Text

DAR-ME-11-4-NP, Qualification Summary Report for the Ex-Vessel Portion of the Wincise In-Core Instrumentation Thimble Assembly (Iita) for Watts Bar Unit 2.
	ML11287A253
Person / Time
Site:	Watts Bar
Issue date:	09/30/2011
From:	; Westinghouse
To:	; Office of Nuclear Reactor Regulation
References
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Attachment 17 Non-proprietary Westinghouse Electric Company DAR-ME-I P, Revision 0, "Qualification Summary Report for the Ex-Vessel Portion of the WINCISE In-Core Instrumentation Thimble Assembly (IITA) for Watts Bar Unit 2."

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F-3.5.12-1 Rev. 0 WESTINGHOUSE NON-PROPRIETARY CLASS 3

Westinghouse RECORD OF CHANGES Document Number: DAR-ME-11-4-NP Revision No.: 0

Title:

Qualification Summary Report for the Ex-Vessel Portion of the WINCISE In-Core Instrumentation Thimble Assembly (IITA) for Watts Bar Unit 2 CHANGE PARAGRAPH NUMBER NUMBER CHANGE DESCRIPTION AND REASON 0 All, Initial Issue DAR-ME-1 1-4-NP Revision 0 Page 2 of 27

WESTINGHOUSE NON-PROPRIETARY CLASS 3 TABLE OF CONTENTS T itle Pa g e ................................................................................................................................ 1 Record of Revisions ............................................................................................................ 2 Table of Contents ............................................................................................................ 3 List of T a b le s ........................................................................................................................... 3 List of F ig u re s .......................................................................................................................... 3 List of Appendices ................................................................................................................. 4 List of Acronym s ............................................................................................................. 5 1.0 - S c o p e ............................................................................................................................ 6 2.0 - Purpose .......................................................................................................................... 6 3.0 - References ..................................................................................................................... 8 4.0 - Description ............................................................................................................. 9 5.0 - Q ualification Testing ............................................................................................... 10 6.0 - Applicability of the Qualification Test Hardware to the Watts Bar Unit 2 Hardware ........................................... :......................................................... 24 7.0 - Conclusions ................................................................................................................. 24 LIST OF TABLES 1 - IITA & Multipin Connector Hardware Com parison .................................................... 25 2 - Selected Temperature Values from the LOCA/MSLB Test of Reference 3.11 ........... 26 3 - Selected Temperature Values from the LOCA/MSLB Test of Reference 3.1 ............. 27 LIST OF FIGURES 1 - Ex-Vessel Portion of the W INCISE IITA ........................................................................ 7 2 - Ex-vessel Portion of the IITA OBE and SSE Profile Comparison ............................... 15 3 - Ex-vessel Portion of the IITA LOCA Profile Comparison - Pressure Profile ............... 17 4 - ERD Multipin Electrical Connector LOCA Profile Comparison - Pressure Profile .......... 19 5 - Ex-vessel Portion of the IITA LOCA Profile Comparison - Temperature Profile ...... 20 6 - ERD Multipin Electrical Connector LOCA Profile Comparison - Temperature Profile .... 22 DAR-ME-1 1-4-NP Revision 0 Page 3 of 27

WESTINGHOUSE NON-PROPRIETARY CLASS 3 LIST OF APPENDICES Appendix Description A Summary of Watts Bar Environmental Qualification Parameters from Reference 3.10. (2 total pages)

B Westinghouse (ABB CE) Letter No. CWE-84-0223, "CECo P.O.

254150/254151," "Byron/Braidwood HJTC/CETC M.I. Cable Connector Beta Shielding," Dated November 19, 1984, from R. B. Granstand (ABB CENP) to Hamid Heidarisafa (S&L). (3 total pages)

C TVA Letter Number Reference WBT-TVA-0125-Revised, Dated November 25, 2008, Contract Work Authorization Number: WEST-WBT-2008-005, "Response to WINCISE - Cable Critical Technical Input." (14 total pages)

D TVA Letter Number Reference WBT-TVA-1 887, Dated August 2, 2011, Contract Work Authorization Number: WEST-WBT-2008-005, "Response to WINCISE IITA Connector EQ Report. (3 total pages)

E Development of Enveloping OBE/SSE Profiles Provided in Reference 3.10.

