Is the 12V voltage safe for people to touch no matter what the current is?

The answer is no, the safe current of people is generally 50mA per second, when the voltage is constant, according to Ohm's law, the size of the current is inversely proportional to the resistance; In the case of 12V, when you are in a humid environment there is still danger, the current domestic safety level range can be divided into the following levels: 42V 36V 24V 12V 6V

Yes, because a voltage of 12V cannot pass through the human body. The resistance of the human body is relatively large.

If you don't know, don't talk nonsense! It's going to die.

The so-called safety voltage is all relative, i.e. relative to the environment and the state of the person.

What really determines whether it is dangerous or not is determined by the current flowing through a particular part of the body and the time of day.

Usually the current that people can perceive is a few milliamps, and the DC current below 50mA is safe for the human body, and it is likely to be fatal if it exceeds this value, and if it is a long-term electric shock, 10 milliampere currents may also be fatal.

Some people were electrocuted by the lamp transformer, 36V

Some people were killed by electric welders, 70V

Some people didn't die after touching 220.

Therefore, no one can be careless at any time, and no one can guarantee that they will always be lucky.

Yes, because the current through the human body is determined by the resistance of the human body, a voltage of 36 volts cannot produce a large current on the human body.

Basically, the voltage of 12V has no effect on people.

It's basically fine, the human body's withstand voltage is 36V

I don't feel the current when it's small, but I feel it when the current is big.

The degree of harm of electric current to the human body is related to various factors such as the intensity of the current passing through the human body, the duration of the energizing, the frequency of the current, the part of the current passing through the human body, the physical condition of the electrocutor, and the environment.

In general, 30mA is taken as the safe current.

For highly hazardous places, 10mA should be taken as the safe current.

In the air or in water, 5mA should be taken as the safe current.

Industry regulations The safety voltage is 36V and the safe current is 10mA for the following reasons:

The degree of harm to the human body of electric shock mainly depends on the size of the current passing through the human body and the length of time it is on. The greater the current intensity, the greater the fatal danger; The longer it lasts, the more likely it is to die. The minimum value of current that can be perceived by a person is called the perceived current, which is 1 mA for AC and 5 mA for DC; The maximum current that a person can get rid of after an electric shock is called getting rid of the current, which is 10mA for AC and 50mA for DC; The current that is life-threatening in a relatively short period of time is called a lethal current, such as a current of 100mA passing through the human body for 1s, which can be enough to make a person fatal, so the lethal current is 50mA.

In the case of protection against electric shock, the current allowed by the human body can generally be considered as 30mA.

The safe voltage is 36V and the safe current is 10mA for the following reasons: The degree of harm to the human body of electric shock mainly depends on the size of the current passing through the human body and the length of time it is powered. The greater the current intensity, the greater the fatal danger;

No higher than 36v (physics has appeared in the question!) ）

Safety voltage refers to the voltage that does not directly cause death or disability to a person.

Under normal environmental conditions, the "safe extra low voltage" that allows continuous contact with hand tremor is 50 V.

The human body's response to electric currents:

8 10mA hands have difficulty getting rid of the electrodes and have a sharp pain (finger joints).

20 25mA hands quickly paralyzed, unable to get rid of electrodes automatically, breathing difficult.

50 80mA breathing is difficult, and the atria begins to tremble.

90 100mA respiratory paralysis, after three seconds the heart begins to paralyze and stops beating.