Signal Surge Protector / Power Surge Module

The lightning protection device is mainly composed of the following three parts:

One, surge protectorIncluding lightning rods, lightning wires, lightning mesh, lightning strips, and lightning arresters, these are the metallic parts that directly receive the lightning strike.

• Lightning RodGenerally installed at the top of high-rise buildings and chimneys, it utilizes the principle of尖端discharge to prevent direct lightning strikes at the installation location. It is typically mounted on frameworks, pillars, or buildings, with its lower end welded to the grounding device via a down conductor.

• Lightning RodCommonly used to be installed on high-voltage overhead transmission lines to protect the overhead lines from direct lightning strikes, and can also be used to protect longer single-story buildings. Since the lightning protection wire is both overhead and grounded, it is also known as overhead ground wire.

• Lightning Rod Mesh and Lightning Rod StripCommonly used to protect buildings from direct lightning strikes and induced lightning. The lightning rod strips are typically installed around the roof, elevated 100mm above the roof surface.150mm, supports 1m card spacing1.5 meters. The lightning rod mesh, in addition to being installed around the roof perimeter, should also be connected into a grid with round or flat steel bars across the roof surface when necessary.

• Surge protectorThe lightning arrester is a protective device against overvoltage caused by lightning strikes, installed at the input end of the protected equipment. Its upper end is connected to overhead transmission lines, and the lower end is grounded. The lightning arrester is primarily used to protect electrical equipment and is a specialized lightning protection device. Among them, the valve-type lightning arrester is a commonly used lightning protection device for transformers and distribution equipment; the tube-type lightning arrester is generally used on transmission lines; the protection gap is a simple and economical lightning protection device, also known as a simple lightning arrester, usually installed at the entry point of the line to protect meters and other equipment.

  Append Downstream LineThe middle section of the lightning protection device connects the air terminal above and the grounding device below. Typically installed on the exterior wall of buildings, it is grounded through a short circuit. Each building usually has at least two down conductors. The down conductors are metallic conductors connecting the air terminal to the grounding device, commonly made of round or flat steel, with round steel being preferred. The diameter of the round steel should not be less than 8mm, and the cross-section of the flat steel should not be less than 12mm x 4mm. The down conductors should be laid along the exterior walls of buildings and structures, and grounded through the shortest path. When concealed, the cross-section should be increased by one level, i.e., the diameter of the round steel should not be less than 10mm, and the cross-section of the flat steel should not be less than 20mm x 4mm. Metal components of buildings and structures, such as fire ladders and steel columns, can also serve as down conductors, but the electrical pathways between their parts should be connected. The down conductors must meet the requirements for mechanical strength, corrosion resistance, and thermal stability.

  Grounding EquipmentIncluding the grounding wires and grounding bodies embedded underground, in soils with strong corrosiveness, anti-corrosion measures such as galvanizing should be taken or the cross-section should be increased. The grounding system is an essential part of the lightning protection system, discharging lightning currents into the earth, and limiting the ground voltage of the lightning protection system to prevent it from being too high. In addition to independent lightning rods, as long as the grounding resistance meets the requirements, the lightning protection grounding system can be shared with other grounding systems. Generally, galvanized round bars, angle irons, flat steels, etc., are connected to form horizontal grounding loops, grounding strips, or vertical grounding rods, buried at a certain depth in wet soil. The reinforced concrete foundation of modern buildings can also serve as a grounding system.