A manufacturer of signal surge protectors explains how to select a DC power surge arrester and a signal DC surge protector.
发布时间：
2022-04-20
Surge Protective Device Manufacturer: Functional Features of DC Power Surge Arresters: DC power surge arresters are typically used for overvoltage protection in low-voltage power supply systems, safeguarding equipment from damage caused by induced overvoltages, switching overvoltages, and electrostatic discharges. These devices offer advantages such as multi-stage protection, high current handling capacity, low clamping voltage, and fast response time.
A manufacturer of signal surge protectors explains how to select a DC power surge arrester and a signal DC surge protector.
Surge Protective Device Manufacturer: Functional Features of DC Power Surge Arresters
DC power surge arresters are typically used for overvoltage protection of signals in low-voltage power supply systems, thereby preventing damage to equipment caused by induced overvoltages, switching overvoltages, and electrostatic discharge. These devices offer several advantages, including multi-stage protection, high current handling capacity, low clamping voltage, and fast response time.
Typically operated at temperatures ranging from −40°C to +70°C, with relative humidity below 95% and atmospheric pressure between 70 and 106 kPa.
Surge Protective Device Manufacturer: Operating Principle of Power Surge Arresters
Surge protectors are typically connected in series at the input end of the equipment to be protected. When power transmission lines are subjected to induced lightning strikes or other transient overvoltage surges, the surge current is diverted to ground through the protective branch of the surge protector, while the output voltage is maintained within the equipment’s allowable voltage range, thereby ensuring the safe operation of the equipment. Signal surge protector manufacturer: Installation instructions for power surge arresters.
1. Prior to connecting the DC power surge arrester to the system, the grounding resistance of the grounding grid shall be inspected and found to comply with the relevant national and enterprise standards.
2. Connect the DC power surge arrester reliably to the front end of the equipment being protected.
3. Connect the grounding lead of the DC power surge arrester to the protective earth busbar using the shortest possible length.
In the information age, electronic and communication devices are becoming increasingly complex and less demanding in terms of environmental conditions; however, lightning phenomena in nature are unavoidable. Lightning can strike electrical equipment, causing transient overvoltages that damage electronic devices and components and may even lead to accidents. The loss of transmitted or stored data, or the failure of a local area network, can result in substantial economic losses. Therefore, it is crucial to select an appropriate DC surge protective device (SPD) for direct-current applications.
Surge Protective Device Manufacturer: How to Choose a DC Surge Protector for Signal Applications?
(1) Select the appropriate signal surge arrester based on the type of equipment being maintained, such as computer network signal surge arresters, video signal surge arresters, control signal surge arresters, and antenna feedline signal surge arresters.
(2) Select surge protective devices (SPDs) with maintenance voltages that match the operating voltage of the equipment; for example, the operating voltages for SPD control signals are typically 5 V, 12 V, or 24 V.
(3) Select surge arresters with different bandwidths based on the equipment’s requirements for arrester insertion loss.
(4) Select surge protectors with appropriate interfaces based on the equipment interface types and metric or imperial specifications; for example, use BNC connectors (JJ/JK) for video signal SPD interfaces, and RJ11 connectors or terminal blocks for communication line SPD interfaces.
That concludes our explanation of how to select DC power surge protectors and DC signal surge arresters. We hope this information proves helpful.
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