ML15037A398

NRR E-mail Capture - Clarification Questions on ET 13-0035, Dated 11/21/13 (FPP - Alt SD Capability; TAC No. MF3112)

ML15037A398
Person / Time
Site:	Wolf Creek
Issue date:	02/06/2015
From:	Lyon F Plant Licensing Branch IV
To:	Edwards M Omaha Public Power District
References
TAC MF3112
Download: ML15037A398 (2)

Text

NRR-PMDAPEm Resource From: Lyon, Fred Sent: Friday, February 06, 2015 11:20 AM To: medwards@oppd.com Cc: bhansher@oppd.com; Vettori, Robert

Subject:

Clarification Questions on ET 13-0035, dated 11/21/13 (FPP - Alt SD Capability; TAC No.

MF3112)

Mike, the AFPB staff reviewing the submittal need some minor clarifications on the submittal (ADAMS Accession No. ML13331A728). They look simple, but we dont want to assume.

• The bottom paragraph on Att. I, page 14/64, refers to one cable carrying the temperature signal for all 4 transmitters per loop to the protection cabinet, but the top paragraph of page 15/64 refers to two cables (one per train) carrying the result from each protection cabinet to each SSPS cabinet.

Both paragraphs have the following sentence, The average temperature of each loop is calculated within the protection cabinet and the output is sent to both trains of SSPS input cabinets.

Although worded slightly different they both refer to SSPS input cabinets (SB029A - Train A and SB032A - Train B).

Its not clear what loop goes to what train.

Signals for Train A (Loops 2 and 3) enter protection cabinets SB037 (Loop 3) and SB038 (Loop 1) through the lower cable spreading room. There are no exposed cables in the equipment cabinet area associated with the Train A input signals except those within the cabinets. Signals for Train B (Loops 2 and 4) enter protection cabinets SB041 (Loop 4) and SB042 (Loop 2) from the upper cable spreading room via raceway that is installed within the equipment cabinet area of the control room.

What happened to Loop 1?

• In Att. I, page 62/64, the licensee references OFN RP-017, Revision 41, but in document E-F9915, page 4/102, the licensee references OFN RP-017, Revision 42. Please confirm the revision numbers.

Thanks, Fred 1

Hearing Identifier: NRR_PMDA Email Number: 1862 Mail Envelope Properties (Fred.Lyon@nrc.gov20150206112000)

Subject:

Clarification Questions on ET 13-0035, dated 11/21/13 (FPP - Alt SD Capability; TAC No. MF3112)

Sent Date: 2/6/2015 11:20:01 AM Received Date: 2/6/2015 11:20:00 AM From: Lyon, Fred Created By: Fred.Lyon@nrc.gov Recipients:

"bhansher@oppd.com" <bhansher@oppd.com>

Tracking Status: None "Vettori, Robert" <Robert.Vettori@nrc.gov>

Tracking Status: None "medwards@oppd.com" <medwards@oppd.com>

Tracking Status: None Post Office:

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