Tap any failure mode → flip to its on-site guidance (pure-CSS, no JS needed on mobile)
Emergency Diesel Generator (EDG)Emergency Diesel Generator (EDG)
⚠ ⚠ Top risk: 排气阻塞 · 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
12High/Critical
3Standards
2Real Accidents
Tap any failure mode to flip to its on-site guidance
Device-level standard/accident index (3 standards / 2 accidents)
Standards (3 de-duplicated)
  • ISO 8528-1
  • NFPA 110
  • ISO 8528-5
Accident Lessons (2 de-duplicated)
NUREG-IN-94-51NRC1994 ↗
NRC 信息公告 94-51：双密封电机轴承不当加脂导致启动失败（1994，North Anna）
NUREG-LER-2006-004-FERMI2NRC2006 ↗
Fermi 2 应急柴油发电机(EDG)因控制电源变压器选型偏小整体不可用（2006）
FM Traceability Cards (12)
Generated by Reliability AI
排气阻塞RPN 120 · High
Failure Mechanism
消音器/排气管堵塞致背压升高
How to Detect
Online monitoring · Detection rate 80% ；Re-inspect ≤every12months
Mitigation (What to Do)
  • 排气系统检查
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)
  • ISO 8528-1
Lessons Learned (2)
NUREG-IN-94-51NRC1994Operational
NRC 信息公告 94-51：双密封电机轴承不当加脂导致启动失败（1994，North Anna）
Root cause: 双密封轴承本不需加脂，但自 1986 年起每 18 个月加脂，旧脂充满轴承腔；低温下脂硬化致启动负载异常升高
Official source ↗
NUREG-LER-2006-004-FERMI2NRC2006Operational
Fermi 2 应急柴油发电机(EDG)因控制电源变压器选型偏小整体不可用（2006）
Root cause: 1998 年 MCC 改造设计错误，未核算替换接触器涌流对控制电源变压器选型的影响；Extent-of-condition 还发现 EDG 机房通风风机同隐患
Official source ↗
冷却系统失效RPN 112 · High
Failure Mechanism
水泵/节温器/散热器故障致过温
How to Detect
Online monitoring · Detection rate 80% ；Re-inspect ≤every12months
Mitigation (What to Do)
  • 冷却液检查
  • 水泵维护
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)
  • ISO 8528-1
  • NFPA 110
Lessons Learned (2)
NUREG-IN-94-51NRC1994Operational
NRC 信息公告 94-51：双密封电机轴承不当加脂导致启动失败（1994，North Anna）
Root cause: 双密封轴承本不需加脂，但自 1986 年起每 18 个月加脂，旧脂充满轴承腔；低温下脂硬化致启动负载异常升高
Official source ↗
NUREG-LER-2006-004-FERMI2NRC2006Operational
Fermi 2 应急柴油发电机(EDG)因控制电源变压器选型偏小整体不可用（2006）
Root cause: 1998 年 MCC 改造设计错误，未核算替换接触器涌流对控制电源变压器选型的影响；Extent-of-condition 还发现 EDG 机房通风风机同隐患
Official source ↗
润滑油系统故障RPN 112 · High
Failure Mechanism
油压低或油质劣化致轴瓦损伤
How to Detect
Online monitoring · Detection rate 80% ；Re-inspect ≤every12months
Mitigation (What to Do)
  • 油质分析
  • 油压监测
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)
  • ISO 8528-1
Lessons Learned (2)
NUREG-IN-94-51NRC1994Operational
NRC 信息公告 94-51：双密封电机轴承不当加脂导致启动失败（1994，North Anna）
Root cause: 双密封轴承本不需加脂，但自 1986 年起每 18 个月加脂，旧脂充满轴承腔；低温下脂硬化致启动负载异常升高
Official source ↗
NUREG-LER-2006-004-FERMI2NRC2006Operational
Fermi 2 应急柴油发电机(EDG)因控制电源变压器选型偏小整体不可用（2006）
Root cause: 1998 年 MCC 改造设计错误，未核算替换接触器涌流对控制电源变压器选型的影响；Extent-of-condition 还发现 EDG 机房通风风机同隐患
Official source ↗
燃油污染/含水RPN 112 · High
Failure Mechanism
油箱进水或微生物滋生堵塞油路
How to Detect
Online monitoring · Detection rate 80% ；Re-inspect ≤every12months
Mitigation (What to Do)
  • 燃油净化
