Transcript Electrical Safety • Most common electrical injury is to the nervous system.

Electrical Safety
• Most common electrical injury is to the
nervous system.
– Temporary paralysis
• Could stop breathing
– Involuntary muscle contractions
• Disrupt heartbeat
• Halt blood flow to the brain
• Death in a few minutes
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Electrical Safety
Summary of Physiological Reactions to various current levels
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Simplified Electrical Model
of the Human Body
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Example
V  250V
RA  400
RT  50
RL  200
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Example (continued)
V  IRA  IRT  IRL
V  I ( RA  RT  RL )
V
I
RA  RT  RL
I
250V
I
(400  50  200)
I  385mA
NEED TO TAKE PRECAUTIONS TO AVOID SHOCK!
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