www.okhighered.org/training-center/presentations/electricalsafetynq.ppt

affiliated with the authors of this page or responsible for its content.






ELECTRICAL SAFETY


Safety Training for the


Non-Qualified



2


DEFINITIONS



Electricity: Negatively charged particles moving over a conductor
Current: Movement of electrons along  a conductor
Ground or grounding: Draining or passage of electricity into the earth


3


DEFINITIONS



Alternating current: Current that alternates direction through a conductor
Direct current: Current that flows in the same direction through a
conductor
Static electricity: Electrical charge resulting from friction between
two objects or from objects striking


4


DEFINITIONS



Shock: Condition when the body becomes a part of a circuit
Polarity: The flow of electrons in the proper direction

From the source to the device
Negative to positive through a device
Like charges attract; unlike charges repel


5


DEFINITIONS



Conductor: A material with a relatively  low resistance to the
flow of electrons
Insulator: Material that has a high resistance to the flow of electrons


6


HOW IS THE SERIOUSNESS OF AN ELECTRICAL SHOCK DETERMINED?



The voltage (pressure) on circuit
Skin resistance and internal resistance
Amount of current flowing through the body, a function of volts and
amps
Path of the current
Bodys reaction to the shock
Length of time electricity is applied


7


WHAT CAUSES SHOCKS?



Touching both wires of an electrical circuit