ML16123A048
| ML16123A048 | |
| Person / Time | |
|---|---|
| Site: | Palo Verde  |
| Issue date: | 05/02/2016 |
| From: | Siva Lingam Plant Licensing Branch IV |
| To: | Weber T Arizona Public Service Co |
| References | |
| MF7569, MF7570, MF7571 | |
| Download: ML16123A048 (2) | |
Text
1 NRR-PMDAPEm Resource From:
Lingam, Siva Sent:
Monday, May 02, 2016 8:39 AM To:
Thomas.N.Weber@aps.com; Michael.Dilorenzo@aps.com Cc:
Pascarelli, Robert; Chernoff, Margaret; Green, Brian; Stattel, Richard; Mazumdar, Subinoy; Martinez-Navedo, Tania; Matharu, Gurcharan; Peng, Shie-Jeng
Subject:
Palo Verde Nuclear Generating Station, Units 1, 2, and 3 - Acceptance Review of Degraded and Loss of Voltage Relay Modifications License Amendment Request (CAC Nos. MF7569, MF7570, and MF7571)
By letter dated April 1, 2016 (Agencywide Documents Access and Management System Accession No. ML16096A337), Arizona Public Service Company (the licensee) submitted a license amendment request (LAR) for Palo Verde Nuclear Generating Station, Units 1, 2, and 3, requesting an approval to revise the Technical Specifications (TSs). The proposed LAR would revise TS requirements regarding the degraded and loss of voltage relays that are planned to be modified to be more aligned with designs generally implemented in the industry. Specifically, the licensing basis for degraded voltage protection will be changed from reliance on a TS initial condition that ensures adequate post-trip voltage support of accident mitigation equipment to crediting automatic actuation of the degraded and loss of voltage relays to ensure proper equipment performance. The purpose of this e-mail is to provide the results of the U.S. Nuclear Regulatory Commission (NRC) staffs acceptance review of this LAR. The acceptance review was performed to determine if there is sufficient technical information in scope and depth to allow the NRC staff to complete its detailed technical review. The acceptance review is also intended to identify whether the application has any readily apparent information insufficiencies in its characterization of the regulatory requirements or the licensing basis of the plant.
The NRC staff has reviewed your application and concluded that it does provide technical information in sufficient detail to enable the NRC staff to complete its detailed technical review and make an independent assessment regarding the acceptability of the proposed LAR in terms of regulatory requirements and the protection of public health and safety and the environment. Given the lesser scope and depth of the acceptance review as compared to the detailed technical review, there may be instances in which issues that impact the NRC staffs ability to complete the detailed technical review are identified despite completion of an adequate acceptance review. If additional information is needed, you will be advised by separate correspondence.
If you have any questions, please contact me.
Siva P. Lingam U.S. Nuclear Regulatory Commission Project Manager (NRR/DORL/LPL4-1)
Palo Verde Nuclear Generating Station Location: O8-D5; Mail Stop: O8-B3 Telephone: 301-415-1564; Fax: 301-415-1222 E-mail address: siva.lingam@nrc.gov
Hearing Identifier:
NRR_PMDA Email Number:
2812 Mail Envelope Properties (Siva.Lingam@nrc.gov20160502083900)
Subject:
Palo Verde Nuclear Generating Station, Units 1, 2, and 3 - Acceptance Review of Degraded and Loss of Voltage Relay Modifications License Amendment Request (CAC Nos. MF7569, MF7570, and MF7571)
Sent Date:
5/2/2016 8:39:12 AM Received Date:
5/2/2016 8:39:00 AM From:
Lingam, Siva Created By:
Siva.Lingam@nrc.gov Recipients:
"Pascarelli, Robert" <Robert.Pascarelli@nrc.gov>
Tracking Status: None "Chernoff, Margaret" <Margaret.Chernoff@nrc.gov>
Tracking Status: None "Green, Brian" <Brian.Green@nrc.gov>
Tracking Status: None "Stattel, Richard" <Richard.Stattel@nrc.gov>
Tracking Status: None "Mazumdar, Subinoy" <Subinoy.Mazumdar@nrc.gov>
Tracking Status: None "Martinez-Navedo, Tania" <Tania.Martinez-Navedo@nrc.gov>
Tracking Status: None "Matharu, Gurcharan" <Gurcharan.Matharu@nrc.gov>
Tracking Status: None "Peng, Shie-Jeng" <Shie-Jeng.Peng@nrc.gov>
Tracking Status: None "Thomas.N.Weber@aps.com" <Thomas.N.Weber@aps.com>
Tracking Status: None "Michael.Dilorenzo@aps.com" <Michael.Dilorenzo@aps.com>
Tracking Status: None Post Office:
Files Size Date & Time MESSAGE 2494 5/2/2016 8:39:00 AM Options Priority:
