What is the difference between Surge protection device and
Lighting arrester?

Answer Posted / panks

Exactly, Lightning Arrestor is used to arrest the lightning
strokes outside of the building areas like switchyards, etc.

Surges means temporarily happening i.e. transient impulses
of suddenly induced lightning strokes, which are for micro
seconds, not for more time.
Surge Suppressor is the Surge Protection device.

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