answer to Roktgr
for Lightning & surge protection it is of value to come back to technical basics
http://engineering.electrical-equipment.org/electrical-distribution/lightning-surge-protection.htmlhttp://engineering.electrical-equipment.org/electrical-distribution/lightning-surge-protection.html
answer to Roktgr
in order to help you about that matter, i will recommand you to read one chapter (chapter J) of the Electrical Installtion Guide written by Schneider experts called protection against voltage surges in LV : it gives practical info about what is it, the devices for protection and...
