p3 rental led screen.LED lightning protection

　　1. Direct lightning strike

　　Direct lightning contains great energy, with lightning with a peak voltage of up to 5000kV flowing into the ground and having great destructive power. It can cause the following three impacts:

　　(1) A huge amount of rich current flows down to the ground within a few microseconds, rapidly raising the ground potential, causing a counterattack accident and endangering personal and equipment safety.

　　(2) Lightning currents generate powerful electromagnetic waves that induce extremely high pulse voltages on power and signal lines.

　　(3) Lightning current flows through electrical equipment, generating extremely high heat, causing fires or explosions.

　　2. Conducted lightning

　　The extremely high voltage generated by distant lightning strikes or electromagnetic induction is transmitted from outdoor power and communication lines to electrical equipment inside the building.

　　3. Induction lightning

　　Frequent discharges between clouds generate powerful electromagnetic waves that cause common mode and differential mode interference, affecting the operation of electrical equipment.

　　4. Switching overvoltage

　　Inductive and capacitive loads in the power supply system can generate high-voltage pulses on the power supply line, such as opening or disconnecting, grounding short circuits, and power line short circuits. The pulse voltage can reach 3 to 5 times the normal voltage, which can seriously damage the equipment. The destructive effect is similar to lightning strikes.

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