Can you get electrocuted on an electrical wire if you're not touching the ground?
['No' is the correct answer to this question. But it's a technical answer. There are a lot of if's, and's or but's involved. How, for instance, how do you touch one wire without touching anything else? On what are you standing? On what are you suspended? See how this works? If one was foolish enough to climb a telephone pole that had high voltage wires atop it and reached out and touched the wire, a fatal shock would almost certainly result. But if one somehow got atop the pole and jumped off and grabbed hold of the wire, no electric shock would occur. Birds sitting on wires don't get electrocuted. Remember that 'No' is the technically correct answer, but there are a lot of "loose ends" that must be thought through when considering this question. There are safety considerations to be assessed, and fatal consequences await the careless individual.] Yes. Most wires have a two or three pathways (conductors) wrapped together. One of these is usually the ground wire. If you come into contact with the ground and the hot wire, you can be shocked. Another way to look at this question is to think of "ground" as standing on the ground. If a person touches a live wire with a single contact point, but their body is not touching the ground or a grounded surface or a grounded object, then that person will not be electrocuted. That's because a complete circuit can not be made until you are grounded, or until you touch another circuit wire at the same time. You will not know for sure unless you have a test instrument. A wise person would not guess. For example, think of when a bird sits on a live high voltage wire between poles. The bird does not get electrocuted because the bird is not grounded. That bird is not completing a circuit path and cannot be shocked. However, if the voltage is high enough, the voltage can go right through the air (think lightning). A link is provided to the Wikipedia article on electric shock. It's worth a skim.
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Answer . \nIt depends on the voltage and if it is a branch ciriut or a service. If it is under 30 v olts 6 inches will work. If it is 120 volt branch circiut it needs to be on a GFI, on a 20a breaker and either in a condiut or uf cable to be 12 in . If it is not on a gfi , and it is over 20 a th…en it must be 18 in. Regardless the wire must be in condiut or be of UF cable to make it water tight. (MORE)
They are only on one wire at a time, so there is no circuit forcurrent. As long as they don't become grounded to something, ortouch two wires at the same time, they are fine. Generally,high-voltage wires are widely-separated to prevent arcing; thatalso helps prevent animals from touching two wires a…t once. Answer The resistance of the wire between the bird's feet is so low thatthe current passing through the conductor cannot create sufficientvoltage drop to harm the bird. Should part of the bird come intocontact with another line conductor, or an earthed conductor, thenit will be killed.. There is no ground. The electricity cant easily flow through them. (MORE)
\nNo. There has to be a difference of voltage. \nYou are still alive I see. Are you asking for more volunteers?
The main electrical ground wire is sized to the service and is non insulted bare copper. Branch circuit grounds are green in conduit installations and bare copper again in house wiring cables.
For an electric current to pass through the bird's body, there mustbe a potential difference (voltage) across its legs. But its legsare connected to a very good conductor which means that the bird'slegs must be at the same potential -no potential difference, noshock!
electric shock is a physiological symptom caused by an electric current flowing though the body. the current causes heating and, at higher levels, burns, and eventually death. The bare wire has an electric potential of some substantial voltage above ground. This potential causes a current to flow th…rough your body to ground. if some other part of your body is not connected to ground, no current will flow. The current causes burning in your blood stream, your nervous system, and in you tissue. the current that flows through your body needs to be above about 10mA for you to perceive it as a shock. The voltage required to produce this current, by ohms law, depends upon the resistance between the point of contact and ground. (MORE)
The grounding pin of devices are connected to an independent ground wire. This wire is used for a direct path back to the distribution panel independent of the neutral. On a split phase secondary the neutral is used by other circuits on the system and indirectly makes its way back to the distributio…n panel. This indirect path introduces a resistance in the neutral which could interfere with an instantaneous trip of the over current device. Using a ground wire from the grounding pin on the three blade plug allows a direct low resistance path which takes the fault current back to the distribution panel which then causes an instantaneous breaker trip due to the high current in a short circuit. (MORE)
With electricity, in order to be electrocuted, you need to begrounded. Just like with a plug in and the extra prong at thebottom to keep it grounded. A bird can stand on a wire and not getelectrocuted because the wire does not actually touch the pole thatkeeps it in the air. Without being grounded, …they cannot beelectrocuted. But if the bird stretches out its wings and ittouches the pole connected to the ground, the bird would beelectrocuted. Another Answer . For an electric current to pass through the bird's body, there mustbe a potential difference (voltage) across its legs. But its legsare connected to a very good conductor which means that the bird'slegs must be at the same potential -no potential difference, noshock!. (MORE)
An electric fence exists around a garden which has eight wires seven of which are hot one which has no power and is not grounded Why on touching this wire does one receive a small shock?
