Fire Safety Violations at MD Nuke

Tuesday, December 31, 2013 @ 02:12 PM gHale

There are two fire safety violations at Calvert Cliffs Nuclear Power Plant (CCNPP) following a Nuclear Regulatory Commission (NRC) triennial fire protection inspection.

During the inspection at the plant near Lusby, MD, Oct. 21 through Nov. 8, Constellation Energy Nuclear Group (CENG) identified one violation of low to moderate safety significance for Unit 1 and one violation of very low safety significance for Unit 2.

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“Our No. 1 priority at Calvert Cliffs is always the health and safety of our employees and the many friends, neighbors and supporters in our community,” CCNPP spokesperson Kory Raftery said. “As part of our quest to continuously build upon our safe and strong operating record, we are focused on assessing and strengthening all aspects of safety at the facility, including fire safety and are taking steps to do just that.”

The triennial inspection assesses whether CENG had implemented an adequate fire protection program and whether post-fire safe shutdown capabilities ended up established and properly maintained, according to the report.

During the inspection, the NRC reviewed several fire areas and associated fire zones at the Lusby plant.

The inspection yielded no NRC-identified findings; however, CENG identified seven Unit 1 cables and three Unit 2 cables for which “overcurrent” protection wasn’t coordinated, according to the report. The cables, which traversed several fire areas, were undersized and could overheat due to fire induced faults causing secondary fires that could render redundant or alternate safe shutdown equipment unavailable, the report said.

CENG identified the violation June 18 while transitioning to National Fire Protection Association Standard 895, a more risk-informed fire-protection approach. After identifying the violation, the report states, CENG entered the issue into its corrective action plan and conducted daily inspections in all affected fire areas for inappropriate storage of transient combustibles and/or flammable materials.

The NRC concluded CENG’s compensatory measures were appropriate with the risk significance.

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