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Uninterruptible Power Supply (UPS)Uninterruptible Power Supply (UPS)
⚠ ⚠ Top risk: 输入浪涌/电压骤降 · RPN 120 (High) — watch this one first at the equipment
Risk Board (all 12 · by RPN · top 6 highlighted urgent)
Shield: Safety = people/environment　Production = production only
Technical mechanism/mitigation body in Chinese (red line: no fabricated MT; EN UI labels translated)
12Failure Modes
11High/Critical
4Standards
2Real Accidents
Tap any failure mode to flip to its on-site guidance
Device-level standard/accident index (4 standards / 2 accidents)
Standards (4 de-duplicated)
  • IEC 62040-3
  • IEEE 450
  • IEEE 1188
  • IEC 62040-1
Accident Lessons (2 de-duplicated)
NUREG-LER-1997-032-INDIANPOINT3NRC1997 ↗
Indian Point 3 号机 480V 安全母线因 RHR 泵断路器拒动而不可用（1997）
NUREG-LER-1998-002-BROWNSFERRYNRC1998 ↗
Browns Ferry 3 号机 480V 停役盘备用馈线断路器拒合导致母线瞬时失电（1998）
FM Traceability Cards (12)
Generated by Reliability AI
输入浪涌/电压骤降RPN 120 · High
Failure Mechanism
电网扰动损坏前端电路
How to Detect
Online monitoring · Detection rate 80% ；Re-inspect ≤every12months
Mitigation (What to Do)
  • 浪涌保护器检查
RCM Strategy
PMScheduled (Proactive) Maintenance
Interval: High risk 1-3 mo / Medium 6-12 mo / Low risk at turnaround (by API 581 RBI risk ranking)
Engineering-inferred (not measured history); confirm with equipment owner before execution
Standards (1)
  • IEC 62040-3
Lessons Learned (2)
NUREG-LER-1997-032-INDIANPOINT3NRC1997Operational
Indian Point 3 号机 480V 安全母线因 RHR 泵断路器拒动而不可用（1997）
Root cause: 断路器机构关键枢轴连接缺乏润滑导致卡涩拒动；同类 DS-416 断路器存在潜在共因退化
Official source ↗
NUREG-LER-1998-002-BROWNSFERRYNRC1998Operational
Browns Ferry 3 号机 480V 停役盘备用馈线断路器拒合导致母线瞬时失电（1998）
Root cause: 断路器位置开关联动触点被一根错位导线干扰无法正常闭合；根本因为导线布线不当及开关盖板拆装错误
Official source ↗
蓄电池单体容量衰减RPN 112 · High
Failure Mechanism
极板硫酸盐化/活性物质脱落致容量下降
How to Detect
Online monitoring · Detection rate 80% ；Re-inspect ≤every12months
Mitigation (What to Do)
  • 蓄电池内阻/容量测试
  • 均充维护
RCM Strategy
PMScheduled (Proactive) Maintenance
Interval: High risk 1-3 mo / Medium 6-12 mo / Low risk at turnaround (by API 581 RBI risk ranking)
Engineering-inferred (not measured history); confirm with equipment owner before execution
Standards (3)
  • IEEE 450
  • IEEE 1188
  • IEC 62040-1
Lessons Learned (2)
NUREG-LER-1997-032-INDIANPOINT3NRC1997Operational
Indian Point 3 号机 480V 安全母线因 RHR 泵断路器拒动而不可用（1997）
Root cause: 断路器机构关键枢轴连接缺乏润滑导致卡涩拒动；同类 DS-416 断路器存在潜在共因退化
Official source ↗
NUREG-LER-1998-002-BROWNSFERRYNRC1998Operational
Browns Ferry 3 号机 480V 停役盘备用馈线断路器拒合导致母线瞬时失电（1998）
Root cause: 断路器位置开关联动触点被一根错位导线干扰无法正常闭合；根本因为导线布线不当及开关盖板拆装错误
Official source ↗
手动/自动旁路故障RPN 105 · High
Failure Mechanism
维护旁路接触器故障致无法隔离
How to Detect
