Standard grounding for LED screens

1. There are three wiring terminals at the power input end of the LED screen, namely the live wire terminal, the neutral wire terminal and the ground terminal. The correct grounding method is to connect all the ground wire power terminals in series, lock the ground with a special yellow-green two-color wire, and then lead out and connect to the ground terminal.

2. If there is no ground terminal on site, it can be connected to iron water pipe or iron sewage pipe and other pipes with good contact with the ground. In order to ensure the good contact of the LED screen, the terminal should be soldered on this natural grounding body, and then the ground wire should be locked on the terminal, no bundled connection is allowed. However, gas and other flammable and explosive pipes shall not be used. Or bury the grounding body on site.

3. The grounding body can be made of angle steel or steel pipe, buried horizontally or vertically in the ground as a simple grounding point, and the grounding point should be selected in a remote place to avoid pedestrians or vehicles from damaging the grounding body.

4. When we are grounded, the grounding resistance must be less than 4 ohms to ensure that the leakage current can be discharged in time. It should be noted that due to the diffusion of ground current, it takes a certain time for the lightning protection ground terminal to discharge the lightning current, which will cause the ground potential to rise in a short time. If the LED display screen is connected to the lightning protection ground terminal, the ground potential is higher than the display screen, and the lightning current will be transmitted to the display screen along the ground wire, causing equipment damage. Therefore, the protective grounding of the LED screen must not be connected to the lightning protection grounding terminal, and the protective grounding terminal must be more than 20 meters away from the lightning protection grounding terminal. Prevent ground potential counterattack. Enbon