ML110070335
| ML110070335 | |
| Person / Time | |
|---|---|
| Site: | Watts Bar  |
| Issue date: | 01/03/2011 |
| From: | Office of Nuclear Reactor Regulation |
| To: | Division of Operating Reactor Licensing |
| References | |
| Download: ML110070335 (58) | |
Text
1 WBN2Public Resource From:
Poole, Justin Sent:
Monday, January 03, 2011 2:14 PM To:
Garg, Hukam; Darbali, Samir; Carte, Norbert; Singh, Gursharan Cc:
WBN2HearingFile Resource
Subject:
FW: Update NRC I&C Matrix Attachments:
20101203 Open Item List MasterTVA Update 01-03-11.docx JustinC.Poole ProjectManager NRR/DORL/LPWB U.S.NuclearRegulatoryCommission (301)4152048 email:Justin.Poole@nrc.gov From: Clark, Mark Steven [1]
Sent: Monday, January 03, 2011 1:33 PM To: Crouch, William D; Hilmes, Steven A Cc: Poole, Justin
Subject:
Update NRC I&C Matrix Bill:
Please forward to Justin.
- Thanks, Steve Steve Clark Bechtel Power Corp.
Control Systems Watts Bar 2 Completion Project Phone: 423.365.3007 e-mail: msclark0@tva.gov
Hearing Identifier:
Watts_Bar_2_Operating_LA_Public Email Number:
232 Mail Envelope Properties (19D990B45D535548840D1118C451C74D7B645455D5)
Subject:
FW: Update NRC I&C Matrix Sent Date:
1/3/2011 2:13:51 PM Received Date:
1/3/2011 2:13:55 PM From:
Poole, Justin Created By:
Justin.Poole@nrc.gov Recipients:
"WBN2HearingFile Resource" <WBN2HearingFile.Resource@nrc.gov>
Tracking Status: None "Garg, Hukam" <Hukam.Garg@nrc.gov>
Tracking Status: None "Darbali, Samir" <Samir.Darbali@nrc.gov>
Tracking Status: None "Carte, Norbert" <Norbert.Carte@nrc.gov>
Tracking Status: None "Singh, Gursharan" <Gursharan.Singh@nrc.gov>
Tracking Status: None Post Office:
HQCLSTR02.nrc.gov Files Size Date & Time MESSAGE 607 1/3/2011 2:13:55 PM 20101203 Open Item List MasterTVA Update 01-03-11.docx 438667 Options Priority:
Standard Return Notification:
No Reply Requested:
No Sensitivity:
Normal Expiration Date:
Recipients Received:
Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad49E5C.docx Open Items to be Resolved for SER Approval No.
SE Sec.
FSAR Sec.
Response
Acceptable Y/N Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments 001 All All B
(
A The Watts Bar Nuclear Plant FSAR red-line for Unit 2 (Agency 12/15/2009 Presentation Slides
- 1.
Y Closed Closed EICB RAI 3/12/2010 NNC 11/19/09: The FSAR contains 002 All All B
(
A Are there I&C components and systems that have changed to a 12/15/2009 Presentation Slides
- 2.
Y Closed Closed EICB RAI 3/12/2010 NNC 11/19/09: The FSAR contains 003 All All B
(
A Because a digital I&C platform can be configured and programmed 12/15/2009 Presentation Slides
- 3.
Y Closed Closed EICB RAI 3/12/2010 NNC 11/19/09: The FSAR contains 004 All All B
(
A Please identify the information that will be submitted for each Responder: Webb 1/13/10 Public Meeting
- 4.
Y Closed Closed EICB RAI January 13, 2010 NNC 11/19/09: LIC-110 Rev. 1 Section 005 7.1.3.1
(
G By letter date February 28, 2008 (Agencywide Documents Access Responder: Craig/Webb
- 5.
Y Closed Closed EICB RAI TVA Letter dated 006
(
G Amendment 95 of the FSAR, Chapter 7.3, shows that change 7.3-By letter dated February 5, 2010: TVA provided the Unit 2
- 6.
Y Closed Closed EICB RAI TVA Letter dated NNC: WCAP-12096 Rev. 7 007 7.1.3.1
(
G The setpoint methodology has been reviewed and approved by the TVA Letter Dated March 12, 2010 (Enclosure 1, Item No. 7
- 7.
Y Closed Closed EICB RAI TVA Letter dated TVA to provide Rev. 8 of the Unit 1 008 7.3
(
G There are several staff positions that provide guidance on setpoint TVA Letter Dated March 12, 2010 (Enclosure 1, Item No. 8
- 8.
Y Closed Closed EICB RAI TVA Letter dated 009 7.3.2 5.6,
(
D a
r Change 7.3-2, identified in Watts Bar Nuclear Plant FSAR red-line TVA Letter Dated March 12, 2010 (Enclosure 1, Item No. 9
- 9.
Y Closed Closed EICB RAI 3/12/10, 010 7.3 7.3
(
D a
r The original SER on Watts Bar (NUREG-0847) documents that the TVA Letter Dated March 12, 2010 (Enclosure 1, Item No. 10 10.
Y Closed Closed EICB RAI 3/12/10, 011 7.3.2 5.6,
(
D a
r NUREG-0847 Supplement No. 2 Section 7.3.2 includes an TVA Letter Dated March 12, 2010 (Enclosure 1, Item No. 11 11.
Y Closed Closed EICB RAI ML101680598, 012 7.4 7.4
(
D a
r The original SER on Watts Bar (NUREG-0847) documents that the TVA Letter Dated March 12, 2010 (Enclosure 1, Item No. 12 12.
Y Closed Closed EICB RAI TVA Letter dated 013 7.1.3.1
(
G Chapter 7 and Chapter 16 of Amendment 95 to the FSAR do not TVA Letter Dated March 12, 2010 (Enclosure 1, Item No. 13 13.
Y Closed Closed EICB RAI TVA Letter dated TS have been docketed.
014 All All B
(
A Provide the justification for any hardware and software changes Date: 4/27/10
- 14.
Y Closed Closed NRC Meeting TVA Letter dated 015
(
G Verify that the refurbishment of the power range nuclear Date: 4/27/10
- 15.
Y Closed Closed NRC Meeting TVA Letter dated 016
(
C a
Identify the precedents in license amendment requests (LARs), if Date: 4/27/10
- 16.
Y Closed Closed NRC Meeting TVA Letter dated 017 7.3.1 7.3.1,
(
D a
r Identify precedents in LARs, if any, for the solid state protection Date: 4/27/10
- 17.
Y Closed Closed NRC Meeting TVA Letter dated 018
(
G Identify any changes made to any instrumentation and control Date: 4/27/10
- 18.
Y Closed Closed NRC Meeting TVA Letter dated 019
(
G Verify that the containment purge isolation radiation monitor is the Date: 4/27/10
- 19.
Y Closed Closed NRC Meeting TVA Letter dated 020
(
G Provide environmental qualification information pursuant to Section Date: 4/27/10
- 20.
Y Closed Closed NRC Meeting TVA Letter dated NNC 4/30/10: SRP Section 7.0 states:
021 7.3
(
G For the Foxboro Spec 200 platform, identify any changes in Date: 5/25/10
- 21.
Y Closed Closed NRC Meeting TVA Letter dated The resolution of this item will be 022 7.3.2 5.6,
(
D a
r Verify the auxiliary feedwater control refurbishment results in a Date: 4/27/10
- 22.
Y Closed Closed NRC Meeting TVA Letter dated 023
(
G Provide environmental qualification (10 CFR 50.49) information for Date: 4/27/10
- 23.
Y Closed Closed NRC Meeting TVA Letter dated NNC 4/30/10: SRP Section 7.0 states:
024
(
C a
Provide a schedule by the January 13, 2010, meeting for providing During the January 13, 2010 meeting, TVA presented a
- 24.
Y Closed Closed NRC Meeting N/A - Request for NNC 4/30/10: Carte to address 025 7.5.2 7.5.1
(
S i
For the containment radiation high radiation monitor, verify that the Date: 4/27/10
- 25.
Y Closed Closed NRC Meeting ML101230248, 026
(
G Provide environmental qualification (10 CFR 50.49) information for Date: 4/27/10
- 26.
Y Closed Closed NRC Meeting TVA Letter dated NNC 4/30/10: SRP Section 7.0 states:
027 7.7.1.4
(
C a
For Foxboro I/A provide information regarding safety/non-safety-Date: 4/27/10
- 27.
Y Closed Closed NRC Meeting TVA Letter dated 028
(
G For the turbine control AEH system, verify that the refurbishment Responder: Mark Scansen
- 28.
Y Closed Closed NRC Meeting TVA Letter dated 029
(
C a
For the rod control system, verify that the refurbishment results in a Date: 4/27/10
- 29.
Y Closed Closed NRC Meeting TVA Letter dated 030
(
G Regarding the refurbishment of I&C equipment, identify any Responder: Clark
- 30.
Y Closed Closed NRC Meeting TVA Letter dated 031
(
C a
For the rod position indication system (CERPI), provide information Date: 4/27/10
- 31.
Y Closed Closed NRC Meeting TVA Letter dated CERPI is non-safety related.
032
(
C a
For the process computer, need to consider cyber security issues Date: 4/27/10
- 32.
Y Closed Closed NRC Meeting TVA Letter dated EICB will no longer consider cyber 033
(
C a
For the loose parts monitoring system, provide information Date: 4/27/10
- 33.
Y Closed Closed NRC Meeting TVA Letter dated The loose parts monitoring system is 034
(
G 2/4/2010 Responder: TVA
- 34.
Y Closed Closed N/A TVA Letter dated 034.1 a
r g
Chapter 7.1 - Introduction
- 35.
Y Close Closed N/A N/A 034.2
(
G Chapter 7.2 - Reactor Trip System
- 36.
Y Close Closed N/A N/A 034.3 7.3 7.3
(
D a
r Chapter 7.3 - ESFAS
- 37.
Y Closed Closed N/A N/A 034.4 7.5.1.1 7.5.2
(
M a
Chapter 7.5 - Instrumentation Systems Important to Safety
- 38.
Y Closed Closed N/A N/A Closed 034.5 7.5.1.1 7.5.2 r
c u
Chapter 7.6 - All Other Systems Required for Safety
- 39.
Y Closed Closed N/A N/A Closed 034.6 n
g h
/
Chapter 7.7 Control Systems
- 40.
Y Closed Closed N/A N/A 035
(
S i
2/18/2010 Responder: Clark
- 41.
Y Closed Closed RAI No. 1 TVA Letter dated LIC-110 Section 6.2.2 states: Design 036 7.5.2 7.5.1
(
C a
February 18, 2010 Date: 5/25/10
- 42.
Y Closed Closed NRC Meeting NNC: Unit 2 FSAR Section 7.5.1, Post 037 7.5.1.1 7.5.2
(
M a
2/18/2010 Responder: Clark Date: 5/25/10
- 43.
Y Closed Closed N/A TVA Letter dated FSAR Amendment 100 provides
Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad49E5C.docx Open Items to be Resolved for SER Approval No.
SE Sec.
FSAR Sec.
Response
Acceptable Y/N Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments 038 7.5.1.1 7.5.2
(
M a
2/18/2010 Responder: Clark Date: 5/25/10
- 44.
Y Closed Closed EICB RAI TVA Letter dated The slides presented at the December 039
(
G January 13, 2010 Responder: Clark Date: 5/25/10
- 45.
Y Closed Closed EICB RAI FSAR amendment The equation for the calculation of the 040
(
G January 13, 2010 Responder: Clark Date: 5/25/10
- 46.
Y Closed Closed EICB RAI EICB RAI FSAR amendment The equation for the calculation of the 042 All All B
(
A February 25, 2010: Telecom Date: 5/25/10
- 47.
Y Closed Closed EICB RAI TVA Letter dated The drawing provided did not have the 044 7.5.2 7.5.1
(
C a
February 25, 2010 Date: 5/25/10
- 48.
Y Closed Closed EICB RAI TVA Letter dated 045
(
C a
February 25, 2010 Date: 5/25/10
- 49.
Y Closed Closed EICB RAI TVA Letter dated 046
(
C a
February 25, 2010 Date: 5/25/10
- 50.
Y Closed Closed N/A - Request for N/A 047 7.5.2 7.5.1
(
C a
4/8/2010 Responder: WEC/Hilmes Date: 5/25/10
- 51.
Y Closed Closed EICB RAI TVA Letter dated 048 7.5.2 7.5.1
(
C a
April 8, 2010 Date: 5/25/10
- 52.
Y Closed Closed EICB RAI TVA Letter dated 049 7.5.2 7.5.1
(
C a
4/8/2010 Responder: WEC Date: 5/25/10
- 53.
Y Closed Closed EICB RAI TVA Letter dated 051
(
G April 15, 2010 Date: 5/25/10
- 54.
Y Closed Closed N/A N/A Review addressed by another Open 052 7.5.2 7.5.1
(
S i
April 19, 2010 Date: 5/25/10
- 55.
Y Closed Closed RAI No. 12 053 7.5.2 7.5.1
(
S i
April 19, 2010 Date: 5/25/10
- 56.
Y Closed Closed RAI No. 13 054 7.5.2 7.5.1
(
S i
4/19/2010 Responder: Slifer/Clark Date: 5/25/10
- 57.
Y Closed Closed RAI No. 14 TVA Letter dated 055 7.5.2 7.5.1
(
S i
4/19/2010 Responder: Slifer/Clark Date: 5/25/10
- 58.
Y Closed Closed RAI No. 15 TVA Letter dated 056
(
S i
April 19, 2010 Date: 5/25/10
- 59.
Y Closed Closed RAI No. 16 TVA Letter dated Sorrento Radiation Monitoring 057 7.5.2 7.5.1
(
S i
4/19/2010 Responder: TVA I&C Staff Date: 5/25/10
- 60.
Y Closed Closed RAI No. 17 TVA Letter dated 058 7.5.0 7.5
(
S i
April 19, 2010 Date: 5/25/10
- 61.
Y Closed Closed RAI No. 18 TVA Letter dated 059 7.5.2 7.5.1
(
S i
April 19, 2010 Date:
- 62.
Y Closed Closed RAI No. 19 TVA Letter dated 060 7.5.2 7.5.1
(
C a
April 19, 2010 Date: 5/25/10
- 63.
Y Closed Closed N/A N/A Addressed by Open Item No. 47 061 7.5.2 7.5.1
(
C a
April 19, 2010 Date: 5/25/10
- 64.
Y Closed Closed N/A N/A Addressed by Open Item No. 48 062 7.5.2 7.5.1
(
C a
April 19, 2010 Date: 5/25/10
- 65.
Y Closed Closed N/A N/A Addressed by Open Item No. 49 063 7.5.2 7.5.1
(
C a
April 19, 2010 Date: 5/25/10
- 66.
Y Closed Closed N/A N/A Addressed by Open Item No. 50 064 7.5.2 7.5.1
(
C a
By letter dated March 12, 2010 TVA stated that the target submittal Responder: Webb Date: 4/8/2010
- 67.
Y Closed Closed N/A - No question TVA Letter dated 065 7.5.2 7.5.1
(
C a
By letter dated March 12, 2010 TVA stated that the target submittal Responder: WEC Date: 5/25/10
- 68.
Y Closed Closed N/A - No question TVA Letter dated 066 7.5.2 7.5.1
(
C a
By letter dated March 12, 2010 TVA stated that the target submittal Responder: WEC Date: 5/25/10
- 69.
Y Closed Closed N/A - No question TVA Letter dated 072 7.5.2 7.5.1
(
C a
By letter dated March 12, 2010 TVA stated that the target submittal Responder: WEC Date: 5/25/10
- 70.
Y Closed Closed N/A - No question N/A 076 7.5.2 7.5.1
(
C a
By letter dated March 12, 2010 TVA stated that the target submittal Responder: Clark Date: 5/25/10
- 71.
Y Closed Closed N/A - No question N/A 077 7.5.2 7.5.1
(
C a
By letter dated March 12, 2010 TVA stated that the target submittal Responder: WEC Date: 5/25/10
- 72.
Y Closed Closed N/A - No question TVA Letter dated 078
(
G 4/26/2010 Responder: Clark Date: 5/25/10
- 73.
Y Closed Closed EICB RAI TVA Letter dated 079
(
G 4/26/2010 Responder: Clark Date: 5/25/10
- 74.
Y Closed Closed EICB RAI TVA Letter dated Reviewed under Item 154 080
(
S i
4/26/2010 Responder: WEC
- 75.
Y Closed Closed RAI No. 2 TVA Letter dated 083 7.5.2 7.5.1
(
C a
May 6, 2010 Date: 6/18/10
- 76.
Y Closed Closed EICB RAI TVA Letter dated 084 7.5.2 7.5.1
(
C a
May 6, 2010 Date: 6/18/10
- 77.
Y Closed Closed EICB RAI TVA Letter dated 087 7.5.2 7.5.1
(
S i
May 6, 2010 Date: 5/24/10
- 78.
Y Closed Closed RAI No. 20 TVA Letter dated 088 7.5.2 7.5.1
(
S i
May 6, 2010 Date: 5/24/10
- 79.
Y Closed Closed RAI No. 21 TVA Letter dated 089
(
C a
5/6/2010 Responder: Clark
- 80.
Y Closed Closed EICB RAI TVA Letter dated NNC: Docketed response states that 090
(
C a
5/6/2010 Responder: Clark Date: 5/25/10
- 81.
Y Closed Closed EICB RAI TVA Letter dated 091 7.4 7.4
(
D a
r May 20, 2010 Date: 5/25/10
- 82.
Y Closed Closed EICB RAI No.1 TVA Letter dated 093
(
G May 20, 2010 Date: 5/25/10
- 83.
Y Closed Closed N/A N/A Will be reviewed under item 154 094
(
G 5/20/2010 Responder: Clark Date: 5/25/10
- 84.
Y Closed Closed N/A N/A Information was found in FSAR 095 7.8.1, XX
(
D a
r May 20, 2010 Date:
- 85.
Y Closed Closed EICB RAI No. 2 TVA Letter dated 096 7.7.5 XX
(
D a
r 5/20/2010 Responder:
- 86.
Y Closed Closed EICB RAI No.3 TVA Letter dated
Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad49E5C.docx Open Items to be Resolved for SER Approval No.
SE Sec.
FSAR Sec.
Response
Acceptable Y/N Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments 097 7.4.2 7.4
(
D a
r May 20, 2010 Date:
- 87.
Y Closed Closed EICB RAI No.4 TVA Letter dated 098 7.4.2 7.4
(
D a
r May 25, 2010 Date:
- 88.
Y Closed Closed EICB RAI No.5 TVA Letter dated 099
(
B a
April 12, 2010 Date:
- 89.
Y Closed Closed Closed to Item 129 100
(
C a
5/20/2010 Responder: WEC
- 90.
Y Closed Closed N/A - No question N/A 102
(
C a
May 24, 2010 Date: 5/24/10
- 91.
Y Closed Closed N/A TVA Letter dated Request for schedule not information.
103 7.4 7.4
(
D a
r 5/27/2010 Responder: Ayala Date: 5/27/10
- 92.
Y Closed Closed EICB RAI No.1 TVA Letter dated Submittal date is based on current 104 7.4 7.4
(
D a
r 5/27/2010 Responder: Merten Date: 5/27/10
- 93.
Y Closed Closed EICB RAI No.1 TVA Letter dated Submittal date is based on current 105
(
G April 29, 2010 Date:
- 94.
Y Closed Closed N/A N/A Will be reviewed under item 154.
106
(
S i
May 6, 2010 Date: 5/25/10
- 95.
Y Closed Closed RAI No. 9 TVA Letter dated 107
(
S i
May 6, 2010 Date: 5/28/10
- 96.
Y Closed Closed RAI No. 22 TVA Letter dated 108
(
G May 6, 2010 Date: 5/25/10
- 97.
Y Closed Closed N/A N/A Will be reviewed under OI#154 109.a 7.8 XX
(
D a
r 5/6/2010 Responder: N/A
- 98.
Y Closed Closed N/A N/A 109.b
(
C a
5/6/2010 Responder: N/A
- 99.
Y Closed Closed N/A N/A Duplicate of another open Item.
110
(
G May 6, 2010 Date:
100. Y Closed Closed N/A N/A Information was found.
111
(
C a
May 6, 2010 Date: 5/28/10 101. Y Closed Closed N/A TVA Letter dated Request to help find, not a request for 112
(
G June 1, 2010 Date:
102. Y Closed Closed N/A N/A Information was received 113
(
G 6/1/2010 Responder: Clark 103. Y Closed Closed EICB RAI TVA Letter dated 114 7.2 7.2
(
G 6/1/2010 Responder: WEC 104. Y Close Closed EICB RAI TVA Letter dated 115
(
C a
2/25/2010 Responder: Clark 105. Y Closed Closed EICB RAI TVA Letter dated 116
(
G 6/3/2010 Responder: WEC 106. Y Closed Closed EICB RAI TVA Letter dated Letter sent to Westinghouse requesting 118 7.4 7.4
(
D a
r 6/8/2010 Responder: Merten 107. Y Closed Closed EICB RAI No.1 TVA Letter dated Submittal date is based on current 119
(
S i
June 10, 2010 Date:
108. Y Closed Closed RAI No. 23 TVA Letter dated 120
(
C a
5/6/2010 Responder: Hilmes/Merten/Costley 109. Y Closed Closed EICB RAI TVA Letter dated 121
(
C a
5/6/2010 Responder: Webb/Webber 110. Y Closed Closed EICB RAI TVA Letter dated 122
(
C a
June 14, 2010 Date:
111. Y Closed Closed N/A - Request for N/A 123 7.7.3 7.4.1,
(
D a
r 6/14/2010 Responder:
112. Y Closed Closed ML101720589, TVA Letter dated 124 7.7.5 XX
(
D a
r 6/14/2010 Responder:
113. Y Closed Closed ML101720589, Item TVA Letter dated 125 7.7.8 7.7.1.12
(
D a
r 6/14/2010 Responder:
114. Y Closed Closed ML101720589, Item TVA Letter dated 126 7.8 7.8
(
D a
r June 14, 2010 Date:
115. Y Closed Closed ML101720589, Item TVA Letter dated 127 7.2 7.2
(
G 6/16/2010 Responder: WEC/Clark 116. Y Closed Closed EICB RAI TVA Letter dated 128 7.2 7.2
(
G 6/18/2010 Responder: WEC Drake /TVA Craig 117. Y Closed Closed EICB RAI TVA Letter dated Track through SE open item 129
(
P o
6/12/2010 Responder: WEC 118. Y Closed Closed N/A TVA Letter dated 130
(
P o
6/28/2010 Responder: Clark 119. Y Closed Closed N/A TVA Letter dated 131
(
P o
6/28/2010 Responder: Clark 120. Y Closed Closed N/A TVA Letter dated 132
(
P o
6/28/2010 Responder: Clark 121. Y Closed Closed N/A TVA Letter dated 133
(
P o
6/28/2010 Responder: Clark 122. Y Closed Closed TVA Letter dated 134
(
P o
6/28/2010 Responder: Clark 123. Y Closed Closed TVA Letter dated 135 7.3.1 7.3.1
(
D a
r 6/30/2010 Responder: Clark 124. Y Closed Closed RAI not necessary TVA Letter dated 136 7.3.2, 7.4, 5.6,
(
D a
r 6/30/2010 Responder: Clark 125. Y Closed Closed RAI not necessary TVA Letter dated 137
(
C a
Several WBN2 PAMS documents contain a table titled, Document Responder: WEC 126. Y Closed Closed ML101650255, Item TVA Letter dated 139
(
C a
The WBN2 PAMS System Requirements Specification (WBN2 Responder: WEC 127. Y Closed Closed ML101650255, Item TVA Letter dated WBN2 PAMS System Requirements 141
(
C a
Deleted by DORL Date:
128. Y Closed Closed ML101650255, Item WBN2 PAMS System Requirements 146
(
C a
6/17/2010 Responder:
129. Y Closed Closed ML101650255, Item PAMS System Requirements
Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad49E5C.docx Open Items to be Resolved for SER Approval No.
SE Sec.
FSAR Sec.