Online monitoring · Detection rate 80% ；Re-inspect ≤every24months
Mitigation (What to Do)
  • 旁路接触器测试
RCM Strategy
PMScheduled (Proactive) Maintenance
Interval: High risk 1-3 mo / Medium 6-12 mo / Low risk at turnaround (by API 581 RBI risk ranking)
Engineering-inferred (not measured history); confirm with equipment owner before execution
Standards (1)
  • IEC 62040-3
Lessons Learned (2)
NUREG-LER-1997-032-INDIANPOINT3NRC1997Operational
Indian Point 3 号机 480V 安全母线因 RHR 泵断路器拒动而不可用（1997）
Root cause: 断路器机构关键枢轴连接缺乏润滑导致卡涩拒动；同类 DS-416 断路器存在潜在共因退化
Official source ↗
NUREG-LER-1998-002-BROWNSFERRYNRC1998Operational
Browns Ferry 3 号机 480V 停役盘备用馈线断路器拒合导致母线瞬时失电（1998）
Root cause: 断路器位置开关联动触点被一根错位导线干扰无法正常闭合；根本因为导线布线不当及开关盖板拆装错误
Official source ↗
逆变器故障RPN 96 · Critical
Failure Mechanism
IGBT/驱动电路失效致无输出
How to Detect
Online monitoring · Detection rate 80% ；Re-inspect ≤every24months
Mitigation (What to Do)
  • IGBT 温度监测
  • 模块轮换
RCM Strategy
CBMOn-Condition Maintenance
Interval: High risk 1-3 mo / Medium 6-12 mo / Low risk at turnaround (by API 581 RBI risk ranking)
Engineering-inferred (not measured history); confirm with equipment owner before execution
Standards (2)
  • IEC 62040-1
  • IEC 62040-3
Lessons Learned (2)
NUREG-LER-1997-032-INDIANPOINT3NRC1997Operational
Indian Point 3 号机 480V 安全母线因 RHR 泵断路器拒动而不可用（1997）
Root cause: 断路器机构关键枢轴连接缺乏润滑导致卡涩拒动；同类 DS-416 断路器存在潜在共因退化
Official source ↗
NUREG-LER-1998-002-BROWNSFERRYNRC1998Operational
Browns Ferry 3 号机 480V 停役盘备用馈线断路器拒合导致母线瞬时失电（1998）
Root cause: 断路器位置开关联动触点被一根错位导线干扰无法正常闭合；根本因为导线布线不当及开关盖板拆装错误
Official source ↗
静态开关失效RPN 96 · Critical
Failure Mechanism
旁路切换失败致负载断电
How to Detect
Online monitoring · Detection rate 80% ；Re-inspect ≤every24months
Mitigation (What to Do)
  • 静态开关动作测试
RCM Strategy
PMScheduled (Proactive) Maintenance
Interval: High risk 1-3 mo / Medium 6-12 mo / Low risk at turnaround (by API 581 RBI risk ranking)
Engineering-inferred (not measured history); confirm with equipment owner before execution
Standards (1)
  • IEC 62040-3
Lessons Learned (2)
NUREG-LER-1997-032-INDIANPOINT3NRC1997Operational
Indian Point 3 号机 480V 安全母线因 RHR 泵断路器拒动而不可用（1997）
Root cause: 断路器机构关键枢轴连接缺乏润滑导致卡涩拒动；同类 DS-416 断路器存在潜在共因退化
Official source ↗
NUREG-LER-1998-002-BROWNSFERRYNRC1998Operational
Browns Ferry 3 号机 480V 停役盘备用馈线断路器拒合导致母线瞬时失电（1998）
Root cause: 断路器位置开关联动触点被一根错位导线干扰无法正常闭合；根本因为导线布线不当及开关盖板拆装错误
Official source ↗
冷却风扇失效RPN 96 · High
Failure Mechanism
风扇停转致功率模块过温
How to Detect
Online monitoring · Detection rate 80% ；Re-inspect ≤every24months
Mitigation (What to Do)
  • 风扇状态监测
  • 备件轮换
RCM Strategy
CBMOn-Condition Maintenance
Interval: High risk 1-3 mo / Medium 6-12 mo / Low risk at turnaround (by API 581 RBI risk ranking)
