Standard Grounding Methods for LED Screens

There are often customers who use the wrong grounding method to ground the LED screen. Common ones are:
1. It is considered that the lower end of the column of the outdoor column structure is connected to the ground, and the display screen does not need to be grounded.
2. It is considered that the power supply is locked on the box body, and the box body and the structure are connected through the lock, so the grounding of the structure means that the power supply is also grounded.

Both methods are flawed. Our columns are connected with anchor bolts, which are buried in the concrete. Concrete resistance is in the range of 100-500. If the grounding resistance is too high, the leakage current will not be discharged in time or will remain. The surface of our box is sprayed with paint. Paint is a bad conductor, which will lead to poor contact between the box and the ground or increase the grounding resistance, and may cause electrical sparks to interfere with the screen signal. Over time, the surface of the box or structure will oxidize and rust, and fasteners such as screws will gradually loosen due to thermal expansion and temperature difference contraction. The grounding effect of the LED screen structure will weaken or even completely fail. create a safety hazard. Lead to leakage, electric shock, chip interference and other safety accidents. Enbon