[
  {
    "event_id": "ev_10001",
    "occurred_at": "2026-08-06T22:14:00",
    "equipment_raw": "3호기",
    "equipment_id": "eq_003",
    "alarm_type": "챔버압력",
    "severity": 4,
    "downtime_min": 18.5,
    "operator_note": "압력 스파이크 후 자동 복구"
  },
  {
    "event_id": "ev_10002",
    "occurred_at": "2026-08-06T23:02:00",
    "equipment_raw": "3 호기",
    "equipment_id": "eq_003",
    "alarm_type": "파티클",
    "severity": 3,
    "downtime_min": 6,
    "operator_note": null
  },
  {
    "event_id": "ev_10003",
    "occurred_at": "2026-08-07T01:40:00",
    "equipment_raw": "CVD-3",
    "equipment_id": "eq_003",
    "alarm_type": "온도이탈",
    "severity": 5,
    "downtime_min": 42,
    "operator_note": "히터 교체 후 재가동"
  },
  {
    "event_id": "ev_10004",
    "occurred_at": "2026-08-07T02:11:00",
    "equipment_raw": "7호기",
    "equipment_id": null,
    "alarm_type": "통신두절",
    "severity": 2,
    "downtime_min": null,
    "operator_note": "신규 반입 설비, 마스터 미등록"
  },
  {
    "event_id": "ev_10005",
    "occurred_at": "2026-08-07T03:25:00",
    "equipment_raw": "1호기",
    "equipment_id": "eq_001",
    "alarm_type": "모터과부하",
    "severity": 0,
    "downtime_min": 0,
    "operator_note": "경보만 발생, 정지 없음"
  },
  {
    "event_id": "ev_10006",
    "occurred_at": "2026-08-07T05:50:00",
    "equipment_raw": "2호기",
    "equipment_id": "eq_002",
    "alarm_type": "파티클",
    "severity": 5,
    "downtime_min": 240,
    "operator_note": "라인 전체 정지, 최장 기록"
  },
  {
    "event_id": "ev_10007",
    "occurred_at": "2026-08-07T08:03:00",
    "equipment_raw": "ETCH-2",
    "equipment_id": "eq_002",
    "alarm_type": "챔버압력",
    "severity": 1,
    "downtime_min": 2,
    "operator_note": null
  },
  {
    "event_id": "ev_10008",
    "occurred_at": "2026-08-07T09:47:00",
    "equipment_raw": "4호기",
    "equipment_id": "eq_004",
    "alarm_type": "온도이탈",
    "severity": 3,
    "downtime_min": null,
    "operator_note": "계측기 미연동 구간"
  },
  {
    "event_id": "ev_10009",
    "occurred_at": "2026-08-07T12:30:00",
    "equipment_raw": "3호기",
    "equipment_id": "eq_003",
    "alarm_type": "모터과부하",
    "severity": 2,
    "downtime_min": 11,
    "operator_note": null
  },
  {
    "event_id": "ev_10010",
    "occurred_at": "2026-08-07T15:18:00",
    "equipment_raw": "폐수처리설비",
    "equipment_id": null,
    "alarm_type": "통신두절",
    "severity": 4,
    "downtime_min": 33,
    "operator_note": "설비명만 있고 코드 없음"
  }
]