ML101130528

From kanterella
Jump to navigation Jump to search

Submittal of the Inservice Testing Program Relief Requests for Pumps and Valves - Third Ten-Year Interval - ME2552, ME2553
ML101130528
Person / Time
Site: Fermi DTE Energy icon.png
Issue date: 04/22/2010
From: Mahesh Chawla
Plant Licensing Branch III
To: Hassoun A
Detroit Edison
Chawla M, NRR/DORL/LPL3-1, 301-415-8371
References
TAC ME2552, TAC ME2553
Download: ML101130528 (2)


Text

From:

Chawla, Mahesh Sent:

Thursday, April 22, 2010 9:43 AM To:

Alan I Hassoun Cc:

Bedi, Gurjendra; McMurtray, Anthony

Subject:

Fermi 2-Submittal of the Inservice Testing Program Relief Requests for Pumps and Valves - Third Ten-year Interval - ME2552, ME2553

Sam, This is in reference to your response dated March 22, 2010 for the above submittal. The NRC staff would like to clarify the following: Please arrange a telephone conference to discuss the staff comments.

(1) The licensee response to RAI-PRR-005-02 shows that some of the relief request PRR-05 pumps are positive displacement pumps. The original submitted relief request PRR-005 only mentioned relief from Table ISTB 5121-1 and Table-5221-1, which are applicable to centrifugal pumps and vertical shaft centrifugal pumps only. The licensee did not mentioned any relief from the Table ISTB-5321-1 requirements which is applicable to positive displacement pumps.

Please verify that some of the pumps as specified in RAI response are positive displacement pumps and relief is also required for these pumps from the applicable Table ISTB-5321-1 requirements.

(2) In relief request PRR-004, Page 22 of 79, Section C. Review of "Spike" in Vibration Data, third paragraph, first line states that "As illustrated previously, there have been no significant degrading trends associated with vibration data for the past fifteen years." Similarly on page 25 of 79, second line states "Additionally, the overall vibration level, when dampened using moving average technique, have remained essentially steady or risen only slightly over the past 15 years. The data provided in relief request PRR-004, Figures 1, 2, 3, 4, 5 and 6 are from 2002 thru 2009 and Figures 7, 8, 9, and 10 are from 1990 thru 2007. Please explain how these provided data are for fifteen years as specified above.

Mahesh Chawla Phone: 301-415-8371 Fax: 301-415-1222 mahesh.chawla@nrc.gov E-mail Properties Mail Envelope Properties ()

Subject:

Fermi 2-Submittal of the Inservice Testing Program Relief Requests for Pumps and Valves - Third Ten-year Interval - ME2552, ME2553 Sent Date: 4/22/2010 8:16:59 AM Received Date: 4/22/2010 9:42:00 AM From: Chawla, Mahesh

Created By: Mahesh.Chawla@nrc.gov Recipients:

hassouna@dteenergy.com (Alan I Hassoun)

Tracking Status: None Gurjendra.Bedi@nrc.gov (Bedi, Gurjendra)

Tracking Status: None Anthony.McMurtray@nrc.gov (McMurtray, Anthony)

Tracking Status: None Post Office:

Files Size Date & Time MESSAGE 10148 4/22/2010 Options Expiration Date:

Priority: olImportanceNormal ReplyRequested: False Return Notification: False Sensitivity: olNormal Recipients received: