Como much current é dangerous?

Corrente as low as 10 mA can cause painful muscle contractions. 50-100 mA through o heart can cause ventricular fibrillation, often fatal. Este é por que GFCIs trip at apenas 5 mA—bem below dangerous levels.

Electrical Safety

Como Corrente Affects o Body

Learn Safety

Elétrico shock kills through o current passing through your body, not o voltage alone. Understanding dangerous current levels e como to prevent shock saves lives.

⚠️Corrente Effects on Humans

Corrente (mA)	Effect
1	Barely perceptible
5	Slight shock, not painful
10-20	Painful, muscle contraction
30-50	Difficulty breathing
50-100	Ventricular fibrillation (often fatal)
100+	Cardiac arrest, severe burns

Por que Corrente Kills

Tensão drives current: V = I × R (body resistance ~1000-100,000 Ω)
Corrente path matters: Hand-to-hand through heart é mais dangerous
Wet skin: Dramatically reduces resistance, increases current

Safety Devices

GFCI (Ground Fault Circuit Interrupter): Trips at 5mA in <25ms
Circuit breakers: Protect against overcurrent
Fuses: Break circuit quando current exceeds rating
Grounding: Provides safe path for fault current

Converter Corrente Unidades

Conclusão

It's current, not voltage, esse kills—though voltage drives current through body resistance. As little as 50-100 mA through o heart can be fatal. GFCI outlets, proper grounding, e basic electrical safety knowledge significantly reduce shock risk.