Response
Acceptable Y/N Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments 147
(
C a
6/17/2010 Responder:
130. Y Closed Closed ML101650255, Item PAMS System Requirements 148
(
C a
6/17/2010 Responder:
131. Y Closed Closed ML101650255, Item PAMS System Requirements 149 7.2 7.2
(
G FSAR Section 7.1.1.2(2), Overtemperature delta T and Responder: Tindell 132. Y Close Closed ML101720589, Item TVA Letter dated 150 7.2 7.2
(
G Many of the changes were based on the Westinghouse document Responder: Clark 133. Y Close Closed ML101720589, Item TVA Letter dated 151 7.2 7.2
(
G Provide the EDCR 52378 and 54504 which discusses the basis for Responder: Clark 134. Y Close Closed ML101720589, Item TVA Letter dated 152 7.2 7.2
(
G Deleted portion of FSAR section 7.2.3.3.4 and moved to FSAR Responder: Merten/Clark 135. Y Close Closed ML101720589, Item TVA Letter dated 153 7.2 7.2
(
G FSAR section 7.2.1.1.7 added the reference to FSAR section Responder: Craig/Webb 136. Y Close Closed ML101720589, Item TVA Letter dated 155 7.2 7.2
(
G Summary of FSAR change document section 7.2 states that Date:
137. Y Closed Closed ML101720589, Item 157 7.2 7.2
(
G FSAR section 7.2.2.1.1, fifth paragraph was deleted except for the Responder: Tindell 138. Y Close Closed ML101720589, Item TVA Letter dated 158 7.2 7.2
(
G FSAR section 7.2.2.1.1, paragraph six was changed to state that Responder: Tindell 139. Y Closed Closed ML101720589, Item TVA Letter dated 159 7.2 7.2
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G FSAR section 7.2.2.1.2 discusses reactor coolant flow Responder: Craig 140. Y Close Closed ML101720589, Item TVA Letter dated 160 7.2 7.2
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G FSAR section 7.2.2.2(7) deleted text which has references 12 and Responder: Tindell 141. Y Close Closed ML101720589, Item TVA Letter dated 161 7.2 7.2
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G FSAR section 7.2.2.3 states that changes to the control function Responder: Clark 142. Y Closed Closed ML101720589, Item TVA Letter dated 162 7.2 7.2
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G FSAR section 7.2.2.2(14) states that bypass of a protection Responder: Tindell 143. Y Closed Closed ML101720589, Item TVA Letter dated 163 7.2 7.2
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G Deleted by DORL Date:
144. Y Closed Closed ML101720589, Item 164 7.2 7.2 a
r g
l FSAR section 7.2.2.2(20) has been revised to include the plant Responder: Perkins 145. Y Closed Closed ML101720589, Item TVA Letter dated Item No. 8 sent to DORL 165 7.2 7.2
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G FSAR section 7.2.2.3.2, last paragraph of this section has been Responder: Clark 146. Y Closed Closed ML101720589, Item TVA Letter dated 166 7.2 7.2
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G Changes to FSAR section 7.2.2.2(20) are justified based on the Responder: Clark 147. Y Closed Closed ML101720589, Item TVA Letter dated 167 7.2 7.2
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G FSAR section 7.2.2.4, provide an analysis or reference to chapter Responder: Clark 148. Y Close Closed ML101720589, Item TVA Letter dated 168 7.2 7.2
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G FSAR table 7.2-4, item 9 deleted loss of offsite power to station Responder: Clark 149. Y Close Closed ML101720589, Item TVA Letter dated 169
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G 6/18/2010 Responder: Clark 150. Y Closed Closed 170
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G 6/17/2010 Responder: Clark 151. Y Closed Closed 171 7.2 7.2
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G 6/17/2010 Responder: Craig 152. Y Closed Closed EICB RAI TVA Letter dated Closed to SE Open Item 172
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G 6/17/2010 Responder: Craig 153. Y Closed Closed EICB RAI 173 7.1 7.1
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G 6/17/2010 Responder: Craig/Webb/Powers 154. Y Closed Closed EICB RAI 174
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G 6/28/2010 Responder: Hilmes/Craig 155. Y Closed Closed EICB RAI 175
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G June 28, 2010 Responder:
156. Y Closed Closed EICB RAI 176 7.1 7.1
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G 6/28/2010 Responder: Craig/Webb 157. Y Closed Closed EICB RAI 177 7.5.2.1 7.5.1
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7/15/2010 Responder: Clark 158. Y Closed Closed N/A TVA Letter dated RAI not required 178 7.5.2.1 7.5.1
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7/15/2010 Responder: Clark 159. Y Closed Closed N/A TVA Letter dated RAI not required 179
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An emphasis is placed on traceability in System Requirements Responder: WEC 160. Y Closed Closed N/A - Closed to NA 180
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The SRP, BTP 7-14, Section B.3.3.1 states that Regulatory Guide Responder: WEC 161. Y Closed Closed N/A - Closed to NA 181
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An emphasis is placed on traceability in System Requirements Responder: WEC 162. Y Closed Closed N/A - Closed to NA 182
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Characteristics that the SRP states that a Software Requirements Responder: WEC 163. Y Closed Closed N/A - Closed to NA 184
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7/15/2010 Responder: WEC 164. Y Closed Closed N/A - Closed to N/A 186 7.7.8 7.7.1.12
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r 7/15/2010 Responder: Perkins/Clark 165. Y Closed Closed EICB RAI No.6 TVA Letter dated 188
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By letter dated June 30, 2010, TVA docketed, Tennessee Valley Responder: Clark 166. Y Closed Closed ML101970033, Item TVA Letter dated 189 7.6.7
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7/20/2010 Responder: Clark 167. Y Closed Closed RAI No. 3 TVA Letter dated 190 7.9
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FSAR Table 7.1-1 states: Regulatory Guide 1.133, May 1981 Responder: Clark 168. Y Closed Closed RAI No. 4 TVA Letter dated Closed to OI-331.
191 7.9
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NUREG-0800 Chapter 7, Section 7.9, "Data Communication Responder: Jimmie Perkins 169. Y Closed Closed ML10197016, Item TVA Letter dated 192 7.5.1.1 7.5.2
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The NRC Staff is using SRP (NUREG-0800) Chapter 7 Section Responder: Clark 170. Y Closed Closed Item No. 1 sent to TVA Letter dated EICB RAI ML1028618855 sent to 193 7.5.1.1 7.5.2
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The WBU2 FSAR, Section 7.5.2, Plant Computer System, Responder: Clark 171. Y Closed Closed Item No. 2 sent to TVA Letter dated EICB RAI ML1028618855 sent to 194 7.5.1.1 7.5.2.1
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The WBU2 FSAR Section 7.5.2.1, Safety Parameter Display Responder: Costley/Norman 172. Y Closed Closed Item No. 3 sent to TVA Letter dated EICB RAI ML1028618855 sent to
Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad49E5C.docx Open Items to be Resolved for SER Approval No.
SE Sec.
FSAR Sec.
Response
Acceptable Y/N Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments 195 7.5.1.1 7.5.2.2
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Bypassed and Inoperable Status Indication (BISI)
Responder: Costley/Norman 173. Y Closed Closed Item No. 4 sent to TVA Letter dated EICB RAI ML1028618855 sent to 196 7.5.1.1 7.5.2.2
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Bypassed and Inoperable Status Indication (BISI)
Responder: Costley/Norman 174. Y Closed Closed Item No. 5 sent to TVA Letter dated EICB RAI ML1028618855 sent to 197 X
Open Item 197 was never issued.
175. Y Closed Closed 198 7.5.1.1 7.5.2.2
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SRP Section 7.5, Subsection III, Review Procedures states:
Responder: Costley/Norman 176. Y Closed Closed Item No. 6 sent to TVA Letter dated EICB RAI ML1028618855 sent to 199 7.5.1.1 7.5.2.3
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The WBU2 FSAR Section 7.5.2.3, Technical Support Center and Responder: Costley/Norman 177. Y Closed Closed Item No. 7 sent to TVA Letter dated Related SE Section 7.5.5.3 EICB RAI 200 7.2 7/21/2010 Responder: Clark 178. Y Closed Closed EICB RAI TVA Letter dated 201 7.7.1.1 7.7.11
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7/21/2010 Responder: Webb 179. Y Closed Closed EICB RAI TVA Letter dated 203 7.5.1.1 7.5.2
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7/26/2010 Responder: Clark 180. Y Closed Closed EICB RAI TVA Letter dated EICB RAI ML102861885 sent to DORL 204 7.5.1.1 7.5.2
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7/26/2010 Responder: Costley/Norman 181. Y Closed Closed EICB RAI TVA Letter dated EICB RAI ML102861885 sent to DORL 205
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G 7/26/2010 Responder: Clark 182. Y Closed Closed EICB RAI TVA Letter dated Question B related to prior NRC 206 7.5.1.1 7.5.2
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7/27/2010 Responder: Clark 183. Y Closed Closed EICB RAI TVA Letter dated EICB RAI ML102861885 sent to DORL 207
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July 27, 2010 Date:
184. Y Closed Closed 208 7.5.2.1 7.5.1
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7/27/2010 Responder: Clark 185. Y Closed Closed EICB RAI TVA Letter dated EICB RAI ML102861885 sent to DORL 209 7.5.2.1 7.5.1
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7/27/2010 Responder: Clark 186. Y Closed Closed EICB RAI TVA Letter dated EICB RAI ML102861885 sent to DORL 210 7.5.2.1 7.5.1
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7/27/2010 Responder: Clark 187. Y Closed Closed EICB RAI TVA Letter dated EICB RAI ML102861885 sent to DORL 211 7.5.1.1
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7/27/2010 Responder: Clark 188. Y Closed Closed EICB RAI TVA Letter dated Relates to SE Sections:
214
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7/27/2010 Responder: WEC 189. Y Closed Closed EICB RAI TVA Letter dated 215
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7/29/2010 Responder: WEC 190. Y Closed Closed 216 7.5.1.1 7.5.2
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7/29/2010 Responder: Clark 191. Y Closed Closed EICB RAI TVA Letter dated EICB RAI ML102861885 sent to DORL 217
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G 7/6/2010 Responder: Clark 192. Y Close Closed EICB RAI TVA Letter dated 218
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G 7/6/2010 Responder: Clark 193. Y Closed Closed EICB RAI TVA Letter dated 219
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G 8/4/2010 Responder: TVA Licensing 194. Y Closed Closed EICB RAI 220
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G 8/4/2010 Responder: Ayala 195. Y Closed Closed EICB RAI TVA Letter dated 221 7.7.1.2 7.7.1.3
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8/4/2010 Responder: Trelease 196. Y Closed Closed EICB RAI TVA Letter dated EICB RAI ML102861885 sent to DORL 222
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G 8/4/2010 Responder: Clark 197. Y Close Closed EICB RAI TVA Letter dated 223
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G 8/4/2010 Responder: Clark 198. Y Closed Closed EICB RAI 224 7.5.1.1 7.5.2
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8/4/2010 Responder: Norman (TVA CEG) 199. Y Closed Closed EICB RAI TVA Letter dated EICB RAI ML102861885 sent to DORL 225
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G 8/4/2010 Responder: Scansen 200. Y Close Closed EICB RAI TVA Letter dated 226
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8/4/2010 Responder: TVA Licensing 201. Y Closed Closed N/A - Information TVA Letter dated See also Open Item Nos. 41 & 270.
227
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G 8/4/2010 Responder: Clark 202. Y Close Closed EICB RAI TVA Letter dated 228
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8/4/2010 Responder: Clark 203. Y Closed Closed EICB RAI TVA Letter dated 229
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8/4/2010 Responder: Clark 204. Y Closed Closed EICB RAI TVA Letter dated 230
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8/4/2010 Responder: Webb 205. Y Closed Closed EICB RAI TVA Letter dated 231
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G 8/4/2010 Responder: Clark 206. Y Closed Closed EICB RAI TVA Letter dated 232
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8/4/2010 Responder: Clark 207. Y Closed Closed RAI No. 5 TVA Letter dated 233
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8/4/2010 Responder: Clark 208. Y Closed Closed EICB RAI TVA Letter dated 234
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8/4/2010 Responder:
209. Y Closed Closed N/A - Duplicate N/A 235
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G 8/4/2010 Responder: TVA Licensing 210. Y Closed Closed N/A N/A 236
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G 8/4/2010 Responder: Clark 211. Y Close Closed EICB RAI TVA Letter dated 237
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8/4/2010 Responder: Clark 212. Y Closed Closed EICB RAI TVA Letter dated 238
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8/4/2010 Responder: Webb/Hilmes 213. Y Closed Closed N/A - Duplicate N/A 239
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8/4/2010 Responder: Hilmes 214. Y Closed Closed N/A - Meeting N/A 240
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G 8/4/2010 Responder: Clark 215. Y Close Closed Ml102910008 TVA Letter dated
Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad49E5C.docx Open Items to be Resolved for SER Approval No.
SE Sec.
FSAR Sec.
Response
Acceptable Y/N Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments 241
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8/4/2010 Responder: Davies 216. Y Closed Closed RAI No. 10 TVA Letter dated 242
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G 8/4/2010 Responder: Hilmes 217. Y Close Closed EICB RAI TVA Letter dated 243
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8/3/2010 Responder: WEC 218. Y Closed Closed N/A - Closed to N/A 247
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8/8/2010 Responder: WEC 219. Y Closed Closed EICB RAI Response is LIC-101 Rev. 3 Appendix B Section 4, 248
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8/8/2010 Responder: WEC 220. Y Closed Closed Response is LIC-101 Rev. 3 Appendix B Section 4, 249
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8/8/2010 Responder: WEC 221. Y Closed Closed LIC-101 Rev. 3 Appendix B Section 4, 253
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8/8/2010 Responder: Clark 222. Y Closed Closed TVA Letter dated Related to Open Item no. 83.
254
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8/10/2010 Responder: WEC 223. Y Closed Closed N/A - Request to TVA Letter dated 255
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8/10/2010 Responder: WEC 224. Y Closed Closed N/A - Request to TVA Letter dated 256
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8/10/2010 Responder: WEC 225. Y Closed Closed N/A - Request to TVA Letter dated 257
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8/10/2010 Responder: WEC 226. Y Closed Closed N/A - Request to N/A 258
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8/10/2010 Responder: WEC 227. Y Closed Closed N/A - Request to N/A 259
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8/10/2010 Responder: WEC 228. Y Closed Closed N/A - Request to TVA Letter dated 260
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8/10/2010 Responder: WEC 229. Y Closed Closed N/A - Request to N/A 261
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8/10/2010 Responder: WEC 230. Y Closed Closed N/A - Closed to TVA Letter dated LIC-110 Rev. 1 Section 6.2.2 states:
262
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8/10/2010 Responder: WEC 231. Y Closed Closed N/A - Request to N/A 263
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8/11/2010 Responder: WEC 232. Y Closed Closed ML101650255, Item 264
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8/11/2010 Responder: WEC 233. Y Closed Closed ML101650255, Item 265
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8/11/2010 Responder: WEC 234. Y Closed Closed ML101650255, Item 266
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8/11/2010 Responder: Webb/Webber 235. Y Closed Closed TVA Letter dated 267
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8/11/2010 Responder: WEC 236. Y Closed Closed 269
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8/20/2010 Responder: NRC 237. Y Closed Closed N/A N/A 270
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8/23/2010 Responder: Clark 238. Y Closed Closed See also Open Item Nod. 41 & 245.
271
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8/23/2010 Responder: WEC 239. Y Closed Closed N/A - Closed to NA 272 7.5.2.1 7.5.1
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8/26/2010 Responder: Clark 240. Y Closed Closed EICB RAI TVA Letter dated EICB RAI ML102861885 sent to DORL 273 7.5.2.1 7.5.1
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8/26/2010 Responder: Clark 241. Y Closed Closed EICB RAI TVA Letter dated EICB RAI ML102861885 sent to DORL 274.b
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8/26/2010 Responder: Stockton 242. Y Closed Closed RAI No. 6 TVA Letter dated 274.a 7.5.2.1 7.5.1
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8/26/2010 Responder: Clark 243. Y Closed Closed EICB RAI TVA Letter dated EICB RAI ML102861885 sent to DORL 275
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8/27/2010 Responder: Clark 244. Y Closed Closed Not Required N/A 277 7.6 7.6.3
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G 8/27/2010 Responder: Clark 245. Y Close Closed EICB RAI TVA Letter dated 278 7.6 7.6.6
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G 8/27/2010 Responder: Trelease 246. Y Close Closed EICB RAI TVA Letter dated 279 7.6 7.6.6
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G 8/27/2010 Responder: Mather 247. Y Close Closed EICB RAI TVA Letter dated 280 7.6 7.6.6
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G 8/27/2010 Responder: Trelease 248. Y Closed Closed EICB RAI TVA Letter dated 281 7.6 7.6.8
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G 8/27/2010 Responder: Webb 249. Y Closed Closed EICB RAI TVA Letter dated 282 7.6 7.6.9
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G 8/27/2010 Responder: Trelease 250. Y Close Closed EICB RAI TVA Letter dated 283 7.7.5 XX
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D a
r 8/27/2010 Responder: Clark 251. Y Closed Closed EICB RAI No.13 TVA Letter dated This item is a follow-up question to item 284 7.7.3 7.4.1
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D a
r 8/27/2010 Responder: Webber 252. Y Closed Closed EICB RAI No.14 TVA Letter dated This item is a follow-up question to item 285 7.3.3 7.3
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D a
r 8/27/2010 Responder: McNeil 253. Y Closed Closed EICB RAI No.15 TVA Letter dated This item is a follow-up question to item 286 7.7.3 9.3.4.2.
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r 8/27/2010 Responder: Webber 254. Y Closed Closed EICB RAI No.16 TVA Letter dated 287 7.3 7.3-1
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D a
r 8/27/2010 Responder: Elton 255. Y Closed Closed ML102390538, Item Response 288 7.3
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G 9/2/2010 Responder: McNeil 256. Y Closed Closed EICB RAI 289
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9/2/2010 Responder: Faulkner 257. Y Closed Closed RAI No. 24 TVA Letter dated 290 7.7
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9/7/2010 Responder: Clark 258. Y Closed Closed N/A N/A This item is a duplicate of item 291.
Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad49E5C.docx Open Items to be Resolved for SER Approval No.
SE Sec.
FSAR Sec.
Response
Acceptable Y/N Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments 291 7.7
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9/7/2010 Responder: Clark 259. Y Closed Closed TVA Letter dated 292 7.2.5 7.2
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G 9/7/2010 Responder: Craig 260. Y Closed Closed EICB RAI TVA Letter dated 293 7.7.4 7.2.2.3.
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9/8/2010 Responder: Craig 261. Y Closed Closed EICB RAI TVA Letter dated EICB RAI ML102861885 sent to DORL 294 7.3 7.3.1.1.
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r 9/9/2010 Responder: Elton 262. Y Closed Closed ML102390538, Item Response 295 7.3 7.3.1.1.
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r 9/9/2010 Responder: Elton 263. Y Closed Closed ML102390538, Item Response 296 7.3 7.3.1.2.
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r 9/9/2010 Responder: Elton 264. Y Closed Closed ML102390538, Item Response 297 7.3 7.3.1.2.
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D a
r 9/9/2010 Responder: Elton 265. Y Closed Closed ML102390538, Item Response 298 7.3 XX
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r 9/9/2010 Responder: Clark 266. Y Closed Closed ML102390538, Item Response 299
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Provide Common Q Software Requirements Specification Post 1 of the 10/5 letter contains the Common Q 267. Y Closed Closed TVA Letter dated 300
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Need Radiation Monitoring System Description/Design Criteria Responder: Temples/Mather 268. Y Closed Closed RAI No. 25 TVA Letter 302 7.5.2.1 7.5.1
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09/17/2010 Responder: Tindell 269. Y Closed Closed EICB RAI TVA Letter dated EICB RAI ML102861885 sent to DORL 303 7.5.2.1 7.5.1
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09/17/2010 Responder: Tindell 270. Y Closed Closed EICB RAI TVA Letter dated EICB RAI ML102861885 sent to DORL 304 7.5.2.1 7.5.1
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09/17/2010 Responder: Tindell 271. Y Closed Closed EICB RAI TVA Letter dated EICB RAI ML102861885 sent to DORL 305 7.5.2.1 7.5.1
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09/17/2010 Responder: Tindell 272. Y Closed Closed EICB RAI TVA Letter dated EICB RAI ML102861885 sent to DORL 312 7.0
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G By letter dated September 10,2010, TVA provided the summary Responder: Stockton 273. Y Close Closed EICB RAI TVA Letter dated 313 7.7.8 7.7.1.12
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D a
r EDCR 52408 (installation of AMSAC in Unit 2) states that Design Responder: Ayala 274. Y Closed Closed EICB RAI No.18 TVA Letter dated 314 7.3 7.3
(
D a
r The following 50.59 changes were listed in the March 12 RAI Responder: Stockton 275. Y Closed Closed EICB RAI No. 19 TVA Letter dated Related to OI 10 315 7.5.3 7.5.3
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G IE Bulletin 79-27 required that emergency operating procedures to Responder: S. Smith (TVA Operations) 276. Y Close Closed EICB RAI TVA Letter dated 316 7.5.2.3 7.5
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TVA has provided various documents in support of RM-1000 high Responder: Temples/Mather 277. Y Closed Closed RAI No. 26 317 7.5.2.3 7.5
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TVA has provided a proprietary and a non-proprietary version of Responder: Temples 278. Y Closed Closed RAI No. 27 TVA Letter dated 319 7.5.2.3 7.5
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TVA provided System Verification Test Results 04507007-1TR Responder: Temples 279. Y Closed Closed RAI No. 29 TVA Letter dated 320 E
I Per Westinghouse letter WBT-D-2340, TENNESSEE VALLEY Responder: Clark 280. Y Closed Closed N/A N/A Duplicate of item 156 321 E
I For the purposes of measuring reactor coolant flow for Reactor Responder: Clark 281. Y Closed Closed N/A N/A Duplicate of OI# 157 322 7.7.1.11
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Section 7.7.1.11 will be added to FSAR Amendment 101 to provide Responder: Clark 282. Y Closed Closed 324
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Per the NRC reviewer, the BISI calculation is not required to be 283. Y Closed Closed 325 B
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The Unit 2 loops in service for Unit 1 that are scheduled to be Responder: TVA Startup Olson 284. Y Closed Closed Closed to open item ?
328 7.5.2.3 7.5
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Provide the model number for the four containment high range Responder: Temples 285. Y Closed Closed RAI No. 30 TVA Letter dated 330 7.3 7.3
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D a
r Related to Item 298 Responder: Hilmes/Faulkner 286. Y Closed Closed EICB RAI No.20 Item 7, TVA letter 332 7.5.2.1 7.5.1
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10/26/2010 287. Y Closed Closed ML103000105 Item TBD EICB RAI ML103000105 sent to DORL 333 7.5.2.1 7.5.1
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10/27/2010 288. Y Closed Closed ML103000105 Item TBD EICB RAI ML103000105 sent to DORL 336 7.5.2.3 7.5
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Re: RM-1000 Report 04508905-QR Responder: GA 289. Y Closed Closed 337 7.5.2.3 7.5
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Re: RM-1000 Report 04508905-QR Responder: GA 290. Y Closed Closed 041 7.5.2 7.5.1 EICB (Carte) 2/19/2010 Please provide the following Westinghouse documents:
(1) WNA-DS-01617-WBT Rev. 1, "PAMS System Requirements Specification" (2) WNA-DS-01667-WBT Rev. 0, "PAMS System Design Specification" (3) WNA-CD-00018-GEN Rev. 3, "CGD for QNX version 4.5g" Please provide the following Westinghouse documents or pointers to where the material was reviewed and approved in the CQ TR or SPM:
(4) WNA-PT-00058-GEN Rev. 0, "Testing Process for Common Q Safety systems" (5) WNA-TP-00357-GEN Rev. 4, "Element Software Test Responder: WEC Items (1) and (2) were docketed by TVA letter dated April 8, 2010.
Item (3) will be addressed by Revision 2 of the Licensing Technical Report. Due 12/3/10 Item (4) will be addressed by Westinghouse developing a WBN2 Specific Test Plan to compensate for the fact that the NRC disapproved WNA-PT-00058-GEN during the original Common Q review. Due 12/7/10 Item (5) Procedures that are listed in the SPM compliance
- 1.
N Open Final Response included in letter dated 12/3/10 Partial Response is included in letter dated 10/5/10.
The SysRS and SRS incorporate requirements from many other documents by reference.
NNC 8/25/10: (3) An earlier Open-NRC Review Due:
(3) 12/3/10 (4) 12/10/10 TVA to docket information indentified in ISG6.
NRC Meeting Summary NRC Meeting Summary ML093560019, Item No. 11 TVA Letter dated 6/18/10 TVA Letter dated 10/5/10 See also Open Item Nos. 226 & 270.
Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad49E5C.docx Open Items to be Resolved for SER Approval No.
SE Sec.
FSAR Sec.
Response
Acceptable Y/N Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Procedure" table in the Licensing Technical Report revision 1 supersede that test procedure WNA-TP-00357-GEN.Due 10/22/10 For Item 3, Attachment 19 contains the Westinghouse document Post-Accident Monitoring System (PAMS)
Licensing Technical Report, WNA-LI-00058-WBT, Revision 2, dated December 2010. Attachment 20 contains the Westinghouse Application for Withholding for the Post-Accident Monitoring System (PAMS) Licensing Technical Report, WNA-LI-00058-WBT, Revision 2, dated December 2010.
For Item 4, Attachment 9 contains the Westinghouse document Nuclear Automation Watts Bar 2 NSSS Completion Program I&C Projects, Post Accident Monitoring System Test Plan, WNA-PT-00138-WBT, Revision 0, dated November 2010. Attachment 10 contains the Westinghouse Application for Withholding for the WNA-PT-00138-WBT, Revision 0 Nuclear Automation Watts Bar 2 NSSS Completion Program I&C Projects, Post Accident Monitoring System Test Plan, WNA-PT-00138-WBT, Revision 0, dated November 17, 2010.
version of this report was docketed for the Common Q topical report; therefore, there should be no problem to docket this version. (4) Per ML091560352, the testing process document does not address the test plan requirements of the SPM.
Please provide a test plan that implements the requirements of the SPM.
043 7.5.2 7.5.1 EICB (Carte) 2/19/2010 The PAMS ISG6 compliance matrix supplied as Enclosure 1 to TVA letter dated February 5, 2010 is a first draft of the information needed. The shortcomings of the first three lines in the matrix are:
Line 1: Section 11 of the Common Q topical report did include a commercial grade dedication program, but this program was not approved in the associated SE. Westinghouse stated that this was the program and it could now be reviewed. The NRC stated that TVA should identified what they believe was previously reviewed and approved.
Line 2: TVA stated the D3 analysis was not applicable to PAMS, but provided no justification. The NRC asked for justification since SRP Chapter 7.5 identified SRM to SECV-93-087 Item II.Q as being SRP acceptance criteria for PAMS.
Line 3: TVA identified that the Design report for computer integrity was completed as part of the common Q topical report. The NRC noted that this report is applicable for a system in a plant, and the CQ topical report did no specifically address this PAMS system at Watts Bar Unit 2.
NRC then concluded that TVA should go through and provide a more complete and thorough compliance matrix.
Responder: WEC Date: 5/25/10 The PAMS ISG6 compliance matrix supplied as Enclosure 1 to TVA letter dated February 5, 2010 is a first draft of the information needed.
