ML110260028

E-mail, EPU, Health Physics and Human Performances Request for Additional Information Round 1

ML110260028
Person / Time
Site:	Turkey Point
Issue date:	01/25/2011
From:	Jason Paige Plant Licensing Branch II
To:	Abbatiello T, Abbott L, Tiemann P Florida Power & Light Co
Paige, Jason C, NRR/DORL,301-415-5888
References
Download: ML110260028 (2)

Text

From: Paige, Jason Sent: Tuesday, January 25, 2011 4:02 PM To: tom.abbatiello@fpl.com; Abbott, Liz; Tiemann, Philip

Subject:

Turkey Point EPU - Health Physics and Human Performance (IHPB) Request for Additional Information - Round 1

Tom, Below are requests for additional information (RAIs) regarding the Turkey Point Extended Power Uprate license amendment request. On January 25, 2011, the Nuclear Regulatory Commission staff and Florida Power & Light Company discussed draft RAIs to gain a common understanding of the questions. During the call, it was concluded that there was a common understanding of all of the questions and no revisions were needed. The below RAIs reflect the questions discussed and agreed upon during the January 25, 2011, call. FPL agreed upon providing its responses within 30 days of the date of this email. If you have any questions, feel free to contact me.

IHPB-1.1 As described in LAR, Section 2.11.1.1, Regulatory Evaluation, the units are equipped with a common control room. Are operators trained and licensed to operate either unit? If so, how has this been considered in the EPU implementation plan, e.g. how will potential human errors be prevented or minimized during the time period when the units are significantly different?

IHPB-1.2 In Section 2.11.1.2.2 Description of Analysis and Evaluations, Topic 1.0, Changes in Emergency and Abnormal Operating Procedures, the licensee stated, In addition to the more significant items listed below, minor changes (typically setpoints) have been identified for several Emergency, Abnormal and other Operating procedures. The licensee should add these minor changes to the list that it provided, or describe the criteria by which they were defined as minor and excluded.

IHPB-1.3 In the same section, 2.11.1.2.2, Topic 1.0, Changes in Emergency and Abnormal Operating Procedures, the licensee listed four changes to the strategy for cold leg and hot leg recirculation. How do each of the four changes affect the operator actions stated in the associated procedures? Format the response in causal terms such as, the use of two HHSI pumps adds/changes/deletes the following actions in the current action sequence in the EOPs As a result, use of two pumps reduces/increases recovery time and, thus, reduces/increases the time available for operators to accomplish the function.

IHPB-1.4 In Topic 2.0 of Section 2.11.1.2.2, Changes to Operator Actions Sensitive to Power Uprate, the licensee did not answer the question completely. The licensee identified some actions with response times that were affected, but didnt discuss whether times were reduced or increased, lengths of time involved, and why the changes were acceptable. Therefore, responses to the following are needed:

a. Identify and describe operator actions that will involve additional response time or will have reduced time available. The response should address any operator workarounds that might affect existing response times.

b. Identify any operator actions that are being automated or being changed from automatic to manual as a result of the power uprate.

c. Provide justification for the acceptability of any changes identified in 4.a. or 4.b. above.

IHPB-1.5 In Section 2.11.1 of the LAR, Human Factors, much credit is taken for approved plant procedures and processes such as the modification process.

Please summarize the procedures and processes that are used to develop or change human factors interfaces. Include specific references that address verification and validation of operator actions and interfaces.

IHPB-1.6 In Topic 3. Changes to Control Room Controls, Displays and Alarms, several lists are provided, but in two cases, it appears that the associated list was inadvertently omitted.

a. The licensee stated, Alarm response procedures (Units 3 and 4) will require revision as a result of setpoint changes: Where is the list of procedures?

b. The licensee stated, Plant computer setpoints will be changed for the following parameters: Where is the list of parameters?

IHPB-1.7 Will EPU require any operator interface changes from analog to digital? If so, list those digital changes that change, add, or delete displays used by operators, discuss any differences between the analog display and the digital display, and justify equivalency or describe the advantages of digital display to the operator(s).

IHPB-1.8 Will detailed operator training be completed, including making required modifications to the plant simulator and incorporating EPU-required changes into the lead plant procedures and operator training program, prior to implementation of the EPU at the lead unit?

Jason Paige, Turkey Point Project Manager Plant Licensing Branch II-2 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation US Nuclear Regulatory Commission Phone: (301) 415-5888