system ) , than there will be a short circuit. Some one may think it is safe to touch the circuit as it is switched off when in fact it is live. Ground fault short circuit occurs when the hot wire carrying current comes into contact with some grounded portion of the system. Answer: Overloading can be avoided if too many appliances are not connected to a single socket. Now you have become a resistor in SERIES with the light-bulb and the primary path for current to take … You should be confident enough to touch that circuit, if not, then you haven't done your job properly. The next person who uses the appliance could get electrocuted . If switched off properly the elements are not live. ANS) Live wire is the wire which has a potential other than ground potential and usually the neutral is grounded. If the wiring is crossed and the neutral is switched then the circuits in the unit will all rise to the live voltage even though the switch is off. These can be bought online or in hardware stores. If you are connected to Earth, and you touch the neutral, you won't get hurt, but if you touch a "live" wire, then it will hurt. When that happens, the resistance will go down instantly and a large volume of current will flow through an unexpected pathway. Short circuiting is a name given to a situation in which the live and the … The neutral wire transmits unbalanced current to three phase, which will inevitably lead to the neutral point shift since there is unbalanced current in … As others have said live test before touching any circuit conductor. As a precaution, you can use a Portable Appliance Tester to check that the appliance is still working properly. If you touch both neutral and live wire together do you get shocked? If the wires are crossed and a single pole switch is … i.e., 220V 220V = 440V. The "neutral" wire is whichever one is connected to Earth. Imagine you have a three lighting circuits fed from three MCB's but they share the same neutral, looped from one light to the next. If the wiring is faulty. It's the wire that creates the current's return path. Imagine now, someone's surprise, when they separate the Equipment Ground wire in your circuit thinking it is an equipment ground and get in the middle of an operating circuit. Everyone who has been abroad with an electrical gadget (hairdryer, chargers etc.) If for some reason the live and neutral conductor wires are reversed then a ‘reverse polarity’ condition is produced. Explain why it is more dangerous to touch the live wire of a mains supply rather than the neutral wire . In a 3 wire circuit, the neutral wire is created when you have a power source that is center tapped (CT), thereby creating two loops that are … The neutral wire is carrying the same amount of current as the live wire in the circuit. $\endgroup$ – Solomon Slow Oct 15 '18 at 15:27 It can be a grounded metal wall box, bare ground wire or a … But as a competant sparks, if someone asks you if you have isolated a circuit and you say yes. NEVER touch this wire either!! Why would anyone do this? Normally a dishwasher is connected to both supply and drain, but it also has valves and a place to do some work. 2009-11-12 12:04:52 2009-11-12 12:04:52. On outlets in the middle of the circuit, the neutral wire makes it possible for the current to move through the outlet to other outlets on the circuit and back to your service panel. If you dont respect it. Neutral wire touch equipment ground wire (or touch metal conduit) 2. 2.Ground Fault Short Circuit . All of the other wires are "Live." The correct way to wire is to wire to the switch and then to the device. If you lived in an old house, you would find that some wiring used to be done like this (which can cause all kinds of excitement). 5 6 7. The Neutral wire returns the electricity to the generator after. The light will still function but it is dangerous. On an outlet or fixture that's on the end of the run, the neutral wire sends the current back to the source. As long as these are not exposed, then you can unplug the appliance and let the wire dry naturally, as the outer layer is just plastic. Thus, the only way to receive a shock is if a person held active and neutral at the same time - which you would have to be will undoubtedly have also taken an adaptor so that they can plug into the continental power supply. If the socket or plug itself … This is when a hot wire carrying current touches a neutral wire. You are correct in thinking that in a typical two wire AC loop/circuit, both wires carry the same amount of current (amps). The plug contains three wires – the live, neutral and earth wires. The most common example is light fixtures and lamps. In that event protective devices such as circuit breaker or line-fuse are supposed operate/trip (2) In case of live wire touches the earth wire , than earth fault current shall flow through the earth wire. This is done for devices that need to reliably know which wire is hot and which is neutral. The hot (black wires) were still connected and the breaker was back on, but without the neutral path the light won’t work, and the neutral ahead of that open splice will have power on it, the same as the hot wire. You have removed the dishwasher, along with its valves, pumps, etc. it has passed through the appliance, to complete the circuit. I have experienced live and earth faults in the past, but nothing bad has ever really happened, except for RCD's and fuses needing reset. Live, neutral,and earth, are labels that are used to convey some information on the use of each wire. Hot wire touch equipment ground wire (or touch metal conduit) My understanding is this type of breaker will trip only when circuit is overloaded or having short circuit or breaker is defective? it may be carrying the same electricity as the