Saturday, August 13, 2016

Which is more dangerous: AC or DC power?






  • AC can flow through capacitance, DC cannot.
  • Our bodies has some resistance as well as capacitance. When DC is applied our body only offers resistance. When AC is applied, due to the capacitance a higher current will flow compared to the same voltage in DC.
  • At very high frequency AC, the body becomes poor in conduction due to skin effect.
  • While it may take a much higher voltage for DC to be fatal, once you reach such high voltage - DC is much more dangerous than AC. As the current it delivers is continuous unlike AC which goes up and down.
    • at

    No comments:

    Post a Comment

    Subscribe to: Post Comments (Atom)

    HOW DO BULBS WORK

    Thomas Edison invented many things, but the light bulb wasn’t one of them. Edison didn’t labor through a supposedly 1000 attempts to invent ...

    • FUSE
      This is the sacrificial device which is used in an electric circuit to protect the electrical appliances from over current.This is t...
    • ALTERNATING CURRENT GENERATOR
      This is the device which is used to produce an A.C from mechanical energy Principle :      A.C. generators or alternators (as th...
    • WHY DO POWER LINES PRODUCE A BUZZING SOUND?
      While walking down a particularly empty street, especially at night, with high power lines overhead, have you ever heard a distinct buzzing ...