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My RFQ

Lighting Protection

Category Introduction

Lighting protection devices that use LED shunt or surge protection technology specifically designed to protect LED and other lighting circuits in situations where there may be excessive current, voltages or reverse connections. They are selected by the operating voltage range, clamping voltage and the mounting type which includes chassis mount, free hanging, holder, screw, or surface mount.

Product List

1 Items
PDF Mfr Part # Quantity
Available		 UnitPrice RFQ Series Packaging Product StatusVoltage - ClampingVoltageTechnologyNumber of CircuitsApplicationsMounting TypePackage / CaseSupplier Device Package
NUD4700SNT1G
NUD4700SNT1G
LIGHT PROTECT LED SHUNT 5.5V SMD
onsemi
 1,018 $0.67
Tape & Reel (TR) Active-5.5VLED Shunt1LED ProtectionSurface MountDO-216AAPowermite

About Lighting Protection

What are Lighting Protection?

Lighting Protection

Lightning protection systems are designed to safeguard structures and electronic systems from the destructive effects of lightning strikes. These systems work by providing a low-resistance path for the lightning current to travel safely to the ground, thereby minimizing the risk of fire, structural damage, and electrical surges. The basic operating principle involves intercepting the lightning strike with a network of air terminals (lightning rods), conducting the current through a series of down conductors, and dispersing it into the earth via grounding electrodes. This controlled pathway prevents the lightning from passing through the building's structure or electrical systems, thereby protecting both the physical and electronic integrity of the facility.

Types of Lighting Protection

1. Conventional Lightning Protection Systems

Conventional systems use a network of air terminals, down conductors, and grounding electrodes to create a direct path for lightning to follow. These systems are typically installed on rooftops and are designed to protect buildings and structures by intercepting lightning strikes and safely channeling the energy into the ground.

2. Early Streamer Emission (ESE) Systems

ESE systems are advanced lightning protection solutions that use a specialized air terminal to emit upward streamers earlier than conventional systems. This increases the protected area by attracting lightning strikes to the terminal, thus providing a larger zone of protection. ESE systems are often used in open areas or on tall structures where increased coverage is needed.

3. Dissipation Array Systems (DAS)

DAS work by reducing the likelihood of a lightning strike by dissipating the electrical charge in the atmosphere. These systems use a network of ionizing points to neutralize the charge build-up, effectively preventing the formation of a lightning strike. DAS are ideal for protecting sensitive installations like oil refineries and explosive environments.

How to choose Lighting Protection?

When selecting a lightning protection system, consider the following key parameters:

  • Structure Type and Height: Taller structures or those in open areas may require more comprehensive systems like ESE or DAS.
  • Environmental Conditions: Areas with high lightning activity or specific weather patterns may need robust protection solutions.
  • Regulatory Compliance: Ensure the system meets local and international standards for lightning protection.
  • Installation Requirements: Consider the ease of installation and maintenance, especially for complex systems.
  • Supplier Reliability: Evaluate the supplier's reputation, warranty offerings, and customer support services.

Assessing product quality involves reviewing certifications, testing results, and customer testimonials. Additionally, consider environmental factors such as soil resistivity for grounding systems and potential interference with existing infrastructure.

Applications of Lighting Protection

1. Telecommunications Industry

In telecommunications, lightning protection is crucial for safeguarding towers and equipment from strikes that can cause service disruptions and equipment damage. Systems are designed to protect both the physical structure and sensitive electronic components.

2. Energy Sector

Lightning protection is vital in the energy sector, particularly for wind turbines and solar panels, where strikes can lead to significant downtime and repair costs. Protection systems ensure the continuity of energy production and the safety of personnel.

3. Aviation Industry

Airports and aircraft require robust lightning protection to prevent damage to navigation systems and fuel storage facilities. Systems are designed to protect both ground infrastructure and airborne equipment.

4. Oil and Gas Industry

In the oil and gas industry, lightning protection is essential for preventing fires and explosions in refineries and storage facilities. Systems like DAS are often used to minimize the risk of lightning-induced incidents.

5. Data Centers

Data centers rely on lightning protection to prevent power surges and data loss. Systems are designed to protect both the building and the sensitive electronic equipment housed within, ensuring uninterrupted service and data integrity.