There could be two explanations. One that there is an induction from the other wires depending on how close the proximity of this wire is to the others. The second and most likely is that there is a resistive load separating it from the other wires. Shut the fence off and check the junctions where t…he wires are spliced to one another. Look for corrosion or a white powdery dust where the wires are spliced. Clean it up and see if that corrects the condition. (MORE)
I order to do this all the wire need to be replace with three wire.
There are two conditions at play here. It depends on the moisture content of the wood and the potential of the voltage. If the wood is old and dry there is less chance of getting a shock over a newly milled length of wood. On the other hand if the voltage is is high enough you will get a flash over …even with wood that seems to be dry. When the power goes out and then a few seconds it comes back on again and stays on it is usually a tree limb that is the cause of the outage. What the power company is trying to doing is burn the branch off of the power line. If successful the power stays on. They are exploiting the fact that moist wood will conduct electricity. (MORE)
because the wires are covered in a insulator ( rubber) and that prevents the birds from getting electrocuted. some wires are not coved in insulators so if the birds are not touching two seprate wires then they will not get electrocuted
A man accidentally grabs a wire and feels a jolt of electricity He drops the wire before he is further electrocuted What causes this response?
The nerve endings in the skin send a signal to the brain which then orders the hand to drop the wire. Unfortunately, one of the things electricity does is make the muscles contract, in most cases they find themselves grasping the wire more tightly.
\n. \n. \nIt depends on what colors you have and what system you are working with. If you have black white and green, the green is ground, white is neutral, and black is hot.
the metal is a conducting metal and when this touches water it becomes the second conductor and so it sends an electrical surge to what ever is touching the water (you!).
When the squirrel is on a wire it is not grounded and not touching another wire so there is no path for electric current. As a rule, power lines are kept widely-separated so that animals can't touch two wires at the same time. Even so, on rare occasions, a squirrel will manage to get into trouble...… (MORE)
No. When you splice a ground it needs to be made by accepted means and the splice must be inspectable. Covering the splice with tape prevents inspection.
Answer for USA, Canada and countries running a 60 Hertz supply service. A good way to check the continuity of a ground wire in the electrical system is to measure the voltage from the "hot" wire to ground. This voltage should read the same as what you would read from "hot" to neutral. The reasoni…ng for this is because the neutral and the ground are bonded together at the distribution panel main breaker enclosure. If the neutral was not connected you would either not get a voltage reading at all or you would get a reading of a lower voltage that you would expect due to resistance in the circuit. (MORE)
If you have a brand new appliance (hair dryer, toaster, fridge, tv etc) and it comes with a plug with three prongs it has a ground. If it comes with two prongs it is not grounded. The only time an electical appliance should not have three prongs is if it is "double insulated" double insulated means …that the electrical components are on a chaisis that is electrically isolated from the outer case or chasis where the user can touch. This is done to greatly reduce the risk of electrical shock. If the device is not double insulated there must be a third prong or ground prong on the plug. The device will have a ground wire attached to the conducting parts of the device so that if there should be a failure such as a broken wire touching the parts that can be touched the electricity will have a path for electrical flow and again greatly reduce the risk of electrical shock to the user. If you plug in a three prong or grounded appliance and for some reason the breaker instantly trips there might be a dangerous electrical problem with the appliance which is causing electrical flow back through the ground conductor. this would also be slangly called a "shorted" circuit. It almost always causes the breaker or fuse to trip/blow. (MORE)
When a person touches a live wire and if he is standing on the ground he gets an electric shock why?