By letter dated April 8, 2010 TVA provided the PAMS Licensing Technical Report provided additional information.
contains the revised Common Q PAMS ISG-6 Compliance Matrix, dated June 11, 2010, that addresses these items (Reference 13).
By letter Dated June 18, 2010 (see Attachment 3) TVA provided a table, "Watts Bar 2 - Common Q PAMS ISG-6 Compliance Matrix."
It is TVAs understanding that this comment is focused on the fact that there are documents that NRC has requested that are currently listed as being available for audit at the Westinghouse offices. For those Common Q PAMS documents that are TVA deliverable documents from Westinghouse, TVA has agreed to provide those to NRC.
Westinghouse documents that are not deliverable to TVA will be available for audit as stated above. Requirements Traceability Matrix issues will be tracked under NRC RAI Matrix Items 142 (Software Requirements Specification) and 145 (System Design Specification). Commercial Item Dedication issues will be tracked under NRC RAI Matrix Item 138. This item is considered closed.
TVA Response to Follow-up NRC Request:
WNA-LI-00058-WT-P, Revision 2, Post-Accident Monitoring System (PAMS) Licensing Technical Report submitted in TVA Letter to NRC dated December 3, 2010, (Reference 1)
- 2.
N Open Revised response included in letter dated 12/22/10.
Response is included in letter dated 10/5/10.
Revised compliance matrix is unacceptable.
NNC 8/12/10: It is not quite enough to provide all of the documents requested. There are two possible routes to review that the NRC can undertake: (1) follow ISG6, and (2) follow the CQ SPM. The TVA response that was originally pursued was to follow ISG6, but some of the compliance items for ISG6 were addressed by referencing the SPM. The NRC approved the CQ TR and associated SPM; it may be more appropriate to review the WBN2 PAMS application to for adherence to the SPM that to ISG6. In either path chosen, the applicant should provide documents and a justification for the acceptability of any deviation from the path chosen. For example, it appears that the Open-NRC Review Due 12/1/10 EICB RAI ML102910002 Item No. 2 TVA Letter dated 2/5/10 TVA Letter dated 5/12/10 TVA Letter dated 6/18/10 TVA Letter dated 10/5/10 NNC 8/25/10: A CQ PAMS ISG6 compliance matrix was docketed on: (1)
February, 5 12010, (2) March 12, 2010,
& (3) June 18, 2010. The staff has expressed issued with all of these compliance evaluations. The staff is still waiting for a good compliance evaluation.
NNC 11/23/10: WNA-LI-00058-WT-P Rev. 1 Section 7 does not include the RSED documents, and it should. Table 6-1 Item No. 15 should also include the RSED RTMs.
Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad49E5C.docx Open Items to be Resolved for SER Approval No.
SE Sec.
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Response
Acceptable Y/N Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments contains the following changes to address the NRC requests:
(1) While RSEDs are not specifically mentioned, Section 7 has been revised to be applicable to both hardware and software which includes the RSEDs.
(2) Table 6-1 item 15 reference added for WNA-VR-00280-WBT (RESD)
Westinghouse's CDIs are commercial grade dedication plans, but Westinghouse maintains that they are commercial grade dedication reports; this apparent deviation should be justified or explained.
050 7.5.2 7.5.1 EICB (Carte) 4/8/2010 How should the "shall" statements outside of the bracketed requirements in Common Q requirements documents be interpreted?
Responder: WEC Date: 5/25/10 These sections are descriptive text and not requirements.
The next revision of the Watts Bar Unit 2 PAMS System Requirements Specification will remove shall from the wording in those sections. A date for completing the next revision of the System Requirements Specification will be provided no later than August 31, 2010.
The System Requirements Specification will be revised by September 30, 2010 and submitted within two of receipt from Westinghouse.
TVA Revised Response Shall statements within the scope of the System Requirements Specification (SysRS) and System Design Specification (SysDS) were reviewed by Westinghouse. The statements were either relocated to the numbered requirements section or the wording was changed to identify that it was not a requirement. This item is resolved by submittal of revision 2 of the SysRS and the SysDS (attachments 7 and 8 of TVA Letter to NRC dated 10/25/10).
TVA Response to Follow-up NRC Request:
This item is corrected in the revision 3 requirements documents.
contains the proprietary version of WNA-DS-01617-WBT-P, Revision 3, Post Accident Monitoring System-System Requirements Specification, dated November 2010. Attachment 2 contains the non-proprietary version WNA-DS-01617-WBT-NP, Revision 3, Post Accident Monitoring System - System Requirements Specification, dated December 2010. Attachment 3 contains the Application for Withholding Proprietary Information from Public Disclosure, WNA-DS-01617-WBT-P, Revision 3, Nuclear Automation Watts Bar 2 NSSS Completion Program I&C Projects, Post Accident Monitoring System - System Requirements Specification (Proprietary),
dated December 6, 2010.
contains the proprietary version of WNA-DS-01667-WBT-P, Revision 3, Post Accident Monitoring System - System Design Specification, dated November 2010. Attachment 5 contains the non-proprietary version WNA-DS-01667-WBT-NP, Revision 3, Post Accident Monitoring System - System Design Specification, dated December 2010. Attachment 6 contains the Application for
- 3.
N Open Revised response included in letter dated 12/22/10.
TVA response is inconsistent (e.g., WNA-DS-01667-WBT Rev. 1 page 1-1, Section 1.3.1 implies that "SysRS Section
- " has requirements. See also SDS4.4.2.1-1 on page 4-32).
Is there a requirement on the shall referenced above??
Response is provided in letter dated 10/29/10.
TVA Revised Response in TVA Letter dated 10/29/10 Enclosure 1 Item No. 1 is Acceptable NNC 11/18/10: Revised Response is not a statement of fact. SysRS Rev. 2 (i.e., WNA-DS-01617-WBT Rev. 2) contains many shalls that are not within numbered requirements sections, for example:
(1) Page 2-1, Section 2.3.1 -
See guidance statement (2) Page 2-10, top of page 1 -
See guidance statement Open-NRC Review Due12/22/10 Discuss at 11/22 phone call.
This will be corrected in the Revision 3 document due to TVA 12/10/10 EICB RAI ML102910002 Item No. 8 TVA Letter dated 6/18/10 TVA Letter dated 10/29/10 Item No. 1 NNC 11/18/10: SysRS Rev. 2 contains several Reference 8, however, Reference 8 has been deleted.
Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad49E5C.docx Open Items to be Resolved for SER Approval No.
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Acceptable Y/N Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Withholding Proprietary Information from Public Disclosure, WNA-DS-01667-WBT-P, Revision 3, Nuclear Automation Watts Bar 2 NSSS Completion Program I&C Projects Post Accident Monitoring System - System Design Specification (Proprietary), dated December 6, 2010.
contains the proprietary version of WNA-SD-00239-WBT-P, Revision 3, Software Requirements Specification for the Post Accident Monitoring System, dated November 2010. Attachment 8 contains the non-proprietary version WWNA-SD-00239-WBT-NP, Revision 3, Software Requirements Specification for the Post Accident Monitoring System, dated December 2010. Attachment 9 contains the Application for Withholding Proprietary Information from Public Disclosure, WNA-SD-00239-WBT-P, Revision 3, Nuclear Automation Watts Bar 2 NSSS Completion Program I&C Projects, Software Requirements Specification for the Post Accident Monitoring System (Proprietary), dated December 8, 2010.
067 7.5.2 7.5.1 EICB (Carte)
By letter dated March 12, 2010 TVA stated that the target submittal date for the "Commercial Grade Dedication Instructions for AI687, AI688, Upgraded PC node box and flat panels." was September 28, 2010.
Responder: WEC Date: 5/25/10 The following status is from the revised WB2 Common Q PAMS ISG-6 Compliance Matrix submitted in response to Item 43:
- a. AI687, AI688 - Scheduled for September 28, 2010
- b. Upgraded PC node box and flat panel displays - Per Westinghouse letter WBT-D-2024 (Reference 7), these items are available for audit at the Westinghouse Rockville office.
- c. Power supplies - Per Westinghouse letter WBT-D-2035 (Reference 12), these items are available for audit at the Westinghouse Rockville office.
To be addressed during 9/20-9/21 audit TVA Response to Follow-up NRC Request:
WNA-LI-00058-WT-P, Revision 2, Post-Accident Monitoring System (PAMS) Licensing Technical Report submitted in TVA Letter to NRC dated December 3, 2010, (Reference 1) contains the following change to address the NRC request:
Section 7, Commercial Grade Dedication Process, has been revised to describe the general commercial grade dedication process for both hardware and software and uses a description of the AI687 dedication process as an example of how the process is applied.
- 4.
N Open Response included in letter dated 12/22/10.
This item is addressed in Rev. 2 of the Licensing Technical Report Open-NRC Review Due 12/3/10 N/A - No question was asked. Item was opened to track comm8ittment made by applicant.
TVA Letter dated 6/18/10 068 7.5.2 7.5.1 EICB (Carte)
By letter dated March 12, 2010 TVA stated that the target submittal date for the "Summary Report on acceptance of AI687, AI688, Upgraded PC node box, flat panels, and power supplies." was September 28, 2010.
Responder: WEC Date: 5/25/10 The following status is from the revised WB2 Common Q PAMS ISG-6 Compliance Matrix submitted in response to Item 43:
- a. AI687, AI688 - Scheduled for September 28, 2010
- 5.
N Open Response included in letter dated 12/22/10.
This item is addressed in Rev. 2 of the Licensing Technical Open-NRC Review Due 12/3/10 N/A - No question was asked. Item was opened to track comm8ittment made by applicant.
TVA Letter dated 6/18/10
Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad49E5C.docx Open Items to be Resolved for SER Approval No.
SE Sec.
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Acceptable Y/N Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments
- b. Upgraded PC node box - Per Westinghouse letter WBT-D-2024 (Reference 7), this item is available for audit at the Westinghouse Rockville office.
- c. Flat panel displays - Per Westinghouse letter WBT-D-2024 (Reference 7), this item is available for audit at the Westinghouse Rockville office.
- d. Power supplies - Per Westinghouse letter WBT-D-2035 (Reference 12), these items are available for audit at the Westinghouse Rockville office.
To be addressed during 9/20-9/21 audit TVA Response to Follow-up NRC Request:
For the commercial grade dedication process, please see the response to Request for Additional Information (RAI) item 3 in this letter, NRC Matrix Item 067.
The component level EQ/Seismic summary reports for the hardware listed above are available for NRC review/audit as described below:
(1) AI687 and AI688, the following documents were submitted in TVA Letter to NRC dated October 26, 2010, Watts Bar Nuclear Plant (WBN) Unit 2 -
Instrumentation and Controls Staff Information Requests, (Reference 5):
- a.
EQ-EV-62-WBT, Revision 0, Common Q PAMS Comparison of Tested Conditions for the AI687 and AI688 Common Q Modules and Supporting Components to the Watts Bar Unit 2 (WBT)
Requirements, dated September 10, 2010
- b.
EQLR-171, Revision 0, Environmental and Seismic Test Report, Analog Input (AI)687 &
AI688 Modules for use in Common Q PAMS, dated September 10, 2010
- c.
CN-EQT-10-44, Revision 0, Dynamic Similarity Analysis for the Watts Bar Unit 2 Post Accident Monitoring System (PAMS), dated September 28, 2010 (2) Upgraded PC Node Box - As stated in Westinghouse letter WBT-D-2024, dated June 9, 2010 NRC Access to Common Q Documents at the Westinghouse Rockville Office, (Reference 6), the following documents are available for NRC audit at the Westinghouse Rockville office:
- a.
CDI-3722, Revision 7, Next Generation PC Node Box Commercial Dedication Instruction
- b.
LTR-EQ-10-50 PC Node Box/Flat Panel Display System Components Qualification Summary (3) Flat Panel Displays - As stated in Westinghouse letter WBT-D-2024, dated June 9, 2010 NRC Access to Common Q Documents at the Westinghouse Rockville Office, (Reference 6), the following documents are available for NRC audit at the Westinghouse Rockville Report
Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad49E5C.docx Open Items to be Resolved for SER Approval No.
SE Sec.
FSAR Sec.
Response
Acceptable Y/N Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments office:
- a.
CDI-3803, Revision 8, Next Generation Flat Panel Display (FPD) Commercial Dedication Instruction
- b.
LTR-EQ-10-50 PC Node Box/Flat Panel Display System Components Qualification Summary (4) Power supplies - As stated in Westinghouse letter WBT-D-2035 dated June 11, 2010 NRC Access to Common Q Documents at the Westinghouse Rockville Office (Reference 7), the following documents are available for NRC audit at the Westinghouse Rockville office:
- a.
CDI-4057, Revision 4, Commercial Dedication Instruction
- b.
EQ-TP-1 05-GEN, Revision 0, Electromagnetic Compatibility Test Plan and Procedure for Quint Power Supplies and Safety System Line Filter
- c.
Breakers, EQ-TP-114-GEN, Revision 0, Seismic Qualification Test Procedure For Common Q Power Supplies, Quint Power Supplies, Line Filter Assemblies, and South Texas Units 3 & 4 Circuit
- d.
EQ-TP-117-GEN, Revision 0, Environmental Qualification Test Procedure For Common Q Powe Supplies, Quint Power Supplies, and Line Filter Assemblies 070 7.5.2 7.5.1 EICB (Carte)
By letter dated March 12, 2010 TVA stated that the target submittal date for the "Concept and Definition Phase V&V Report" was March 31, 2010.
Responder: WEC Date: 5/25/10 Per Westinghouse letter WBT-D-1961, this document is available for audit at the Westinghouse Rockville office.
WNA-VR- 00283-WBT, Rev 0 was submitted on TVA letter to the NRC dated August 20, 2010.
The submitted V&V did not address the Requirements Traceability Matrix and did not summarize anomalies. At the September 15th public meeting, Westinghouse agreed to include the Concept and Definitions Phase Requirements Traceability Matrix (RTM) in the next IV&V report along with partial Design Phase updates to the RTM.
TVA Revised Response:
TVA submitted WNA-VR- 00283-WBT, Rev 0 to NRC in letter dated August 20, 2010 (Reference 6).
The next Independent Verification and Validation (IV&V) report will include the Design Phase Requirements Traceability Matrix. The Design Phase IV&V Report will be submitted to NRC by February 11, 2011.
4contains the Westinghouse document Nuclear Automation Watts Bar Unit 2 NSSS Completion Program I&C Projects, IV&V Summary Report for the Post Accident Monitoring System, WNA-VR-00283-WBT, Revision 1, dated November 2010. Attachment 15 contains the Westinghouse Application for Withholding for the WNA-VR-00283-WBT, Revision 1, Nuclear Automation Watts Bar Unit 2 NSSS Completion Program I&C Projects, IV&V
- 6.
N Open Final Response included in letter dated 12/3/10 Partial Response is included in letter dated 10/5/10.
Regulations require that the NRC review be based on docketed material. Awaiting for document to be docketed by TVA.
NNC 8/25/10: Requirements Phase SVVR provided by TVA letter dated 8/20/10.
NNC 11/23/10: The requirements Phase SVVR provided by TVA on 8/20/10, is not complete. This report should address the RTM, which it did not. TVA/WEC agreed to address the concept phase RTM in the next revision.
Open-NRC Review Due 12/17/10 N/A - No question was asked. Item was opened to track comm8ittment made by applicant.
TVA Letter dated 6/18/10 TVA Letter dated 8/20/10 TVA Letter dated 10/5/10 NNC 11/23/10: The dues date in this open item does not agree with the due dated in Open Item No. 71.
Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad49E5C.docx Open Items to be Resolved for SER Approval No.
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Acceptable Y/N Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Summary Report for the Post Accident Monitoring System, dated November 8, 2010.
NOTE: Due to document sequencing, this IV&V Phase Summary Report references a previous version of the contract compliance matrix. Refer to the Licensing Technical Report Revision 2 (Attachment
- 19) for the current contract compliance matrix.
071 7.5.2 7.5.1 EICB (Carte)
By letter dated March 12, 2010 TVA stated that the target submittal date for Revision 2 of the I V&V Report" covering the Design and Implementation phases was July 30, 2010.
Responder: WEC Date: 5/25/10 6 contains the Westinghouse document IV&V Summary Report for the Post Accident Monitoring System, WNA-VR-00283-WBT, Revision 2, dated November 2010. 7 contains the Westinghouse Application for withholding for the IV&V Summary Report for the Post Accident Monitoring System, WNA-VR-00283-WBT, Revision 2, dated November 2010.
NOTE: Due to document sequencing, this IV&V Phase Summary Report references a previous version of the contract compliance matrix. Refer to the Licensing Technical Report Revision 2 (Attachment
- 19) for the current contract compliance matrix.
- 7.
N Open Response included in letter dated 12/3/10 Awaiting for document to be docketed by TVA.
Open-NRC Review Due 12/10/10 N/A - No question was asked. Item was opened to track commitment made by applicant.
N/A NNC 11/23/10: The dues date in this open item does not agree with the due dated in Open Item No. 70.
073 7.5.2 7.5.1 EICB (Carte)
By letter dated March 12, 2010 TVA stated that the target submittal date for Revision 3 of the IV&V Report covering the Integration phase was October 29, 2010.
Responder: WEC Date: 5/25/10 WNA-VR-00283-WBT, Revision 3, IV&V Summary Report for the Post Accident Monitoring System, covers the Integration phase. Attachment 10 contains the proprietary version of IV&V Summary Report for the Post Accident Monitoring System, WNA-VR-00283-WBT-P, Revision 3, dated December 2010. Attachment 11 contains the non-proprietary version IV&V Summary Report for the Post Accident Monitoring System, WNA-VR-00283-WBT-NP, Revision 3, dated December 2010. Attachment 12 contains the Application For Withholding Proprietary Information From Public Disclosure WNA-VR-00283-WBT, Revision 3, Nuclear Automation Watts Bar 2 NSSS Completion Program I&C Projects, IV &V Summary Report for the Post Accident Monitoring System (Proprietary), dated December 10, 2010.
- 8.
N Open Response included in letter dated 12/22/10 Awaiting for document to be docketed by TVA.
Open-NRC Review Due 12/22/10 N/A - No question was asked. Item was opened to track commitment made by applicant.
N/A 075 7.5.2 7.5.1 EICB (Carte)
By letter dated March 12, 2010 TVA stated that the target submittal date for the "Watts Bar 2 PAMS Specific FAT Procedure" was September 30, 2010.
Responder: WEC Date: 5/25/10 2 contains the Westinghouse document Nuclear Automation Watts Bar Unit 2 NSSS Completion Program I&C Projects, Post Accident Monitoring System Channel Integration Test/Factory Acceptance Test, WNA-TP-02988-WBT, Revision 0, dated November 2010. 3 contains the Westinghouse Application for Withholding for WNA-TP-02988-WBT, Revision 0,Nuclear Automation Watts Bar Unit 2 NSSS Completion Program I&C Projects, Post Accident Monitoring System Channel Integration Test/Factory Acceptance Test, dated November 2010.
- 9.
N Open Response included in letter dated 12/3/10 Awaiting for document to be docketed by TVA.
Open-NRC Review Due 12/3/10 N/A - No question was asked. Item was opened to track commitment made by applicant.
N/A 082 7.5.2 7.5.1 EICB (Carte) 5/6/2010 The PAMS Licensing Technical Report (WNA-LI-00058-WBT Rev.
0, Dated April 2010), in Section 2.3, lists hardware/software Responder: WEC Date: 6/18/10 These components can be found in the Summary Qualification Report Of Hardware Testing For Common Q
- 10.
N Open Revised response included in letter dated 12/22/10 Open-NRC Review Due 12/3/10 EICB RAI ML102910002 Item No. 10 TVA Letter dated 7/30/10 NNC 11/18/10: See also Open Item No.
41, Item No. 3.
Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad49E5C.docx Open Items to be Resolved for SER Approval No.
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Acceptable Y/N Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments changes to the Common Q PAMS previously reviewed by the NRC. However the Common Q ISG-6 Compliance Matrix does not contain activities that address qualification of all changes specifically:
2.c - CI527 AF100 Peripheral Component Interconnect (PCI) interface card
- 3. - Common Q TC514 AF100 Fiber Optic Modems (Evolutionary Product Maintenance/Improvements) 4.a - PM646A Processor Module 4.b - CI631 AF100 Communication Interface Module 4.e - DO620 Digital Output Card Please provide sufficient detail regarding the changes for the NRC to independently evaluate the acceptability of the changes.
Applications, 00000-ICE-37764, Rev 3 and TWICE Qualification Status Report, WNAQR-00011-SSP Per Westinghouse letter WBT-D-2024, (Reference __) dated June 9, 2010, these documents are available for audit at the Westinghouse Rockville Office.
TVA provided information by letter dated July 30, 2010 (ML102160349) - See Enclosure 1 Item No. 7.
Revision 1 of the Licensing Technical Report provides additional detail on the platform specific to WBN2 and references to the evaluation documentation.
TVA Response to Follow-up NRC Request:
Please see the response to Request for Additional Information (RAI) item 3 in letter dated 12/22/10, NRC Matrix Item 067.
Regulations require that the NRC review be based on docketed material. Awaiting for document to be docketed by TVA.
NNC 8/9/10: per telephone conversation on 8/5/10, it is not clear how Westinghouse Commercial Grade Dedication Plans and Reports for Digital I&C. Westinghouse agree to present to the NRC in a public meeting on August 17, 2010, and explanation of how their system addresses regulatory criteria for both commercial grade dedication and equipment qualification.
NNC 8/25/10: In the August 17, 2010 public meeting Westinghouse stated that the CDI were the plans. The NRC requested that the plans and associated reports be docketed.
NNC 11/18/10: During the September 20-21, 2010 audit, TVA agreed to put a description of the commercial grade dedication program and implementation in Rev. 2 of the CQ PAMS LTR.
Commercial Grade Dedication to be addressed in LTR Rev.
2, 085 7.5.2 7.5.1 EICB (Carte) 5/6/2010 Please provide a detailed description of the PAMS MTP data link to the plant computer. This description should identify all equipment (model & version) and describe the functions that each piece of equipment performs. This description should be of sufficient detail for the NRC to independently evaluate the statements made in WNA-LI-00058-WBT Rev. 0, Section 5.3.
Responder: WEC Is the WEC ISG4 evaluation inadequate?
Operation of the MTP as a barrier device. MTP Fails as a barrier device. Describe what prevents a MTP failure from propagating to the AC160?
Node loss on the bus? Bus loss?
Revise the ISG4 section of the Licensing Technical Report (Rev. 2) to provide a more detailed description of the MTP as a barrier device.
TVA Response to Follow-up NRC Request:
WNA-LI-00058-WBT-P, Revision 2, Post-Accident Monitoring System (PAMS) Licensing Technical Report submitted in TVA letter to NRC dated December 3, 2010 (Reference 1), contains the following changes to address the NRC requests:
Section 2.2, System Description page 2-3 provides a
- 11.
N Open Revised response included in letter dated 12/22/10 A response will be provided by 10/31/10 NNC 8/11/10: Design information should be available now. By letter dated July 30, 2010 (ML102160349) TVA stated that the MTP was connected to a Red Hat Linux Server (see Enclosure 1, Item No. 14 part b.). It is presumed that this server is not safety-related. IEEE 603-1991 Clause 5.6.3(1) states, "Isolation devices used to affect a safety system boundary shall be classified as part of the safety system."
Open-NRC Review Due 12/3/10 Hardware is in Rev. 1 of the Licensing Technical Report due 10/22.
NNC 8/25/10:
Disagree with path forward input by TVA above. An explanation is about the design is needed.
FAT test procedure to include data storm testing of the MTP interface NNC 11/18/10: WEC response states that EICB RAI ML102910002 Item No. 13
Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad49E5C.docx Open Items to be Resolved for SER Approval No.
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Acceptable Y/N Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments description of the MTP Fiber-Optic (FO) data link to the plant computer. Section 2.2.1.4, Hardware has been expanded to include a table detailing all hardware changes that have occurred since the initial submittal. Section 2.2.2, Software has been expanded to include a table detailing all software changes that have occurred since the initial submittal.
Please describe how the MTP serves as the isolation device.
CQ PAMS LTR Rev. 2 will contain relevant information.
101 DORL (Poole) 4/12/2010 The non-proprietary versions of the following RM-1000, Containment High Range Post Accident Radiation Monitor documents will be provided by June 30, 2010.
- 1. V&V Report 04508006A
- 2. System Description 04508100-1TM
- 3. Qualification Reports 04508905-QR, 04508905-1 SP, 04508905-2SP, 04508905-3SP
- 4. Functional Testing Report 04507007-1TR Responder: Slifer The documents, and affidavits for withholding for the listed documents were submitted to the NRC on TVA letter to the NRC dated July 15, 2010.
- 12.
Y Open Documents provided in letter dated 07/15/10 Open-NRC Review Due 10/14/10 Confirm receipt.
N/A TVA is working with the vendor to meet the 6/30 date, however there is the potential this will slip to 7/14.
117 7.1 7.1 EICB (Garg) 6/3/2010 Does TVA use a single sided or double sided methodology for as-found and as-left instrument setpoint values. (RIS2006-7)
Responder: Hilmes Reactor Protection System (RPS) (comprised of Reactor Trip (RPS) and Engineered Safety Features Actuation System (ESFAS)) setpoint values are monitored by periodic performance of surveillance tests in accordance with Technical Specification requirements. TVA uses double-sided as-found and as-left tolerances for Reactor Trip and ESFAS trip setpoint surveillance tests as described in FSAR amendment 100.
TVA Revised Response:
For TSTF-493 parameters WBN Unit 2 uses only double sided correction factors. Attachment 3 contains the revised FSAR section 7.1.2.1.9 that will be included in FSAR Amendment 102 that reflects this change.