(7 total pages)

DAR-ME-1 1-4-NP Revision 0 Page 4 of 27

WESTINGHOUSE NON-PROPRIETARY CLASS 3 LIST OF SELECTED ACRONYMS Acronym Definition CET Core Exit Thermocouple ERD Electronic Resources Division EQ Environmental Qualification IITA Incore Instrumentation Thimble Assemblies MI Mineral Insulated OBE Operating Basis Earthquake RRS Required Response Spectra SSE Safe Shutdown Earthquake WINCISE Westinghouse Incore Information Surveillance and Engineering System DAR-ME-1 1-4-NP Revision 0 Page 5 of 27

WESTINGHOUSE NON-PROPRIETARY CLASS 3 1.0 SCOPE This report is an analysis of the environmental and seismic qualification in accordance with IEEE 323-1974 and IEEE 344-1975 of the Westinghouse Incore Information Surveillance and Engineering System (WINCISE) ex-vessel portion of the Incore Instrumentation Thimble Assemblies (IITA) and Electronic Resources Division (ERD) multipin electrical connector for Watts Bar Unit 2 based upon the qualification testing presented in References 3.1, 3.3, 3.9, and 3.11 and as supplemented by References 3.5, 3.6, 3.8, and 3.12. The ex-vessel portion of the IITA is defined as the part of the IITA between the Swagelok Nut and ERD multipin electrical connector in Reference 3.2. The method of hardware qualification is similarity analysis.

The basis for the Watts Bar Unit 2 site specific environmental and seismic qualification parameters are Reference 3.10 and 3.13.

The IITA shall maintain a [ ]a,c environmental qualification (EQ) life (Reference 3.2) after initial installation and will be located [ ]ac.

The IITA is [

Ia,c This report is prepared in conjunction with Tennessee Valley Authority (TVA) Work Authorization 65717.

a,cx This report is limited to the qualification of the ex-vessel portion of the IITA. The qualification of the pressure boundary portion of the IITA is presented in Reference 3.14.

The ERD and Whittaker are the same multipin electrical connector supplier.

Figure 1 is a schematic of the supplied hardware.

2.0 PURPOSE This report is based on DAR-ME-1 1-4, Rev. 0, "Qualification Summary Report for the Ex-Vessel Portion of the WINCISE In-Core Instrumentation Thimble Assembly (IITA) for Watts Bar Unit 2." Only minor editorial and formatting changes were made. It was created to submit to the Nuclear Regulatory Commission for the Watts Bar Nuclear Unit 2 NSSS Completion Project.

This report provides the environmental and seismic qualification summary for the Watts Bar Unit 2 ex-vessel portion of the IITA with ERD multipin electrical connector (References 3.1 and 3.11), meeting the requirements of IEEE-323-1974 and IEEE 344-1975 based on the referenced qualification tests.

In addition, this report provides a description of Watts Bar Unit 2 WINCISE IITA and ERD multipin electrical connector as well as a comparison of the qualification test results with respect to the specified Watts Bar Unit 2 requirements provided in Reference 3.10 and 3.13.

DAR-ME-1 1-4-NP Revision 0 Page 6 of 27

WESTINGHOUSE NON-PROPRIETARY CLASS 3 a,c Figure 1 Ex-Vessel Portion of the WINCISE IITA Note: Reference 3.2 DAR-ME-1 1-4-NP Revision 0 Page 7 of 27

WESTINGHOUSE NON-PROPRIETARY CLASS 3

3.0 REFERENCES

3.1 Westinghouse (ABB CE) Report Number CE-NPSD-240-P, "Summary Report: Class 1E Qualification Test of the Incore Instrument (Core Exit Thermocouple Portion) and Mineral Insulated Cable Assembly," Dated June 1983.

3.2 Westinghouse Drawing Number. 6657E27, Revision 5, "OPARSSELTM In-Core Instrumentation Thimble Assembly."

3.3 Westinghouse (ABB CE) Report Number CE-NPSD-275-P, Supplement 2-P, "Qualification Summary Report for the Single Glass Bead Seal Multipin Connector Family Supplied by ERD for Combustion Engineering," Dated September 1988. (TVA Reference Number T25060314157) 3.4 Westinghouse Drawing Number 1552E77, Revision 8, "Watts Bar Unit 1 & 2 Reactor Vessel Level Inst. Sys. Seal Table Connection & Piping."

