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1.what is surge used in power system
2.what is switching used in power system
3.what is lightning used in power system



1.what is surge used in power system 2.what is switching used in power system 3.what is lightning ..

Answer / zala

switching 2500/1.2 micro.sec
surge 250/15 micro sec.
lighting 50/1.2 micro sec.

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