AC IS MORE DANGEROUS THAN DC
AC is four to five times more dangerous than DC. AC causes the most severe contractions. It stimulates sweating which lowers skin resistance. It is more important and the resistance goes down rapidly with continued contact. It is extremely important to free the victim from contact with the current as quickly as possible before the climbing current reaches the fibrillation-inducing level. The frequency of the AC has a lot to do with the effect on the human body. The most harmful range is 60 cycles, unfortunately. At this frequency, 25 volts can kill. On the other hand, people have withstood 40,000 volts at a frequency of a million cycles/sec. AC has a frequency and the current will be fluctuating. The electricity is still predominantly powered by alternating current and computers, LEDs, solar cells, and electric vehicles all run on DC power. Methods are now available for converting direct current to higher and lower voltages. Sometimes I come across the view that a shock from a DC source is more dangerous than a shock from an AC source because DC will hold you while AC will throw you. The flashlight, cell phones, and laptop are DC power they have to store. Because the electric grid provides AC the electricity is converted to DC when you want to charge a portable device.