- 13.
Y Open Revised response is included in letter dated 10/29/10 Open-NRC Review Pending FSAR Amendment 102 submittal Due 12/17/10 TVA needs to address that trip setpoint and allowable value uncertainties are not reduced by the reduction factor for the single sided reduction factor. TVA response not acceptable. TVA need to clarify if single sided methodology has been used in calculating trip setpoint and allowable value and if it is used then provide justifications.
EICB RAI ML102910008 Item#21 TVA Letter dated 10/29/10 Item No. 7 138 EICB (Carte)
By letter dated February 3, 2010, Westinghouse informed TVA that certain PAMS documentation has been completed.
(a) The draft ISG6 states that a commercial grade dedication plan should be provided with an application for a Tier 2 review.
By letter dated February 5, 2010, TVA stated that the commercial grade dedication plan was included in the Common Q Topical Report Section 11, Commercial Grade Dedication Program.
Section 11 includes a description of the Common Q Commercial Grade Dedication Program, and states: A detailed review plan is developed for each Common Q hardware or software component that requires commercial grade dedication.
Please provide the commercial grade dedication plans for each Common Q hardware or software component that has not been previously reviewed and approved by the NRC.
Responder: WEC This item is used to track all Commercial Grade Dedication issues.
- a.
WNA-LI-00058-WT-P, Revision 2, Post-Accident Monitoring System (PAMS) Licensing Technical Report submitted in TVA Letter to NRC dated December 3, 2010, (Reference 1) contains the following changes to address the NRC request:
Section 7, Commercial Grade Dedication Process has been revised to describe the general commercial grade dedication process for both hardware and software and uses a description of the AI687 dedication process as an example of how the process is applied.
- 14.
N Open Revised response included in letter dated 12/22/10 TVA agreed to include a description of the generic Westinghouse hardware commercial grade dedication process in the PAMS licensing technical report. (see ML102920031 Item No 1)
TVA agreed to include (in the PAMS licensing technical report) an evaluation of WBN2 critical characteristics for commercial Open-NRC Review Due 12/3/10 To be addressed by Rev. 2 of the Licensing Technical Report.
ML101650255, Item No. 2
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Acceptable Y/N Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments (b) The draft ISG6 states that a commercial grade dedication report should be provided within 12 months of requested approval for a Tier 2 review.
(i) Please provide 00000-ICE-37722 Rev. 0, Commercial Grade Dedication Report for the QNX Operating System for Common Q Applications.
(ii) Please provide WNA-CD-00018-GEN Rev. 3, Commercial Dedication Report for QNX 4.25G for Common Q Applications.
As listed in Table 6-3. Westinghouse Watts Bar 2 Common Q PAMS Documents at Westinghouse Rockville Office, the following commercial grade dedication documents are available for NRC audit at the Westinghouse Rockville office: (list included in letter)
- b.
It is TVAs understanding that the submittal of the documents listed in (b.i) and (b.ii) is no longer required.
Rather, it was agreed, that the inclusion of a description of the commercial grade dedication process in revision 2 of the Post-Accident Monitoring System (PAMS)
Licensing Technical Report, WNA-LI-00058-WT-P, would be sufficient to address this request.
Westinghouse hardware components against the generic critical characteristics. (see ML102920031 Item No 2)
TVA agreed to include a description of the generic Westinghouse software commercial grade dedication process in the PAMS licensing technical report. (see ML102920031 Item No 3)
TVA agreed to include (in the PAMS licensing technical report) an evaluation of WBN2 critical characteristics for commercial software components against the generic critical characteristics. (see ML102920031 Item No 4) 140 EICB (Carte)
The first requirement in the WBN2 PAMS SysRS (i.e., R2.2-1) states: The PAMS shall be capable of operation during normal and abnormal environments and plant operating modes. The rational for this requirement is that it is necessary to meet Regulatory Guide (RG) 1.97.
What document specifies which RG 1.97 variables are implemented in the Common Q based WBN2 PAMS?
Responder: Clark WBN Unit 2 FSAR Amendment 100 Section 7.5.1.8, Post Accident Monitoring System (PAMS) specifies the Reg.
Guide 1.97 variables implemented in the Common Q based WBN Unit 2 PAMS TVA Response to Follow-up NRC Request:
WNA-LI-00058-WT-P, Revision 2, Post-Accident Monitoring System (PAMS) Licensing Technical Report was submitted in TVA Letter to NRC, dated December 3, 2010 (Reference 1). Revision 2 contains the following change to address this request:
Section 11, TVA Contract Compliance Matrix has been added. Specifically the items of concern are addressed by Requirements 7 through 19 (pages 11-1 and 11-2).
- 15.
N Open Revised response included in letter dated 12/22/10 NNC 11/3/10: The origin of the requirements in the SysRS are not clearly document. Rev. 1 of the Common Q PAMS Licensing Technical Report contains an open item that will be addressed in Rev. 2; this open item is to include TVAs enhanced contract compliance matrix. It is expected that this matrix will address this open item.
Open-NRC Review Due 12/3/10 TVA to docket PAMS Licensing Technical Report Rev. 2.
ML101650255, Item No. 4 TVA Letter dated 10/29/10 Item No. 10 WBN2 PAMS System Requirements Specification TVA docketed WNA-DS-01617-WBT Rev. 1, RRAS Watts Bar 2 NSSS Completion Program I&C Projects Post Accident Monitoring System-System Requirements Specification, dated December 2009.
142 EICB (Carte)
The applicable regulatory guidance for reviewing the WBN2 PAMS SysRS would be IEEE 830 as endorsed by Regulatory Guide 1.172 and BTP 7-14 Section B.3.3.1, Requirements Activities -
Software Requirements Specifications. IEEE 830-1994 Section 4.3.8, Traceable, states: A [requirements specification] is traceable of the origin of each of its requirements is clear
- 1.
How did TVA ensure the traceability of each requirement in the WBN2 PAMS SysRS.
- 2.
Explain the source(s) of the requirements present in the Post Accident Monitoring Systems Software Requirements Specification. To clarify, many documents have requirements that are incorporated by reference into the SRS, but what served to direct the author to include those various documents in the SRS or, if the requirement is based on the System Requirements Specification, what directed the author to include the requirement there?
Responder: WEC This item is used to track all traceability issues with the Software Requirements Specification (SRS).
- 1.
How did TVA ensure the traceability of each requirement in the WBN2 PAMS SysRS.
TVA Response:
Traceability of requirements for the WBN Unit 2 Common Q PAMS is ensured by:
- a.
Preparation of the TVA Contract Compliance Matrix contained in WNA-LI-00058-WBT-P, Revision 2, Post-Accident Monitoring System (PAMS)
Licensing Technical Report submitted in TVA Letter to NRC dated December 3, 2010 (Reference 1).
- 16.
N Open Response included in letter dated 12/22/10 TVA/Westinghouse agreed to include the V&V evaluation of their reusable software element development process in the V&V design phase summary report. This evaluation would include an evaluation against the development process requirements. This evaluation would also include an evaluation of how the WBN2 specific requirements were addressed by the reusable software elements. (see ML102920031 Open-NRC Review Due 12/22/10 To be addressed by Revision of the RTM, SRS, SysRS, and SysDS.
ML101650255, Item No. 6 WBN2 PAMS System Requirements Specification TVA docketed WNA-DS-01617-WBT Rev. 1, RRAS Watts Bar 2 NSSS Completion Program I&C Projects Post Accident Monitoring System-System Requirements Specification, dated December 2009.
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Acceptable Y/N Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments
- 3.
Clarify whether the unnumbered paragraphs in the Post Accident Monitoring Systems Software Requirements Specification, such as in the section headings, or are all such sections simply considered to be informative?
Does the same apply to documents referenced by the SRS?
Such as WCAP-16096-NP-A, Rev. 1A, Software Program Manual for Common Q Systems, which is incorporated by reference in requirement R2.3-2 in the SRS.
R2.3-2 [The PAMS software shall comply with the requirements and guidelines defined in WCAP-16096-NP-A, Software Program Manual for Common Q Systems (reference 5).]
If any requirements are expressed in such unnumbered paragraph form instead of individually identified requirements, please list them, describe why they satisfy the fundamental requirement of unambiguity, and describe how they were verified.
- 4.
Are there any sources of requirements in parallel with the Post Accident Monitoring Systems Software Requirements Specification? Meaning does the SRS contain, explicitly or by reference, all the requirements that were used in the design phase for the application specific software, or do software design phase activities use requirements found in any other source or document? If so, what are these sources or documents?
- 5.
References 12, 27, 29, and 31-44 in the Post Accident Monitoring Systems Software Requirements Specification are various types of Reusable Software Element.
These references are used in the body of the SRS, for example:
R5.3.14-2 [The Addressable Constants CRC error signal shall be TRUE when any CAL CRC's respective ERROR terminal = TRUE (WNA-DS-00315-GEN, "Reusable Software Element Document CRC for Calibration Data" [Reference 12]).]
They are also included via tables such as found in requirement R7.1.2-1
[The Watts Bar 2 PAMS shall use the application-specific type circuits and custom PC elements listed in Table 7.1-1.]
Do the referenced reusable software element documents include requirements not explicitly stated in the SRS? If so what is their origin?
- b. Engineering review/comment/status of each revision of:
- i.
WNA-DS-01617-WBT, Post Accident Monitoring System - System Requirements Specification ii.
WNA-DS-01667-WBT, Post Accident Monitoring System - System Design Specification (hardware) iii.
WNA-SD-00239-WBT, Software Requirements Specification for the Post Accident Monitoring System (software)
- 2.
Explain the source(s) of the requirements present in the Post Accident Monitoring Systems Software Requirements Specification. To clarify, many documents have requirements that are incorporated by reference into the Software Requirements Specification (SRS), but what served to direct the author to include those various documents in the SRS or, if the requirement is based on the System Requirements Specification, what directed the author to include the requirement there?
TVA Response:
As documented in the RTM, some software requirements are taken from generic documents. The decision to include generic software requirements was to reduce the overall scope for Common Q features that are unchanged across projects. Westinghouse reviewed the generic PAMS requirements and included those requirements that were applicable to WBN Unit 2 PAMS.
Source: E-mail from Westinghouse (Matthew A.
Shakun) to Bechtel (Mark S. Clark), RE: December 22 letter review, dated December 17, 2010 (Reference 13)
- 3.
Clarify whether the unnumbered paragraphs in the Post Accident Monitoring Systems Software Requirements Specification, such as in the section headings, contain requirements or are all such sections simply considered to be informative?
Does the same apply to documents referenced by the SRS? Such as WCAP-16096-NP-A, Rev. 1A, Software Program Manual for Common Q Systems, which is incorporated by reference in requirement R2.3-2 in the SRS.
R2.3-2 [The PAMS software shall comply with the requirements and guidelines defined in WCAP-16096-NP-A, Software Program Manual for Common Q Systems (reference 5).]
Item No 5)
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Acceptable Y/N Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments If any requirements are expressed in such unnumbered paragraph form instead of individually identified requirements, please list them, describe why they satisfy the fundamental requirement of unambiguity, and describe how they were verified.
TVA Response:
Unnumbered paragraphs in the Post Accident Monitoring Systems Software Requirements Specification, such as in the section headings, are informative and are not to be interpreted as requirements. All requirements are explicitly numbered.
It depends on the document type. The statement would be true for requirements documents (such as the SysRS or SDS) if they were incorporated by reference.
However, for the specific item cited, WCAP-16096-NP-A, Rev. 1A, it does not contain numbered requirements.
The requirements contained in this document are contained within the text of the various sections.
Source: E-mail from Westinghouse (Matthew A.
Shakun) to Bechtel (Mark S. Clark), RE: December 22 letter review, dated December 17, 2010 (Reference 13)
- 4.
Are there any sources of requirements in parallel with the Post Accident Monitoring Systems Software Requirements Specification? Meaning does the SRS contain, explicitly or by reference, all the requirements that were used in the design phase for the application specific software, or do software design phase activities use requirements found in any other source or document? If so, what are these sources or documents?
TVA Response:
The Westinghouse SRS, WNA-SD-00239-WBT, Revision 3 contains references to other Westinghouse software requirements documents. Specifically, 00000-ICE-3238, Revision 5, Software Requirements Specification Post Accident Monitoring System 00000-ICE-3239, Revision 13, Software Requirements Specification for the Common Q Generic Flat Panel Display Software Source: E-mail from Westinghouse (Matthew A.
Shakun) to Bechtel (Mark S. Clark), RE: December 22 letter review, dated December 17, 2010 (Reference 13)
- 5.
References 12, 27, 29, and 31-44 in the Post Accident Monitoring Systems Software Requirements Specification are various types of Reusable Software Element.
These references are used in the body of the SRS, for
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Acceptable Y/N Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments example:
R5.3.14-2 [The Addressable Constants CRC error signal shall be TRUE when any CAL CRC's respective ERROR terminal = TRUE (WNA-DS-00315-GEN, "Reusable Software Element Document CRC for Calibration Data" [Reference 12]).]
They are also included via tables such as found in requirement R7.1.2-1
[The Watts Bar 2 PAMS shall use the application-specific type circuits and custom PC elements listed in Table 7.1-1.]
Do the referenced reusable software element documents include requirements not explicitly stated in the SRS? If so what is their origin?
TVA Response:
Requirements for the reusable software elements (RSEDs) are evaluated in WNA-VR-00283-WBT-P, Revision 3, IV&V Summary Report for the Post Accident Monitoring System, dated December 2010 (Attachment 10).
RSED traceability is contained in WNA-VR-00280-WBT, Revision 2, Watts Bar 2 NSSS Completion Program I&C Projects Requirements Traceability Matrix for the Reactor Vessel Level Indication System (RVLIS)
Custom PC Elements. This document can be made available for audit at the Westinghouse Rockville office.
At the September 15 public meeting in Rockville, the following actions were agreed to. These items address the traceability concerns with the Software Requirements Specification.
- 6.
Westinghouse will perform a review of the Requirements Traceability Matrix(RTM), using the issues identified at the 9/15 public meeting as a guide (documented below) and update the RTM as required.
TVA Response:
Please see response to letter Item 13 (NRC Matrix Item 145).
- 7.
The next issue of the IV&V report will include the Requirements phase review of the RTM and a partial review for the Design phase.
TVA Response:
Please see response to letter Item 13 (NRC Matrix Item 145).
- 8.
Westinghouse will add a comments column in the
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Acceptable Y/N Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Requirements Traceability Matrix (RTM) to address items not in the SRS or SysRS.
TVA Response:
A comments column has been added to WNA-VR-00279-WBT, Revision 3, Watts Bar 2 NSSS Completion Program I&C Projects Requirements Traceability Matrix for the Post Accident Monitoring System.
Source: E-mail from Westinghouse (Matthew A.
Shakun) to Bechtel (Mark S. Clark), RE: December 22 letter review, dated December 17, 2010 (Reference 13)
- 9.
IEEE 830 says you shouldnt have planning information in the SRS. Westinghouse has agreed to remove this information.
TVA Response:
Westinghouse has confirmed that process requirements have been removed from the SRS.
Source: E-mail from Westinghouse (Andrew P. Drake) to Bechtel (Mark S. Clark), RE: Common Q RAI concerns, dated December 8, 2010 (Reference 17)
- 10. IEEE 830 says you shouldnt have process requirements in the SRS. Westinghouse has agreed to remove these requirements.
TVA Response:
Westinghouse confirmed that process requirements have been removed from the SRS.
Source: E-mail from Westinghouse (Andrew P. Drake) to Bechtel (Mark S. Clark), RE: Common Q RAI concerns, dated December 8, 2010 (Reference 17)
- 11. Westinghouse will perform and document an evaluation of the SRS to ensure compliance with Reg. Guide 1.172 and justify any deviations.
TVA Response:
WNA-LI-00058-WBT-P, Revision 2, Post-Accident Monitoring System (PAMS) Licensing Technical Report submitted in TVA Letter to NRC dated December 3, 2010, (Reference 1):
Section 9, Compliance Evaluation Of The Watts Bar 2 PAMS Software Requirements Specification To IEEE Standard 830-1998 And Regulatory Guide 1.172 has been added.
- 12. 25 issues identified by V&V where some requirements have not been included in the System Design
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Acceptable Y/N Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Specification (SDS) (14) and SRS (11) at the revisions reviewed by V&V. Have these been addressed?
TVA Response:
The twenty-five (25) issues are captured in Exception Reports (ERs): V&V-769 and V&V-770. These ERs have all been addressed and the ERs have been closed satisfactorily by Westinghouse IV&V.
Source: E-mail from Westinghouse (Matthew A.
Shakun) to Bechtel (Mark S. Clark), RE: December 22 letter review, dated December 17, 2010 (Reference 13)
- 13. Some hardware requirements are contained in the SRS instead of the System Design Specification (SDS).
These will be removed from the SRS and incorporated into the next revision of the SDS.
TVA Response:
The hardware requirements in the Software Requirements Specification have been deleted and moved to System Design Specification.
Source: E-mail from Westinghouse (Matthew A.
Shakun) to Bechtel (Mark S. Clark), RE: December 22 letter review, dated December 16, 2010 (Reference 15)
- 14. RTM item R4.2-2 protection class software set to 0.
Needs to be fixed internally. Write CAPs to revise the application restrictions document on AC160.
TVA Response:
Westinghouse CAPs IR# 10-259-M034 has been issued. This item will be addressed in revision 4 of the RTM.
Source: E-mail from Westinghouse (Matthew A.
Shakun) to Bechtel (Mark S. Clark), RE: December 22 letter review, dated December 17, 2010 (Reference 13)
- 15. Westinghouse to improve the traceability of the tests that are performed with the function enable (FE) switch in the ENABLE position.
TVA Response:
The tests that are performed with the FE keyswitch in the ENABLE position are defined in the SRS Sections:
6.2 Manually Initiated Testing, 7.2.23 Annunciator Test Display, 7.2.25 Saturation Margin Test Display, and 7.2.26 Analog Output Test Display.
- 16. Westinghouse to revise documents to be consistent with referring to the FE switch in the ENABLE position.
TVA Response:
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Acceptable Y/N Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Westinghouse has elected to standardize on the terms FE keyswitch and ENABLE. A review of recent documents for compliance with this comment and commitment was performed with the following results:
- a.
Revision 3 of the SysRS, and SDS have been revised to use the terms FE keyswitch. Revision 3 of the SDS is consistent in use of the term ENABLE.
- b.
SysRS Revision 3 is not consistent in use of the term ENABLE as noted below:
- i. R2.5.2.1-2 uses the term ENABLED instead of ENABLE ii. R2.5.2.1.3-3, R2.6.3.3-1, R2.6.3.3-2, R2.6.3.3-3, and R2.6.3.3-7, use the term Enable instead of ENABLE
- c.
Revision 3 of the SRS is not consistent in use of the terms FE keyswitch and ENABLE as noted below:
- i. Tables 7.2-1 Train A PAMS Data Transmitted to the Plant Computer and 7.2-2 Train B PAMS Data Transmitted to the Plant Computer items 101 and 102 in the SRS refer to the FE switch.
All other items in the SRS refer to the FE keyswitch.
ii. Section 2.1, page 2-4, uses the term Enable instead of ENABLE iii. Requirements R7.2.14-6 and R7.2.16-7 use the term active instead of ENABLE iv. Requirements R7.2.23-2, R7.2.25-2, R7.2.26-2, R7.2.31-4, 7.2.56 FPDS Availability, and R7.2.57-4 use the term enabled instead of ENABLE
- d.
WNA-AR-00180-WBT-P, Revision 0, Failure Modes and Effects Analysis (FMEA) for the Post Accident Monitoring System, dated October 2010, submitted in TVA letter to NRC dated (Reference
- 12) is not consistent in use of the term FE keyswitch as noted below:
ii. Table 3-1 describes the switch as the Functional Enable (FE) switch and the FE key-switch
- e.
Revision 2 of the Licensing Technical Report is not consistent in use of the term FE keyswitch as noted below:
- i. Sections 2.2, 5.3 use the term (FE) keylock switch on pages 2-3 (2 places), page 5-3, page 5-6 (4 places)
The identified discrepancies in the use of the terms FE keyswitch and ENABLE in the SysRS, SRS, FMEA and Licensing Technical Report, will be corrected in the next revision of the documents.
- 17. The flow of information is from the SysRS to the SDS (hardware) and SRS (software). Describe how the
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Acceptable Y/N Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments documents are used. Describe in 1.1 of the SysRS.
Need a good write up of how the process works.
TVA Response:
Please see response to letter item 13 (NRC Matrix Item 145).
- 18. Westinghouse and TVA will develop a revised schedule for document submittals and provide it to the NRC no later than 9/30/10 TVA Response:
The revised document submittal schedule was included as item 3 NRC Request (Matrix Item Number 142, TVA Commitments Nos. 10 and 17) in TVA letter to NRC dated October 26, 2010 (Reference 5).
- 19. TVA will update the Procurement Requisition Resolution Matrix and submit it to show how the Common Q PAMS design meets the contract requirements.
TVA Response:
The Procurement Requisition Resolution Matrix has been updated and is included in WNA-LI-00058-WBT-P, Revision 2, Post-Accident Monitoring System (PAMS)
Licensing Technical Report submitted in TVA Letter to NRC dated December 3, 2010, (Reference 1), as Section 11, TVA Contract Compliance Matrix.
- 20. Westinghouse to add the Software Design Descriptions to the RTM TVA Response:
The Software Design Description documents were added to the RTM in WNA-VR-00279-WBT, Rev 2.
Source: E-mail from Westinghouse (Matthew A.
Shakun) to Bechtel (Mark S. Clark), RE: December 22 letter review, dated December 17, 2010 (Reference 13)
- 21. Westinghouse to clarify how requirements or documents are incorporated by reference into the Common Q PAMS requirements.
TVA Response:
When a Common Q PAMS requirements document references a section of another document, all requirements in that section are applicable.
Source: E-mail from Westinghouse (Matthew A.
Shakun) to Bechtel (Mark S. Clark), RE: December 22 letter review, dated December 17, 2010 (Reference 13)
- 22. Westinghouse to review the use of shall outside of
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Acceptable Y/N Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments numbered paragraphs in requirements documents to ensure that all requirements are captured and clearly identified.
TVA Response:
See response in letter dated December 22, 2010, item 2 (NRC Matrix Item 050).
- 23. Westinghouse to resolve the following questions concerning Software Design Descriptions (SDDs)
- a.
Is the SDD a standalone document or will it incorporate the generic SDD by reference?
- b.
What are the SDDs?
- c.
PAMS is a delta document so how do we capture all the generic requirements for traceability.
TVA Response:
- a.
There are three SDDs prepared specifically for the Watts Bar 2 PAMS project. These are listed below in Item b. These documents and superior requirements documents refer to other generic SDDs also listed in Item b.
- b.
The SDDs developed for this project are:
- i.
WNA-SD-00248-WBT, Revision 1, Watts Bar 2 NSSS Completion Program I&C Projects Software Design Description for the Post Accident Monitoring System Flat Panel Display ii.
WNA-SD-00250-WBT, Revision 1, Watts Bar 2 NSSS Completion Program I&C Projects Software Design Description for the Post Accident Monitoring System AC160 Software iii.
WNA-SD-00277-WBT, Revision 2, Watts Bar 2 NSSS Completion Program I&C Projects Software Design Description for the Post Accident Monitoring System Flat Panel Display System Screen Design Details iv.
Other generic SDDs referenced by the PAMS project are:
(a) 00000-ICE-20157, Revision 18, Software Design Description for the Common Q Generic Flat-Panel Software (b) 00000-ICE-30152, Revision 5, Software Design Description Post Accident Monitoring System AC160
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Acceptable Y/N Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments (c) 00000-ICE-30140, Revision 4, Software Design Description for the Common Q Core Protection Calculator System Database and Utility Functions
- c.
Refer to WNA-VR-00279-WBT, Revision 3.
Source: E-mail from Westinghouse (Matthew A.
Shakun) to Bechtel (Mark S. Clark), RE: December 22 letter review, dated December 17, 2010 (Reference 13)
- 24. For Reusable Software Elements, Westinghouse to describe as qualified libraries by following the SPM and qualified using the Software Elements Test procedure under Appendix B program. Provide a summary of RSEDs generic WCAP. Westinghouse to determine if the WCAP was docketed under the AP1000. RSED concept is not in the SPM. WCAP-15927 AP-1000 does not discuss RCEDs. WCAP process was acceptable. RSEDs are listed in the SDD References.
TVA Response:
Section 3.2.4.1 of WCAP-15927 describes the RSED design process for custom PC elements and type circuits. The Glossary of Terms in the SPM defines custom PC elements and type circuits as modules.
Therefore, the relationship between WCAP-15927 describing the RSED process as circuits, is defined in the SPM requirements for software module development.
WCAP-15927 is on the AP1000 docket.
Source: E-mail from Westinghouse (Matthew A.
Shakun) to Bechtel (Mark S. Clark), RE: December 22 letter review, dated December 17, 2010 (Reference 13) 143 EICB (Carte)
The WBN2 PAMS Software Requirements Specification (WBN2 PAMS SRS - ML101050202) contains a table (see page iii) titled, Document Traceability & Compliance, which states that the WBN2 PAMS SRS was created to support the three documents identified (one of which is the WBN2 PAMS SysRS). Section 1.1, Overview, of the WBN2 PAMS SRS states: This document describes requirements for the major software components (a) Please list and describe each of the major software components. Please include a description of any NRC review for each of these components.
(b) Please list and describe each of the other software components. Please include a description of any NRC review for each of these components.
(c) What other documents contain the requirements for the other software components?
The WBN2 PAMS System Design Specification (WBN2 PAMS Responder: WEC Addressed in the 9/15 public meeting and 9/20 - 9/21 audit.
A detailed explanation will be provided.
