ML20209D211

Discusses Util Re Startup Test Program.Loss of Offsite Power,Coincident W/Turbine Trip Test,May Be Omitted for Unit 1.Test Should Be Performed on Unit 2 If Similar Low Power Testing Not Conducted

ML20209D211
Person / Time
Site:	05000000, Diablo Canyon
Issue date:	06/27/1984
From:	Russell W Office of Nuclear Reactor Regulation
To:	Novak T Office of Nuclear Reactor Regulation
Shared Package
ML082410749	List: ML20209A984 ML20209B531 ML20209B624 ML20209B724 ML20209B847 ML20209B894 ML20209C131 ML20209C225 ML20209C292 ML20209C320 ML20209C516 ML20209C643 ML20209C669 ML20209C675 ML20209C698 ML20209C705 ML20209C710 ML20209C715 ML20209C720 ML20209C836 ML20209C847 ML20209C848 ML20209C876 ML20209C881 ML20209C908 ML20209C921 ML20209C969 ML20209C975 ML20209C981 ML20209C993 ML20209D004 ML20209D012 ML20209D018 ML20209D030 ML20209D038 ML20209D044 ML20209D045 ML20209D071 ML20209D089 ML20209D114 ML20209D127 ML20209D130 ML20209D135 ML20209D139 ML20209D146 ML20209D154 ML20209D211 ML20209D218 ML20209D230 ML20209D235 ... further results
References
FOIA-86-197, RTR-NUREG-0675, RTR-NUREG-675 NUDOCS 8407260415
Download: ML20209D211 (1)

Text

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o, UNITED STATES

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3 NUCLEAR REGULATORY COMMISSION

{. y[' (f. j WASHINGTON, D. C. 20555 k

8 June 27, 1984 o

MEMORANDUM FOR: Thomas M. Novak, Assistant Director for Licensing Division of Licensing FROM:

William T. Russell, Deputy Director Division of Human Factors Safety

SUBJECT:

DIABLO CANYON STARTUP TEST PROGRAM

References:

a) Memo, D. Ziemann to G. Knighton, March 23, 1984 b) Memo, W. Russell to T. Novak, April 9,1984 c) Letter, G. Knighton to J. Schuyler, May 15, 1984 d) Letter, J. Schuyler to G. Knighton, June 8,1984 In Reference (a), you were advised that the Diablo Canyon Startup Test Program (FSAR Chapter 14) does not include a Loss of Offsite Power Coincident with Turbine Trip Test (LOSP test) as prescribed by Regulatory Guide 1.68, Appendix A, item 5.J.J.

In Reference (b), we stated that the FSAR should be revised to include such a test.

In Reference (c), you requested the licensee to include an LOSP test in the program or provide justification for not doing so.

In Reference (d), the licensee provided a rationale for omitting the LOSP test from the Diablo Canyon Startup Test Program. The licensee states that the test is not warranted because preoperational tests were conducted in 1975, hot functional tests were conducted in'1976, and special low power tests were conducted recently.

(These latter tests are described in SER Supplement 10 (NUREG-0675).)

We have reviewed the licensee's submittal of Reference (d) and conclude that the LOSP test may be omitted for Diablo Canyon Unit 1 based on the test objectives having been fulfilled by preoperational, hot functional, and low power testing. This is based on the observation that a natural circulation test was conducted partially fulfilling the LOSP objectives.

In addition, the remainder of the LOSP test objectives have been fulfilled by the unit trip coincident with loss of offsite power preoperational test and safety injection with simulated loss of offsite pcwer hot functional test, both of which verified the ability of the diesel generator to pick up the required Engineered Safety Features Equipment. However, the LOSP test should be performed on Unit 2 if similar preoperational and special low power testing is not to be conducted on that unit.

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j William T. Russell, Deputy Director Division of Human Factors Safety 3

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