Standard Return Notification:
No Reply Requested:
No Sensitivity:
Normal Expiration Date:
Recipients Received:
1 NRR-PMDAPEm Resource From:
Lingam, Siva Sent:
Monday, May 02, 2016 8:39 AM To:
Thomas.N.Weber@aps.com; Michael.Dilorenzo@aps.com Cc:
Pascarelli, Robert; Chernoff, Margaret; Green, Brian; Stattel, Richard; Mazumdar, Subinoy; Martinez-Navedo, Tania; Matharu, Gurcharan; Peng, Shie-Jeng
Subject:
Palo Verde Nuclear Generating Station, Units 1, 2, and 3 - Acceptance Review of Degraded and Loss of Voltage Relay Modifications License Amendment Request (CAC Nos. MF7569, MF7570, and MF7571)
By letter dated April 1, 2016 (Agencywide Documents Access and Management System Accession No. ML16096A337), Arizona Public Service Company (the licensee) submitted a license amendment request (LAR) for Palo Verde Nuclear Generating Station, Units 1, 2, and 3, requesting an approval to revise the Technical Specifications (TSs). The proposed LAR would revise TS requirements regarding the degraded and loss of voltage relays that are planned to be modified to be more aligned with designs generally implemented in the industry. Specifically, the licensing basis for degraded voltage protection will be changed from reliance on a TS initial condition that ensures adequate post-trip voltage support of accident mitigation equipment to crediting automatic actuation of the degraded and loss of voltage relays to ensure proper equipment performance. The purpose of this e-mail is to provide the results of the U.S. Nuclear Regulatory Commission (NRC) staffs acceptance review of this LAR. The acceptance review was performed to determine if there is sufficient technical information in scope and depth to allow the NRC staff to complete its detailed technical review. The acceptance review is also intended to identify whether the application has any readily apparent information insufficiencies in its characterization of the regulatory requirements or the licensing basis of the plant.
The NRC staff has reviewed your application and concluded that it does provide technical information in sufficient detail to enable the NRC staff to complete its detailed technical review and make an independent assessment regarding the acceptability of the proposed LAR in terms of regulatory requirements and the protection of public health and safety and the environment. Given the lesser scope and depth of the acceptance review as compared to the detailed technical review, there may be instances in which issues that impact the NRC staffs ability to complete the detailed technical review are identified despite completion of an adequate acceptance review. If additional information is needed, you will be advised by separate correspondence.
If you have any questions, please contact me.
Siva P. Lingam U.S. Nuclear Regulatory Commission Project Manager (NRR/DORL/LPL4-1)
Palo Verde Nuclear Generating Station Location: O8-D5; Mail Stop: O8-B3 Telephone: 301-415-1564; Fax: 301-415-1222 E-mail address: siva.lingam@nrc.gov
Hearing Identifier:
NRR_PMDA Email Number:
2812 Mail Envelope Properties (Siva.Lingam@nrc.gov20160502083900)
Subject:
Palo Verde Nuclear Generating Station, Units 1, 2, and 3 - Acceptance Review of Degraded and Loss of Voltage Relay Modifications License Amendment Request (CAC Nos. MF7569, MF7570, and MF7571)
Sent Date:
5/2/2016 8:39:12 AM Received Date:
5/2/2016 8:39:00 AM From:
Lingam, Siva Created By:
Siva.Lingam@nrc.gov Recipients:
"Pascarelli, Robert" <Robert.Pascarelli@nrc.gov>
Tracking Status: None "Chernoff, Margaret" <Margaret.Chernoff@nrc.gov>
Tracking Status: None "Green, Brian" <Brian.Green@nrc.gov>
Tracking Status: None "Stattel, Richard" <Richard.Stattel@nrc.gov>
Tracking Status: None "Mazumdar, Subinoy" <Subinoy.Mazumdar@nrc.gov>
Tracking Status: None "Martinez-Navedo, Tania" <Tania.Martinez-Navedo@nrc.gov>
Tracking Status: None "Matharu, Gurcharan" <Gurcharan.Matharu@nrc.gov>
Tracking Status: None "Peng, Shie-Jeng" <Shie-Jeng.Peng@nrc.gov>
Tracking Status: None "Thomas.N.Weber@aps.com" <Thomas.N.Weber@aps.com>
Tracking Status: None "Michael.Dilorenzo@aps.com" <Michael.Dilorenzo@aps.com>
Tracking Status: None Post Office:
Files Size Date & Time MESSAGE 2494 5/2/2016 8:39:00 AM Options Priority:
Standard Return Notification:
No Reply Requested:
No Sensitivity:
Normal Expiration Date:
Recipients Received: