For protect and avoid lightning damage and reduce the losses and series effects, Except to enforce the lightning protection of the building, also must apply high voltage surge suppression for lightning protection, at the power line and at entrance line of signal network.Wenzhou Modern Group manufactured " DFL series power line surge suppression for lightning protection" is a specially designed power line lightning surge over voltage suppressor used for 220V single phase and 380V three phase power supplied electronic equipment.It employed advanced lightning protection technique of world and high quality device for lightning protection and assembled with sophisticated technologies.As the power line is attacked by lightning.The induced huge pulse current and high surge over-voltage at the power line can instantaneously release into earth, therefore the modern electronic equipment has effectively protected from lightning.