Electrical Shocks Effect

Effect electrical shocks to human body, An electric shock can result in anything from a slight tingling sensation to immediate cardiac arrest. The sev

What effect do electrical shocks have on the body? An electric shock can result in anything from a slight tingling sensation to immediate cardiac arrest. The severity depends on the following:

• the amount of current flowing through the body,
• the current’s path through the body,
• the length of time the body remains in the circuit, and
• the current’s frequency.

This table shows the general relationship between the amount of current received and the reaction when current flows from the hand to the foot for just 1 second.

Effects of Electric Current in the Human Body: 

CURRENT	REACTION
Below 1 milliampere	Generally not perceptible
1 milliampere	Faint tingle
5 milliamperes	Slight shock felt; not painful but disturbing. Average individual can let go. Strong involuntary reactions can lead to other injuries.
6–25 milliamperes (women)	Painful shock, loss of muscular control*
9–30 milliamperes (men)	The freezing current or let-go range.* Individual cannot let go, but can be thrown away from the circuit if extensor muscles are stimulated.
50–150 milliamperes	Extreme pain, respiratory arrest, severe muscular contractions. Death is possible.
1,000–4,300 milliamperes	Rhythmic pumping action of the heart ceases. Muscular contraction and nerve damage occur; death likely.
10,000 milliamperes	Cardiac arrest, severe burns; death probable

• [accordion]
• 1. Health Effects of Electric Shock
• 
• 2. The Electrically Safe Work Condition
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• 3. NFPA 70E Handbook for Electrical Safety
• 4. NFPA 70E 2021 Standard for Electrical Safety in the Workplace
• 5. NFPA 70E (2018) Electrical Safety in the Workplace
• 6. IEC 61140-2016 Protection Against Electric Shock Common aspects
• 7. IEC 60364-4-41-2017 LV electrical installations Protection for safety
• 8. BS EN 50274-2002 (2010) LV switchgear - Protection against electric shock