Analysis of the problems that video lightning protection device is easy to appear in the lightning protection of monitoring system

- Mar 15, 2021-

Video lightning protection devices are indispensable lightning protection equipment in the lightning protection of the monitoring system. Some problems sometimes occur during installation. Only by solving these problems can the monitoring system be better protected.

First, How to install the video lightning protection device:

1. The lightning protection device is connected in series between the protected equipment and the signal channel;

2. The input (IN) of the lightning arrester is connected to the signal channel, and the output (OUT) is connected to the protected equipment and installed close to the protected equipment, and cannot be reversed;

3. Reliably connect the ground wire of the lightning protection device to the ground bar of the lightning protection system, the shorter the wiring, the better

Second, the problems that video lightning protectors are prone to appear in the lightning protection of surveillance systems:

1. There is no image after installing the lightning protection device

1) The camera gun itself has no video signal output.

2) The power supply of the camera gun is damaged or the power cord is off.

3) The video cable of the camera gun is broken.

4) The BNC head of the video lightning protection device is disengaged.

5) The video lightning protection device used is unqualified.

2. The image quality is unclear after installing the video lightning protection device

Unqualified lightning protection products may be installed. Video signal lightning protection devices generally have strict insertion loss control, generally ≤0.5dB. If the insertion loss is too large, it will affect the video quality, so when choosing a video lightning protection device Select qualified products.