CG5470LNF

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Gas Discharge Tube Arresters, or GDTs, are designed to protect electrical equipment, such as lines and circuits, from damage due to excessive voltage in power systems. These protective devices are used in many different applications including lightning protection, surge protection and signal and communications. The CG5470LNF is an example of a Gas Discharge Tube Arrester designed specifically for protection of high-voltage power cables.

The CG5470LNF is made up of two main parts - the GDT itself and the resistive layer. The GDT is made up of a glass tube filled with a low-pressure gas and two lead wires sealing each end. When a surge of voltage hits the tube, the gas ionises and breaks down the electrical resistance allowing a current flow between the two lead wires. This current creates a protective arc in the tube which limits the amount of voltage that can reach the electrical equipment.

The resistive layer, often referred to as the spark gap, is used to limit the amount of current that can pass through the GDT. It consists of two metal strips with an insulating material between them. When the voltage levels reach a certain point, the spark gap breaks down allowing the current to pass through. As the current passes through the spark gap, it dissipates energy which further reduces the voltage making it safe for the protected equipment.

The CG5470LNF is mainly used for the protection of overhead power cables, substations and communication lines from high voltage surges. Its design has been optimised specifically for these applications and is suitable for AC surge protection up to 1kV in double line systems and up to 750V in single line systems. This makes it ideal for use in a range of industrial and commercial installations.

In addition to this, the CG5470LNF has several other features that make it a great choice for surge protection applications. Its low DC resistance helps reduce energy losses, while its compact size and easy installation makes it suitable for applications with limited space. The GDT also has a good reverse blocking capability allowing it to handle high-voltage back-feeding without any damage.

The CG5470LNF is a reliable and cost effective way of protecting electrical systems from high-voltage surges. Its unique design combines the protective properties of the GDT with the voltage regulating capabilities of the spark gap, creating a powerful yet compact surge protection device that can be easily installed in a range of applications.

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