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Surge arresters discharge class

Surge arresters discharge class

Surge arresters discharge class

(OP)
Hello,
What is the difference between
10000A line discharge class 1 and a
10000A line discharge class 2 arrester?

I have to know this to choose what operating duty tests I have to do.

Greetings from Ghent
Benjamin

RE: Surge arresters discharge class

(OP)
Sorry, found it... table 1 of the ABB file :)
class 1: Diameter of blocks 38 mm
class 2: 47 mm

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