[KongchangAI]
Unverified82% confidenceSolutionTime unknown

分级防护标准方案:户外引下线/总箱装一级SPD(泄放大能量)→分箱装二级SPD(降残压)→末端敏感设备用插座式SPD(精细保护),三级配合逐级降低残压,单点防护无法覆盖直击雷

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82%
Confidence
Long-term
Relevance
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