Lightning Arresters

Lightning Arresters for External Lightning Protection & System Safety

Lightning arresters protect electrical systems from direct lightning strikes. In simple terms, they divert high-voltage lightning currents safely to ground. As a result, they prevent severe damage to equipment and infrastructure.

Engineers install lightning arresters at power distribution points and outdoor installations. Unlike SPDs, which handle transient surges, lightning arresters manage high-energy external strikes. Therefore, they provide the first line of defense in lightning protection systems.

At UniGulfSupply, we supply durable lightning arresters for industrial and infrastructure projects across Oman & UAE. In addition, our range supports high discharge capacity and long service life. Moreover, weather-resistant designs ensure reliable outdoor performance. For this reason, industries depend on them for critical protection.

These devices commonly operate alongside
→ Surge Protection Devices
→ Earthing & Grounding Systems
→ Power Distribution Equipment

Consequently, they create a complete lightning protection system.

Types:

Different types support various applications. For example:

• Rod gap arresters – Basic lightning protection
• Metal oxide arresters – Modern, high-performance protection
• Polymer-housed arresters – Lightweight and weather-resistant
• Station-class arresters – Used in high-voltage systems

As a result, users can select the appropriate solution based on system voltage and risk level.

Why these Arresters Are Important!

Lightning strikes can cause catastrophic damage to electrical systems. Without proper protection, equipment failure and safety risks increase significantly. As a result, infrastructure downtime and repair costs rise.

Using lightning arresters helps you:

• protect systems from direct lightning strikes
• reduce equipment damage
• improve safety of installations
• support long-term reliability

Additionally, combining arresters with SPDs provides complete protection from external and internal surges.

Typical Applications

Technicians install lightning arresters in:

• power transmission and distribution systems
• industrial facilities
• telecommunications towers
• renewable energy installations

Because these systems are exposed to lightning risk, external protection becomes essential.

Selecting the Right Arrester!

When choosing a lightning arrester, consider:

• system voltage
• discharge capacity
• installation location
• environmental conditions
• compatibility with grounding systems

For example, high-voltage systems require station-class arresters. In contrast, smaller installations use compact polymer units. Additionally, proper grounding ensures effective operation.

FAQs

What is a lightning arrester?
It is a device that protects electrical systems by diverting lightning currents to ground.

How is it different from an SPD?
A lightning arrester handles direct strikes, while an SPD protects against internal voltage surges.

Where are these arresters installed?
They are installed in outdoor and high-risk lightning exposure areas.

Lightning Protection Solutions in Oman & UAE

UniGulfSupply supplies reliable lightning and surge protection solutions across Oman & UAE. Our range includes surge protection devices, lightning arresters, and complete power distribution equipment for total system safety.

Lightning arresters are critical for protecting infrastructure from extreme electrical events. When combined with SPDs, they ensure comprehensive protection for modern electrical systems.