TVA Response:
(a) and (b) The requested information is provided in the following documents:
- i.
WNA-LI-00058-WBT-P, Revision 2, Post-Accident Monitoring System (PAMS) Licensing Technical Report, Table 6-1, Document Requirements which lists the software documentation requirements for the Common Q PAMS and Section 11 TVA Contract Compliance Matrix submitted in TVA Letter to NRC, dated December 3, 2010 (Reference 1).
ii.
WNA-DS-01617-WBT-P, Revision 3, Post Accident Monitoring System-System Requirements Specification, dated December
- 17.
N Open Response included in letter dated 12/22/10 Open-NRC Review Due 12/22/10 To be addressed by Revision of the RTM, SRS, SysRS, and SysDS.
ML101650255, Item No. 7 WBN2 PAMS System Requirements Specification TVA docketed WNA-DS-01617-WBT Rev. 1, RRAS Watts Bar 2 NSSS Completion Program I&C Projects Post Accident Monitoring System-System Requirements Specification, dated December 2009.
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Acceptable Y/N Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments SDS) contains a table (see page iii) titled, Document Traceability
& Compliance, which states that the WBN2 PAMS SysRS was created to support the WBN2 PAMS SysRS. Section 1.1, Purpose, of the WBN2 PAMS SDS states: The purpose of this document is to define the hardware design requirements (c) Do the WBN2 PAMS SRS and SDS, together, implement all of the requirements in the WBN2 PAMS SysRS?
(e) Please briefly describe all of the documents that implement the WBN2 PAMS SysRS.
2010 (Attachment 1) iii.
WNA-SD-00239-WBT-P, Revision 3, Software Requirements Specification for the Post Accident Monitoring System, dated December 2010 (Attachment 7) iv.
WNA-VR-00279-WBT, Revision 3, Watts Bar 2 NSSS Completion Program I&C Projects Requirements Traceability Matrix for the Post Accident Monitoring System (available for NRC audit at the Westinghouse Rockville office)
To the best of TVAs knowledge, no prior NRC review of the software components has been performed.
(c) WNA-VR-00280-WBT, Revision 2, Watts Bar 2 NSSS Completion Program I&C Projects Requirements Traceability Matrix for the Reactor Vessel Level Indication System (RVLIS) Custom PC Elements (available for NRC audit at the Westinghouse Rockville office)
(d) No. Please see Item (e) below.
(e) The documents that describe the requirements that implement the WBN Unit 2 SysRS are:
- i.
WNA-VR-00279-WBT, Revision 3, Watts Bar 2 NSSS Completion Program I&C Projects Requirements Traceability Matrix for the Post Accident Monitoring System (available for NRC audit at the Westinghouse Rockville office) ii.
WNA-VR-00280-WBT, Revision 2, Watts Bar 2 NSSS Completion Program I&C Projects Requirements Traceability Matrix for the Reactor Vessel Level Indication System (RVLIS) Custom PC Elements (available for NRC audit at the Westinghouse Rockville office)
Source: E-mail from Westinghouse (Matthew A. Shakun) to Bechtel (Mark S. Clark), RE: December 22 letter review, dated December 17, 2010 (Reference 13) 144 EICB (Carte)
The WBN2 PAMS Software Requirements Specification (WBN2 PAMS SRS) contains a table (see page iii) titled, Document Traceability & Compliance, which states that the WBN2 PAMS SRS was created to support the three documents identified (two of these documents have been provided on the docket).
(a) Please describe the third document (i.e., NABU-DP-00014-GEN Revision 2, Design Process for Common Q Safety Systems).
(b) Please describe the flow of information between these three documents.
(c) Does the PAMS SRS implement the requirements in these three documents?
(d) Please describe if and how these three documents are used in the development of the PAMS Software Design Description.
(e) Do the WBN2 V&V activities include verification that the requirements of these three documents have been incorporated Responder: WEC (a) The purpose of NABU-DP-00014-GEN document is to define the process for system level design, software design and implementation, and hardware design and implementation for Common Q safety system development.
This document supplements the Common Q SPM, WCAP-16096-NP-A. The scope of NABU-DP-00014-GEN includes the design and implementation processes for the application development. For a fuller description of the design process described in NABU-DP-00014-GEN please refer to the Design Process for AP1000 Common Q Safety Systems, WCAP-15927 on the AP1000 docket. Since this is a Westinghouse process document that is not specifically referenced in the SRS, it will be removed in the next revision of the document.
(b) - Closed to items 142 and 145 (c) - Closed 142
- 18.
N Open Revised response included in letter dated 12/22/10 Response provided in letter dated 10/5/10 NRC Review and WEC to complete response.
b-d to be addressed at public meeting and audit. Will require information to be docketed.
Open-NRC Review Due 12/3/10 Responses to items a and e provided.
NNC 11/18/10:
(1) Items b-d closed to other Open Item nos.
(2) The point of these questions was to understand how the origin of the requirements in the requirements specifications were documented. TVA stated that the origin of the requirements would be demonstrated in ML101650255, Item No. 8 TVA Letter dated 10/5/10 WBN2 PAMS Software Requirements Specification By letter dated April 8, 2010 (ML10101050203), TVA docketed WNA-SD-00239-WBT, Revision 1, "RRAS Watts Bar 2 NSSS Completion Program I&C Projects, Software Requirements Specification for the Post Accident Monitoring System, dated February 2010 (ML101050202).
Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad49E5C.docx Open Items to be Resolved for SER Approval No.
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Response
Acceptable Y/N Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments into the WBN2 PAMS SRS.
(d) - Closed to Item 142 (e) WBN2 PAMS Software Requirements Specification (WNA-SD-00239-WBT, Rev. 1) refers to Document Traceability & Compliance table on page iii. This table has three entries; Design Process for Common Q Safety Systems (NABU-DP-00014-GEN, Rev. 2), RRAS Watts Bar 2 NSSS Completion Program I&C Projects Post Accident Monitoring System - System Requirements Specification (WNA-DS-01617-WBT, Rev. 1), and RRAS Watts Bar 2 NSSS Completion Program I&C Projects Post Accident Monitoring System - System Design Specification (WNA-DS-01667-WBT, Rev. 1).
IV&V performed a Requirements Traceability Assessment during which it reviewed Software Requirements Specification (WBN2 PAMS SRS, WNA-SD-00239-WBT, Rev. 1) against System Requirements Specification (WNA-DS-01617-WBT, Rev. 1) and System Design Specification (WNA-DS-01667-WBT, Rev. 1). Requirements within Software Requirements Specification that are referring to NABU-DP-00014-GEN, Rev 2, Design Process for Common Q Safety Systems, have also been reviewed for traceability and compliance. During IV&V's RTA effort the anomaly reports V&V-769 and V&V-770 have been initiated and reported in the IV&V Phase Summary Report for the System Definition Phase, WNA-VR-00283-WBT, Rev. 0.
IV&V has verified that the requirements in SRS are derived from the specified documents listed in the Document Traceability and Compliance Table of WBN2 PAMS SRS.
TVA Response to Follow-up NRC Request:
(1) Item (a) in the original list, NABU-DP-00014-GEN Revision 2, Design Process for Common Q Safety Systems, is available for NRC audit at the Westinghouse Rockville office.
(2) WNA-LI-00058-WT-P, Revision 2, Post-Accident Monitoring System (PAMS) Licensing Technical Report submitted in TVA Letter to NRC dated December 3, 2010, (Reference 1) contains the following change to address the NRC request:
Section 11, TVA Contract Compliance Matrix showing the origin of the requirements was added.
Rev. 2 of the CQ PAMS LTR.
145 EICB (Carte)
The WBN2 PAMS System Design Specification (WBN2 PAMS SDS) contains a table (see page iii) titled, Document Traceability
& Compliance, which states that the WBN2 PAMS SDS was created to support the WBN2 PAMS SysRS.
(a) Does the WBN2 PAMS SDS implement all of the hardware requirements in the WBN2 PAMS SysRS?
(b) Please briefly describe all of the documents that implement the hardware requirements of the WBN2 PAMS SysRS.
Responder: WEC (1) The review and update of the RTM is complete. The revised RTM can be made available for NRC audit at the Westinghouse office in Rockville.
(2) Please see letter Item 10 (NRC Matrix Item 142, sub item 13).
(3) Please see letter Item 10 (NRC Matrix Item 142, sub item 12).
- 19.
N Open Response included in letter dated 12/22/10 During the September 20-21, 2010 audit at Westinghouse, it was acknowledged that TVA/Westinghouse had previously (in September 15, 2010 public meeting) stated:
Open-NRC Review Due 12/22/10 To be addressed by Revision of the RTM, SRS, SysRS, and SysDS.
ML101650255, Item No. 9 WBN2 PAMS System Design Specification TVA docketed WNA-DS-01667-WBT Rev. 1, RRAS Watts Bar 2 NSSS Completion Program I&C Projects Post Accident Monitoring System-System Design Specification, dated December 2009.
Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad49E5C.docx Open Items to be Resolved for SER Approval No.
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Response
Acceptable Y/N Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments This item is used to track all traceability issues with the System Design Specification (SDS).
At the September 15 public meeting in Rockville, the following actions were agreed to. These items partially address the traceability concerns with the System Design Specification.
This item will be updated with the results of the September 20 and 21 Commercial Grade Dedication and SDS RTM audit.
- 1.
Westinghouse will perform completed a review of the Requirements Traceability Matrix(RT), using the issues identified at the 9/15 public meeting as a guide (documented below) and update the RTM as required.
- 2.
Some hardware requirements are contained in the SRS instead of the System Design Specification (SDS). These will be removed from the SRS and incorporated into the next revision of the SDS.
- 3.
25 issues identified by V&V where some requirements have not been included in the SDS (14) and SRS (11) at the revisions reviewed by V&V. Have these been addressed?
Yes. The next revisions of the SDS and SRS address these issues.
- 4.
TVA will update the Procurement Requisition Resolution Matrix and submit it to show how the Common Q PAMS design meets the contract requirements.
- 5.
The next issue of the IV&V report will include the Requirements phase review of the RTM and a partial review for the Design phase.
- 6.
Westinghouse to provide the generic AC160 and flat panel specifications.
- 7.
Westinghouse and TVA to develop a schedule of licensing document submittals that can be met by the project team.
- 8.
The flow of information is from the SysRS to the SDS (hardware) and SRS (software). Describe how the documents are used. Describe in 1.1 of the SysRS. Need a good write up of how the process works.
(4) Section 11 TVA Contract Compliance Matrix was added to WNA-LI-00058-WBT-P, Revision 2, Post-Accident Monitoring System (PAMS) Licensing Technical Report submitted in TVA Letter to NRC dated December 3, 2010, (Reference 1).
(5) WNA-VR-00283-WBT, Revision 1, IV&V Summary Report for the Post Accident Monitoring System, submitted in TVA to NRC letter dated December 3, 2010 (Reference 1) includes the Requirements and Design phase reviews.
(6) Per Westinghouse letter WBT-D-2268 NRC Access to Common Q Documents at the Westinghouse Rockville Office dated August 16, 2010 (Reference 9) System Requirements Specification for the Common Q Generic Flat Panel Display, 00000-ICE-30155, Revision 9 is available for audit at the Westinghouse Rockville office.
The generic AC160 specifications are contained in the documents listed below. The documents are available for NRC audit at the Westinghouse Rockville office in accordance with the letter number referenced. List is contained in letter.
(7) A schedule was developed and is reviewed weekly by Westinghouse and TVA project management.
(8) The revised document submittal schedule was included as item 3 NRC Request (Matrix Item Number 142, TVA Commitments Nos. 10 and 17) in TVA letter to NRC dated October 26, 2010 (Reference Error!
Reference source not found.).
(9) The flow of documentation information was provided to the NRC inspector during the Common Q PAMS audit.
Source: E-mail from Westinghouse (Andrew P. Drake) to Bechtel (Mark S. Clark), RE: RAI on SysRS, dated December 8, 2010 (Reference 18)
TVA would provide the RSED RTM. (see ML102920031 Item No 6)
TVA would revise and resubmit the PAMS RTM to address all types of issues identified in the public meeting. (see ML102920031 Item No 7)
TVA would revise and resubmit the Software Verification and Validation phase summary report for the requirements phase to document the completion of the requirements phase review. (see ML102920031 Item No 8) 154 7.2 7.2 EICB (Garg)
FSAR section 7.2.1.1.10, setpoints: NRC staff has issued RIS 2006-17 to provide guidance to the industry regarding the instrument setpoint methodology which complies with 10 CFR 50.36 requirements. Provide the information on how the WBN2 setpoint methodology meets the guidance of RIS 2006-17 and include this discussion in this section. Also, by letter dated May 13, 2010, TVA provided Rev. 7 of EEB-TI-28 to the staff. The staff noted that section 4.3.3.6 of EEB-TI-28 discusses the correction for setpoints with a single side of interest. It should be noted that the staff has not approved this aspect of setpoint methodology for Unit 1. The staff finds this reduction in uncertainties is not justified unless it can be demonstrated that the 95/95 criteria is met.
Therefore, either remove this reduction factor for single sided uncertainties or justify how you meet the 95/95 criteria given in RG 1.105.
Responder: Craig/Webb (Q1) Refer to the response to letter item 13, RAI Matrix Item
- 51.
(Q2) EEB-TI-28's single sided methodology conforms with WBN's design basis commitment to ensure that 95% of the analyzed population is covered by the calculated tolerance limits as defined in NRC Reg Guide 1.105, Revision 2, 1986 that was in affect during WBN Unit 1 licensing. The single sided methodology is not used for any TSTF-493 setpoints that use TI-28 methodology.
TVA Revised Response:
- 20.
Y Open Response is not acceptable. A revised response will be submitted in the letter dated 10/29/10.
Open-NRC Review Due 12/17/10 Pending FSAR Amendment 102 submittal.
FSAR AMD 100. Since all the setpoint and allowable value for Unit 2 is calculated and added to TS, TVA needs to address the latest criteria and that ML101720589, Item No. 6 and EICB RAI ML102861885 Item No. 8 TVA Letter dated 10/5/10 TVA Letter dated 10/29/10 Item No. 13 EICB RAI ML102861885 sent to DORL
Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad49E5C.docx Open Items to be Resolved for SER Approval No.
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Acceptable Y/N Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments In order to respond to other NRC comments on the setpoint methodology discussion in FSAR Amendment 100, TVA reviewed the previous response to this RAI. This resulted in a complete rewrite of the responses to this question as shown below. As a result, the response does not specifically address the NRC Follow-up Request. However, the overall responses to all of the NRC RAIs on setpoint methodology addresses this item.
(Q1)
WBN 2 implementation of TSTF-493, Rev. 4, Option A includes addition of a discussion of the WBN setpoint methodology in FSAR section 7.1.2.1.9.
(Q2)
Electrical Engineering Branch (EEB) Technical Instruction (TI) 28, Setpoint Calculations, single-sided methodology conforms to WBN's design basis commitment to ensure that 95% of the analyzed population is covered by the calculated tolerance limits as defined in NRC Reg Guide 1.105, Revision 2, 1986, which was in effect during WBN Unit 1 licensing. Single-sided multipliers are not used for any TSTF-493 setpoints.
There are some areas where a 95% confidence level could not be achieved. Some examples would be harsh environment instrumentation where only 2 or 3 devices were tested in the 10CFR50.49 program. In these situations, the Confidence is referred to as high..
include 95/95 criteria.
Why the last sentence has been modified by adding TI-28. It was NRCs understanding that all setpoints have to meet TI-28 156 7.2 7.2 EICB (Garg)
FSAR section 7.2.2.1.1 states that dashed lines in Figure 15.1-1designed to prevent exceeding 121% of power.The value of 121% is changed from 118%. The justification for this change states that this was done to bring the text of this section in agreement with section 4.3.2.2.5, 4.4.2.2.6 and table 4.1-1.
However, Table 4.1-1 and section 4.3.2.2.5 still show this value as 118%. Justify the change.
Responder: WEC Per Westinghouse letter WBT-D-2340, TENNESSEE VALLEY AUTHORITY WATTS BAR NUCLEAR PLANT UNIT 2 FSAR Markups Units I and 2 118% vs. 121 % and Correction to RAI Response SNPB 4.3.2-7, (Reference 17) the 118% value should be 121%. Depending on the use in the FSAR either 118% or 121% are the correct values. As a result of the question, Westinghouse reviewed all locations where either 118% or 121% are used and the context of use and provided a FSAR markup to reflect the correct value at the specific location. These changes will be incorporated in a future FSAR amendment.
TVA Response to Follow-up NRC Request:
The following response was provided by Westinghouse letter WBT-D-2690 Follow Up -NRC Request on 118% and 121 %
FSAR Power Levels, dated December 6, 2010 (Reference 2). This corrects the information provided in TVA letter to NRC letter dated October 5, 2010 (Reference 21)
A review of the markups provided by Westinghouse (Reference 4) and the current Unit 2 FSAR shows that in the context of the Power Range High Neutron Flux, High Setting, the value of 118% is correct. In the context of the peak core power during certain transients to confirm the fuel melt criterion, the value of 121% is
- 21.
N Open Revised response included in letter dated 12/22/10.
Response is included in letter dated 10/5/10 Open-NRC Review Due 12/22/10 Amendment 101 Submitted 10/29/10.
TVA needs to justify why some places 121%
is used and other places 118% is used.
What does 121% or 118% means.
ML101720589, Item No. 8 TVA Letter dated 10/5/10 Response on hold pending Westinghouse review.
Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad49E5C.docx Open Items to be Resolved for SER Approval No.
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Response
Acceptable Y/N Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments correct. A detailed discussion of peak core power during transients is contained in FSAR Chapter 4.3.2.2.5, Limiting Power Distributions.
183 EICB (Carte) 7/15/2010 An emphasis is placed on traceability in System Requirements Specifications in the SRP, in the unmodified IEEE std 830-1993, and even more so given the modifications to the standard listed in Regulatory Guide 1.172, which breaks with typical NRC use of the word should to say Each identifiable requirement in an SRS must be traceable backwards to the system requirements and the design bases or regulatory requirements that is satisfies On page 1-2 of the Post Accident Monitoring Systems Software Requirements Specification in the background section, is the sentence Those sections of the above references that require modification from the generic PAMS are defined in the document referring purely to the changes from WNA-DS-01617-WBT Post Accident Monitoring System-System Requirements Specification or is it saying that there are additional changes beyond those and that the SRS defines them?
If there are additional changes, what is their origin?
Responder: WEC The generic Software Requirements Specification applies except as modified by the WBN Unit 2 System Requirements Specification.
TVA Response to Follow-up NRC Request:
Please see the response to RAI item 12 in letter dated 12/222/10, NRC Matrix Item 144.
- 22.
Y Open Revised response included in letter dated 12/22/10.
Response provided in letter dated 10/21/10 Open-NRC Review Due 12/3/10 NNC 11/18/10: The point behind this open item was that TVA must demonstrate that the origin of each requirement in the WEC requirements specification is known and documented. TVA stated that this information would be in CQ PAMS LTR Rev. 2.
EICB RAI ML102980066 Item No. 9 TVA Letter dated 10/21/10 Item No. 4 185 EICB (Carte) 7/15/2010 An emphasis is placed on the traceability of requirements in Software Requirements Specifications in the SRP, in the unmodified IEEE std 830-1993, and even more so given the modifications to the standard listed in Regulatory Guide 1.172, which breaks with typical NRC use of the word should to say Each identifiable requirement in an SRS must be traceable backwards to the system requirements and the design bases or regulatory requirements that is satisfies Also the NRC considers that the SRS is the complete set of requirements used for the design of the software, whether it is contained within one document or many. In order to evaluate an SRS against the guidance in the SRP the staff needs access to all the requirements.
References 12, 27, 29, and 31-44 in the Post Accident Monitoring Systems Software Requirements Specification are various types of Reusable Software Element.
These references are used in the body of the SRS, for example:
R5.3.14-2 [The Addressable Constants CRC error signal shall be TRUE when any CAL CRC's respective ERROR terminal = TRUE (WNA-DS-00315-GEN, "Reusable Software Element Document CRC for Calibration Data" [Reference 12]).]
They are also included via tables such as found in requirement R7.1.2-1
[The Watts Bar 2 PAMS shall use the application-specific type circuits and custom PC elements listed in Table 7.1-1.]
Do the referenced reusable software element documents include requirements not explicitly stated in the SRS? If so what is their Responder: WEC Steve Clark to look at how to combine traceability items.
Was addressed to during the 9/15 meeting and 9/20 - 9/21 audit.
TVA Response to Follow-up NRC Request:
(1) Please see the response to Item 12 in this letter (NRC Matrix Item 144).
(2) There is no RTM for development of the individual reusable software elements. As listed in item 15 of Table 6-1 Document Requirements of WNA-LI-00058-WT-P, Revision 2, Post-Accident Monitoring System (PAMS) Licensing Technical Report submitted in TVA Letter to NRC, dated December 3, 2010, a RTM for implementation of the RSEDs (WNA-VR-00280-WBT) for the WBN Unit 2 Common Q PAMS has been developed. This document is available for NRC audit at the Westinghouse Rockville office.
- 23.
N Open Response included in letter dated 12/22/10.
Open-NRC Review Due (1) 12/3/10 (2) 12/22/10 NNC 11/18/10: (1)The point behind this open item was that TVA must demonstrate that the origin of each requirement in the WEC requirements specification is known and documented. TVA stated that this information would be in CQ PAMS LTR Rev. 2.
(2) TVA also said it would provide a RTM for the RSED EICB RAI ML102980066 Item No. 17
Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad49E5C.docx Open Items to be Resolved for SER Approval No.
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Acceptable Y/N Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments origin?
187 EICB (Carte)
By letter dated June 18, 2010, TVA docketed responses to NRC requests for information.
- 1) Enclosure 1, Item No. 33 of the TVA letter dated June 18, 2010, did not identify any connection from the PAMS Operator Modules (OMs) to the plant computer and printers; however, Figure 2.1-1 of the PAMS System Requirements Specification (WNA-DS-01617-WBT Rev. 1 - ML101680578) shows a TCP connection from the OMs to the plant computer and printer. Please explain.
- 2) Please clarify whether any digital safety-related systems or components have a digital communications path to non-safety-related systems or with safety related systems in another division.
If so, NRC staff will need these paths identified on the docket.
Responder: Merten
- 1) Please refer to the revised response to letter dated 10/5/10 Item 18 (RAI Matrix item 115).
- 2) This is a duplicate of closed RAI Matrix Item 45.
TVA Response to Follow-up NRC Request:
A review of the following documents determined that the connection between the OM and the plant computer has been changed to a connection to a printer:
- 1.
WNA-DS-01617-WBT-P, Revision 3, Post Accident Monitoring System - System Requirements Specification, dated November 2010 (Attachment 1)
- 2.
WNA-DS-01667-WBT-P, Revision 3, Post Accident Monitoring System - System Design Specification, dated November 2010 (Attachment 4)
- 3.
WNA-LI-00058-WBT-P, Revision 2, Post-Accident Monitoring System (PAMS) Licensing Technical Report, dated November 2010, submitted in TVA to NRC letter December 3, 2010 (Reference 1)
Review of the newly released Common Q PAMS documents listed below confirmed they correctly show a connection from the OM to a printer and not the plant computer. None of the other newly released documents contain a figure of the Common Q PAMS system showing the connection from the OM. The exception is WCAP-17351 which was created to allow a non-proprietary version of a generic Common Q document to be submitted on the docket and was not intended to reflect the WBN Unit 2 configuration.
Note: The OM printer connection is only used for maintenance. A printer is not normally connected to the OM. To use the OM printer connection, the FE keyswitch must installed and be in the ENABLE position.
(1)
WNA-TP-02988-WBT, Revision 0, Post Accident Monitoring System Channel Integration Test/Factory Acceptance Test, dated November 2010, submitted in TVA to NRC letter December 3, 2010 (Reference
- 1)
(2) WNA-AR-00180-WBT-P, Revision 0, Failure Modes and Effects Analysis (FMEA) for the Post Accident Monitoring System, dated October 2010, submitted in TVA to NRC letter November 5, 2010 (Reference 12)
- 24.
N Open Revised response included in letter dated 12/22/10.
Partial Response provided in letter dated 10/5/10 NNC 8/25/10: Why did TVA not catch this on the review of the PAMS SysRS or SRS? Does TVA check that the CQ PAMS system meets the requirements in its purchase specifications?
Open-NRC Review Due 12/22/10 Revise Response ML101970033, Item No. 1 & 2 TVA Letter dated 10/5/10 Are these connections already docketed?
202 7.5.2 EICB (Carte) 7/22/2010 The letter (ML0003740165) which transmitted the Safety Evaluation for the Common Q topical report to Westinghouse Responder: WEC
- 25.
N Open Response included in letter dated 12/22/10 Open-NRC Review Due 12/3/10 EICB RAI ML102980066 Item No. 4 TVA Letter dated 10/5/10
Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad49E5C.docx Open Items to be Resolved for SER Approval No.
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Response
Acceptable Y/N Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments stated: "Should our criteria or regulations change so that our conclusions as to the acceptability of the report are invalidated, CE Nuclear Power and/or the applicant referencing the topical report will be expected to revise and resubmit their respective documentation, or submit justification for continued applicability of the topical report without revision of the respective documentation." Question No 81 identified many criteria changes; please revise the respective documentation or submit justification for continued applicability of the topical report.
Revision 1 of the Licensing Technical Report will provide more detailed information on the changes to the platform.
Rev. 2 of the Licensing Technical Report will include the applicability of guidance.
TVA Response to Follow-up NRC Request:
WNA-LI-00058-WBT-P, Revision 2, Post-Accident Monitoring System (PAMS) Licensing Technical Report (LTR) submitted in TVA Letter to NRC dated December 3, 2010, (Reference 1) contains the following change to address the NRC request:
Section 9, Compliance Evaluation of the Watts Bar 2 PAMS Software Requirements Specification to IEEE Standard 830-1998 and Regulatory Guide 1.172 to show the origin of the requirements has been added.
