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Data center power, cooling, water and fire: power distribution, cooling, environment monitoring, fire safety and operations

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All directionsPower distribution 87HVAC and cooling 106Environment monitoring 7Fire and safety 8Facilities and infrastructure 47Operations 14

Basics

  • HVAC and coolingUnited States

    机房温湿度：ASHRAE TC9.9 推荐区间与允许区间

    • 推荐区间（A1–A4 类设备）：进风干球温度 18–27℃，露点不高于 15℃、相对湿度不高于 60%。
    • 允许区间按设备等级放宽：A1 为 15–32℃、相对湿度上限 80%，A4 可到 5–45℃。
    • 推荐区间是建议而非强制，适当提高送风温度、延长自然冷却时间是降低 PUE 的常用做法。
    SourcesASHRAE 第 5 版参考卡（PDF）ashrae.orgUpsite 解读upsite.com

Technical articles

All typesTechnical analysis 74Incident reviews 8Field experience 31Standards 5Equipment and technology 81Trend research 70
All countriesUnited States 153China 87Germany 4United Kingdom 3Japan 2Italy 2France 2Singapore 2Canada 2Finland 1India 1South Korea 1罗马尼亚 1Denmark 1Norway 1Netherlands 1
  • 2026-11-02暖通与制冷Technical analysisFinland

    液冷时代数据中心关键运维测量指标与防结露控制要点

    • 直接芯片液冷不仅要监测液温、压力、流量与液位，还需实时监测pH值、浊度、电导率和折射率等冷却液健康指标及漏液情况。
    • 防结露控制中，通用做法是将冷却液供液温度维持在实测环境露点以上至少2℃，需CDU结合连续精准的露点监测动态调节。
    • AI负载在空闲与满载间数分钟内的剧烈波动，要求CDU必须依赖无延迟的实时传感器数据，闭环调控供回水温、压力及流量。
    SourcesData Center Knowledgedatacenterknowledge.com

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