Direct or alternating current, which one is more dangerous for the average person

Probably each of us at least once heard words such as AC and DC. Have you ever wondered which of these is more dangerous? In this article I will tell you about the direct and alternating current, and also voiced the parameters for achieving these, these currents are simply life-threatening.

What is the difference of currents

To begin, let's delve into the technical side of the issue and understand what is the main difference AC from DC, so get started.

Important. In this article, in addition to the current to be considered concepts such as frequency and voltage, because they are inextricably linked.

D.C. Well chickpeas all becomes clear from the name itself. At constant current, electrons in a conductor moving in one direction a continuous stream.

You probably ask, so where we used DC, because in the outlet flows of variable names. And he (DC) is used in all electrical appliances, powered by batteries or rechargeable batteries, such as: player, tape recorder, cell phone, etc...

But in an alternating current motion of charged particles occurs in an uncontrolled manner. You can argue, so wait, the light stays on, and it is powered by the AC. In fact it is not lit, and goes out and lights up again with a frequency of 50 times per second, and all because we have adopted such a standard.

But ours with you eyes and brain are unable to fully process the data, so the effect of continuous light is created for us.

Under what terms the current becomes dangerous.

I will not clog your head with numbers, and consider pretty standard values, which can be found in virtually every home.

Frequency. In the Russian Federation, as in most countries of the former USSR in the mains frequency should be 50 Hz. With this frequency direct current is alternating safer about 4 times.

Voltage. The three-phase voltage is 380 volts, and for a standard single phase value is 220 volts. And these figures alternating current is more fatal to any living organism.

Now let's go directly to the current and look at all his dangerous ranges

0.6-1.5 milliamps.

In the case of AC people may feel a slight tingling and tingling of the skin.

DC - is not perceived.

2-3 milliamps.

AC: can slightly reduce the hand, a sense of the current flow can be spread on the wrist.

Direct current was still not perceived.

5-7 milliamps.

AC: begins to cause convulsions and persistent pain.

In these figures just beginning to be felt tingling of the skin, and heating at a constant current.

8-10 mA.

AC: severe pain and cramps in the hands, but they can still be torn away from the bare wire.

DC: Growing skin heating effect.

20-25 milliamps.

AC: instant paralysis of muscles in the arms, let alone lead impossible. Begin serious breathing difficulties.

DC: skin felt even more heat, begins to appear as a slight contraction of the muscles.

50-80 milliamps.

AC: Complete paralysis of respiratory function. Begin serious problems with the heart muscle.

DC: Strong heating, muscle cramps. Deterioration of respiratory function.

90-100 mA.

AC: Complete respiratory paralysis and cardiac fibrillation in three seconds.

DC: paralysis of the respiratory system.

As you probably already understand, an alternating current that surrounds us almost 24 hours a day, is more dangerous than permanent. So do not ignore the basic rules of safety. Take care and thank you for your attention!

Dear Reader, my article was useful and interesting?! Then be sure to Put thumbs up, subscribe to my RSS feed ENERGOFIKSIK and share articles to social services. networks. It is very important to feel your support. After all, it will create even more high-quality materials. If you have any questions or suggestions, here is my email: [email protected]