# ELECTRICAL
> MSHA accident `220073200023` · 11/15/2007 · National Cement Company Of California Inc
## Details
- **Degree of injury:** ACCIDENT ONLY
- **Classification:** ELECTRICAL
- **Accident type:** Accident type, without injuries
- **Occupation:** —
- **Activity:** —
- **Injury source:** —
- **Nature of injury:** —
- **Body part:** —
- **Days lost:** 0
- **Mine experience:** — years
## Operator
- **Controller:** Vicat S A
- **Operator:** National Cement Company Of California Inc
- **Mine:** [0400213](https://api.ai-analytics.org/mine/0400213)
## Narrative

Employee was racking out motor switch gear for fan # 71FA07 at MCC J.  He checked with the control room and asked if it was okay to lock it out, but failed to check the guages to verify the switch gear was not under power.  The employee disengaged a 4160 volt switch under load causing an arc flash and destroying the breaker.  The employee was not injured.

---
*Source: [MSHA Open Government Data](https://arlweb.msha.gov/OpenGovernmentData/) · AI Analytics · CC0 1.0*