Table of Contents
- 1 What could possibly happen if a man touched a live wire with 2000 mA?
- 2 Why does the warning says Danger High Voltage and not danger high current?
- 3 How strong is 10 amp?
- 4 Why do we see warnings of high voltage rather than high current?
- 5 What is the normal range of an electric shock?
- 6 Can you die from a 12 volt generator?
What could possibly happen if a man touched a live wire with 2000 mA?
For example, a person with dry skin has a resistance of about 200 kΩ. If he comes into contact with 120-V AC, a current I = (120 V)/(200 k Ω) = 0.6 mA passes harmlessly through him….Table 1. Effects of Electrical Shock as a Function of Current.
Current (mA) | Effect |
---|---|
1 | Threshold of sensation |
5 | Maximum harmless current |
Why does the warning says Danger High Voltage and not danger high current?
The amount of current through a body is equal to the amount of voltage applied between two points on that body, divided by the electrical resistance offered by the body between those two points. Hence, the danger of high voltage that can generate enough current to cause injury or death.
Which is dangerous high voltage or high current?
Higher voltage allows for the production of higher, more dangerous currents. Resistance opposes current, making high resistance a good protective measure against shock. Any voltage above 30 is generally considered to be capable of delivering dangerous shock currents.
What is safe voltage?
The safe voltage is the voltage that does not cause a physical shock, generally less than 36 volts. A safe voltage is a voltage that does not cause direct death or disability. The “safety extra low voltage” that allows continuous contact under normal environmental conditions is 24V. (
How strong is 10 amp?
While any amount of current over 10 milliamps (0.01 amp) is capable of producing painful to severe shock, currents between 100 and 200 mA (0.1 to 0.2 amp) are lethal.
Why do we see warnings of high voltage rather than high current?
Originally Answered: If voltage doesn’t kill, then why do scary “HIGH VOLTAGE” signs exist? Because high voltage carries with it the risk of high current. When you touch a voltage source, there is no guarantee that the resistance between your body part and ground is so high as to pass negligible current.
How many AMPS is dangerous on a circuit breaker?
* Contact with 20 milliamps of current can be fatal. As a frame of reference, a common household circuit breaker may be rated at 15, 20, or 30 amps. Interestingly – this answer has 1 downvote, and surprisingly few upvotes considering the undoubted truth it tells.
How much voltage is dangerous to your health?
How much voltage is dangerous is not really a static number as it depends on your body resistance, time of exposure and source “stiffness” (i.e. how much current it can supply). You get figures like 60V (or as low as 30V) which are an attempt at an average figure above which “caution should be taken”.
What is the normal range of an electric shock?
In general, for limb-contact electrical shocks, accepted rules of thumb are: 1-5 mA is the level of perception; 10 mA is the level where pain is sensed; at 100 mA severe muscular contraction occurs, and at 100-300 mA electrocution occurs.
Can you die from a 12 volt generator?
While 12V is almost always safe, worst case situations can and have lead to death. Mechanism may be ventricular fibrillation BUT paralysis of the respiratory muscles occurs at about 20\% of the current needed to introduce fibrillation. See discussion and references at the end of this answer.