3.5 Westinghouse Document Number CN-ME-1 1-2, Revision 0, "Aging Calculations for the Watts Bar Unit 2 Incore Instrumentation Thimble Assembly Upgrade."

3.6 Westinghouse Document Number CN-ME-1 1-1, Revision 0, "Evaluation of the Ex-Vessel Portion of the In-core Instrumentation Thimble Assemblies for Watts Bar Unit 2."

3.7 Westinghouse Drawing No. E-WBN2-155-001, Revision 01, "WINCISE System Layout Drawing." (TVA Reference Number E-WBN2-155-01) 3.8 Westinghouse (ABB CE) Letter No. CWE-84-0223, "CECo P.O. 254150/254151,"

"Byron/Braidwood HJTC/CETC M.I. Cable Connector Beta Shielding," Dated November 19, 1984, from R. B. Granstand (ABB CENP) to Hamid Heidarisafa (S&L).

(This Document is Appendix B).

3.9 NTS Test Report Number 60353-94N, "Test Report for Mechanical Cycling & LOCA Testing of One (1) ERD Multipin Connector for Commonwealth Edison Company," Issue Date 1/26/94. (TVA Reference Number T25060314162) 3.10 Watts Bar Letter Number WBT-TVA-0125 - Revised, "Response to WINCISE - Cable Critical Technical Input," Dated November 25, 2008, CWA Number WEST-WBT-2008-005.

(This Document is Appendix C) 3.11 Westinghouse (ABB CE) Report Number CE-NPSD-275-P, "Summary Report: Class 1E Qualification Test of the Electronic Resources Division (ERD) Electrical Connectors and Mineral Insulated Cable," Dated November 1984. (TVA Reference Number T25060314157) 3.12 Westinghouse Document Number CN-ME-09-5, Revision 0, "Aging Calculations for the Watts Bar Unit 2 WINCISE Cable & Connector Upgrade."

3.13 Westinghouse Document Number LTR-CRA-11-60, "Update to Final Watts Bar Unit 2 Completion Project LOCA Long-Term Mass and Energy Releases and Containment Equipment Qualification Data."

DAR-ME-1 1-4-NP Revision 0 Page 8 of 27

WESTINGHOUSE NON-PROPRIETARY CLASS 3 3.14 Westinghouse Document, LTR-SEE-111-1 1-82, "Qualification of Standard Bore Maintenance Fittings and Standard Bore RVLIS Maintenance Fittings for the Watts Bar Unit 2 Seal Table."

3.15 Westinghouse (ABB CE) Document, CE NPSD-968-P, "Qualification Summary Report:

Qualification of Potting Compounds for use in Mineral Insulated Cables," Dated December 1994. (TVA Reference Number T25060314160) 3.16 Watts Bar Letter Number WBT-TVA-1 887, "Response to WINCISE IITA Connector EQ Report," Dated August 2, 2011, CWA Number WEST-WBT-2008-005. (This Document is Appendix D)

4.0 DESCRIPTION

4.1 IITA DESCRIPTION The IITA consists of five vanadium detectors to monitor neutron flux and a Type K thermocouple to monitor core exit fluid temperature. The thermocouple and detectors

[

a,c The IITA carries both safety related core exit temperature signal and non-safety related vanadium detector signals. The core exit thermocouple is considered to be a Class 1E component.

The IITA contains two portions, an in-vessel and ex-vessel portion. The in-vessel portion of the IITA consists of self-power vanadium detectors and thermocouple. The ex-vessel portion of the IITA is considered to be the hermetically sealed portion of the assembly which extends from the Swagelok assembly to the weldable ERD multipin electrical connector.

See Reference 3.7 for a schematic of the in-containment WINCISE cable system.

DAR-ME-1 1-4-NP Revision 0 Page 9 of 27

WESTINGHOUSE NON-PROPRIETARY CLASS 3 5.0 QUALIFICATION TESTING 5.1 IITA WITH ERD MULTIPIN ELECTRICAL CONNECTOR The Westinghouse IITA scope includes an IITA and ERD multipin electrical connector that have been qualified to IEEE Standards 323-1974 and 344-1975 including NUREG 0588, Rev. 1. The method of qualification for this report is similarity analysis.

