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)

Text

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LIC. OCC. f: W 4.fa' mgg. Potential CDR: Inadequate Design of 3/4" Test Lines on Safety

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. J L'l Z IC.'1 0?.Ce m n N g: Licensee reported that the 3/4" test lines from l' kg

'the 8" low head safety injection headers as designed do not allow-  ;

k for acceptable piping flexibility per ANSI B31.7 during particular -

~ f 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 .

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