The descriptions and commitments in the Topical Report (TR) still apply. The LTR provides compliance evidence to the new ISG-04 criteria. The statement in the SE means that the TR can be evaluated against later NRC criteria when it appears.
Source: E-mail from Westinghouse (Matthew A. Shakun) to Bechtel (Mark S. Clark), RE: December 22 letter review, dated December 17, 2010 (Reference 13)
Partial Response provided in letter dated 10/5/10 Licensing Technical Report R2 212 7.5.2 EICB (Carte) 7/27/2010 By letter dated June 18, 2010 (ML101940236) TVA stated (Enclosure 1, Attachment 3, Item No. 3) that the PAMS system design specification and software requirements specification contain information to address the "Design Report on Computer Integrity, Test and Calibration..." The staff has reviewed these documents, and it is not clear how this is the case.
(1) Please describe how the information provided demonstrates compliance with IEEE 603-1991 Clauses 5.5, 5.7, 5.10, & 6.5.
(2) Please describe how the information provided demonstrates conformance with IEEE 7-4.3.2-2003 Clauses 5.5 & 57.
Responder: WEC Application specific requirements for testing. This cannot be addressed in a topical report. Evaluation of how the hardware meets the regulatory requirements.
WEC to provide the information and determine where the information will be located.
- 1.
IEEE-603 1991 5.5 System Integrity. The safety systems shall be designed to accomplish their safety functions under the full range of applicable conditions enumerated in the design basis.
TVA Response: The applicable conditions and Common Q PAMS system compliance are contained in WNA-LI-00058-WBT-P, Revision 2, Post-Accident Monitoring System (PAMS) Licensing Technical Report submitted in TVA Letter to NRC dated December 3, 2010, (Reference 1) Section 11, Contract Compliance Matrix items:
87 and 88 Seismic 89, 90, 91, 92 and 185 EMI/RFI 300, 301 and 302 Environmental 5.7 Capability for Test and Calibration. Capability for testing and calibration of safety system equipment
- 26.
N Open Response included in letter dated 12/22/10.
Open-NRC Review Due 12/22/10 To be addressed by WBN2 specific test plan EICB RAI ML102980066 Item No. 10
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Acceptable Y/N Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments shall be provided while retaining the capability of the safety systems to accomplish their safety functions.
The capability for testing and calibration of safety system equipment shall be provided during power operation and shall duplicate, as closely as practicable, performance of the safety function. Testing of Class 1E systems shall be in accordance with the requirements of IEEE Std 338-1987 [3]. Exceptions to testing and calibration during power operation are allowed where this capability cannot be provided without adversely affecting the safety or operability of the generating station. In this case:
(1) appropriate justification shall be provided (for example, demonstration that no practical design exists),
(2) acceptable reliability of equipment operation shall be otherwise demonstrated, and (3) the capability shall be provided while the generating station is shut down.
TVA Response: The requirements for test and calibration and Common Q PAMS system compliance, are contained in WNA-LI-00058-WBT-P, Revision 2, Post-Accident Monitoring System (PAMS) Licensing Technical Report Section 11, TVA Contract Compliance Matrix items:
202 self test 350 Maintenance Bypass 351 Loop Tuning Parameters, 400 and 401 3.7.2 Testing, Calibration, and Verification 402, 403 and 404, 3.7.3 Channel Bypass or Removal from Operation 5.10 Repair. The safety systems shall be designed to facilitate timely recognition, location, replacement, repair, and adjustment of malfunctioning equipment.
TVA Response: The requirements for repair and Common Q PAMS system compliance are contained in WNA-LI-00058-WBT-P, Revision 2, Post-Accident Monitoring System (PAMS) Licensing Technical Report Section 11, TVA Contract Compliance Matrix items:
179 Mean time to repair 202 self test 398 3.7 Maintenance 399 3.7.1 Troubleshooting 6.5 Capability for Testing and Calibration 6.5.1 Means shall be provided for checking, with a high degree of confidence, the operational availability of each sense and command feature input sensor required for a safety function during reactor operation.
Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad49E5C.docx Open Items to be Resolved for SER Approval No.
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Acceptable Y/N Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments This may be accomplished in various ways; for example:
(1) by perturbing the monitored variable, (2) within the constraints of 6.6, by introducing and varying, as appropriate, a substitute input to the sensor of the same nature as the measured variable, or (3) by cross-checking between channels that bear a known relationship to each other and that have readouts available.
6.5.2 One of the following means shall be provided for assuring the operational availability of each sense and command feature required during the post-accident period:
(1) Checking the operational availability of sensors by use of the methods described in 6.5.1.
(2) Specifying equipment that is stable and retains its calibration during the post-accident time period.
TVA Response: The requirements for sense and command feature testing and Common Q PAMS system compliance are contained in WNA-LI-00058-WBT-P, Revision 2, Post-Accident Monitoring System (PAMS) Licensing Technical Report Section 11 TVA Contract Compliance Matrix items:
10, display of sensor diagnostic information 202 self test 205 self diagnostics and watchdog timer 264 through 271, system self checks 311 system status displays, 341 alarms, 344 on-line diagnostics
- 2.
IEEE 7-4.3.2-2003 5.5 System integrity In addition to the system integrity criteria provided by IEEE Std 603-1998, the following are necessary to achieve system integrity in digital equipment for use in safety systems:
Design for computer integrity Design for test and calibration Fault detection and self-diagnostics 5.5.1 Design for computer integrity The computer shall be designed to perform its safety function when subjected to conditions, external or internal, that have significant potential for defeating the safety function. For example, input and output processing failures, precision or round off problems,
Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad49E5C.docx Open Items to be Resolved for SER Approval No.
SE Sec.
FSAR Sec.
Response
Acceptable Y/N Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments improper recovery actions, electrical input voltage and frequency fluctuations, and maximum credible number of coincident signal changes.
If the system requirements identify a safety system preferred failure mode, failures of the computer shall not preclude the safety system from being placed in that mode. Performance of computer system restart operations shall not result in the safety system being inhibited from performing its function.
TVA Response: Common Q PAMS system reliability and failure modes are described in:
WNA-AR-00180-WBT, Revision 0, Failure Modes and Effects Analysis (FMEA) for the Post Accident Monitoring System WNA-AR-00189-WBT, Revision 0 Post Accident Monitoring System Reliability Analysis The requirements for mean time between failure and Common Q PAMS system compliance are contained in WNA-LI-00058-WBT-P, Revision 2, Post-Accident Monitoring System (PAMS) Licensing Technical Report, Section 11 TVA Contract Compliance Matrix item 178.
5.5.2 Design for test and calibration Test and calibration functions shall not adversely affect the ability of the computer to perform its safety function. Appropriate bypass of one redundant channel is not considered an adverse effect in this context. It shall be verified that the test and calibration functions do not affect computer functions that are not included in a calibration change (e.g., setpoint change).
V&V, configuration management, and QA shall be required for test and calibration functions on separate computers (e.g., test and calibration computer) that provide the sole verification of test and calibration data.
V&V, configuration management, and QA shall be required when the test and calibration function is inherent to the computer that is part of the safety system.
V&V, configuration management, and QA are not required when the test and calibration function is resident on a separate computer and does not provide the sole verification of test and calibration data for the computer that is part of the safety system.
TVA Response: The requirements for test and calibration and Common Q PAMS system compliance are contained in WNA-LI-00058-WBT-P, Revision 2, Post-Accident Monitoring System (PAMS) Licensing
Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad49E5C.docx Open Items to be Resolved for SER Approval No.
SE Sec.
FSAR Sec.
Response
Acceptable Y/N Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Technical Report Section 11 TVA Contract Compliance Matrix items:
202 self test 350 Maintenance Bypass 351 Loop Tuning Parameters, 400 and 401 3.7.2 Testing, Calibration, and Verification 402, 403 and 404, 3.7.3 Channel Bypass or Removal from Operation 5.5.3 Fault detection and self-diagnostics Computer systems can experience partial failures that can degrade the capabilities of the computer system, but may not be immediately detectable by the system.
Self-diagnostics are one means that can be used to assist in detecting these failures. Fault detection and self-diagnostics requirements are addressed in this sub-clause.
The reliability requirements of the safety system shall be used to establish the need for self-diagnostics. Self diagnostics are not required for systems in which failures can be detected by alternate means in a timely manner. If self-diagnostics are incorporated into the system requirements, these functions shall be subject to the same V&V processes as the safety system functions.
If reliability requirements warrant self-diagnostics, then computer programs shall incorporate functions to detect and report computer system faults and failures in a timely manner. Conversely, self-diagnostic functions shall not adversely affect the ability of the computer system to perform its safety function, or cause spurious actuations of the safety function. A typical set of self-diagnostic functions includes the following:
Memory functionality and integrity tests (e.g.,
PROM checksum and RAM tests)
Computer system instruction set (e.g., calculation tests)
Computer peripheral hardware tests (e.g.,
watchdog timers and keyboards)
Computer architecture support hardware (e.g.,
address lines and shared memory interfaces)
Communication link diagnostics (e.g., CRC checks)
Infrequent communication link failures that do not result in a system failure or a lack of system functionality do not require reporting.
When self-diagnostics are applied, the following self-diagnostic features shall be incorporated into the system design:
Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad49E5C.docx Open Items to be Resolved for SER Approval No.
SE Sec.
FSAR Sec.
Response
Acceptable Y/N Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments a) Self-diagnostics during computer system startup b) Periodic self-diagnostics while the computer system is operating c)
Self-diagnostic test failure reporting TVA Response: The requirements for fault detection and self diagnostics and Common Q PAMS system compliance are contained in WNA-LI-00058-WBT-P, Revision 2, Post-Accident Monitoring System (PAMS)
Licensing Technical Report Section 11 TVA Contract Compliance Matrix items:
107 error free download 202 self test 205 self diagnostics and watchdog timer 263 primary and backup communication 264 through 271, continuous on-line self checks 311 system status displays, 341 alarms, 344 on-line diagnostics 5.7 Capability for test and calibration No requirements beyond IEEE Std 603-1998 are necessary.
TVA Response: No response required.
Concurrence: E-mail from Westinghouse (Andrew P. Drake) to Bechtel (Mark S. Clark), RE: RAI 212 Response - Errors in the Contract Compliance Matrix, dated December 17, 2010 (Reference 14) 213 7.5.2 EICB (Carte) 7/27/2010 By letter dated June 18, 2010 (ML101940236) TVA stated (Enclosure 1, Attachment 3, Item No. 3) that the PAMS system design specification and software requirements specification contain information to address the "Theory of Operation Description." The staff has reviewed these documents, and it is not clear how this is the case. The docketed material does not appear to contain the design basis information that is required to evaluate compliance with the Clause of IEEE 603.
(1) Please provide the design basis (as described in IEEE 604 Clause 4) of the Common Q PAMS.
(2) Please provide a regulatory evaluation of how the PAMs complies with the applicable regulatory requirements for the theory of operation.
For example: Regarding IEEE 603 Clause 5.8.4 (1) What are the manually controlled protective actions? (2) How do the documents identified demonstrate compliance with this clause?
Responder: WEC Conformance with IEEE 603 is documented in the revised Common Q PAMS Licensing Technical Report and the Common Q PAMS System Design Specification.
contains the proprietary version of Westinghouse document Tennessee Valley Authority (TVA), Watts Bar Unit 2 (WBN2), Post-Accident Monitoring System (PAMS), Licensing Technical Report, Revision 1, WNA-LI-00058-WBT-P, Dated October 2010 contains the proprietary version of Westinghouse document Nuclear Automation Watts Bar 2 NSSS Completion Program I&C Projects Post Accident Monitoring System - System Design Specification, WNA-DS-01667-WBT, Rev. 2 dated September 2010.
- 27.
N Open Response is included in letter dated 10/25/10 NNC to review and revise this question after LTR R2 is received.
Open-NRC Review Due 12/31/10.
EICB RAI ML102980066 Item No. 18 244 EICB (Carte) 8/3/2010 Section 8.2.2 of the Common Q SPM (ML050350234) states that the Software Requirements Specification (SRS) shall be developed using IEEE 830 and RE 1.172. Clause 4.8, "Embedding project requirements in the SRS," of the IEEE 830 states that an SRS Responder: WEC The process related requirements have been removed from revision 2 of the Software Requirements Specification (SRS).
of letter dated 10/25/10 contains the
- 28.
N Open Revised response is included in letter dated 12/22/10 Response is provided in letter Open-NRC Review Due 12/22/10 EICB RAI ML102980066 Item No. 14 Response is provided in letter dated 10/25/10.
LIC-101 Rev. 3 Appendix B Section 4, "Safety Evaluation" states: "the information relied upon in the SE must be docketed correspondence."
LIC-101 Rev. 3 states: "The safety
Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad49E5C.docx Open Items to be Resolved for SER Approval No.
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Response
Acceptable Y/N Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments should address the software product, not the process of producing the software. In addition Section 4.3.2.1 of the SPM states "Any alternatives to the SPM processes or additional project specific information for the...SCMP...shall be specified in the PQP.
Contrary to these two statements in the SPM, the WBN2 PAMS SRS (ML101050202) contains many process related requirements, for example all seventeen requirements in Section 2.3.2, "Configuration Control," address process requirements for configuration control.
Please explain how the above meets the intent of the approved SPM.
proprietary version of Westinghouse document Nuclear Automation, Watts Bar 2 NSSS Completion Program, I&C Projects, Software Requirements Specification for the Post Accident Monitoring System, WNA-SD-00239-WBT, Revision 2, Dated September 2010.
TVA Response to Follow-up NRC Request:
As shown is the listed documents, process related requirements have been deleted from the SRS and SysRS in Revision 3:
contains proprietary version of WNA-DS-01617-WBT-P, Revision 3, Post Accident Monitoring System-System Requirements Specification, dated December 2010.
contains the proprietary version of WNA-SD-00239-WBT-P, Revision 3, Software Requirements Specification for the Post Accident Monitoring System, dated December 2010.
Source: E-mail from Westinghouse (Andrew P. Drake) to Bechtel (Mark S. Clark), RE: Common Q RAI concerns, dated December 8, 2010 (Reference 17) dated 10/25/10.
NNC 11/18/10: SysRS Rev. 2 also contains process requirements that are more appropriately incorporated into process documentation.
analysis that supports the change requested should include technical information in sufficient detail to enable the NRC staff to make an independent assessment regarding the acceptability of the proposal in terms of regulatory requirements and the protection of public health and safety."
245 EICB (Carte) 8/3/2010 Section 5.8 of the Common Q SPM (ML050350234) identifies the required test documentation for systems developed using the Common Q SPM. Please provide sufficient information for the NRC staff to independently assess whether the test plan for WBN2 PAMS, is as described in the SPM (e.g., Section 5.8.1).
Responder: WEC Relates to the commitment to provide the test plan and the SPM compliance matrix contains the Westinghouse document Post Accident Monitoring System Test Plan, WNA-PT-00138-WBT, Revision 0, dated November 2010. Attachment 10 contains the Westinghouse Application for Withholding for the Post Accident Monitoring System Test Plan, WNA-PT-00138-WBT, Revision 0, dated November 2010.
- 29.
N Open Response included in letter dated 12/3/10 Open-NRC Review Due 12/22/10 EICB RAI ML102980066 Item No. 119 LIC-101 Rev. 3 Appendix B Section 4, "Safety Evaluation" states: "the information relied upon in the SE must be docketed correspondence."
LIC-101 Rev. 3 states: "The safety analysis that supports the change requested should include technical information in sufficient detail to enable the NRC staff to make an independent assessment regarding the acceptability of the proposal in terms of regulatory requirements and the protection of public health and safety."
246 EICB (Carte) 8/3/2010 Section 4.3.2.1, "Initiation Phase" of the Common Q SPM (ML050350234) requires that a Project Quality Plan (PQP) be developed. Many other section of the SPM identify that this PQP should contain information required by ISG6. Please provide the PQP. If "PQP" is not the name of the documentation produced, please describe the documentation produced and provide the information that the SPM states should be in the PQP.
Responder: WEC As agreed ISG6 does not apply to the Common Q PAMS platform. The information required to address this question concerning the PQP and SPM has been added to compliance matrix in revision 1 of the Licensing Technical Report.
of letter dated 10/25/10 contains the proprietary version of Westinghouse document Tennessee Valley Authority (TVA), Watts Bar Unit 2 (WBN2), Post-Accident Monitoring System (PAMS), Licensing Technical Report, Revision 1, WNA-LI-00058-WBT-P, Dated October 2010
- 30.
N Open Response is provided in letter dated 10/25/10 NNC 11/18/10: PQP has not been provided and CQ PAMS LTR Rev. 1 does not contain comparable information.
Open-NRC Review Due 10/22/10 NNC 11/18/10: NRC to go to WEC Rockville Offices and look at PQP to decide if it must docketed.
EICB RAI ML102980066 Item No. 15 Response is provided in letter dated 10/25/10 LIC-101 Rev. 3 Appendix B Section 4, "Safety Evaluation" states: "the information relied upon in the SE must be docketed correspondence."
LIC-101 Rev. 3 states: "The safety analysis that supports the change requested should include technical information in sufficient detail to enable the NRC staff to make an independent assessment regarding the acceptability of the proposal in terms of regulatory requirements and the protection of public health and safety."
250 EICB (Carte) 8/8/2010 The SPM describes the software and documents that will be created and placed under configuration control. The SCMP (e.g.,
Responder: WEC Westinghouse develops Software Release Reports/Records and a Configuration Management Release Report. Describe
- 31.
N Open Revised response included in letter dated 12/22/10 Open-NRC Review Due 12/22/10 LIC-101 Rev. 3 Appendix B Section 4, "Safety Evaluation" states: "the information relied upon in the SE must be docketed correspondence."
Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad49E5C.docx Open Items to be Resolved for SER Approval No.
SE Sec.
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Response
Acceptable Y/N Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments SPM Section 6, Software Configuration Management Plan) describes the implementation tasks that are to be carried out. The acceptance criterion for software CM implementation is that the tasks in the SCMP have been carried out in their entirety.
Documentation should exist that shows that the configuration management tasks for that activity group have been successfully accomplished. Please provide information that shows that the CM tasks have been successfully accomplished for each life cycle activity group.
the documents and when they will be produced. Summarize guidance on how to produce these records, focus on project specific requirements in SPM etc.
TVA Response to Follow-up NRC Request:
The following documentation shows that the configuration management tasks for that activity group have been successfully accomplished.
- 1.
WNA-LI-00058-WT-P, Revision 2, Post-Accident Monitoring System (PAMS) Licensing Technical Report submitted in TVA Letter to NRC dated December 3, 2010, (Reference 1) contains the following changes to address the NRC requests:
- a.
Section 2.2.1 Hardware/Software Change Process has been added to describe the process of how changes are evaluated.
- b.
Section 2.2.2, Software has been expanded to include a table detailing evolutionary software changes that have occurred since the initial submittal and the change evaluation of the life cycle.
- 2.
WNA-PT-00138-WBT, Revision 0, Nuclear Automation Watts Bar 2 NSSS Completion Program I&C Projects, Post Accident Monitoring System Test Plan, (Proprietary), dated November 2010 submitted in TVA Letter to NRC, dated December 3, 2010 (Reference 1).
Response included in letter dated 10/25/10.
10/25/10 is a partial response. Still waiting on Software Test Plan and all other testing documentation.
LIC-101 Rev. 3 states: "The safety analysis that supports the change requested should include technical information in sufficient detail to enable the NRC staff to make an independent assessment regarding the acceptability of the proposal in terms of regulatory requirements and the protection of public health and safety."
251 EICB (Carte) 8/8/2010 The SPM describes the software testing and documents that will be created. The SPM also describes the testing tasks that are to be carried out. The acceptance criterion for software test implementation is that the tasks in the SPM have been carried out in their entirety. Please provide information that shows that testing been successfully accomplished.
Responder: WEC The software testing performed and documents created are addressed by the SPM Compliance matrix contained in Revision 1 of the Licensing Technical Report.
of the letter dated 10/25/10 contains the Proprietary version of Westinghouses document titled:
Tennessee Valley Authority (TVA), Watts Bar Unit 2 (WBN2), Post-Accident Monitoring System (PAMS),
Licensing Technical Report, Revision 1, WNA-LI-00058-WBT-P, Dated October 2010 TVA Response to Follow-up NRC Request:
Please see the response to RAI item 21 in letter dated 12/22/10, NRC Matrix Item 250.
- 32.
N Open Revised response included in letter dated 12/22/10 Partial response is provided in letter dated 10/25/10 Open-NRC Review Due 12/22/10.
10/25/10 is a partial response. Still waiting on Software Test Plan and all other testing documentation.
LIC-101 Rev. 3 Appendix B Section 4, "Safety Evaluation" states: "the information relied upon in the SE must be docketed correspondence."
LIC-101 Rev. 3 states: "The safety analysis that supports the change requested should include technical information in sufficient detail to enable the NRC staff to make an independent assessment regarding the acceptability of the proposal in terms of regulatory requirements and the protection of public health and safety."
252 EICB (Carte) 8/8/2010 The SPM contain requirements for software requirements traceability analysis and associated documentation (see Section 5.4.5.3, Requirements Traceability Analysis). Please provide information that demonstrates that requirements traceability analysis has been successfully accomplished.
Responder: WEC Explain response to AP1000 audit report.
RTM docketed NRC awaiting V&V evaluation of RTM.
The following responses are based on WBN Unit 2 Common Q PAMS traceability:
Software requirements traceability analysis is described in the following documents:
- 33.
N Open Response included in letter dated 12/22/10 Read ML091560352 Open-NRC Review Due 12/22/10 Check on this Hilmes LIC-101 Rev. 3 Appendix B Section 4, "Safety Evaluation" states: "the information relied upon in the SE must be docketed correspondence."
LIC-101 Rev. 3 states: "The safety analysis that supports the change requested should include technical information in sufficient detail to enable the NRC staff to make an independent
Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad49E5C.docx Open Items to be Resolved for SER Approval No.
SE Sec.
FSAR Sec.
Response
Acceptable Y/N Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments
- 1.
WNA-LI-00058-WBT-P, Revision 2, Post-Accident Monitoring System (PAMS) Licensing Technical Report submitted in TVA Letter to NRC dated December 3, 2010, (Reference 1) Section 11, TVA Contract Compliance Matrix
- 2.
WNA-VR-00279-WBT, Watts Bar 2 NSSS Completion Program I&C Projects Requirements Traceability Matrix for the Post Accident Monitoring System (available for NRC audit at the Westinghouse Rockville office)
- 3.
WNA-VR-00280-WBT, Watts Bar 2 NSSS Completion Program I&C Projects Requirements Traceability Matrix for the Reactor Vessel Level Indication System (RVLIS) Custom PC Elements (available for NRC audit at the Westinghouse Rockville office) This document addresses the RSEDs used in the WBN Unit 2 Common Q PAMS.
The V&V evaluation of the RTM is documented in section 2.2.2 of the following documents:
- 1.
The Independent Verification & Validation (IV&V) report covering the Concept and Definition phases (Nuclear Automation Watts Bar Unit 2 NSSS Completion Program I&C Projects, IV&V Summary Report for the Post Accident Monitoring System, (Proprietary), WNA-VR-00283-WBT, Revision 1, dated November 2010), submitted in TVA Letter to NRC dated December 3, 2010 (Reference 1).
- 2.
The Independent Verification &Validation (IV&V) report covering the Design and Implementation phases (Nuclear Automation Watts Bar Unit 2 NSSS Completion Program I&C Projects, IV&V Summary Report for the Post Accident Monitoring System, (Proprietary), WNA-VR-00283-WBT, Revision 2, dated November 2010), submitted in TVA Letter to NRC dated December 3, 2010 (Reference 1).
- 3.
The integration phase is covered in Attachment 10, the proprietary version of IV&V Summary Report for the Post Accident Monitoring System, WNA-VR-00283-WBT-P, Revision 3, dated December 2010. 1 contains the non-proprietary version of IV&V Summary Report for the Post Accident Monitoring System, WNA-VR-00283-WBT-NP, Revision 3, dated December 2010. Attachment 12 contains the Application For Withholding Proprietary Information From Public Disclosure WNA-VR-00283-WBT-P, Revision 3, IV &V Summary Report for the Post Accident Monitoring System (Proprietary), dated December 2010.
assessment regarding the acceptability of the proposal in terms of regulatory requirements and the protection of public health and safety."
268 EICB (Carte
)
8/19/2010 By letter dated March 12, 2010 (ML101680577), TVA stated that Responder: WEC 11/18/10 Warren Odess-Gillett took action to discuss with
- 34.
N Open Response included in letter Open-NRC Review Due 12/22/10
Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad49E5C.docx Open Items to be Resolved for SER Approval No.
SE Sec.
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Response
Acceptable Y/N Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments the application specific hardware and software architecture descriptions are addressed in the WBN2 PAMS System Design Specification (ML101680579, ML102040481, & ML102040482) and Software Requirements Specification (ML101050202, ML102040486, & ML1022040487).
Neither of these documents contain a non-proprietary figure of the architecture that can be used in the SE. Please provide a non-proprietary figure of the architecture.
Design Engineering to generate a non-prop figure 8 contains the non-proprietary version of the Westinghouse document Watts Bar 2 Common Q PAMS Block Diagram.
dated 12/3/10 276 7.6 7.6 EICB (Garg) 8/27/2010 In order for the staff to review the effects of multi control systems failure, provide the summary of the analyses documenting the effect on the plant based on the following events: (1) loss of power to all control systems powered by a single power supply; (2) failure of each instrument sensor which provides signal to two or more control systems; (3) Break of any sensor impulse line which is used for sensors providing signals to two or more control systems; and (4) failure of digital system based on the common cause software failure affecting two or more control systems. For each of these events, confirm that the consequences of these events will not be outside chapter 15 analyses or beyond the capability of operators or safety systems.