Table 1 shows a similarity and part number matrix of the qualification and supplied hardware.

a,c This section addresses only the ex-vessel portion of the IITA with ERD multipin electrical connector of the Scope of Supply.

The following sections present a comparison of the results of the Qualification Test Program with Watts Bar Unit 2 parameters. The tested ex-vessel portion of the IITA in Reference 3.1 and ERD multipin electrical connector in Reference 3.11 both fulfill the electrical operability acceptance criteria throughout all phases of testing.

The specific Watts Bar Unit 2 environmental parameters/inputs selected for this report were taken from Reference 3.10, 3.13, and are summarized in Appendix A.

5.1.1 NORMAL OPERATING ENVIRONMENT CONDITIONS 5.1.1.1 Thermal Aging Conditions The Watts Bar Unit 2 normal operating service temperature

]a,c in Reference 3.10.

Ex-Vessel Portion of the IITA The qualification test hardware of Reference 3.1 specifies a service temperature of a,c

]ac Reference 3.5. This is a Watts Bar Unit 2 specific calculation that demonstrates [

Ia,c The thermal aging program of Reference 3.1 exceeds the Watts Bar Unit 2 normal operating temperature of [ ]a,c as specified in Reference 3.10 for the required

[ ]ac DAR-ME-1 1-4-NP Revision 0 . Page 10of27

WESTINGHOUSE NON-PROPRIETARY CLASS 3 The age limiting material for the thermal aging[

]a,c as provided in Reference 3.5.

There are no construction materials that are subject to failure at the []a,c temperature limit.

ERD Multipin ElectricalConnector The qualification test hardware of Reference 3.11 specifies a continuous service

]a,c. To meet these conditions, the

[ ]a,cx The age limiting material for the thermal aging

]a,c.

There are no construction materials that are subject to failure at the [a temperature limit.

The thermal aging program for the multipin connector of Reference 3.11 exceeds the IITA requirement of [ ]2,c at Watts Bar Unit 2 under normal operation service with [ ]ac specified in Reference 3.10.

5.1.1.2 Relative Pressure - Normal Conditions The Watts Bar Unit 2 normal operating relative pressure in Iax as specified in Reference 3.10.

The qualification hardware test program of Reference 3.1 (ex-vessel portion of the IITA) and Reference 3.11 (ERD multipin electrical connector) ac.

The test program envelopes the relative pressure requirements of Reference 3.10.

5.1.1.3 Relative Humidity - Normal Conditions The Watts Bar Unit 2 normal operating relative humidity in

]a'c as specified in Reference 3.10.

The qualification hardware test program of Reference 3.1 (ex-vessel portion of the IITA) and Reference 3.11 (ERD multipin electrical connector) [

rc.

The test program envelopes the Watts Bar Unit 2 requirements of Reference 3.10.

5.1.1.4 Radiation Aging - Normal Conditions The Watts Bar Unit 2 normal operating radiation aging in

] ,c as specified in Reference 3.10. The IITA service life is

[ ]~ac DAR-ME-1 1-4-NP Revision 0 Page 11 of 27

WESTINGHOUSE NON-PROPRIETARY CLASS 3 Ex-Vessel Portion of the IITA The qualification test hardware of Reference 3.1 was exposed

]a,c. The calculated dose based on the dosimetry was ac The radiation aging program of Reference 3.1 envelopes the radiation aging requirements of Reference 3.10.

ERD Multipin Electrical Connector The qualification test hardware of Reference 3.11 was exposed

]a,c. This dose included a 10% margin to account for the synergistic effects of simultaneous irradiation and thermal aging.

The radiation aging program of Reference 3.11 envelopes the radiation aging requirements of Reference 3.10.

5.1.1.5 Mechanical Aging I ]a,c for Watts Bar Unit 2 specified in Reference 3.10.

A subsequent test was done in 1994 to further verify the mechanical integrity of the ERD multipin electrical connector (Reference 3.9). This test included

]a,c. The results showed that the multipin connector, [ a,c maintained its integrity during and after this mechanical/LOCA test.

