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because it is 2 hot leads of 277vac =480v. not 2 hot leads of 110-120vac=220vac
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The higher the voltage becomes the higher the current becomes through a set resistance.
A normal dry body's resistance from thumb to thumb is about 2.6 meg ohms.
This is the body's outside resistance from point to point and not the body's internal resistance. Once the shock has started the skin becomes burned and this starts to lower the outside body resistance to a lower value. The longer the burning continues the lower the outside resistance becomes until it reaches an inside body resistance.
The body's internal resistance is in the neighbourhood of 1000 ohms.
Using the same formula with the internal resistance and see the drastic current increase that will kill you.
The formula for amperage is Amps = Voltage / Resistance.
Using a secondary voltage of 220 the formula is, Amps = 220/2600000 = .0000846 amps or .0846 milliamps.
Using a secondary voltage of 220, the formula is , Amps = 220/1000 = .22 amps or 220 milliamps
Using a secondary voltage of 480 the formula is, Amps = 480/2600000 = .0001846 amps or .1846 milliamps.
Using a secondary voltage of 480, the formula is , Amps = 480/1000 = .48 amps or 480 milliamps
As you can see, as the voltage become higher so does the current that can flow through your body if you short across an electric potential.
The following list is the tolerances that the body can stand.
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.
See sources and related links below.
Wiki User
∙ 12y ago
Wiki User
∙ 13y agoDirect current energy for domestic use is obtained from batteries and are low voltage. Quad A, triple A, Double A, C and D batteries are commonly used in the home and are very low voltage. Older vehicles, motorcycles, mowers and ATVs use 6 volt batteries. Modern cars and trucks use 12 volt batteries. Heavy duty equipment use 24 volt batteries. Can you see the difference between 220 volts, used for dryers and ovens, and 24 volts? It's not the alternating or direct current that is more dangerous.
Wiki User
∙ 12y agoIt's not. Direct current is more dangerous because it stresses the body more, the body can easier withstand an alternating current. Direct current may fx cause the heart to cook or even explode while alternating current typically won't change it's temperature or size much.
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Which is better for transmission alternating current and direct current?
Alternating current is better than direct current for transmission.
What is meant by alternative current?
Alternating current is more efficinent. It is wireless and more efficient than direct current. And it is safer. Plus Tesla is better than Edison
Why ac current is more dangerous than dc?
no actually dc current is more dangerous than ac because dc is a direct current and has no current zero condition ,which is very dangerous and do not leave us if we get shock while ac current leave us when we get shock
Why is there only one circuit in the series connection?
Current flow direction is not dependent on whether or not it's in a series or parallel circuit. Current directional flow is solely determined by the power source. For businesses and residential power, utilities use various forms of alternating current. For example, the United States utilizes alternating current that changes directional flow 60 times per second. Some parts of Europe use alternating current that changes direction 50 times per second. Many electronic devices use a direct current source in which the current flow is only in one direction, from negative to positive or a converter that changes the alternating current source power to direct current.
If your universal alternating current direct current adapter has more amperage than you need will that mess up your electronic product?
No, your universal alternating current direct current adapter will not mess up your electronic product. The rating that you find on the adapter is the maximum amount that you can draw from the device without damaging it. It is not like there is a surplus of current waiting to be used. The amount of current draw that it can produce is governed by the load demand. What you don't want to do is connect a device to the adapter that has a load higher that the rating of the adapter. Usually you can find the rating on the adapter rated in milli amps (ma) along with the output voltage. Also the load device will have what the amp draw is, also in milli amps.
Which is better for transmission alternating current and direct current?
Alternating current is better than direct current for transmission.
Is direct current more harmful than alternating current?
yes it is very harmful
Why direct current cannot be used for domestic use?
Alternating current can be sent via cables much much farther than direct current.
What is one way that alternative current is more useful than direct current?
alternating current is easier to transfer long distances
What does A.C.E MEAN?
Depending on how it's used, it can mean air conditioning, or it can mean alternating current (as electrically powered) as opposed to battery powered (DC, which is direct current). Or Animal Crossing
Advantages of Ac to DC converter?
some things requre a dc (direct current) rather than an ac (alternating current)
What is meant by alternative current?
Alternating current is more efficinent. It is wireless and more efficient than direct current. And it is safer. Plus Tesla is better than Edison
Is 1 volt more then 1 DC volt?
No, it is the same. DC stands for direct current rather than AC, which is alternating current.
Which type of current does lightning has?
unfortunatley i cant tell for sure what you mean because of the lack of grammer (not insalting you) but if your asking wether it has direct current (DC) or alternating current (AC) like i think you are than the answer is direct current (DC)
Why is an AC current system used in a domestic electrical supply?
Alternating current (AC) is easier to transmit over long distances than is direct current (DC).
What is direct current and alternating current?
Direct current is a constant, steady state current, such as obtained from a battery. Alternating current is constantly switching polarity, usually in a sinusoidal waveform, such as obtained from an alternator, a form of generator that does not have a commutator.Direct Current and Alternating Current:The first and simpler type of electricity is called direct current, abbreviated "DC". This is the type of electricity that is produced by batteries, static, and lightning. A voltage is created, and possibly stored, until a circuit is completed. When it is, the current flows directly, in one direction. In the circuit, the current flows at a specific, constant voltage (this is oversimplified somewhat but good enough for our needs.)The other type of electricity is called alternating current, or "AC". This is the electricity that you get from your house's wall and that you use to power most of your electrical appliances. Alternating current is harder to explain than direct current. The electricity is not provided as a single, constant voltage, but rather as a sinusoidal (sine) wave that over time starts at zero, increases to a maximum value, then decreases to a minimum value, and repeats.
What is one way that alternating current is more useful than direct current-?
alternating current is easier to transfer long distances