  • 含水量检测
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)
  • NFPA 110
Lessons Learned (2)
NUREG-IN-94-51NRC1994Operational
NRC 信息公告 94-51：双密封电机轴承不当加脂导致启动失败（1994，North Anna）
Root cause: 双密封轴承本不需加脂，但自 1986 年起每 18 个月加脂，旧脂充满轴承腔；低温下脂硬化致启动负载异常升高
Official source ↗
NUREG-LER-2006-004-FERMI2NRC2006Operational
Fermi 2 应急柴油发电机(EDG)因控制电源变压器选型偏小整体不可用（2006）
Root cause: 1998 年 MCC 改造设计错误，未核算替换接触器涌流对控制电源变压器选型的影响；Extent-of-condition 还发现 EDG 机房通风风机同隐患
Official source ↗
FTSRPN 108 · Critical
Failure Mechanism
启动电池亏电/启动电机故障致无法启动
How to Detect
Online monitoring · Detection rate 80% ；Re-inspect ≤every24months
Mitigation (What to Do)
  • 启动电池维护
  • 启动试验(月度)
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)
  • NFPA 110
  • ISO 8528-1
Lessons Learned (2)
NUREG-IN-94-51NRC1994Operational
NRC 信息公告 94-51：双密封电机轴承不当加脂导致启动失败（1994，North Anna）
Root cause: 双密封轴承本不需加脂，但自 1986 年起每 18 个月加脂，旧脂充满轴承腔；低温下脂硬化致启动负载异常升高
Official source ↗
NUREG-LER-2006-004-FERMI2NRC2006Operational
Fermi 2 应急柴油发电机(EDG)因控制电源变压器选型偏小整体不可用（2006）
Root cause: 1998 年 MCC 改造设计错误，未核算替换接触器涌流对控制电源变压器选型的影响；Extent-of-condition 还发现 EDG 机房通风风机同隐患
Official source ↗
启动蓄电池失效RPN 108 · Critical
Failure Mechanism
电池老化或端子腐蚀致启动无力
How to Detect
Online monitoring · Detection rate 80% ；Re-inspect ≤every24months
Mitigation (What to Do)
  • 电池电压/内阻测试
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)
  • NFPA 110
Lessons Learned (2)
NUREG-IN-94-51NRC1994Operational
NRC 信息公告 94-51：双密封电机轴承不当加脂导致启动失败（1994，North Anna）
Root cause: 双密封轴承本不需加脂，但自 1986 年起每 18 个月加脂，旧脂充满轴承腔；低温下脂硬化致启动负载异常升高
Official source ↗
NUREG-LER-2006-004-FERMI2NRC2006Operational
Fermi 2 应急柴油发电机(EDG)因控制电源变压器选型偏小整体不可用（2006）
Root cause: 1998 年 MCC 改造设计错误，未核算替换接触器涌流对控制电源变压器选型的影响；Extent-of-condition 还发现 EDG 机房通风风机同隐患
Official source ↗
带载失败RPN 96 · Critical
Failure Mechanism
启动后电压/频率不稳无法承接负载
How to Detect
Online monitoring · Detection rate 80% ；Re-inspect ≤every24months
Mitigation (What to Do)
  • 带载试验
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)
  • NFPA 110
  • ISO 8528-5
Lessons Learned (2)
NUREG-IN-94-51NRC1994Operational
NRC 信息公告 94-51：双密封电机轴承不当加脂导致启动失败（1994，North Anna）
Root cause: 双密封轴承本不需加脂，但自 1986 年起每 18 个月加脂，旧脂充满轴承腔；低温下脂硬化致启动负载异常升高
Official source ↗
NUREG-LER-2006-004-FERMI2NRC2006Operational
Fermi 2 应急柴油发电机(EDG)因控制电源变压器选型偏小整体不可用（2006）
Root cause: 1998 年 MCC 改造设计错误，未核算替换接触器涌流对控制电源变压器选型的影响；Extent-of-condition 还发现 EDG 机房通风风机同隐患
Official source ↗
异常振动RPN 96 · High
Failure Mechanism
曲轴/轴承/对中不良致振动大
How to Detect
Online monitoring · Detection rate 80% ；Re-inspect ≤every24months
Mitigation (What to Do)
  • Vibration monitoring
  • 对中复核
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)
  • ISO 8528-1
Lessons Learned (2)
NUREG-IN-94-51NRC1994Operational
NRC 信息公告 94-51：双密封电机轴承不当加脂导致启动失败（1994，North Anna）
