Electricity is an essential part of modern life, but it is also inherently dangerous, even at common household voltages like 120V. Many people underestimate the risks associated with standard residential electrical systems, assuming that higher voltages are the primary threat. However, most electrical fatalities actually occur at 120V, the voltage found in most homes in North America. This is because 120V is sufficient to cause severe injury or death by disrupting the heart’s electrical system, leading to cardiac arrest, or by causing severe burns and muscle contractions that can prevent a person from letting go of the electrical source. Even a small amount of current—as little as 50 milliamps—can be lethal under the right conditions.

Electrical safety is critical, and one of the most important principles is to always treat electricity with respect. This means understanding that even a seemingly minor mistake, such as touching a live wire or improperly connecting a circuit, can have catastrophic consequences. Homeowners should never attempt DIY electrical repairs unless they have the proper training, education, and skills. Electrical work requires a thorough understanding of wiring systems, circuitry, and safety protocols, as well as familiarity with local electrical codes. Without this knowledge, there is a high risk of creating hazardous conditions, such as short circuits, overloaded circuits, or improperly grounded systems, which can lead to fires, electrocution, or damage to appliances and electronics.

For residential homeowners, the safest approach is to hire a licensed electrician for any electrical repairs or installations. However, if a homeowner decides to undertake minor electrical work, they must take extreme caution. Always turn off the power at the circuit breaker and use a voltage tester to confirm that the circuit is de-energized before starting any work. Never work on live circuits, and avoid overloading outlets or extension cords. Additionally, use proper tools with insulated handles and wear personal protective equipment (PPE) such as rubber-soled shoes and gloves. Remember, electricity does not forgive mistakes, and the consequences of an error can be life-threatening. When in doubt, it is always better to seek professional help rather than risk injury or property damage.

120V Don’t Care!

Isaac Weiland

February 11, 2025

4 min read