WHAT IS ELECTRICITY?

• Voltage – electrical pressure (water pressure)
• Resistance – restriction to electrical flow (pipe friction)
• Amperes – electrical flow rate (gallons/min)
• Watts – amount used

AMPS =     VOLTAGE                AMPS =    WATTS    
              RESISTANCE                           VOLTAGE

THE HAZARDS OF ELECTRICITY

• Shock
  • Electrical current travels in closed circuits.
  • You get a shock when some part of your body becomes part of an electric circuit.
  • An electric current enters the body at one point and exits the body at another.
• Arcing or sparking
  • Arcing or sparking occurs when high-amperage currents jump from one conductor to another.
• Explosions
  • Explosions occur when electricity provides a source of ignition for an explosive mixture in the atmosphere.
• Fires
  • Electricity is one of the most common causes of fire.

THE SEVERITY OF SHOCK A PERSON CAN RECEIVE DEPENDS ON:

• Quantity (Amperes) of current through the body
  •  >3 mA – Indirect accident.
  •  >10mA – Muscle contraction.
  •  >30mA – Lung paralysis, usually temporary.
  •  >50mA – Possible ventricular fibrillation(fatal).
  •  100mA to 4A – Certain ventricular fibrillation.
  •  >4A – Heart paralysis, severe burns.
•  Path of current through the body
•  Length of time the body is in the circuit

SAFETY REMINDERS – ALL TEMPORARY POWER MUST BE PROTECTED BY GFCI AND ASSUME ALL ELECTRICAL OUTLETS AND CORDS ARE LIVE UNTIL PROVEN OTHERWISE