Responder: Webb The NRC reviewer confirmed this question applies to non-safety systems.
The Distributed Control System (DCS) implemented using Foxboro I/A hardware, replaces most of the non-safety related control systems for WBN Unit 2. The other non-safety-related control systems within the scope of this question are:
- a.
Rod Control - Failures of this system are addressed in FSAR Chapter 15.
- b.
Main Turbine Electro-Hydraulic Control System The following provides the requested summaries for the four events listed:
(1) The (DCS) segmentation analysis submitted on TVA letter to NRC dated August 11, 2010, Enclosure 2 (Reference 7) demonstrates that the loss of any single power source does not result in a loss of any DCS function. The other systems within the scope of this question are configured in the same manner as Unit 1, with redundant power sources such that the failure of a single power source does not cause a loss of function.
(2) Signals shared by more than one control function within the DCS are addressed in the DCS segmentation analysis submitted on TVA letter to NRC dated August 11, 2010, Enclosure 2 (Reference 7) which demonstrates that the loss of a single signal does not cause a failure of any critical control function.
The impact of a loss of signal to the other systems within the scope of this question is bounded by the loss of that signal to the individual system and has the same effect as for Unit 1.
(3) Where feasible, the Unit 2 design includes separate sense lines for redundant transmitters, thereby eliminating multiple single point failures which are present in Unit 1. A review of the transmitter sense line database was performed to identify multiple sensors on a single sense line that had control functions (transmitters and switches). Attachment 9 provides the results of the review and an analysis of the functions impacted by a sense line failure.
- 35.
Y Open Revised response provided in letter dated 12/22/10 Response provided in letter dated 10/21/10 Revised response provided in letter dated 11/24/10 Response Acceptable. 11/17/10 TVA changed the response in the latest writeup. The scope of the question applies to all non safety related control systems and is not limited to just three system listed by the TVA. TVA could use to envelope other control systems by Unit 1 analysis if they applies to Unit 2 systems also.
Open-NRC Review Due 11/24/10 TVA to provide justification for non-safety system other than DCS.
The statement that failure of sense line where more than one transmitter is connected would be bounded by the failure of a single transmitter does not make sense.
TVA needs to make a statement that all non-safety control systems have been evaluated against these criteria and have determined that their failure does not have consequences which will put the plant outside chapter 15 analyses.
EICB RAI ML102910008 Item#60 TVA Letter dated 10/21/10 Item No. 13
Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad49E5C.docx Open Items to be Resolved for SER Approval No.
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Response
Acceptable Y/N Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments There are no transmitters on shared sense lines, such that a sense line failure would impact any combination of the DCS, Rod Control or Main Turbine Electro-Hydraulic Control Systems.
(4) Limiting DCS failures were addressed in the segmentation analysis, supplemented by Fault Handling in the I/A Series System, Revision 1, submitted on TVA letter to NRC dated October 5, 2010, Attachment 42 (Reference 1). The other systems within the scope of this question are analog and therefore this question is not applicable.
All non-safety control systems have been evaluated against these criteria and TVA has determined that their failure does not have consequences which will put the plant outside chapter 15 analyses.
TVA Response to Follow-up NRC Request:
All non-safety related control systems were reviewed in the context of this question. The review found that failures of non-safety related control systems based on the scenarios in this RAI, do not have consequences which will put the plant outside the Chapter 15 analyses.
301 EICB (Singh) 1.TVA is requested to address the consequences of software common cause failure including all potential resulting failures (i.e.
total loss of CERPI, system fail as-is).
- 2. In addition, address how the actions stipulated in the plant Technical Specifications will be taken when the CERPI system indications are lost. Information notice IN 2010-10 (ML100080281) addresses the need to consider software failures and the actions required to assure that the plant will stay within its licensing basis.
- 3. Provide FMEA in support of your response.
- 4. FSAR Table 7.7-1, Plant Control System Interlocks lists interlock C-11 to block automatic rod withdrawal when 1/1 Control Bank D rod position is above setpoint. This interlock capability would be lost in case of total loss of CERPI. How is the rod block assured for this event?
- 5. How is automatic rod withdrawal affected in case of total loss of signals from the CERPI to the ICS? Is this interlock fail safe?
6.FSAR chapter 15, Section 2.3.2.1states that the resolution of the rod position indicator channel is 5% of span (7.2 inches). The CERPI system accuracy specified in the CERPI System requirements Specification, WNDS-DS-00001_WBT, Rev. 2 is 12 steps or 5.19%. The specified system accuracy seems to be greater than the accuracy assumed in the FSAR Chapter 15.
Please clarify this anomaly.
Responder: WEC/Davies/Clark TVA Partial Response:
For all accidents analyzed in WBN Unit 2 FSAR, Chapter 15, no credit is taken for the rod position indication system. For all continuous rod withdrawal accidents analyzed in WBN Unit 2 FSAR, Chapter 15, no credit is taken for any rod stop/block.
(1) Technical Specification 3.1.8, Rod Position Indication, does not have an action for total loss of indication; therefore, a total loss of CERPI puts the plant into LCO 3.0.3 which states:
When an LCO is not met and the associated ACTIONS are not met, an associated ACTION is not provided, or if directed by the associated ACTIONS the unit shall be placed in a MODE or other specified condition in which the LCO is not applicable. Action shall be initiated within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> to place the unit, as applicable, in:
MODE 3 within 7 hours8.101852e-5 days <br />0.00194 hours <br />1.157407e-5 weeks <br />2.6635e-6 months <br />; MODE 4 within 13 hours1.50463e-4 days <br />0.00361 hours <br />2.149471e-5 weeks <br />4.9465e-6 months <br />; and MODE 5 within 37 hours4.282407e-4 days <br />0.0103 hours <br />6.117725e-5 weeks <br />1.40785e-5 months <br />.
Exceptions to this Specification are stated in the individual Specifications. Where corrective measures are completed that permit operation in accordance with the LCO or ACTIONS, completion of the actions required by LCO 3.0.3 is not required.
- 36.
N Open Revised response included in letter dated 12/22/10.
Revised response included in letter dated 11/24/10.
Partial response in 10/29 letter.
Open-NRC Review Due 12/22/10
- 1) Please address how fail-as-is is detected i.e.
alarms, rod position deviation alarms, etc.
- 2) Response acceptable.
- 3) Response acceptable.
- 4) a. Response acceptable.
- b. Pl. address failure mode on fail-as-is.
- 5) Response acceptable.
- 6) Response acceptable.
TVA to address common cause failure as stated under response item 2.
Please explain how various alarms will continue to annunciate on software lockup?
RAI No. 11 ML102980005 10/26/2010 TVA Letter dated 10/29/10 Item No. 21 Note 1:
Effects of common cause software failure are addressed in DI&C-ISG-02 (ML091590268) Section 4 on pages 8 and 9. This document is publically available. Some excerpts are as follows:
For example, a failure to trip might not be as limiting as a partial actuation of an emergency core cooling system, with digital indications of a successful actuation.
In cases such as this, it may take an operator longer to evaluate and correct the safety system failure than it would if there was a total failure to send any actuation signal. For this reason, the evaluation of failure modes as a result of software CCF should include the possibility of partial actuation and failure to actuate with false indications, as well as a total failure to actuate.
The primary concern is that an undetected failure within the digital system could prevent proper system operation. A failure or fault that is detected can be addressed; however, failures that are non-detectable may prevent a system actuation when required.
Consequently, non-detectable faults are of concern.
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Acceptable Y/N Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments (2) CERPI common mode software failure Description of the CERPI systems installed at Watts Bar (Unit 1 & 2):
Each Programmable Logic Controller (PLC),
Maintenance Test Panel (MTP), and Operators Module (OM) is isolated within its own Train, A or B. Rod position information is provided to the OMs in the main control room via redundant data links. Each train (PLC, MTP, and OM) is electrically isolated from the other train.
Communications within a CERPI train (PLC, MTP, and OM) are continuously monitored. If communication is interrupted, this condition is annunciated to the operator in the control room. The MTP and OM display screens have rotating cursors in the upper right-hand corner of the display to indicate that the system is operating.
History of CERPI:
The basic PLC software associated with the CERPI system has been in use for over ten years. The first plant to utilize the CERPI PLC software was Beaver Valley. In 2003, the CERPI software was deployed with interfaces to the Common Q MTP and OM interfaces within the systems for Surry Units 1 & 2, and Watts Bar Unit 1. In 2009, the Watts Bar Unit 1 CERPI system was modified to allow for two independent trains of CERPI. The Watts Bar Unit 2 CERPI system is based on the Unit 1 design. Only the detectors and the detector interface boards are not redundant within the Watts Bar CERPI systems.
CERPI Software Failure Analysis With regard to the CERPI system software:
The software used on PLC-A is identical to that used on PLC-B.
The software used on MTP-A is identical to that used on MTP-B The software used on OM-A is identical to that used on OM-B.
A common cause failure affecting the software of one CERPI train would affect the other train as well.
Common cause problems associated with the CERPI software were mitigated by the Westinghouse software development process, factory acceptance testing, and site acceptance testing. There is no "fail as-is" scenario. Any failure of a hardware/software component (resulting in processor lock-up) would be immediately annunciated (Main Control Room alarm).
A loss of communication to the MTP, or OM would be annunciated, and the data values on the flat panel display would be displayed in magenta (indicating Need better explanation to understand the rationale behind the response.
Further response required to address CCF:
Total failure of software and lock-up alone would normally be detected. Staff is also concerned by undetected failure within the digital system that could prevent proper system operation. A failure or fault that is detected can be addressed; however, failures that are non-detectable may prevent a system actuation when required or may result in a partial actuation.
Please address the consequences of an undetected failures on system operation and alarms and interlocks including control bank D interlock. (See note 1 in the Comments column of this open item for reference)
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Acceptable Y/N Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments failure). A hardware/software failure in the PLC (resulting in processor lock-up) would result in an annunciator because of the watchdog alarm circuit associated with the PLC processor module.
A total loss of CERPI indication (e.g., loss of both AC power sources to the rod position cabinets) is possible, but this condition would be immediately annunciated. A complete loss of CERPI indication would lead to entering Technical Specification LCO 3.0.3. A more likely scenario would be loss of a single train of CERPI due to a hardware failure; in which case, there are no technical specification conditions to enter because a single train is capable of providing all rod indications needed for control.
(3) There is no FMEA for the CERPI system.
(4) Control Bank D Automatic Rod Withdrawal Limit would be assured by Operations and control circuitry by the following 2 methods:
- a.
A simultaneous failure of all indications of the Rod Position Indication System places the plant in LCO 3.0.3, since it would prevent compliance with actions in LCO 3.1.8.
- b.
CERPI cabinet relays A-KX-18 and B-KX-18 are the PLC controlled components of Rod Withdrawal Limit. The relays are active low requiring power to activate the contacts in the control circuit. Total loss of CERPI will open the contacts and block Automatic Rod Withdrawal.
Additionally, Annunciator window 64F will annunciate to show C-11 BANK D AUTO WITHDRAWAL BLOCKED.
(5) The CERPI Maintenance and Test Panels are used to set the Rod Withdrawal Limit with output signal to ICS as a parallel path. As stated above, the relays are the controlling functions and loss of signal to ICS will not affect the capability of the control circuit to disable the Automatic Rod Withdrawal function. The C-11 interlock is fail safe with regards to loss of power.
(6) The cycle-specific analyses for the static rod misalignment assume full misalignment of an individual rod from the bank position indicator(s). Such a misalignment exceeds that which is possible during plant operations when accounting for the most adverse combination of the rod deviation alarm and uncertainty of the rod position indicator (both 12 steps). For consistency of parameter (and units) with the deviation alarm and position indicator uncertainty, the WBN Unit 2 FSAR Chapter 15, Section 2.3.1 will be revised in Amendment 102 to read:
The resolution of the rod position indicator channel is +/-
12 steps. Deviation of any RCCA from its group by
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Acceptable Y/N Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments twice this distance (24 steps) will not cause power distributions worse than the design limits. The deviation alarm alerts the operator to rod deviation with respect to group demand position in excess of 12 steps. If the rod deviation alarm is not operable, the operator is required to take action as required by the Technical Specifications.
This change is consistent with FSAR section 4.3.2.2.5, Limiting Power Distributions Page 4.3-13, which states the maximum deviation assumed is 12 steps.
TVA Response to Follow-up NRC Request:
- 1.
The following response is based on the information contained in Westinghouse letter WBT-D-2722 Response To Question On CERPI RAI #301, dated December 6, 2010 (Reference Error!
Reference source not found.).
TVA believes the follow-up question is related to the statement found in the response to question 2 of NRC Matrix Item 301, submitted on TVA Letter to NRC Watts Bar Nuclear Plant (WBN) Unit 2 -
Instrumentation and Controls Staff Information Requests, dated November 24, 2010, (Reference Error! Reference source not found.)
Any failure of a hardware/software component (resulting in processor lock-up) would be immediately annunciated (Main Control Room alarm)
The CERPI system will not annunciate various system alarms if the software is in a lockup condition.
However, the system will annunciate an alarm based on the PLC watchdog relay dropping out because the software has locked up the processor. So, even if the PLC locks up, an alarm is generated to alert the operators in the Main Control Room (MCR).
The CERPI system alarms (that connect to the plant annunciator system) are wired to specific alarm relays within the CERPI system. With the exception of the watchdog alarm relay, the alarm relay coils are actuated by the PLC Digital Output Module. The plant annunciator wiring connects to either the Normally Open (NO) or the Normally Closed (NC) contacts of the associated alarm relay. The watchdog relay is configured such that when a timeout condition occurs (the PLC locks up), the watchdog relay de-energizes, and a CERPI System Trouble alarm is annunciated in the MCR.
- 2.
As previously stated;
- a.
For all accidents analyzed in WBN Unit 2 FSAR, Chapter 15, no credit is taken for the rod position indication system. For all continuous rod withdrawal accidents analyzed in WBN Unit 2
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Acceptable Y/N Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments FSAR, Chapter 15, no credit is taken for any rod stop/block. Based on this, an undetected failure of the CERPI would not have any impact on the WBN Unit 2 accident analysis.
- b.
Concerning the impact on Bank D, CERPI cabinet relays A-KX-18 and B-KX-18 are the PLC controlled components of Rod Withdrawal Limit.
The relays are active low requiring power to activate the contacts in the control circuit. Total loss of CERPI will open the contacts and block Automatic Rod Withdrawal. Additionally, Annunciator window 64F will annunciate to show C-11 BANK D AUTO WITHDRAWAL BLOCKED.
Therefore, this would not result in an undetected failure. In the event of an undetected failure that kept relays A-KX-18 and B-KX-18 energized, the worst case scenario would be a continuous rod withdrawal event. This event is already addressed in the Chapter 15 accident continuous rod withdrawal accident analysis which takes no credit for rod stops/blocks.
306 7.1 7.1 EICB (Garg)
FSAR amendment 100, page 7.1-12 provides the definition of Allowable value which is not consistent with TSTF-493 as allowable value is the value beyond which instrument channel is declared inoperable.
Responder: Hilmes The FSAR Allowable Value definition will be revised to be consistent with the TSTF-493 in FSAR Amendment 102. contains the revised FSAR section 7.1.2.1.9 that will be included in FSAR Amendment 102 that reflects this change.
- 37.
Y Open Response is included in letter dated 10/29/10 Open-NRC Review Due 12/17/10 Pending FSAR Amendment 102 submittal EICB RAI ML102910008 Item#69 TVA Letter dated 10/29/10 Item No. 26 307 7.1 7.1 EICB (Garg)
(1) FSAR amendment 100, Section 7.1, page 7.1-12, definition of Acceptable as found tolerance is not in accordance with TSTF-493 as AAF is the limit beyond which the instrument channel is degraded but may be operable and its operability must be evaluated. (2) Also it states that AAF is based on measurable instrument channel uncertainties, such as drift, expected during the surveillance interval. These wording should be revised to agree with the wording given in RIS2006-17 as these wordings are very vague. (3) Also it states that RPS functions use double sided tolerance limits for the AAF. Since AAF is a band it will always be double sided and therefore, this clarification does not mean anything and it clouds the issue.
Responder: Hilmes (1) The Acceptable As Found (AAF) definition will be revised to be consistent with TSTF-493 in FSAR Amendment 102. Attachment 3 contains the revised FSAR section 7.1.2.1.9 that will be included in FSAR Amendment 102 that reflects this change.
(2) Additional detail on the AAF methodology was provided in sections 7.1.2.1.9.1, Westinghouse Setpoint Methodology, and 7.1.2.1.9.2, TVA Setpoint Methodology. These sections will be revised to clarify the AAF calculations in FSAR Amendment 102. contains the revised FSAR section 7.1.2.1.9 that will be included in FSAR Amendment 102 that reflects this change.
(3) The statement about double sided limits addresses a TSTF requirement that the AAF tolerance consider errors in both the conservative and non-conservative directions and ensures that an as-found value which exceeds these limits, even in the conservative direction (away from the safety limit), will be evaluated. Attachment 3 contains the revised FSAR section 7.1.2.1.9 that will be included in FSAR Amendment 102 that reflects this change.
- 38.
Y Open Response is included in letter dated 10/29/10 Open-NRC Review Due 12/17/10 Pending FSAR Amendment 102 submittal EICB RAI ML102910008 Item#70 TVA Letter dated 10/29/10 Item No. 27 308 7.1 7.1 CB (G
ar (1) FSAR Amendment 100, Section 7.1, page 7.1-13, definition of Acceptable as left tolerance is not in accordance with TSTF-493 as Responder: Hilmes
- 39.
Y Open Open-NRC Review EICB RAI ML102910008 TVA Letter dated 10/29/10
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Acceptable Y/N Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments it states that this may take calibration history into consideration.
This is very vague and ambiguous. (2) Also it states that RPS functions use double sided tolerance limits. Since ALF is a band it will always be double sided and therefore, this clarification does not mean anything and clouds the issue.
(1) The statement about using calibration history to determine the Acceptable As Left (AAL) will be deleted in FSAR Amendment 102. Attachment 3 contains the revised FSAR section 7.1.2.1.9 that will be included in FSAR Amendment 102 that reflects this change.
(2) See response to letter item 27 (NRC Matrix Item 307).
Response is included in letter dated 10/29/10 Due 12/17/10 Pending FSAR Amendment 102 submittal Item#71 Item No. 28 309 7.1 7.1.2.1.
9.1 EICB (Garg)
(1) FSAR amendment 100, Page 7.1-14, Westinghouse setpoint methodology, states that AAF is the algebraic sum of the.. This is not acceptable. As algebraic sum is non conservative compared to the SRSS method and will mask the operability of the instrument channel and therefore, it is not acceptable to the staff. (2) It also make the statement that ALT may take calibration history into consideration which is vague and ambiguous.
Responder: Hilmes (1) The AAF calculation for Westinghouse setpoint methodology calculations in TI-28 for TSTF-493 will be revised to use the Square Root Sum of the Squares (SRSS) method.
(2) AAF definition will be revised to be consistent with TSTF-493 as discussed with the NRC Staff, in FSAR Amendment 102. Attachment 3 contains the revised FSAR Amendment 102 Change Markup that reflects this change.
- 40.
Y Open Response is included in letter dated 10/29/10 Open-NRC Review Due 12/17/10 Pending FSAR Amendment 102 submittal EICB RAI ML102910008 Item#72 TVA Letter dated 10/29/10 Item No. 29 310 7.1 7.1.2.1.
9.2 EICB (Garg)
(1) FSAR amendment 100, Page 7.1-14, TVA setpoint methodology, states that for AAF.and other measurable uncertainties as appropriate (i.e., those present during calibration.) should be changed to present during normal operation (2) Also on page 7.1-15, states that ALT may take calibration history into consideration which is vague and ambiguous.
Responder: Hilmes TVA Response:
(1) The AAF definition will be revised in FSAR Amendment 102 to read:
A tolerance band on either side of the NTSP which defines the limits of acceptable instrument performance, beyond which the channel may be considered degraded and must be evaluated for operability prior to returning it to service. Channels which exceed the AAF will be entered into the Corrective Action Program for further evaluation and trending. The Acceptable As Found tolerance is the SRSS combination of drift, maintenance and test equipment (M&TE) accuracy and readability, and calibration/reference accuracy. Other uncertainties may be included in the AAF if applicable.
This revision eliminates the concern regarding uncertainties. Attachment 3 contained in the October 29, 2010 letter provided the revised FSAR Section 7.1.2.1.9 that will be included in FSAR Amendment 102 that reflects this change.
(2) The AAL definition will be revised in FSAR Amendment 102 to read:
A tolerance band on either side of the NTSP within which an instrument or instrument loop is left after calibration or setpoint verification. The Acceptable As Left tolerance is equal to or less than the SRSS combination of reference accuracy, M&TE accuracy and M&TE readability. Other uncertainties may be included in the AAL if applicable.
This revision eliminates the concern regarding calibration history. Attachment 3 contained in the
- 41.
Y Open Response is included in letter dated 10/29/10 Open-NRC Review Due 12/17/10 Pending FSAR Amendment 102 submittal EICB RAI ML102910008 Item#73 TVA Letter dated 10/29/10 Item No. 30
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Acceptable Y/N Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments October 29, 2010 letter provided the revised FSAR Section 7.1.2.1.9 that will be included in FSAR Amendment 102 that reflects this change.
311 7.1 7.1 EICB (Garg)
Both Westinghouse and TVA setpoint methodology do not have any discussion on single sided calculation. Please confirm that single sided calculation has not been used for all setpoints with TSTF-493 and provide a statement to that effect in the FSAR.
Responder: Hilmes A statement that single-sided corrections are not used for TSTF-493 setpoints will be included in FSAR Amendment 102. Attachment 3 contains the revised FSAR section 7.1.2.1.9 that will be included in FSAR Amendment 102 that reflects this change.
- 42.
Y Open Response is included in letter dated 10/29/10 Open-NRC Review Due 12/17/10 Pending FSAR Amendment 102 submittal EICB RAI ML102910008 Item#74 TVA Letter dated 10/29/10 Item No. 31 318 7.5.2.3 7.5 EICB (Singh)
TVA has provided the following documents for RM-1000 equipment qualification:
(i)
Qualification Test Report for RM-1000 Processor Module and Current-To-Frequency Converter 04508905-QR (January 2001)
(ii)
Qualification Test Report Supplement, RM-1000 Upgrades 04508905-1SP (June 2006)
(iii)
Qualification Test Report Supplement, RM-1000 Upgrades 04508905-2SP (June 2008)
(iv)
Qualification Test Report Supplement, RM-1000 Upgrades 04508905-3SP (May 2008)
Please clarify whether all of these are fully applicable to WBN2 or are they applicable with exceptions? If with exceptions, then please clarify what those are.
Supplement 3 was issued one month prior to supplement 2.
Please explain the reason for the same.
Responder: Temples (i)
Applicable to WBN Unit 2. 04508905-1QR is applicable only in regards to the RM-1000, with the exception of re-qualification of certain RM-1000 equipment differences covered in the -1SP report.
The Current-to-Frequency (I-F) converter module qualifications in the base report and the -1SP report are not applicable to the RM-1000s, and will be used later as references in the WBN Unit 2 specific qualification reports.
(ii)
Applicable to WBN Unit 2.
(iii)
Not applicable to WBN Unit 2 (iv)
Not applicable to WBN Unit 2 The 04508905-3SP report was prepared for another TVA plant, as a monitor system-level report, where the system included equipment mostly based on the base report equipment items. These two -2SP and -3SP supplement reports were essentially worked concurrently, but the -2SP document review/release process resulted in the release time difference.
TVA Response to Follow-up NRC Request:
NOTE: The response for the current to frequency (I to F) converter in item 1 below is a reversal of the response previously provided in TVA to NRC letter dated October 29, 2010 (Reference 22). General Atomics Electronic Systems Inc. (GA-ESI) notified TVA of this change on December 8, 2010 (Reference 20).
(1) The applicability of the qualification reports from GA-ESI e-mail dated December 10, 2010 (Reference 19) is as follows:
- a.
04508905-QR Qualification Test Report for RM-1000 Processor Module and Current-to-
- 43.
N Open Revised response is included in letter dated 12/22/10.
Note check 04508905-1QR or QR. Staff version is QR only.
Response is included in letter dated 10/29/10 Open-NRC Review Due 12/22/10 Response update required. It is clear that 04508903-2SP and -
3SP are not applicable.
The response for applicability of 04508905-QR and -
1SP to RM-1000 and IF converter is not clear.
Check page numbers of Appendix F (missing/duplicate pages).
Check applicability of Appendix C to RM1000 instead of RM2300?
See items 336 and 337.
All equipment qualification reports including supplements 2SP and 3SP have been reviewed as vendor drawings for WBN-2. Please explain the reason for applicability of one report and not the other.
Further all TVA/Bechtel reviews seems to be dispositioned as Code 4, Review not required.
Work may proceed.
The applicable reports should have been reviewed prior to dispositioning them.
Please explain the apparent lack of review of WBN-2 applicable documents. Was RAI No. 28 ML102980005 10/26/2010 TVA Letter dated 10/29/10 Item No. 34
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Acceptable Y/N Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Frequency Converter is applicable to the WBN Unit 2 RM-1000 and I to F converter modules.
- b.
04508905-1SP Supplement to Qualification Test Report for RM-1000 Processor Module and Current-to-Frequency Converter is applicable to the WBN Unit 2 RM-1000 module.
- c.
04508905-1SP is not applicable to the WBN Unit 2 I to F converter module.
- d.
04508905-2SP Qualification Test Report Supplement, I-F Converter Upgrades is applicable to the WBN Unit 2 I to F converter module.
