Contents
Does high current or high voltage kill?
Current will kill you but some amount of voltage is required to flow that current in the body breaking the human body resistance. In short, high voltage with a few micro amperes cause nothing to the human body like in high voltage supplying cathode ray tube in traditional TV set or high static voltage in the comb.
What voltage level is harmful?
In industry, 30 volts is generally considered to be a conservative threshold value for dangerous voltage. The cautious person should regard any voltage above 30 volts as threatening, not relying on normal body resistance for protection against shock.
When does high current or high voltage damage components?
Edit – I didn’t make it very clear, I wasn’t specifically talking about damaging the resistors, I mean’t damage various components that could be in the circuit. A general answer is that electronic/electrical components are damaged when their electrical ratings are exceeded.
Can a cable be damaged by high voltage?
There is no evidence that damage occurs to a cable subjected to higher voltages if a breakdown does not happen. However, if a DWV failure (breakdown) does occur, the energy is limited so that the risk of damage is low. Moreover, if damage did occur, the IR test is designed to detect the carbon trail damage.
Can a Cirris hipot be damaged by high voltage?
If you were to touch wires together on a Cirris hipot tester during a high voltage test, no damage would occur because of the limited amount of current and quick shut down time. In contrast, an AC line short that triggers a circuit breaker takes maybe 200 milliseconds at perhaps up to 100 amps.
How is damage accomplished in a faulty circuit?
So purely speaking, all damage in a faulty circuit is always accomplished by the current. It’s temping to say that voltage damaged the circuit and it does in a way but in the end the voltage only encourages the current flow which is always what does the actual work or damage.