2 What is an fault arc - Die BG ETEM
2 What is an fault arc - Die BG ETEM
2 What is an fault arc - Die BG ETEM
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Summary of Symbols<br />
UrN = Un V Power system rated voltage<br />
W<strong>arc</strong> = WLB kJ Electric <strong>arc</strong> energy<br />
W<strong>arc</strong>P = WLBP kJ Arc energy of <strong>arc</strong> flash protection class, test level<br />
Wprot kJ Equivalent <strong>arc</strong> energy, protection level<br />
X Ohm React<strong>an</strong>ce (of the network imped<strong>an</strong>ce)<br />
Influence parameter<br />
xi<br />
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