Engineering-inferred (not measured history); confirm with equipment owner before execution
Standards (1)
  • IEC 62040-1
Lessons Learned (2)
NUREG-LER-1997-032-INDIANPOINT3NRC1997Operational
Indian Point 3 号机 480V 安全母线因 RHR 泵断路器拒动而不可用（1997）
Root cause: 断路器机构关键枢轴连接缺乏润滑导致卡涩拒动；同类 DS-416 断路器存在潜在共因退化
Official source ↗
NUREG-LER-1998-002-BROWNSFERRYNRC1998Operational
Browns Ferry 3 号机 480V 停役盘备用馈线断路器拒合导致母线瞬时失电（1998）
Root cause: 断路器位置开关联动触点被一根错位导线干扰无法正常闭合；根本因为导线布线不当及开关盖板拆装错误
Official source ↗
蓄电池后备时间不足RPN 96 · Critical
Failure Mechanism
整组容量低于阈值致支撑时间不足
How to Detect
Online monitoring · Detection rate 80% ；Re-inspect ≤every24months
Mitigation (What to Do)
  • 整组放电试验
RCM Strategy
PMScheduled (Proactive) Maintenance
Interval: High risk 1-3 mo / Medium 6-12 mo / Low risk at turnaround (by API 581 RBI risk ranking)
Engineering-inferred (not measured history); confirm with equipment owner before execution
Standards (2)
  • IEEE 450
  • IEEE 1188
Lessons Learned (2)
NUREG-LER-1997-032-INDIANPOINT3NRC1997Operational
Indian Point 3 号机 480V 安全母线因 RHR 泵断路器拒动而不可用（1997）
Root cause: 断路器机构关键枢轴连接缺乏润滑导致卡涩拒动；同类 DS-416 断路器存在潜在共因退化
Official source ↗
NUREG-LER-1998-002-BROWNSFERRYNRC1998Operational
Browns Ferry 3 号机 480V 停役盘备用馈线断路器拒合导致母线瞬时失电（1998）
Root cause: 断路器位置开关联动触点被一根错位导线干扰无法正常闭合；根本因为导线布线不当及开关盖板拆装错误
Official source ↗
整流器故障RPN 84 · High
Failure Mechanism
输入整流桥/可控硅失效
How to Detect
Online monitoring · Detection rate 80% ；Re-inspect ≤every24months
Mitigation (What to Do)
  • 整流模块巡检
RCM Strategy
PMScheduled (Proactive) Maintenance
Interval: High risk 1-3 mo / Medium 6-12 mo / Low risk at turnaround (by API 581 RBI risk ranking)
Engineering-inferred (not measured history); confirm with equipment owner before execution
Standards (1)
  • IEC 62040-1
Lessons Learned (2)
NUREG-LER-1997-032-INDIANPOINT3NRC1997Operational
Indian Point 3 号机 480V 安全母线因 RHR 泵断路器拒动而不可用（1997）
Root cause: 断路器机构关键枢轴连接缺乏润滑导致卡涩拒动；同类 DS-416 断路器存在潜在共因退化
Official source ↗
NUREG-LER-1998-002-BROWNSFERRYNRC1998Operational
Browns Ferry 3 号机 480V 停役盘备用馈线断路器拒合导致母线瞬时失电（1998）
Root cause: 断路器位置开关联动触点被一根错位导线干扰无法正常闭合；根本因为导线布线不当及开关盖板拆装错误
Official source ↗
控制板/固件故障RPN 84 · High
Failure Mechanism
控制器死机或固件异常
How to Detect
Online monitoring · Detection rate 80% ；Re-inspect ≤every24months
Mitigation (What to Do)
  • 固件版本管理
  • 控制板冗余
RCM Strategy
PMScheduled (Proactive) Maintenance
Interval: High risk 1-3 mo / Medium 6-12 mo / Low risk at turnaround (by API 581 RBI risk ranking)
Engineering-inferred (not measured history); confirm with equipment owner before execution
Standards (1)
  • IEC 62040-1
Lessons Learned (2)
NUREG-LER-1997-032-INDIANPOINT3NRC1997Operational
Indian Point 3 号机 480V 安全母线因 RHR 泵断路器拒动而不可用（1997）
