1. The Severity of Electric Shock Accidents
Electricity is invisible, but the moment it touches the human body, it can be fatal.
An electric shock is not just a painful jolt — it can cause cardiac arrest, respiratory failure, severe burns, and nerve damage, often leaving long-term aftereffects.
According to data from the Korea Electrical Safety Corporation (KESCO), hundreds of electric shock incidents are reported every year in Korea, and some result in death.
In industrial sites, the risk is higher because workers handle high-voltage electrical equipment.
Yet even at home, small acts of carelessness — a wet hand touching an outlet, an overloaded power strip, or a damaged wire — can lead to disaster.
Electric shock accidents are best addressed through prevention, but if one occurs, quick and proper action can save lives.
2. Understanding Electric Shock
2.1 What Is an Electric Shock?
An electric shock occurs when the human body becomes part of an electrical circuit and current passes through it.
The current damages tissues, disrupts cell membranes, and interferes with nerve and muscle function — sometimes fatally.
2.2 The Effect of Current on the Human Body
| Current (mA) | Physiological Effect |
| ≤1 mA | Barely perceptible, tingling sensation |
| ~5 mA | Mild shock, uncomfortable but not harmful |
| 10–20 mA | Muscle spasms, difficulty letting go |
| 50 mA+ | Ventricular fibrillation possible, respiratory distress |
| ≥100 mA | Cardiac arrest and high risk of death |
The danger of electric shock depends on the current strength, path through the body, and duration of contact.
2.3 Common Causes of Electric Shock
- Leakage current (Ground fault): Electricity escaping from circuits and contacting the body
- Short circuit: Damaged insulation causing arcing or sparks
- Moisture: Touching appliances with wet hands or feet
- Defective wiring: Exposed or poorly connected wires
- Equipment failure: Insulation breakdown inside appliances
- Industrial hazards: Careless work around high-voltage systems
3. Symptoms of Electric Shock
- Mild: Tingling, slight muscle twitching
- Moderate: Burns, breathing difficulty, confusion
- Severe: Cardiac arrest, respiratory failure, unconsciousness
- Aftereffects: Nerve injury, muscle damage, heart rhythm disorders, organ impairment
4. What to Do in Case of Electric Shock
4.1 Cut Off the Power (First Priority)
- Turn off the circuit breaker or unplug the device.
- If that’s impossible, use a non-conductive object such as a wooden stick, rubber gloves, or plastic tool to move the wire.
- Never touch the victim or wire with bare hands.
4.2 Rescue the Victim
- Approach only after confirming power is off.
- Move the victim to a safe location.
- Check breathing and pulse immediately.
4.3 First Aid
- No breathing or pulse: Begin CPR immediately (30 compressions + 2 rescue breaths).
- Compression depth: 5 cm for adults
- Rate: 100–120 compressions per minute
- Conscious victim: Keep calm and call emergency services.
- Burns: Cover with a clean cloth to prevent infection — do not apply ointments.
- Fractures or spasms: Do not move the victim unnecessarily; wait for paramedics.
4.4 Hospital Transfer
- Call 119 (emergency) immediately.
- Report the duration of contact, voltage level, and victim’s condition.
- At the hospital, victims should undergo cardiac, respiratory, and neurological evaluation.5. Emergency First-Aid Procedures
5. Emergency First-Aid Procedures
5.1 Cardiopulmonary Resuscitation (CPR)
- Check consciousness → If unresponsive, call for help.
- Check breathing for no more than 10 seconds.
- If absent, start chest compressions immediately.
- 30 compressions + 2 rescue breaths → repeat.
- Continue until breathing returns or medical help arrives.
5.2 Burn Treatment
- Cool the burned area under running clean water for at least 10 minutes.
- Do not burst blisters.
- Cover lightly with sterile gauze.
- Do not apply oil, ointment, or toothpaste.
6. Real-World Electric Shock Cases
- Home: A woman using a hair dryer in the bathroom was shocked by water contact. Her family cut the power and performed CPR — she survived.
- Industrial: A technician inspecting high-voltage equipment without insulated gloves suffered a fatal cardiac arrest.
- School: During a lab experiment, a student touched a live wire with wet hands — sustained finger burns and required ER treatment.
7. Preventing Electric Shock
7.1 At Home
- Never use electrical appliances with wet hands.
- Avoid overloading outlets or power strips.
- Unplug devices when not in use.
- Test the leakage circuit breaker (ELCB) regularly.
- Replace damaged cords immediately.
7.2 In Industrial Sites
- Always wear insulated gloves, safety shoes, and protective gear.
- Follow lock-out/tag-out (LOTO) and grounding procedures before work.
- Confirm power disconnection before approaching high-voltage systems.
- Keep switchboards clean and dry — remove dust and moisture regularly.
8. Laws and Safety Standards
- Occupational Safety and Health Act: Mandates workplace electrical safety management.
- Electrical Installation Standards: Defines insulation resistance, grounding, and cable ratings.
- Electrical Safety Management Act: Requires periodic safety inspections.
- Electrical Appliances Safety Act: Enforces KC certification for all consumer devices.
9. Emerging Safety Technologies
- Smart Circuit Breakers: IoT-based, capable of real-time monitoring and automatic shutoff.
- Wearable Safety Devices: Vibrate or alert when electric current is detected.
- AI-Driven Accident Prediction: Analyzes power-usage patterns to forecast shock risk.
- Non-Contact Current Sensors: Detect live wires safely before touching.
10. Key Takeaways
Electric shocks strike without warning — and the results can be fatal.
If an accident occurs:
Cut the power → Rescue safely → Perform first aid → Call emergency services.
To prevent one:
Practice everyday electrical safety and perform regular inspections.
In short: Prevention saves lives, and quick response saves seconds — seconds that matter most.