8th Grade Ch. 2 Sec. 6 Electrical Safety

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8th Grade Ch. 2 Sec. 6 Electrical Safety

  1. 1. Ch. 2 Sec. 6 Electrical Safety
  2. 2. short circuit <ul><li>connection that allows current to take path of least resistance </li></ul>
  3. 3. Electric Shocks <ul><li>Severity depends on current (amps) </li></ul><ul><li>Currents > 0.2 amps can cause burns & stop your heart !!!! </li></ul>
  4. 4. <ul><li>Circuit = electrically grounded when charges able to flow directly from circuit  into Earth in case of short circuit </li></ul>
  5. 5. third prong <ul><li>round part of plug </li></ul><ul><li>connects metal shell of appliance to ground wire of bldg </li></ul>
  6. 6. <ul><li>Fuse = device that has thin strip of metal that melts if too much current flows thru it </li></ul><ul><ul><li>protects devices plugged into it </li></ul></ul>
  7. 7. <ul><li>Circuit breaker = safety device that uses electromagnet to shut off circuit when current gets too high </li></ul>
  8. 8. Circuit Boxes and Circuit Breakers [01:45
  9. 9. Electric Shock First Aid <ul><li>1. Remove the victim from the source of electricity before you touch him. Either turn off the master switch to disconnect the power, or use a nonmetal, dry object such as a stick to pull the wire or electrical source away from the victim's body. </li></ul><ul><li>2. If he is not breathing, begin rescue breathing immediately; a victim whose heart has stopped breathing needs CPR. </li></ul><ul><li>3. If the person is unconscious, but is breathing and has a heartbeat, you should place him in the recovery position and monitor his breathing and heart rate until medical help arrives. </li></ul>
  10. 10. Victims of Electric Shock Electric shock injury to the foot Electric shock injury to the hand Electric shock burns due to current flow through metal framed glasses.
  11. 11. <ul><li>Remember, electricity can be dangerous!!! </li></ul>

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