Root cause: 双密封轴承本不需加脂，但自 1986 年起每 18 个月加脂，旧脂充满轴承腔；低温下脂硬化致启动负载异常升高
Official source ↗
NUREG-LER-2006-004-FERMI2NRC2006Operational
Fermi 2 应急柴油发电机(EDG)因控制电源变压器选型偏小整体不可用（2006）
Root cause: 1998 年 MCC 改造设计错误，未核算替换接触器涌流对控制电源变压器选型的影响；Extent-of-condition 还发现 EDG 机房通风风机同隐患
Official source ↗
增压器失效RPN 96 · High
Failure Mechanism
轴承/叶轮损坏致功率下降
How to Detect
Online monitoring · Detection rate 80% ；Re-inspect ≤every24months
Mitigation (What to Do)
  • 增压器维护
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)
  • ISO 8528-1
Lessons Learned (2)
NUREG-IN-94-51NRC1994Operational
NRC 信息公告 94-51：双密封电机轴承不当加脂导致启动失败（1994，North Anna）
Root cause: 双密封轴承本不需加脂，但自 1986 年起每 18 个月加脂，旧脂充满轴承腔；低温下脂硬化致启动负载异常升高
Official source ↗
NUREG-LER-2006-004-FERMI2NRC2006Operational
Fermi 2 应急柴油发电机(EDG)因控制电源变压器选型偏小整体不可用（2006）
Root cause: 1998 年 MCC 改造设计错误，未核算替换接触器涌流对控制电源变压器选型的影响；Extent-of-condition 还发现 EDG 机房通风风机同隐患
Official source ↗
控制系统故障RPN 96 · Critical
Failure Mechanism
控制器/转速传感器失效
How to Detect
Online monitoring · Detection rate 80% ；Re-inspect ≤every24months
Mitigation (What to Do)
  • 控制器自诊断
  • 传感器校准
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)
  • NFPA 110
  • ISO 8528-5
Lessons Learned (2)
NUREG-IN-94-51NRC1994Operational
NRC 信息公告 94-51：双密封电机轴承不当加脂导致启动失败（1994，North Anna）
Root cause: 双密封轴承本不需加脂，但自 1986 年起每 18 个月加脂，旧脂充满轴承腔；低温下脂硬化致启动负载异常升高
Official source ↗
NUREG-LER-2006-004-FERMI2NRC2006Operational
Fermi 2 应急柴油发电机(EDG)因控制电源变压器选型偏小整体不可用（2006）
Root cause: 1998 年 MCC 改造设计错误，未核算替换接触器涌流对控制电源变压器选型的影响；Extent-of-condition 还发现 EDG 机房通风风机同隐患
Official source ↗
电压调节器故障RPN 84 · High
Failure Mechanism
AVR 失效致电压异常
How to Detect
Online monitoring · Detection rate 80% ；Re-inspect ≤every24months
Mitigation (What to Do)
  • AVR 校验
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 (1)
  • ISO 8528-5
Lessons Learned (2)
NUREG-IN-94-51NRC1994Operational
NRC 信息公告 94-51：双密封电机轴承不当加脂导致启动失败（1994，North Anna）
Root cause: 双密封轴承本不需加脂，但自 1986 年起每 18 个月加脂，旧脂充满轴承腔；低温下脂硬化致启动负载异常升高
Official source ↗
NUREG-LER-2006-004-FERMI2NRC2006Operational
Fermi 2 应急柴油发电机(EDG)因控制电源变压器选型偏小整体不可用（2006）
Root cause: 1998 年 MCC 改造设计错误，未核算替换接触器涌流对控制电源变压器选型的影响；Extent-of-condition 还发现 EDG 机房通风风机同隐患
Official source ↗
超速RPN 80 · Critical
Failure Mechanism
调速器失效致转速超限
How to Detect
Online monitoring · Detection rate 80% ；Re-inspect ≤every24months
Mitigation (What to Do)
  • 调速器校验
  • 超速保护测试
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)
  • ISO 8528-1
Lessons Learned (2)
NUREG-IN-94-51NRC1994Operational
NRC 信息公告 94-51：双密封电机轴承不当加脂导致启动失败（1994，North Anna）
Root cause: 双密封轴承本不需加脂，但自 1986 年起每 18 个月加脂，旧脂充满轴承腔；低温下脂硬化致启动负载异常升高
Official source ↗
NUREG-LER-2006-004-FERMI2NRC2006Operational
Fermi 2 应急柴油发电机(EDG)因控制电源变压器选型偏小整体不可用（2006）
Root cause: 1998 年 MCC 改造设计错误，未核算替换接触器涌流对控制电源变压器选型的影响；Extent-of-condition 还发现 EDG 机房通风风机同隐患
Official source ↗