Power surges can happen anytime — during thunderstorms, sudden power cuts, or when the electricity supply fluctuates. In India, where voltage fluctuations are common, knowing what to do during a power surge is essential to protect your appliances and gadgets from costly damage.
What Is a Power Surge?
A power surge is a sudden spike in electrical voltage that exceeds the normal flow of electricity in your home. Even a small surge can damage sensitive electronics like TVs, refrigerators, computers, and routers.
Common Causes of Power Surges in India
- Lightning strikes during monsoon storms
- Frequent power cuts and sudden restoration
- Faulty wiring or overloaded circuits
- High-power appliances (like ACs or motors) switching on/off
- Utility grid issues
What to Do During a Power Surge
1. Unplug Devices Immediately
If you notice flickering lights or unusual sounds from appliances, unplug sensitive electronics (TVs, laptops, routers, etc.) to prevent permanent damage.
2. Switch Off the Main Power
If the surge is strong, turn off the main circuit breaker to protect your home’s entire electrical system.
3. Use Surge Protectors
Always plug expensive devices into surge protection power strips or stabilizers. These absorb excess voltage before it reaches your appliance.
4. Keep Devices on UPS or Inverter
For critical devices like Wi-Fi routers or desktop PCs, connect them to a UPS (Uninterrupted Power Supply) or inverter with built-in surge protection.
5. Wait Before Plugging Back
After the surge, wait at least 5–10 minutes before turning devices back on to ensure stable voltage.
How to Prevent Damage from Future Power Surges
- Install a whole-house surge protector near your main panel.
- Use stabilizers for heavy appliances like ACs and refrigerators.
- Regularly check wiring for wear and tear.
- Avoid overloading extension cords and sockets.
- Invest in energy-efficient appliances with built-in protection.
FAQs About Power Surges
Can a small surge damage my laptop or TV?
Yes, even small surges can shorten the lifespan of sensitive electronics.
Do surge protectors really work?
Yes, but only if they are of good quality and properly rated for your devices.
What’s the difference between a UPS and surge protector?
A surge protector blocks excess voltage, while a UPS provides backup power and also offers surge protection.
Final Thoughts
Knowing what to do during a power surge can save your devices from permanent damage. The key steps are unplugging devices, switching off the main power, and using surge protectors. With the right preventive measures, you can safeguard your home and electronics against sudden voltage spikes.