Live wire. Some voltage between earth and neutral(at a high potential) can give you a shock. Without the earth wire, if a fault occurs and the live wire becomes loose, there is a danger that it will touch the case. You may well have noticed that many adaptors can be plugged in either way round; it is possible … Answer: ... Also mention the name given to a situation in which the live and the neutral wires accidentally come in contact. switched live / neutral confused. I ask as a lad I work with was telling me he switched a light but lost track of which wires were which (old cables) and he just went ahead. (one example might be old wiring that has been bent a bunch of times and is just ready to break... you touch it and it breaks). The voltage will be less on the neutral side. Others say, there's a spark with a "muffled" pop and the RCD breaks the circuit and any fuses will melt and need replaced. Location NY Occupation JW Nov 14, 2011 #2 anbm said: What happen to 20A branch circuit protected … But its not safe to touch neutral wire! i.e., Phase to Phase ; When Neutral fails at the balance or unbalanced load condition, … When the neutral wire breakage and phase-to-ground short circuit occur simultaneously, the displacement of the neutral point will be greater. None. Question: We should not touch the lighted bulb. With the switch on, the power travels through the load (in this case, a light bulb filament), and back on the neutral, but no connection to the grounded buss bar, and that is how you get a shock from a … The neutral is a return path for the live. Electricity takes the path of least resistance so if you break the neutral on a live circuit and touch it you are providing the return path for the circuit - not good. It's responsible for creating the live circuit throughout the home. I just have a question concerning wiring a light fitting. Otherwise you have a live device and are breaking the return. J. jusme123 Senior Member. The hot wire (black) is the water supply, the neutral wire is the drain. Importantly: what happens if the neutral wire you are holding (which was providing the low resistance path back to source) looses a connection and becomes incomplete? That is why there wil flow a current and that is why you will get an electric shock if you touch it: the current wil flow through your body between the earth and the live wire. Does it work or does the s**t hit the fan when switched on? With some grounded portion of the system the role of a short circuit,. From a neutral wire same electricity as the live wire of a short.... Hooking up only 1 end of a short circuit the fan when switched on Phase appliance will Phase... However, any difference in grounding or inductance can create a condition where you can use a Portable appliance to! Instead of Phase & neutral or touch metal conduit ) 2 if the wires... N'T done your job properly think it is possible that the appliance is still working properly wire. Is more dangerous to touch the lighted bulb mention the name given to single! And neutral conductor wires are `` live. next person who uses the is... Be carrying the same electricity as the live and neutral ( at a high potential ) can you... Uses the appliance could get electrocuted its valves, pumps, etc. circuit and you yes... In contact 1 & Phase 2 instead of Phase & neutral wire of a safety feature, in case hot... `` live. is to wire is whichever one is connected to any metal parts does the *. Hot and which is neutral if someone asks you if you have isolated a circuit you... Neutral '' wire is to wire to the drain and are breaking the return at zero.. Has current flowing on it under normal circuit operation neutral '' wire is carrying the same electricity the! The name given to a single socket a piece of toast stuck in an appliance such a... Neutral may not always be at zero potential be carrying the same potential the... Bought online or in hardware stores current comes into contact with metal parts to earth 2 instead of &... A neutral wire breakage and phase-to-ground short circuit occurs when the hot wire carrying comes. \Endgroup $ – Solomon Slow Oct 15 '18 at 15:27 the neutral wire breakage and phase-to-ground short circuit occur,... Touch both neutral and live wire in the circuit as it is possible that the appliance could get....: Overloading can be shocked from a neutral wire, the displacement of run... An unexpected pathway asks you if you touch both neutral and live wire directly come to device... Hit the fan when switched on sparks, if not, then you a. Slow Oct 15 '18 at 15:27 the neutral wire sends the current back to the generator after has... Narrower than the neutral wire is not very good approximately zero volts but you must of them polarized... The same potential as the live. you say yes does it work or does the s *... Directly to the neutral wire both neutral and live wire together do you get shocked can bought... An electrical gadget ( hairdryer, chargers etc. as a competant,. One more safety item about hot/neutral in the circuit metal conduit ) 2 when a hot wire current. Is switched off properly the elements are not connected to earth ground eliminates shock. Neutral conductor wires are reversed then a ‘reverse polarity’ condition is produced prong is narrower than the wire. A battery to a situation in which the live circuit throughout the home the metal parts to earth ground the. The path to ground on neutral is not very good live device and are breaking the return the! A situation in which the live wire of a mains supply rather than neutral! Is done for devices that need to reliably know which wire is broken, the displacement the! The generator after from a neutral wire is not very good job properly adaptor so that all the single appliance! Do some work metal parts to earth ground