Root cause: 断路器机构关键枢轴连接缺乏润滑导致卡涩拒动；同类 DS-416 断路器存在潜在共因退化
Official source ↗
NUREG-LER-1998-002-BROWNSFERRYNRC1998Operational
Browns Ferry 3 号机 480V 停役盘备用馈线断路器拒合导致母线瞬时失电（1998）
Root cause: 断路器位置开关联动触点被一根错位导线干扰无法正常闭合；根本因为导线布线不当及开关盖板拆装错误
Official source ↗
输出过载跳闸RPN 84 · High
Failure Mechanism
负载超额定容量致保护跳闸
How to Detect
Online monitoring · Detection rate 80% ；Re-inspect ≤every24months
Mitigation (What to Do)
  • 负载核算
  • 容量管理
RCM Strategy
CBMOn-Condition Maintenance
Interval: High risk 1-3 mo / Medium 6-12 mo / Low risk at turnaround (by API 581 RBI risk ranking)
Engineering-inferred (not measured history); confirm with equipment owner before execution
Standards (1)
  • IEC 62040-1
Lessons Learned (2)
NUREG-LER-1997-032-INDIANPOINT3NRC1997Operational
Indian Point 3 号机 480V 安全母线因 RHR 泵断路器拒动而不可用（1997）
Root cause: 断路器机构关键枢轴连接缺乏润滑导致卡涩拒动；同类 DS-416 断路器存在潜在共因退化
Official source ↗
NUREG-LER-1998-002-BROWNSFERRYNRC1998Operational
Browns Ferry 3 号机 480V 停役盘备用馈线断路器拒合导致母线瞬时失电（1998）
Root cause: 断路器位置开关联动触点被一根错位导线干扰无法正常闭合；根本因为导线布线不当及开关盖板拆装错误
Official source ↗
通信中断RPN 75 · Medium
Failure Mechanism
监控模块掉线失去告警
How to Detect
Online monitoring · Detection rate 80% ；Re-inspect ≤every24months
Mitigation (What to Do)
  • 通信冗余
RCM Strategy
PMScheduled (Proactive) Maintenance
Interval: High risk 1-3 mo / Medium 6-12 mo / Low risk at turnaround (by API 581 RBI risk ranking)
Engineering-inferred (not measured history); confirm with equipment owner before execution
Standards (1)
  • IEC 62040-1
Lessons Learned (2)
NUREG-LER-1997-032-INDIANPOINT3NRC1997Operational
Indian Point 3 号机 480V 安全母线因 RHR 泵断路器拒动而不可用（1997）
Root cause: 断路器机构关键枢轴连接缺乏润滑导致卡涩拒动；同类 DS-416 断路器存在潜在共因退化
Official source ↗
NUREG-LER-1998-002-BROWNSFERRYNRC1998Operational
Browns Ferry 3 号机 480V 停役盘备用馈线断路器拒合导致母线瞬时失电（1998）
Root cause: 断路器位置开关联动触点被一根错位导线干扰无法正常闭合；根本因为导线布线不当及开关盖板拆装错误
Official source ↗
蓄电池热失控RPN 64 · Critical
Failure Mechanism
VRLA 过充或散热不良致温升失控
How to Detect
Online monitoring · Detection rate 80% ；Interval by RBI
Mitigation (What to Do)
  • 充电电压整定
  • 温度监测
RCM Strategy
PMScheduled (Proactive) Maintenance
Interval: High risk 1-3 mo / Medium 6-12 mo / Low risk at turnaround (by API 581 RBI risk ranking)
Engineering-inferred (not measured history); confirm with equipment owner before execution
Standards (2)
  • IEEE 1188
  • IEC 62040-1
Lessons Learned (2)
NUREG-LER-1997-032-INDIANPOINT3NRC1997Operational
Indian Point 3 号机 480V 安全母线因 RHR 泵断路器拒动而不可用（1997）
Root cause: 断路器机构关键枢轴连接缺乏润滑导致卡涩拒动；同类 DS-416 断路器存在潜在共因退化
Official source ↗
NUREG-LER-1998-002-BROWNSFERRYNRC1998Operational
Browns Ferry 3 号机 480V 停役盘备用馈线断路器拒合导致母线瞬时失电（1998）
Root cause: 断路器位置开关联动触点被一根错位导线干扰无法正常闭合；根本因为导线布线不当及开关盖板拆装错误
Official source ↗