Current will go to ground whatever the ground may be regardless ofwhat is in the way. It is called a ground because that is exactlywhat it is, going to ground. Same reason lightening hits the earthor something that is connected to the earth. Current will seek thepath of least resistance. That's why …you don't stand under trees ornext to something tall and metal in a thunder storm. Taller thestructure, the easier it is to hit. The substation transformer has one of its terminals connected tothe earth (ground) as well as providing the neutral conductor.Because the earth is a conductor, this means that there are tworoutes for current to return from the load to the transformer-normally through the neutral conductor but, if there is anaccidental connection to earth, also through the earth. So, if youcome into contact with the line conductor, your body is providing aroute for current to flow back to the transformer through the earth-that's why you receive an electric shock. Another way of looking at it is to realise that the earth has apotential of 0 V and the line conductor has a potential of 120 V(North America) or 230 V (Europe) measured with respect to earth.So, if you come into contact with both a line conductor AND earth,your body will be subject to a voltage of 120 V or 240 V. (MORE)
No. But it defiantly short out and explode. Depending on how many volts the fence had.
Any voltage can be lethal if enough current is allow to flow. Human skin has a form of resistance to electric current flow however if the skin is moist or wet the resistance decrease to a point where IT WILL BREAKDOWN THE BARRIER AND ALLOW CURRENT FLOW
Yes, if you put Romex in conduit. Don't put anything that can deteriorate or be aewten by insects on the ground unprotected.
If water is a good conductor of electricity then if live electric wire comes in contact with sea or ocean then will all fishes or any person touching the water get electrocuted?
True, water is a conductor of electricity, and salt water is a bit better, but it also has something called resistance, that is it does resist current flow , so it would depend largely on how much current , how far apart the wires are , and how far away the electrocutee is.
because a magnet has positive charges and is also a allows electricity current ot flow through, by so doing we end up getting electricity
Not necessarily. You must be touching two conductors that are at different potentials to conduct electricity.
Grounding is an important part of all electrical wiring like your home. Without proper grounding you are asking for all sorts of strange problems and safety issues. The power company provides electricity to your main panel and a good ground is required. This is usually a metal rod in the ground near… your meter. This ground is bonded to the main electric panel. The neutral wire is in turn bonded to ground at the main panel. If you have a bad ground, neutral can float above ground causing shock hazards. I once had to chase down a shock problem in a shower. It turned out to be a case where the neutral and ground were not bonded at the main panel. What you shouldn't do is the hot side of power to ground. (MORE)
In the trade it is called a short circuit. It is a very very low resistance load that will create a very very high current flow. This is the very reason that circuits are, or should be, protected with the proper size breakers or fuses, to interrupt this fault current flow.
If this is homework, the answer is no - there is nowhere for the current to flow to, no current will flow and it is the flow of current through the body that does the damage. If you're contemplating trying it, the answer is maybe - in real life, you can get into a position where the gap between you… and the ground is small enough for the electric field to ionise the air in the gap. At this point, the ionised air acts as a current path between you and the ground. The resulting flash is likely to be accompanied by the smell of charred meat. (MORE)
The negative post on the battery is connected to the chassis (or frame) of the vehicle through a heavy wire. There may also be a heavy wire connected directly to the engine. In any case, the engine, frame and body are all electric ground points. All other electrical devices in the car use the fra…me or engine as the ground. Some are connected directly, for example the starter motor and alternator are bolted directly to the engine. Other components are connected to the frame or body with a wire. For example, the brake lights get power (+) through a wire from the brake light switch on the brake pedal, but they are grounded (-) through a short wire that runs to the body of the car. This makes it easier to wire the car since you don't have to run a return wire all the way to the battery. Sometimes a ground wire becomes corroded at the ground point, which can cause electrical devices to behave poorly. If a car is old and rusty, there is a good chance that some of the electrical devices may have poor grounds. For example, the tail lights may be dim. This is almost always caused by a poor connection on the ground side, rather than a poor connection on the hot (+) side. To troubleshoot this, you can use a voltmeter to check if there is a voltage drop between the device and a good grounding point. There should be no voltage between ground and ground, but if there is voltage between the ground side of the device, and a good ground on the chassis, this means that the grounding wire does not have a good connection. (MORE)
A short circuit is the term for hot touching ground. This can cause a breaker to trip which will then open the circuit.
