ML19242D231

Notification of Potential Design requirement:3/4-inch Test Lines from 8-inch Low Head Safety Injection Headers Do Not Allow for Acceptable Piping Flexibility

ML19242D231
Person / Time
Site:	Sequoyah
Issue date:	07/27/1979
From:	Gouge M TENNESSEE VALLEY AUTHORITY
To:
References
SWP-79-S-9, NUDOCS 7908140718
Download: ML19242D231 (1)

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Potential CDR: Inadequate Design of 3/4" Test Lines on Safety mgg.

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Licensee reported that the 3/4" test lines from l'kgk

'the 8" low head safety injection headers as designed do not allow-for acceptable piping flexibility per ANSI B31.7 during particular f

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transients. The licensee if evaluating this problem for applicability r.

t to Watts Bar Units 1 arid 2.

If determined reportable a 30-day report j

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is due 8/2//79

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