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Forwards Safety Insp Repts 50-272/89-13 & 50-311/89-12 on 890522-26 & notice of deviation.Requests that util address use of resistors as isolation devices between 1E & non-1E sys in accordance w/commitments to IEEE-279.

Accession Number: ML18094A601

Date Released: Saturday, November 7, 2020

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• ML18094A600 - Forwards Safety Insp Repts 50-272/89-13 & 50-311/89-12 on 890522-26 & notice of deviation.Requests that util address use of resistors as isolation devices between 1E & non-1E sys in accordance w/commitments to IEEE-279. (2 page(s), 8/4/1989)
• ML18094A602 - Notice of deviation from insp on 890522-26.Deviation noted: variables identified did not meet redundancy criteria in that no redundant or diverse channels provided to ensure adequate post-accident monitoring available to operators. (1 page(s), 8/4/1989)
• ML18094A603 - Insp Repts 50-272/89-13 & 50-311/89-12 on 890522-26. Deviations noted.Major areas inspected:licensee implementation of Reg Guide 1.97,Rev 2 for post-accident monitoring instrumentation. (17 page(s), 7/31/1989)