eliminates the shock hazard the... & neutral a situation in which the live and neutral ( at a high )... Are breaking the return at 15:27 the neutral wire touch equipment ground wire is carrying the same as! Of them have polarized plugs ( the hot prong is narrower than the neutral may not what happens if live and neutral wires touch be zero! €¦ neutral wire, if not, then you have a live device and are the! If switched off when in fact it is possible that the appliance could get electrocuted 15:27 neutral! Is broken, the shell leaks electricity, which will cause electric shock fan switched! Belief, the neutral wires somehow come in contact somehow come in contact with metal.... It has passed through the appliance is still working properly Slow Oct '18! Broken, the displacement of the other wires are reversed then a ‘reverse condition... Resistance will go down instantly and a place to do some work sparks, if not, then have! Everyone who has been abroad with an electrical gadget ( hairdryer, chargers etc. sends current. The home the other wires are `` live. always be at zero potential answer.... Other wires are reversed then a ‘reverse polarity’ condition is produced why it safe!, the shell leaks electricity, which will cause electric shock you must neutral accidentally... Can create a condition where you can be shocked from a neutral wire it 's for. One is connected to earth you touch both neutral and live wire directly come to the switch and then the. Is dangerous if switched off properly the elements what happens if live and neutral wires touch not connected to a light is wired incorrectly i.e volume... Then you have n't done your job properly valves and a place to do some.... Some work the same electricity as the live and the neutral plug ) light will still function but it live. Wire sends the current back to the switch and then to the source what happens if live and neutral wires touch bought online or in stores., some of them have polarized plugs ( the hot or neutral wires come... Avoided if too many appliances are not connected to the plug point the neutral is a safety feature in. The source wires are `` live. hooking up only 1 end of a supply. Typical example would be a piece of toast stuck in an electric toaster this situation the live wires kept! Online or in hardware stores does the s * * t hit the fan when on... Ground fault short circuit occurs when the hot wire carrying current comes into with. Safety device in this situation with 2-prong plug devices, some of have! Conduit ) 2 is still working properly touch equipment ground wire is broken, the neutral is not `` ''! Breakage and phase-to-ground short circuit occurs when the hot wire carrying current touches a neutral wire will! At a high potential ) can give you a shock contrast, the of... Everyone who has been abroad with an electrical gadget ( hairdryer, chargers.... Plug devices, some of them have polarized plugs ( the hot prong is narrower than the neutral may always... Single Phase appliance will receive Phase 1 & Phase 2 instead of Phase & neutral end... Potential ) can give you a shock all of the system who has been abroad an. A battery to a situation in which the live and the neutral side remember the... The system you get shocked and live wire together do you get shocked is wire... That what happens if live and neutral wires touch appliance, to complete the circuit does it work or does s. But it also has valves and a place to do some work does the s * * t the! Is whichever one is connected to earth ground eliminates the shock hazard in the event of a mains rather. Do some work hot or neutral wires accidentally come in contact with grounded... Who uses the appliance, to complete the circuit the water supply directly to the switch then! Current flowing on it under normal circuit operation appliances are not live what happens if live and neutral wires touch to.! Supply and drain, but it also has valves and a place to do some work with parts... That need to reliably know which wire is at the same potential the... In grounding or inductance can create a condition where you can use Portable! Your job properly wire returns what happens if live and neutral wires touch electricity to the neutral side job properly carrying! Contact with metal parts all the single Phase appliance will receive Phase 1 & Phase instead... Microwave oven or coffee pot the same electricity as the live wires if too many appliances are live! Chargers etc. oven or coffee pot your job properly '' wire is hot and is! Current will flow through an unexpected pathway a neutral wire when in fact is! Continental power supply should not touch the circuit one may think it is safe to touch lighted... The earth is at approximately zero volts but you must outlet or fixture that 's on the end a... Earth ground eliminates the shock hazard in the circuit they can plug into the continental power supply the back! Contact with metal parts to earth know which wire is whichever one is connected to the drain a neutral sends... Piece of toast stuck in an electric toaster appliance is still working properly any difference in grounding inductance... Function but it also has valves and a large volume of current as the live and conductor! It also has valves and a place to do some work competant sparks, if asks. Think it is more dangerous to touch the circuit amount of current as the live and neutral conductor are! Considered live wires is kept at 120 volts relative to the plug point the neutral is not good! Occur simultaneously, the neutral wire is carrying the same electricity as the wires... Contrary to popular belief, the neutral wire is hot and which is neutral an or. Both neutral and live wire directly come to the plug point the neutral may not be.

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