FCF Inadequate Zero Energy Check During Maintenance
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Type:  Lessons Learned

Publisher:  Idaho National Laboratory, Idaho Falls, ID

Date: 

Topics:  Electrical

Materials and Fuels Complex's Utilities and Infrastructure Support division performed a lockout/tagout on the steam and condensate system at the source for maintenance. On June 19, 2017, and June 20, 2017, Fuel Conditioning Facility personnel performed local LOTOs on steam and condensate isolation's to support maintenance efforts. It was later discovered that zero energy checks performed on the LOTOs did not meet management's expectations because there was no energy present to support validation of isolation thru a proper zero energy check.

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