For you to get electrocuted your body needs a return path for the voltage to get back to ground. Usually your shoes break this return path. Even though your whole body is up to the 240 volt potential you will not feel it. If the soles of your shoes were leather, or standing in water there might be a… chance of getting a jolt but if you are in bare feet you would get the full force of the 240 volts. The only thing governing the amperage through your body is the internal resistance of your body. It just takes milliamps to kill. Below is a chart of the amount of milliamps a body can take. Less than 1/2 milliamp no sensation 1/2 to 2 milliamps Threshold of perception 2 to 10 milliamps muscular contraction 5 to 25 milliamps painful shock (may not be able to let go) Over 25 milliamps Could be violent muscular contraction 50 to 100 milliamps Ventricular fibrillation over 100 paralysis of breathing. (MORE)
If it is in the US, Canada or other countries using similar wiring codes, only Green insulated copper wire should be used for the protective safety "Ground" wire. If the insulation on the other wires is colored then White is intended for the "Neutral" and Black for the "Hot" or "Live". . If it …is in a country in Europe or other places around the world using similar wiring codes, the Ground wire is colored Yellow and green, the Neutral wire is colored Blue, the "Hot" or "Live" wire is Brown. 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 JOB SAFELY AND COMPETENTLY REFER THIS WORK TO QUALIFIED PROFESSIONALS. (MORE)
You need to have to close the circuit to ground to get a shock. that is why birds sitting on an uninsulated power line don't fry. If there were a potential difference between the two wires you would provide a path for a current through your body. If the wires were at the same potential, no current w…ould flow. (MORE)
Yes. All sorts of material conduct electricity to varying degrees, including solids, liquids and gasses. Also, the voltage is critical. Extremely high voltage electricity can arc for tens to hundreds of meters, such as in a high power Tesla coil or naturally occurring electricity.
No, you can not because the plastic or rubber keeps the electrical charges from rubbing together.
First off you should not be touching any high voltage source whether you are grounded or not. A pole isn't typically dangerous, it is the wires on the pole. A path to ground is required for a current to flow. Technicians working on high voltage power line often touch the lines and ensure they are no…t grounded when doing so, by using special procedures. That is why birds can sit on bare power lines without getting shocked. (MORE)
The ground wire is always connected TO the box. In breaker panels there will be a grounding connector for multiple ground wires... that too is connected to the box.
Not if the wiring is correctly installed. The neutral should be at the same potential as the ground wire which is a zero or equal. To receive a shock your body needs to complete the circuit from a hot wire to ground or neutral. The above answer is not entirely correct. There are some instances whe…re electricians use the white wire to carry load (or current). For proper electrical code though, the white wire should be identified as hot by wrapping a turn or two of black tape around the wire indicating as such. The most common way a white wire would carry power is a 12/2 cable running to a switch that controls lights or receptacles or etc. Power goes to the switch through the black wire and returns through the white wire to the load. The white wire should be wrapped with electrical tape to indicate this. A safe way to check if a white wire is hot is to check with a volt meter from the white wire to ground. A zero or close to zero voltage indicates the white is at ground potential and would not be hot. (MORE)
Yes, its a good idea to ground sensitive equipment at the surge protector. You can do this with an adapter that isolates house ground from the ground wire you are going to run from a water pipe im guessing, if you are still not sure you want to combine them. Shorting the path and and using heavy cop…per wire to ground from any protection devise improves its ability to protect your equipment and improves its reaction time to a spike. It is also a must to add an additional ground to both your washing machine and dryer to the chassis and to all your 220 devises that utilize high current capable wiring, this will insure that your breaker will trip if there is a short in the devise otherwise there is a possibility of a fatal shock. Run individual ground wires for each devise also. It is a good idea to have a professional to install all electrical connections. (MORE)
It will produce a dead short and blow a fuse if the circuit is fuse protected, if not it will burn the wire up until the wire(s) burns in half.
