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How to Protect Electronics from Lightning Strikes: A Comprehensive Guide

How to Protect Electronics from Lightning Strikes

Lightning storms? Unplug electronics to be safe. Surge protectors offer good defense too, but can’t guarantee protection from a direct strike. Consider both for valuable equipment.

Table of Contents

What is Lightning Strike?

A lightning strike is a giant spark of electricity that travels between the atmosphere and the ground, or within the atmosphere itself. It’s one of the most powerful forces in nature!

The Inception...

Lightning strikes can be a serious threat to your valuable electronics. Not only can they cause immediate damage, but they can also lead to long-term issues that may not be immediately apparent. In this guide, we’ll explore the various ways to safeguard your devices from lightning-induced damage and discuss the essential equipment you need for protection.

 

What Happens during Lightning Strikes?

  • Build-up: Inside a thunderstorm cloud, areas with positive and negative charges build up. Air normally acts as an insulator, preventing these charges from discharging.
  • Breakdown: When the charge difference gets strong enough, the air can no longer insulate, and a rapid discharge of electricity occurs – that’s the lightning strike!
  • The Flash: The discharge heats the air around it to an incredibly high temperature, causing it to glow brightly – that’s the visible lightning bolt we see.
  • Types of Strikes: Lightning can travel between clouds (cloud-to-cloud), within a cloud (intra-cloud), or between a cloud and the ground (cloud-to-ground). Cloud-to-ground strikes are the ones that can be dangerous to people and objects on the ground.

How Lightning Threatens Electronics

Before we dive into protection methods, it’s crucial to understand how lightning poses a risk to your electronics:

  1. Direct Strikes: Although rare, a direct lightning strike can completely destroy electronic devices.
  2. Power Surges: The most common threat, power surges occur when lightning strikes near power lines, sending excessive voltage through your home’s electrical system.
  3. Electromagnetic Pulse (EMP): Lightning generates a powerful electromagnetic field that can induce currents in nearby electronic circuits, potentially damaging sensitive components.
lightning threat
unplug power cords

Ways to Protect Your Electronics from Lightning

1. Unplug Power Cords During Storms

One of the simplest yet most effective ways to protect your electronics is to unplug them during thunderstorms. This method completely disconnects your devices from the electrical grid, eliminating the risk of power surges.

Unplug sensitive electronics first, such as computers, TVs, and game consoles. These devices are more likely to be damaged by a power surge.

If you don’t have time to unplug everything, surge protectors are the next best thing. Make sure you have surge protectors for all of your valuable electronics.

Create a checklist of essential devices to unplug during storms, including TVs, computers, gaming consoles, and large appliances.

  1. Protect Your Electronics from Points of Entry

Lightning can enter your home through various points, including:

  • Electrical outlets
  • Phone lines
  • Cable TV or satellite dish connections
  • Ethernet cables

To minimize risk, install surge protectors at these entry points. This creates a barrier against sudden voltage spikes.

  1. Disconnect Communication Cables

Don’t forget about data and communication lines. Unplug:

  • Telephone cords
  • Ethernet cables
  • Coaxial cables for cable TV or satellite

These lines can conduct electricity from lightning strikes, potentially damaging connected devices.

Equipment to Protect Electronics from Lightning

  1. Surge Protectors

Surge protectors are your first line of defense against power surges. They work by diverting excess voltage to the grounding wire, protecting connected devices.

Key features to look for in a quality surge protector:

  • Joule rating (higher is better)
  • Clamping voltage (lower is better)
  • Response time (faster is better)
  • UL 1449 certification

Remember: Surge protectors have a limited lifespan and should be replaced every few years or after a major surge event.

  1. Backup Generators

While generators don’t directly protect against lightning, they can be crucial in maintaining power during storm-induced outages. This helps prevent data loss and keeps essential systems running.

Types of backup generators:

  • Portable generators
  • Standby generators (automatic operation)
  • Inverter generators (for sensitive electronics)
  1. Service Entrance Surge Protector

A service entrance surge protector is installed at your home’s main electrical panel. This whole-house solution provides an additional layer of protection by reducing the intensity of surges before they reach your individual devices and appliances.

Benefits of a service entrance surge protector:

  • Protects all circuits in your home
  • Reduces wear on individual surge protectors
  • Can handle larger surges than point-of-use devices

Additional Tips for Lightning Protection

  • Use UPS (Uninterruptible Power Supply) devices for critical equipment.
  • Ensure proper grounding of your home’s electrical system.
  • Consider installing lightning rods for whole-house protection.
  • Keep electronics away from windows during storms.
  • Backup important data regularly to cloud storage or external hard drives.

Conclusion

Protecting your electronics from lightning strikes requires a multi-layered approach. By implementing the strategies and equipment discussed in this guide, you can significantly reduce the risk of lightning-induced damage to your valuable devices. Remember, the cost of prevention is always lower than the cost of replacing damaged electronics.

Stay safe, stay prepared, and keep your electronics protected during those stormy nights!

Frequently Asked Questions

  • How should an electronic device be protected during an electrical storm?

    Unplug it! If time is tight, a surge protector offers some defense.

  • Will a surge protector stop lightning?

    No, a direct strike might overpower even the best surge protector.

  • What is the best protection against lightning?

    Unplugging electronics is the ultimate defense.

  • How do I protect my computer from lightning?

    Unplug it during storms. Consider a surge protector for added safety.

  • How to save electronic devices from lightning?

    Unplugging power cords is the best way to prevent damage.

  • How do you protect the electrical system for lightning?

    A whole-home surge protector installed by an electrician offers extra defense.

  • How to make something lightning proof?

    Unfortunately, nothing is truly "lightning proof." But unplugging and surge protectors greatly reduce risks.

TAKO Total Lightning Protection Solutions

TAKO since 1979 offers total solutions from lightning. It also offers earthing and grounding solutions. TAKO has MS IEC62305 Compliant Risk Assessment Software

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