How to Protect Your Electrical Systems with SPDs and Lightning Arresters

Have you ever wondered what happens when lightning hits nearby or when a sudden voltage spike runs through your building?

Let's put it this way — one lightning strike can carry over 100 million volts. And that much energy doesn't just flicker your lights; it can silently destroy your electrical systems, fry sensitive devices, and cause expensive downtime.

That's where surge protection devices (SPD) and lightning arresters step in as your electrical bodyguards.

Let's break it down!



What Exactly Are SPDs?

Think of a surge protection device (SPD) as your system's gatekeeper. The moment it detects an unexpected surge (such as from a distant lightning strike or a switching event within your facility), it safely diverts that excess energy into the ground.


Even microsecond surges — the kind you don't even notice — can slowly damage sensitive equipment like servers, industrial machinery, or even your everyday electronics. That's why surge protection devices type 2 are essential in modern-day buildings and industrial setups. 

They're designed to protect against residual surges downstream from main distribution boards.

If you're building, upgrading, or just looking to prevent expensive breakdowns — SPDs are non-negotiable.


Why Lightning Arresters Matter

Now, here's where lightning arresters come in.


While SPDs are effective for internal and residual surges, they're not designed to withstand a direct lightning strike. Lightning arresters are installed on rooftops or poles and intercept the strike before it reaches your system. They guide that energy straight to the ground — safely and instantly.


Want to go a step further? ESE (Early Streamer Emission) lightning arresters offer wider protection and strike earlier than traditional systems. Perfect for high-rise buildings, plants, or any structure with serious exposure.


Why Use Both?

Here's the secret: SPDs + Lightning Arresters = Complete Protection

  • Direct protection from lightning
  • Residual surge control
  • Equipment and data safety
  • Reduced risk, downtime, and maintenance costs

What to Look For


If you're shopping for surge protection devices, type 2 and lightning arresters:

  • Make sure they meet IEC standards (61643 for SPDs, 62305 for arresters)
  • Choose a reliable brand — like AXIS India
  • Consider long-term value, not just the price tag
  • Get expert installation for full effectiveness

Final Words

Your electrical system deserves serious protection — and so does your business.

Don't wait for a surge to remind you why prevention matters.


Explore AXIS India's certified range of surge protection devices, SPDs, and lightning arresters.


Have questions? We're just a message away.


Contact us now!

 

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