Signal Surge Protector Installation And Performance Characteristics
Signal surge protectors can be divided into network signal surge protectors, video signal surge protectors, audio signal surge protectors and other types according to the types of protected lines.
Performance characteristics of signal surge protection device:
1. Large current capacity and low residual pressure level;
2. Small insertion loss and fast response time;
3. Adopt multi-level protection circuit with rigorous structure;
4. Stable performance, reliable operation and easy installation and use.
Signal line surge protective device of electronic information systems should be selected according to the operating frequency, transmission rate, transmission bandwidth, operating voltage, interface form and characteristic impedance of the line. Surge protectors with small insertion loss, small distributed capacitance, and compatible with longitudinal balance and near-end serial port interference indicators. Uc should be greater than 1.2 times the maximum operating voltage on the line, and Up should be lower than the impact voltage rating Uw of the protected equipment.
In GB/T 50343-2012, 6.5.3 standard definition:
The installation of signal line surge protectors shall comply with the following provisions:
1. The signal line surge protector shall be connected to the signal port of the protected equipment. The surge protector can be installed in the cabinet or fixed to the equipment rack or nearby supports.
2. The grounding terminal of the signal line surge protector shall be connected to the equipotential connection network of the equipment room with a copper core wire with a cross-sectional area of not less than 1.5mm2, and the grounding wire shall be short and straight.