5.1.2 ABNORMAL CONDITIONS 5.1.2.1 Thermal Aging Conditions The Watts Bar Unit 2 abnormal operating service temperature in

]ac in Reference 3.10. This abnormal condition will occur

[ ]a,c Ex-Vessel Portionof the IITA The qualification test hardware of Reference 3.1 specifies a service temperature of ac DAR-ME-1 1-4-NP Revision 0 Page 12 of 27

WESTINGHOUSE NON-PROPRIETARY CLASS 3 a,c The thermal aging program of Reference 3.1 exceeds the Watts Bar Unit 2 abnormal operating temperature of [ ]a,c as specified in Reference 3.10.

The age limiting material for thermal aging is

]a,c as provided in Reference 3.5.

There are no construction materials subject to failure within the [a,c temperature limit.

ERD Multipin ElectricalConnector The qualification test hardware of Reference 3.11 specifies a

]ac. To meet these conditions, the

[ ]a 'c.

The age limiting material for the thermal aging

]'c as provided in Reference 3.3.

There are no construction materials that are subject to failure at the [a,c temperature limit.

The normal operation thermal aging program of Reference 3.11 exceeds the Watts Bar Unit 2 abnormal operation service maximum temperature of [ ]ac specified in Reference 3.10.

5.1.2.2 Relative Pressure - Abnormal Conditions The Watts Bar Unit 2 abnormal operating relative pressure in Iac as specified in Reference 3.10.

The qualification hardware test program of Reference 3.1 (ex-vessel portion of the IITA)

[ and Reference 3.11 (ERD multipin electrical connector) both specify ]~

5.1.2.3 Relative Humidity - Abnormal Conditions The Watts Bar Unit 2 abnormal operating relative humidity in

]a,c as specified in Reference 3.10.

The qualification hardware test program of Reference 3.1 (ex-vessel portion of the IITA)

[ and Reference 3.11 (ERD multipin electrical connector) are both ]~

specify a The test program satisfies the Watts Bar Unit 2 relative humidity requirements of Reference 3.10.

DAR-ME-1 1-4-NP Revision 0 Page 13 of 27

WESTINGHOUSE NON-PROPRIETARY CLASS 3 5.1.3 DYNAMIC/SEISMIC TESTING The Watts Bar Unit 2 Required Response Spectra (RRS) is provided in Reference 3.10.

Ex-Vessel Portion of the IITA The seismic testing on the ex-vessel portion of the IITA

]a,c the IITA meets the Watts Bar seismic requirement.

[

a,c The ex-vessel portion of the IITA satisfies the Watts Bar Unit 2 seismic requirement of Reference 3.10.

ERD Multipin ElectricalConnector

[

a,c The seismic testing performed in Reference 3.11 exceeds the Watts Bar Unit 2 requirements specified in Reference 3.10.

5.1.4 ACCIDENT CONDITIONS 5.1.4.1 Radiation Aging - Accident Conditions Accident Dose - The Watts Bar Unit 2 accident dose in [a,c specified in Reference 3.10 [ ],c.

Gamma Component- The required accident dose of Reference 3.10 a,c Beta Component- The required accident dose of Reference 3.10 includes a

[

]a,c DAR-ME-1 1-4-NP Revision 0 Page 14 of 27

WESTINGHOUSE NON-PROPRIETARY CLASS 3 a,c Figure 2 Ex-vessel Portion of the IITA OBE and SSE Profile Comparison DAR-ME-1 1-4-NP Revision 0 Page 15 of 27

WESTINGHOUSE NON-PROPRIETARY CLASS 3 Ex-Vessel Portionof the IITA The qualification test hardware of Reference 3.1 was subjected a.c The total required accident dose of [ ]a~c is enveloped by the I]B.c Reference 3.1. The accident radiation dose of Reference 3.1 envelopes the requirements for accident conditions for Watts Bar Unit 2 as specified in Reference 3.10.

ERD Multipin Electrical Connector The qualification test hardware of Reference 3.11 was subjected

]a,c The total required accident dose of [ ]ax' is enveloped by the I]a.c Reference 3.11. The accident radiation dose of Reference 3.11 envelopes the requirements for accident conditions for Watts Bar Unit 2 as specified in Reference 3.10.

5.1.4.2 Pressure Profile - Accident Conditions Watts Bar Unit 2 required peak pressure in

]axc in Reference 3.13.

Ex-Vessel Portion of the IITA In Figure 3, the qualification test pressure profile of Reference 3.1, Figure 12 is superimposed on the Watts Bar Unit 2 requirements.

