With the development of the security industry, network, intelligence, and high-definition are the direction of development in this industry. In recent years, the use of PoE switches has continued to increase in the security industry, and their status has become higher and higher. However, lightning often causes damage caused by instant overvoltages on power lines, signal lines, and antenna feed lines. Therefore, it must be Take appropriate protective measures to avoid damage to the transmission lines, communications equipment and personnel caused by overvoltage and overcurrent generated by it.
To form effective protective measures, we must follow the principle of "integral defense, comprehensive management, and multiple protections" to minimize lightning hazards. In general, defensive measures include:
1. External protection: Use lightning rods (lightning strips, lightning protection nets and lightning conductors) and grounding devices (grounding lines, grounding poles);
2. Internal protection: The power supply part adopts high-voltage lightning protection devices, lightning arresters, etc.; the equipment end uses detonators, TVS diodes, grounding leads, grounding posts, etc. to enhance the lightning protection characteristics of the equipment;
No matter what kind of protection method, the purpose is to apply the shunting technology to divert the lightning overvoltage pulse energy diversion to the earth, so as to achieve the purpose of protection. The quality of the protector used in the diversion technology, the performance is good or bad will directly affect the protective effect.
To form effective protective measures, we must follow the principle of "integral defense, comprehensive management, and multiple protections" to minimize lightning hazards. In general, defensive measures include:
1. External protection: Use lightning rods (lightning strips, lightning protection nets and lightning conductors) and grounding devices (grounding lines, grounding poles);
2. Internal protection: The power supply part adopts high-voltage lightning protection devices, lightning arresters, etc.; the equipment end uses detonators, TVS diodes, grounding leads, grounding posts, etc. to enhance the lightning protection characteristics of the equipment;
No matter what kind of protection method, the purpose is to apply the shunting technology to divert the lightning overvoltage pulse energy diversion to the earth, so as to achieve the purpose of protection. The quality of the protector used in the diversion technology, the performance is good or bad will directly affect the protective effect.
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