No, a thin layer of water builds up between the tires and the road, so the car looses contact, a tyre has threads built into it to push and drain water from beneath the tyre, thats why it is usually when tyres are worn bare that aquaplaning occurs.
Yes, if possible, connect the grounds to the ground bus bar and theneutrals to the other side on the neutral bus bar. This is just incase you ever install a sub panel. It is not a violation of the NECcode to connect them to the same bus bar but IMO it isunprofessional and can cause problems later on…. (MORE)
No, the covering on the wire is insulation. This insulation is used to isolate the wire from any grounding medium, this includes a person. It is not a good idea to go around touching wires as there may be a nick in the insulation. If the nick goes all the way through to the conductor, and you touch …that specific spot and you are grounded you will get a shock as you become part of the conductor. (MORE)
Can you be electrocuted by touching only the ground wire from a house with 220v attached to a metal clothes line pole at the metal pole?
You need to get an electrician to put in a proper grounding rod. You don't want to become the path to ground and it sounds like that may be possible if unlikely with you current grounding situation. The problem may manifest itself else where in your house, such as a shower for example. I saw this ve…ry problem with a faulty ground in Florida. (MORE)
Yes, it is the magnetic field that is generated when conductors are in a short circuit high current condition. This same action can be seen on a welders cables. When the welders cables are wound up and are hanging in a big loop from a single support there is a lot of conductor lying in parallel with… each other. When the welder strikes an arc you can visually see the cables try and move toward and away from each other. The high DC current created by the arc creates a magnetic field around the individual wires. Depending on the direction of the current flow some wires attract each other and some oppose each other. (MORE)
Oh an electrician birdy question! I love this one! As an electrician and bird lover I can tell you, but not because of the bird lover part. Electricity is the exchange of tiny particles called electrons. Everything in your house that uses electricity is connected to the ground so that the electric…ity can travel back to the power station. It is also called a complete circuit. A bird on an electrical wire, even 31,800 volts simply has no path back to the power station (ground). If I grab a wire which is live (has potential, or is turned on) and I am on a fiberglass ladder I do not get zapped. This is for the same reason, I have no path to ground. I only get zapped if I touch something grounded to complete the circuit. The bird is: Bird A______________________Z and not: A_______Bird____________Z I love that question! Thanks for asking! (MORE)
If the live wire should touch the casing of an appliance, thecasing would become live and give electric shocks. The ground wireprevents this because it provides a low resistance route to earthand any current flows away safely. Because of the low resistance, alarge current flows and blows the fuse, t…hus disconnecting theappliance. One safety feature is that the ground wires connect the outer casesof all items of electrical equipment together, so that (forexample) it is not possible to get an electric shock by touchingthe cooker and the fridge at the same time. This type of groundingis also used in aircraft even though there is no connection to theground. The other feature is that the ground wires are grounded to an earthrod in the ground, to avoid a buildup of static electric charge.They are also connected to water and gas supply pipes. (MORE)
If You're Touching A Counter With My Left Hand And You Get Shocked With Your Right Hand Will The Electricity Travel To Your Left Hand If It's The Quickest Route To The Ground?
Most of the electric current will pass through the path through thebody which offers the least resistance, NOT the 'quickest' path, asspeed doesn't come into it.
That would depend on the surface: . wood surface - no . plastic surface - no . ungrounded metal surface - no . grounded metal surface - yes . etc.