Difference between Surge Protector and Lightning Arrester
Although lightning surge protectors and lightning Arrester are both devices used to protect electrical systems, they have some key differences.
The principle of operation is different: lightning surge protectors limit over-voltage mainly through changes in resistance, directing the over-voltage to ground; while lightning arresters release the over-voltage generated by lightning to earth by changing the current path.
The scope of application is different: lightning surge protectors are more suitable for electronic equipment and sensitive electrical equipment, while lightning Arresters are usually used to protect larger structures such as buildings and antenna towers.
Different response speeds: Lightning surge protectors respond relatively quickly, responding to voltage changes within milliseconds; lightning arresters respond relatively slowly, taking some time to release over-voltage.