One, the nature of different
1, surge: is an instantaneous peak beyond the stable value, which includes surge voltage and surge current.
2, lightning strikes: lightning current through people, animals, trees, buildings, etc. and cause death or destruction.
Two, the formation of different causes
1, surge: a violent pulse that occurs in just a few millionths of a second. Possible causes of surge: heavy equipment, short circuit, power switching or large engines.
2, lightning strikes: a part of the charged clouds and another part of the cloud with a different charge, or a charged cloud to the earth between the rapid discharge.
Three, the characteristics of different
1, surge: products containing surge blocking device can effectively absorb the sudden huge energy to protect the connected equipment from damage.
2, lightning: rapid discharge process produces strong lightning and accompanied by a loud sound; lightning occurs when the charge is usually generated, the bottom layer of negative electricity, the top layer of positive electricity, but also in the ground to produce a positive charge, such as the shadow of the cloud to follow the movement. The positive and negative charges are attracted to each other, but air is not a good conductor.
Baidu Encyclopedia - Surge
Baidu Encyclopedia - Lightning Strike