GA-ESI provided two other reports required to support qualification of the containment high range radiation monitors. The report descriptions are from GA-ESI e-mail on December 8, 2010 (Reference 20). The reports are:
- e.
GA-ESI report 04038903-QSR, Qualification Summary Report for Watts Bar Nuclear Plant Unit 2 Replacement Radiation Monitors: The report is the principle report and the starting point for all the radiation monitors provided as part of the replacement contract. The report describes each monitor; referenced to the technical manual for the physical and functional description and lists the major components of the monitor system.
Report section 3 identifies the TVA Watts Bar Unit 2 Environmental, Seismic, Electromagnetic Compatibility (EMC), and software requirements for each monitor. In section 4 a brief description of GA-ESI generic qualification programs for all radiation monitoring equipment in each of the four above areas is provided. The qualification basis for each monitor is provided in a separate supplement to the principle report and is identified in section 5.
- f.
GA-ESI report 04038903-7SP, Qualification Basis for 04034101-001 (2-RE-90-271, -272, -
273, & -274) [TVA Note: These are the containment post accident high range radiation monitors.]: GA-ESI report 04038903-7SP is divided into subsections to address the Environmental, Seismic, EMC, and Software qualification basis for the High Range Area Monitors. Within each subsection, the HRAM is compared to a tested or analyzed article to demonstrate similarity and/or evaluate differences, the tests that were performed, and evaluation to demonstrate qualification. In most cases, the qualification basis references other documents. In addition to qualification, a section is provided that lists the life of those replaceable components that have life expectancy less than appropriate review guidance used?
Further update required Provide model number/part number for the RM-1000 and I/F converter used for WBN-2.
Submit a copy of the relevant reviewed versions of the qualification reports.
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Acceptable Y/N Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments 40 years.
(2) This is addressed by response to RAI Question 336 in TVA to NRC letter dated November 24, 2010 (Reference 8)
(3) This is addressed by response to RAI Question 337 in TVA to NRC letter dated November 24, 2010 (Reference 8)
(4) The 04508905-3SP Qualification Test Report Supplement, RM-1000 Upgrades is not applicable to WBN Unit 2 (Reference 19).
Please see Item 1, above, for applicability of the other reports.
(5) TVA provided the proprietary versions of the reports by letter dated March 12, 2010 (Reference 10). By letter dated July 15, 2010 (Reference 23), TVA provided the non-proprietary version of the reports and included a copy of the proprietary report which had been erroneously marked as having not been reviewed.
04508905-QR report has been reviewed by TVA. The review of the remaining reports is ongoing.
(6) See item 5.
326 EICB(Garg)
TVA uses double-sided methodology for as-found and as-left Reactor Trip and ESFAS instrument setpoint values. The FSAR will be revised in a future amendment to reflect this methodology Responder: Webb contains the revised FSAR section 7.1.2.1.9 that will be included in FSAR Amendment 102 that reflects this change.
- 44.
Y Open October 22, 2010 Response is included in letter dated 10/29/10 Open-NRC Review Due 12/17/10 Pending FSAR Amendment 102 submittal TVA Letter dated 10/29/10 Item No. 37 327 DORL (Poole) 6 contains Foxboro proprietary drawings 08F802403-SC-2001 sheets 1 through 6. An affidavit for withholding and non-proprietary versions of the drawings will be submitted by January 31, 2011.
Responder: Webber In accordance with correspondence from Foxboro, there is no proprietary information contained in the 08F802403-SC-2001 drawings. Based on this, no affidavit for withholding is required. Attachment 1 contains versions of the drawings with the proprietary information block removed.
- 45.
Y Open Response Included in letter dated 11/24/10 Open-NRC Review Due 11/24/10 329 7.6.1 7.6.7 EICB (Singh)
Section 7.6.7 of the FSAR (Amendment 100) states that, The DMIMS-DX' audio and visual alarm capability will remain functional after an Operating Basis Earthquake (OBE). All of the DMIMS-DX' components are qualified for structural integrity during a Safe Shutdown Earthquake (SSE) and will not mechanically impact any safety-related equipment.
TVA to clarify the seismic qualification of the loose parts monitoring system and include the appropriate information in Table 3.10 (or another suitable section) of the FSAR.
Responder: Clark The title of FSAR Section 3.10 is Seismic Design of Category I Instrumentation and Electrical Equipment. Since the Loose Part Monitoring System is not a Category 1 system, it is not included in the scope of 3.10. FSAR Section 7.6.7, Loose Parts Monitoring System (LPMS) System Description, identifies basic system seismic design criteria which are consistent with the requirements of TVA Design Criteria, WB-DC-30-31, Loose Parts Monitoring System. As identified in FSAR Table 7.1-1, Watts Bar Nuclear Plant NRC Regulatory Guide Conformance, the system conforms to Reg. Guide 1.133 as modified by Note 12. Reg. Guide 1.133 identifies the seismic requirements and Note 12 does not contain any exception to the Regulatory Guide seismic requirements.
- 46.
N Open Response is included in letter dated 10/29/10 Open-NRC Review Due 12/17/10 Pending FSAR Amendment 102 submittal.
TVA to confirm that the equipment has been seismically qualified as required and that TVA reviewed and found the report acceptable.
RAI No. 1 ML102980005 10/26/2010 TVA Letter dated 10/29/10 Item No. 39
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Acceptable Y/N Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments The Westinghouse LPMS seismic report, EQ-QR-33-WBT, Revision 0, Seismic Evaluation of the Digital Metal Impact Monitoring System (DMIMS-DXTM) for Watts Bar Unit 2, will be added as Reference 7 to FSAR section 7.6 in amendment 102.
TVA response does not list the seismic test document and its acceptance by TVA.
FSAR should reference the test document as the source document for tracking conformance.
331 7.6.1 7.6.7 EICB (Singh)
As a follow up of OI 190, Staff has reviewed the proprietary version of the DMIMS-DX system description to verify the conformance claims in the FSAR. Staff has noted the following insufficiencies and discrepancies between the FSAR and the proprietary version of the system description for loose parts monitoring system provided by TVA.
- 1) FSAR, Amendment 100, page 7.6-5 states, During baseline testing, the reactor vessel and steam generator are impacted three feet from each sensor with a force of 0.5 ft-lb. Loose parts detection is accomplished at a frequency of 1 kHz to 20 kHz, where background signals from the RCS are acceptable.
Spurious alarming from control rod stepping is prevented by a module that detects CRDM motion commands and automatically inhibits alarms during control rod stepping.
The online sensitivity of the DMIMS-DX' is such that the system will detect a loose part that weighs from 0.25 to 30 Ib and impacts with a kinetic energy of 0.5 ft-lb on the inside surface of the RCS pressure boundary within 3 ft of a sensor.
The source of this information is not cited nor is it described in the system description. TVA to provide the source of the information and update the system description as needed.
- 2) Regulatory Guide (RG) 1.133, rev.1, regulatory position C.1.g states that, Operability for Seismic and Environmental Conditions. Components of the loose-part detection system within containment should be designed and installed to perform their function following all seismic events that do not require plant shutdown, i.e., up to and including the Operating Basis Earthquake (OBE). Recording equipment need not function without maintenance following the specified seismic event provided the audio or visual alarm capability remains functional. The system should also be shown to be adequate by analysis, test, or combined analysis and test for the normal operating radiation, vibration, temperature, and humidity environment.
FSAR, Amendment 100, page 7.6-5 states, The DMIMS-DX' audio and visual alarm capability will remain functional after an Operating Basis Earthquake (OBE). All of the DMIMS-DX' components are qualified for structural integrity during a Safe Shutdown Earthquake (SSE) and will not mechanically impact any safety-related equipment.
Paragraphs 4.c and 4.d of the system description are not consistent with the seismic qualifications described in the FSAR. TVA to provide the source of the information contained in the FSAR and update the system description as Responder: WEC/Harless/Clark TVA Partial Response:
- 1) The source of the information is the DMIMS-DXTM Operations and Maintenance Manual, TS3176, Revision 0, dated August 2010. Attachment 14 contains the revised system description, Westinghouse DIMMS-DXTM Loose Part Detection System Description, Revision 1. The Westinghouse DIMMS-DXTM Loose Part Detection System Description, Revision 1 will be added as Reference 9 to section 7.6 in FSAR Amendment 102.
- 2) The source of the information is the DMIMS-DXTM seismic qualification report, Westinghouse report EQ-QR-33-WBT, Revision 0, Seismic Evaluation of the Digital Metal Impact Monitoring System (DMIMS-DXTM) for Watts Bar Unit 2. Attachment 14 contains the revised system description, Westinghouse DIMMS-DXTM Loose Part Detection System Description, Revision 1.
- 3) The entries for the following items in FSAR Section 7.6.7 will be modified in Amendment 102 as shown in for draft revision to WBN Unit 2 FSAR Section 7.6.7, Loose Part Monitoring System (LPMS)
System Description.
Sensors (In Containment)
Softline Cable (In Containment)
Preamplifier (In Containment) contains the FSAR Amendment 102 Change Markups that reflect these changes.
- 4) The source of the information is Westinghouse Letter WBT-D-2580, Tennessee Valley Authority Watts Bar Nuclear Plant Unit 2 Response to NRC RAIs on LPMS (Reference 5). Attachment 14 contains Westinghouse DIMMS-DXTM Loose Part Detection System Description, Revision 1.
In responding to Item 4, conflicting information was found between the Westinghouse-prepared FSAR section and various Westinghouse technical documents. To fully respond to this item, a change to the FSAR is required to change the minimum flat sensor frequency response from 5 Hz to 10 Hz. Attachment 3
- 47.
N Open Response included in letter dated 12/22/10 Open-NRC Review Due 12/22/10 Pending FSAR Amendment 102 submittal TVA to reference the DMIMS-DXTM Operations Manual in the FSAR as the source document TVA to reference the source document for item# 4 per the response.
RAI No. 8 ML102980005 10/26/2010 TVA Letter dated 10/29/10 Item No. 40 Follow-up of OI-190.
Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad49E5C.docx Open Items to be Resolved for SER Approval No.
SE Sec.
FSAR Sec.
Response
Acceptable Y/N Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments needed.
- 3) The system description clearly describes the In-containment equipment and DIMMS-DX Cabinet equipment. The FSAR should be updated to reflect the equipment locations for clarification purposes.
- 4) The information regarding frequency ranges of the sensors is included on page 7.6-6 of Amendment 100 of the FSAR but the system description does not contain this information.
Please provide the source of this information and update the system description to reflect the appropriate information.
- 5) Please provide information as to how the in-containment components are qualified for vibration as addressed in regulatory position C.1.g of RG 1.133.
contains the FSAR Amendment 102 Change Markups that reflect the revised frequency response of the sensor.
Westinghouse document 1TS3182, Revision 0, Watts Bar Unit 2 DMIMS-DXTM System Validation Data Package, dated July 2010 has been added as reference 8 to FSAR Section 7.6 in amendment 102. Per Westinghouse letter WBT-D-2580, this document will be revised to reflect the 10Hz minimum frequency and provide the basis for the frequency response values in the FSAR.
- 5) In-containment component qualification for vibration as addressed in regulatory position C.1.g of RG 1.133, will be addressed in a future RAI response letter.
TVA Partial Response:
Items 1) through 4) were addressed in the partial response provided in TVA to NRC letter dated October 29, 2010. Item 5 is addressed as follows:
TVA has reviewed the information provided by Westinghouse describing how the Loose Part Monitoring System (LPMS) sensor is qualified for normal operating conditions provided in Westinghouse letter WBT-D-2782, dated December 17, 2010 (Reference 11) as addressed in regulatory position C.1.g of Reg. Guide 1.133 and found it acceptable. Vibration qualification is not applicable to the softline cable. Due to the installation location (junction boxes mounted to the shield or fan room walls) and previous seismic qualification, vibration qualification of the charge converter/preamplifier is not required. This completes the response to this item.
334 7
7 EICB (Darbali)
FSAR Figure 7A-3 Mechanical Flow and Control Diagram Symbols doesnt show the symbols for the first column of valves.
Please correct this in a future FSAR amendment.
Responder: Stockton
- 48.
Y Open Figure will be corrected in FSAR Amendment 102.
Open-NRC Review Due 12/17/10 Pending FSAR Amendment 102 submittal.
RAI not required.
N/A RAI not required because the figure is not part of any SE section.
335 7.6.1 7.6.7 EICB (Singh)
LPMS: Reference to OI-331, sub item 2.
Provide analysis, test, or combined analysis and test for normal operating radiation, temperature, and humidity environment per regulatory position C.1.g of RG 1.133. As an alternate TVA may confirm that the required equipment has been qualified for the environments stated in RG 1.133, position C.1.g and that TVA has reviewed the test report and found it acceptable.
Responder: WEC TVA has reviewed the information provided by Westinghouse describing how the Loose Part Monitoring System (LPMS) sensor is qualified for normal operating conditions provided in Westinghouse letter WBT-D-2782, dated December 17, 2010 (Reference 11) as addressed in regulatory position C.1.g of Reg. Guide 1.133 and found it acceptable. The qualification information on the softline cable and charge converter/preamplifier is being assembled and will be submitted by March 11, 2011.
- 49.
N Open Partial Response included in letter dated 12/22/10 Open-NRC Review Due 12/22/10 340 7.5.2.3 7.5 EICB (Singh)
Provide test result curves for all EMI/RFI tests listed in Table 3.2.3 (page 3-8) of the Qualification Test Report 04508905-QR. In addition, please provide the standards or the guidance documents used as the source for ENV 50140, ENV 55011 Class A, and EN Responder: GA The following responses are based on e-mail: GA-ESI to Bechtel, dated December 8, 2010 (Reference 20),
- 50.
N Open Response included in letter dated 12/22/10.
Open-NRC Review Due:12/22/10
Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad49E5C.docx Open Items to be Resolved for SER Approval No.
SE Sec.
FSAR Sec.
Response
Acceptable Y/N Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments 55022 Class B.
(1) The EMI/RFI tests described in Table 3-2 are based on GA-ESI report 04509050 and are summarized in GA-ESI report 04508905-QR. The independent laboratory report, with curves, is part of GA-ESI report 04509050.
Subsequent to issuing GA-ESI report 04508905-QR additional EMC testing was performed in accordance with TVA specific requirements. The results of the subsequent EMC testing are reported in GA-ESI report 04038800. GA-ESI report 04038800 includes the test curves and the report is used as the basis for EMC qualification of the Upper and Lower Inside Containment Post Accident Radiation Monitors (2-RE-90-271 through -274). The results of the testing and the acceptability of the RM-1000 monitors for use at WBN Unit 2 are addressed in GA-ESI report 04038903-7SP. This report will be submitted no later than January 28, 2010.
(2) ENV 50140, EN 55011, and EN 55022 are British Standard Institution (BSI) publications concerning equipment electromagnetic and radio frequency performance. The standard titles are shown below:
- a.
ENV 50140 - Electromagnetic Compatibility -
Basic Immunity Standard - Radiated Radio-Frequency Electromagnetic Field - Immunity Test
- b.
EN 55011 - Industrial, scientific and medical equipment - Radio-frequency disturbance characteristics - Limits and methods of measurement
- c.
EN 55022 - Information technology equipment -
Radio disturbance characteristics - Limits and methods of measurement 341 7.5.2.3 7.5 EICB (Singh)
FSAR Tables 3.10 list seismically qualified equipment. However, these tables do not list the containment high range radiation monitors. Please add them to the appropriate FSAR table(s) or justify why they should not be included in the FSAR 3.10 series of tables.
A review of WBN Unit 2 FSAR amendment 102 chapters 3.10, 11 and 12 was performed. The reviewer was unable to locate seismic qualification information for the radiation monitoring system in those chapters. A review of chapter 3.11 confirmed that radiation monitoring is included in the environmentally qualified systems.
It appears that seismic qualification of the radiation monitoring equipment was unintentionally omitted from FSAR chapter 3.10. FSAR chapter 3.10 will be updated to include the qualified radiation monitoring equipment in a future FSAR amendment.
- 51.
Open Open-NRC Review 342 7.5.2.3 7.5 EICB (Singh)
Please confirm that RM-1000 monitors and the associated equipment is supplied power from redundant battery backed class 1E power sources.
The RM-1000 containment high range radiation monitors are powered from 2-RM-90-271 & 2-RM-90-273 - Vital Power Board 2-III Breaker 45 Train A and 2-RM-90-272 & 2-RM 274 - Vital Power Board 2-IV Breaker 47 Train B. The vital power boards are battery backed.
- 52.
Open Open-NRC Review 343 7.5.2.3 7.5 EICB (Singh)
Seismic RRS in the 04508905-QR report Figures 3-2 and 3-3 show Required Response Spectra (RRS) to be greater than 20 gs. The Test Response Spectra (TRS) in Figures 4-11 and 4-12 appears to be limited to about 15 g maximum. Please explain this apparent lack of consistency between the RRS and the TRS. Will this document be revised to take care of this inconsistency?
(1) The cause of the difference between the RRS and TRS was a test equipment failure at the test facility. When the test equipment failed, the facility was unable to use the table capable of 20gs. Rather than delay testing for six months, the facility proposed and GA-ESI agreed to use a smaller table with a lower capability.
The justification was that the resulting TRS would still
- 53.
Open Open-NRC Review
Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad49E5C.docx Open Items to be Resolved for SER Approval No.
SE Sec.
FSAR Sec.
Response
Acceptable Y/N Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments envelope the majority of US nuclear plants RRS.
(2) To TVAs knowledge GA-ESI does not plan to revise this report. This is a baseline report that is used as a basis for producing individual plant specific reports.
092 DORL (Poole) 5/20/2010 TVA to review Licensee Open Item list and determine which items are proprietary.
Responder: Hilmes This item will close when we are no longer using this document as a communications tool.
- 1.
Y Open Open-TVA Due: SER Issue Continuous review as items are added 323 EICB(Garg)
WCAP-13869 revision 1 was previously reviewed under WBN Unit 1 SER SSER 13 (Reference 8). Unit 2 references revision 2. An analysis of the differences and their acceptability will be submitted to the NRC by November 15, 2010 Responder: Hilmes/Unit 1 2 contains the WCAP 13869 Revision 1 to Revision 2 Change Analysis.
- 1.
Y Open Response is included in letter dated 10/29/10 The staff is confused with the response since both units have reference leg not insulated Rev 2 should apply to Unit 1 also and there should be no difference between Unit 1 and 2 Open-TVA Unit 1 Due: 12/22/10 TVA Letter dated 10/29/10 Item No. 36 338 7.5.2.3 7.5 EICB (Singh)
In page 3-15 and appendix B of Qualification Test Report 04508905-QR, licensee described the selection of seismic required response spectra (RRS) and indicated Figure 3-2 (page 3-17), Figure 3-3 (page 3-18) are the RRSs used. The RRS curves used for actual testing are lower than the RRS curves that are shown on Figures 3-2 and 3-3. The RRS curves used for testing are shown in Figure 4-5, 4-6, 4-7, 4-8, 4-11, 4-12, 4-13, and 4-14 (pages 4-25, 4-26, 4-28, 4-29, 4-37, 4-38, 4-40, 4-41).
Please clarify and justify why the RRS curves used in actual tests are lower than the RRS curves determined in Figures 3-2 and 3-3.
In addition please justify that the RRS used for testing envelopes the RRS required for WBN-2 application specific seismic conditions.
Responder: Civil EQB Get date from Bob Brown
- 1.
N Open Open-TVA/Bechtel Due: 12/22/10 339 7.5.2.3 7.5 EICB (Singh)
In the Qualification Test Report 04508905-QR, the licensee provided only eight Safe Shutdown Earthquake (SSE) Test Response Spectra (TRS) as mentioned in the previous open item (OI-338). Please provide all SSE and Operating Basis Earthquake (OBE) TRS plots for NRC review.
Responder: Bob Brown
- 2.
N Open Open-TVA/Bechtel Due: 12/22/10 069 7.5.2 7.5.1 EICB (Carte)
By letter dated March 12, 2010 TVA stated that the target submittal date for the "Watts Bar 2 PAMS Specific FAT Report" was October 2010.
Responder: WEC Date: 5/25/10
- 1.
N Open Awaiting for document to be docketed by TVA.
Open-TVA/WEC Due 2/18/11 N/A - No question was asked. Item was opened to track comm8ittment made by applicant.
N/A 074 7.5.2 7.5.1 EICB (Carte)
By letter dated March 12, 2010 TVA stated that the target submittal date for the Post FAT IV&V Phase Summary Report was November 30, 2010.
Responder: WEC Date: 5/25/10
- 2.
N Open TVA to provide due date.
Open-TVA/WEC Due 2/21/11 N/A - No question was asked. Item was opened to track commitment made by applicant.
N/A 081 7.5.2 7.5.1 EICB (Carte) 5/6/2010 The PAMS Licensing Technical Report (WNA-LI-00058-WBT Rev.
0, Dated April 2010), in Section 7, lists codes and standards applicable to the Common Q PAMS. This list contains references to old revisions of several regulatory documents, for example:
Responder: Merten/WEC The codes and standards documents listed in Section 7 of the Common Q PAMS Licensing Technical Report are the documents that the Common Q platform was licensed to when the NRC approved the original topical report and
- 3.
N Open ML101600092 Item No.1: There are three sets of regulatory criteria that relate to a Common Q application (e.g. WBN2 Open-TVA/WEC Due 12/22/10 TVA to provide requested information.
EICB RAI ML102910002 Item No. 9 TVA Letter dated 6/18/10
Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad49E5C.docx Open Items to be Resolved for SER Approval No.
SE Sec.
FSAR Sec.
Response
Acceptable Y/N Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments (1) RG 1.29 - September 1978 vs. March 2007 (2) RG 1.53 - June 1973 vs. November 2003 (a) IEEE 379-1994 vs. -2000 (3) RG 1.75 - September 1975 vs. February 2005 (a) IEEE 384-1992 vs. -1992 (4) RG 1.100 - June 1988 vs. September 2009 (a) IEEE 344-1987 vs. -2004 (5) RG 1.152 - January 1996 vs. January 2006 (a) IEEE 7-4.33.2-1993 vs. -2003 (6) RG 1.168 - September 1997 vs. February 2004 (a) IEEE 1012-1986 vs. -1998 (b) IEEE 1028-1988 vs. -1997 (7) IEEE 279-1991 vs. 603-1991 (8) IEEE 323-1983 vs. -1974 (RG 1.89 Rev. 1 June 1984 endorses 323-1974)
However, LIC-110, "Watts Bar Unit 2 License Application Review,"
states: "Design features and administrative programs that are unique to Unit 2 should then be reviewed in accordance with the current staff positions." Please identify all differences between the versions referenced and the current staff positions. Please provide a justification for the acceptability PAMS with respect to these differences.
issued the approved SER. The WBN Unit 2 Common Q PAMS is designed in accordance with the approved Common Q topical report and approved SER and the codes and standards on which the SER was based. Since the current versions referenced are not applicable to WBN Unit 2, there is no basis for a comparison review.
Bechtel to develop a matrix and work with Westinghouse to provide justification.
PAMS):
(a) Common Q platform components - Common Q TR (b) Application Development Processes - Common Q SPM (c) Application Specific - current regulatory criteria The Common Q Topical Report and associated appendices primarily addressed (a) and (b).
The Common Q SER states:
Appendix 1, Post Accident Monitoring Systems, provides the functional requirements and conceptual design approach for upgrading an existing PAMS based on Common Q components (page 58, Section 4.4.1.1, Description)On the basis of the above review, the staff concludes that Appendix 1 does not contain sufficient information to establish the generic acceptability of the proposed PAMS design (page 56, Section 4.4.1.3, PAMS Evaluation)
The NRC did not approve the proposed PAMS design.
Section 6, References, and Section 7, Codes and Standards Applicable to the Common Q PAMS, of the PAMS Licensing Technical Report contain items that are not the current regulatory criteria.
Please provide an explanation of how the WBN2 PAMS conforms with the application specific regulatory criteria applicable to the WBN2 PAMS design. For example IEEE Std. 603-1991 Clause 5.6.3, Independence Between Safety Systems and Other Systems, and Clause 6.3, Interaction Between the Sense and Command Features and Other Systems, contain application specific requirements that must be addressed by a PAMS system.
Awaiting TVA Response.
Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad49E5C.docx Open Items to be Resolved for SER Approval No.
SE Sec.
FSAR Sec.
Response
Acceptable Y/N Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments 086 7.5.2 7.5.1 EICB (Carte) 5/6/2010 The PAMS Licensing Technical Report (WNA-LI-00058-WBT Rev.
0, Dated April 2010), in Section 6, lists references applicable to the Common Q PAMS. This list contains references to old revisions of several regulatory documents, for example:
(1) DI&C-ISG04 - Rev. 0 (ML072540138) vs. Rev. 1 (ML083310185)
However, LIC-110, "Watts Bar Unit 2 License Application Review,"
states: "Design features and administrative programs that are unique to Unit 2 should then be reviewed in accordance with the current staff positions." Please identify all differences between the versions referenced and the current staff positions. Please provide a justification for the acceptability PAMS with respect to these differences.
Responder: WEC Date: 5/24/10 The regulatory documents listed in the Common Q PAMS Licensing Technical Report are the documents that the Common Q platform was licensed to when the NRC approved the original topical report and issued the approved SER. The WBN Unit 2 Common Q PAMS is designed in accordance with the approved Common Q topical report and approved SER and the regulatory documents on which the SER was based. Since the current versions referenced are not applicable to WBN Unit 2, there is no basis for a comparison review.
Rev 0 of the Licensing Technical Report references Rev. 1 of ISG4
- 4.
N Open TVA to address with item OI
- 81.
Open-TVA/WEC Due 12/22/10 EICB RAI ML102910002 Item No. 14 TVA Letter dated 6/18/10