Difference between Switching Surge and Lightning Impulse:

The difference between Switching Surge and Lightning Impulse is given below

Switching Surge – It is due to opening and closing of electrical equipments or repeated restriking of the are between the contacts.

Lightning Impulse – The impulse transient wave due to lightning. It is a unidirectional which reaches its peak in 1.2 μsec and slowly falls to zero in 50 μsec.

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