Switchgear Station Potential Exposures to Hazardous Energy
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Type:  Just-In-Time Report

Publisher:  CH2MHill Plateau Remediation Company, Hanford Site (CHPRC)

Published As:  Public

Date: 

Topics:  Electrical, Maintenance, Hazardous Energy Control

On February 10, 2017 work activities at the Plutonium Finishing Plant (PFP) on D&D SWGR-1 (Temporary Electrical Power Switchgear Station) were scheduled to take place. After isolating the main disconnect in SWGR-1 and installing the Lockout/Tagout (LOTO), the work team performed the safe to work check, and removed the back panels to SWGR-1 in preparation to tie-in additional electrical loads.

At this time, the electricians observed the 480 volt energized line side bus bar for the main disconnect was accessible in the cubicle next to where they had removed the panels. There was no barrier between their work area and the bussing going into the line side of the main disconnect (a separation panel was not in place). The electricians immediately backed away from the panel and notified supervision. If they had continued, electricians would have been working in close proximity to exposed hazardous electrical energy.

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