The invention discloses a same-time-sequence multi-pulse
lightning protection box. The same-time-sequence multi-pulse
lightning protection box comprises a
lightning protection module, a sampling circuit, a detection circuit and a display panel which are connected in sequence, wherein the sampling circuit comprises an EMC (
Electro Magnetic Compatibility) strong
electromagnetism restraining circuit, a
signal acquisition circuit and a strong
electromagnetism isolating restraining circuit. When a low-
voltage power supply circuit is subjected to lightning
electromagnetic pulse impact, a
lightning overvoltage signal is generated on the low-
voltage power supply circuit and is applied to the lightning protection module, the lightning protection module is used for transmitting one path of the
lightning overvoltage signal to the EMC strong
electromagnetism restraining circuit, and the other path of the
lightning overvoltage signal is connected with a PE (
Provider Edge) end, so that lightning is conducted into the ground; the EMC strong electromagnetism restraining circuit is used for limiting the rising gradient and amplitude of the generated lightning
overvoltage signal and transmitting the processed signal to the
signal acquisition circuit; the
signal acquisition circuit is used for acquiring a signal and transmitting the acquired signal to the strong electromagnetism isolating restraining circuit; and the strong electromagnetism isolating restraining circuit is used for isolating the signal, transmitting the processed signal to the detection circuit, and accurately transmitting the processed signal to the display circuit panel, so that man-
machine information exchange is completed.