8th grade ch. 2 sec. 6 electrical safety
TRANSCRIPT
Ch. 2 Sec. 6 Electrical Safety
short circuit
• connection that allows current to take path of least resistance
Electric Shocks• Severity depends on
current (amps)• Currents > 0.2 amps
can cause burns & stop your heart !!!!
Circuit = electrically grounded when charges able to flow directly from circuit into Earth in case of short circuit
third prong• round part of plug
• connects metal shell of appliance to ground wire of bldg
• Fuse= device that has thin strip of metal that melts if too much current flows thru itprotects devices plugged into it
Circuit breaker= safety device that uses electromagnet to shut off circuit when current gets too high
Circuit Boxes and Circuit Breakers [01:45
Electric Shock First Aid 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.
2. If he is not breathing, begin rescue breathing immediately; a victim whose heart has stopped breathing needs CPR.
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.
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.
Remember, electricity can
be dangerous!!!