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    <description>供电、制冷、消防、监控四条主线讲全数据中心基础设施：从电网到芯片的供电链路、PUE 与液冷趋势、气体灭火联动逻辑与 DCIM 工具，并给出新人学习路径。</description>
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    <title>接地线上的电流从哪里来？一次完整的排查复盘</title>
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    <description>接地扁铁上测到 3.8A 电流的完整排查复盘：N-PE 错接、EMI 泄漏、双电源环流、绝缘劣化四类来源的判读方法、分路定位过程与整改结果。</description>
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    <title>零地电压过高会烧坏服务器吗？把这个说法讲清楚</title>
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    <description>零地电压&quot;小于 1V 否则烧服务器&quot;缺乏机理支撑：IT 电源输入不在 N-PE 功率路径上。但它是配电健康指标——超标应查 N 线电流、三相平衡与接地系统。</description>
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