Electricity and the Human Body

Thermal Hazards

Shock Hazards

• Factors:

  • Amount of current

  • Path of current

  • Duration of shock

  • Frequency of current

• Human body is mainly water and electrolytes, so it's a decent conductor​

• Muscles are controlled by electrical nerve impulses

  • A shock can cause a muscle to contract violently

    • Causes victim to close their fist around wire tightly

• Shocks can cause the heart to stop

• Human body is most sensitive at 50-60 Hz​