Application Of Surge Arresters In Analog Video Transmission In Coaxial Signal Systems

In systems using coaxial cables to transmit analog video signals (such as CVBS signals), the cable itself can become a pathway for lightning strikes or overvoltage surges. Introducing an 15kv lightning arrester into the signal line can redirect potential overvoltages into the system to ground during high transient voltage events, thus protecting downstream equipment and the entire signal link.

When used in signal transmission lines, the structure and application areas of lightning arrester in transformer differ from those of traditional power lines. The high voltage lightning arrester for coaxial cables is typically designed as an inline (series) device, compatible with 75Ω or 50Ω systems, and suitable for connections such as television, CCTV, or satellite antennas.

When installed in analog video systems, the 33kv lightning arrester is placed between the external antenna or camera and the receiving/processing equipment. When the coaxial cable extends from outdoors to indoors, the 10 kv lightning arrester can release abnormally high voltages before lightning or surges enter the system through the coaxial cable, thus preventing damage to signal equipment, extending system life, and improving system stability.