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NPP Voltage S rge NPP Voltage Surge Protection - Working Group ...

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Purpose p of this Talk:<br />

Describe Forsmark and Olkiluoto <strong>NPP</strong> voltage<br />

su<strong>rge</strong> su<strong>rge</strong> events<br />

Describe why such events happened in supposedly<br />

qualified Class 1E Electrical Systems<br />

Suggest gg possible p g gaps p in current philosophy p p y of<br />

<strong>Voltage</strong> Withstand Capability vs <strong>Protection</strong><br />

Suggest possible role for IEEE/IEC to to standardize:<br />

��<strong>NPP</strong> <strong>NPP</strong> <strong>Voltage</strong> Withstand Design Requirements<br />

��Component Component p <strong>Voltage</strong> g<br />

Withstand Qualification

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