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Lighting Protection

Lightning protection is a branch of electrical engineering that specializes in preventing the passage of lightning through structures and devices. Lightning is incredibly powerful, and it can wreak havoc on unprotected structures and electronic equipment. It is estimated that lightning strikes cause more than $1 billion in damage each year in the U.S. alone. Fortunately, it is possible to protect structures and equipment from lightning-related damage with the help of lightning protection systems.

BSP3-480-20K Application Field and Working Principle

BSP3-480-20K is a type of lightning protection device that is widely used in industrial and commercial buildings, residences, and other buildings. It is designed to provide protection from the effects of lightning strikes, as well as other electrical hazards. Its primary function is to act as a surge diverter or shunt, sending excess energy away from the protected equipment. It does this by intercepting an incoming surge, diverting it away from the equipment, and then passing it into the earth during the next lightning discharge.

The BSP3-480-20K is a three-stage surge device that can withstand multiple impulses of up to 20,000 amperes. It has a gap system with three sequential gaps, each rated at 90V/m, 480V, and 1KV respectively. When the gap voltage exceeds its rated value, the spark gap will break down, resulting in the discharge of the surge current. The energy is then dissipated to ground via a series of resistors.

In order for the BSP3-480-20K to be effective, it should be connected to an Earth electrode, which is a metal rod driven into the ground, and also connected to a grounding system. This grounding system serves as a pathway for the energy released from the lightning strike to dissipate and spread out in the soil. The distance between the ground and the grounding electrode should not be greater than 15 meters for safety.

When a lightning strike occurs, the BSP3-480-20K works to protect the equipment. The three gaps absorb the excess energy, preventing it from reaching the equipment. If the gap is particularly large, the gap will break down and divert the energy to the ground. This process is known as shunting, and it prevents the energy from damaging the equipment.

In addition, the BSP3-480-20K also helps to protect the equipment from transient voltage surges and electrical noise. It acts as a voltage filter, reducing the voltage to a safe level before it enters the equipment or the structure. This eliminates the risk of an electrical overload that can damage the equipment.

The BSP3-480-20K is a great way to protect equipment and structures from lightning-related damage. By diverting excess energy, mitigating voltage surges, and reducing electrical noise, it provides an effective and reliable layer of protection. It is also cost-effective, and it is easy to install and maintain.

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