[KongchangAI]
Unverified85% confidenceDecision RuleTime unknown

看标称放电电流In和最大放电电流Imax:家用二级保护Imax≥40kA基本够用,多雷区或有精密设备建议Imax≥60kA。Imax过小(如20kA)在强雷击下可能一次性损坏失效

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