The pressure profile of the hardware tested in Reference 3.1 Iaxc The LOCA pressure profile of the hardware tested in Reference 3.1 envelopes the Watts Bar Unit 2 LOCA/MSLB pressure profile requirements of Reference 3.10 and 3.13.

DAR-ME-1 1-4-NP Revision 0 Page 16 of 27

WESTINGHOUSE NON-PROPRIETARY CLASS 3 a,c Figure 3 Ex-vessel Portion of the IITA LOCA Profile Comparison - Pressure Profile DAR-ME-1 1-4-NP Revision 0 Page 17 of 27

WESTINGHOUSE NON-PROPRIETARY CLASS 3 ERD Multipin ElectricalConnector In Figure 4, the qualification test pressure profile of Reference 3.11, Figure 21 is superimposed on the Watts Bar Unit 2 requirements.

The pressure profile of the hardware tested in Reference 3.11 envelopes both Watts Bar Unit 2 LOCA pressure profile requirements in Reference 3.10 and 3.13

]a c This is acceptable based on the excess test pressure during the remainder of the test period.

The LOCA pressure profile of the hardware tested in Reference 3.11 envelopes the Watts Bar Unit 2 LOCAIMSLB pressure profile requirements of Reference 3.10 and 3.13.

5.1.4.3 Temperature Profile - Accident Conditions (LOCA/MSLB)

Watts Bar Unit 2 required temperature profile in [ ] in Reference 3.10 and 3.13.

Ex- Vessel Portion of the IITA In Figure 5, the qualification test temperature profile of Reference 3.1, Figure 12 is superimposed on the Watts Bar Unit 2 requirements.

The qualification test temperature profile of Reference 3.1 envelopes Watts Bar Unit 2 requirements of Reference 3.10 and 3.13 a,c DAR-ME-1 1-4-NP Revision 0 Page 18 of 27

WESTINGHOUSE NON-PROPRIETARY CLASS 3 a,c Figure 4 ERD Multipin Electrical ConnectorLOCA Profile Comparison- PressureProfile DAR-ME-1 1-4-NP Revision 0 Page 19 of 27

WESTINGHOUSE NON-PROPRIETARY CLASS 3 a,c Figure 5 Ex-vessel Portion of the IITA LOCA Profile Comparison - Temperature Profile

The WEC profile is also shown in Table 3.

DAR-ME-1 1-4-NP Revision 0 Page 20 of 27

WESTINGHOUSE NON-PROPRIETARY CLASS 3 The LOCA/MSLB temperature profile of the hardware tested in Reference 3.1 envelopes the Watts Bar Unit 2 LOCA/MSLB temperature profile requirements of Reference 3.10 and 3.13.

ERD Multipin ElectricalConnector In Figure 6, the qualification test temperature profile of Reference 3.11, Figure 21 is superimposed on the Watts Bar Unit 2 requirements.

The qualification test temperature profile of Reference 3.11 envelopes Watts Bar Unit 2 requirements

]a,c.

The LOCA/MSLB temperature profile of the hardware tested in Reference 3.11 envelopes the Watts Bar Unit 2 LOCA/MSLB temperature profile requirements of Reference 3.10 and 3.13.

5.1.4.4 Humidity - Accident Conditions The Watts Bar Unit 2 relative humidity requirement in Ia,c as specified in Reference 3.10.

The environmental test hardware of Reference 3.1 (ex-vessel portion of the IITA) and Reference 3.11 (ERD multipin electrical connector) [

a,c 5.1.4.5 Chemical SDrav - Accident Conditions The Watts Bar Unit 2 chemical spray requirement ]a,c is specified in Reference 3.10 in [ ]ac.

ERD Multipin ElectricalConnector The qualification test chemical spray of Reference 3.11 is comprised [

]a,c This chemical spray envelope the requirements of Reference 3.10.

DAR-ME-1 1-4-NP Revision 0 Page 21 of 27

WESTINGHOUSE NON-PROPRIETARY CLASS 3 a,c Figure 6 ERD Multipin Electrical Connector LOCA Profile Comparison -

Temperature Profile

The WEC profile is also shown in Table 2.

DAR-ME-1 1-4-NP Revision 0 Page 22 of 27

WESTINGHOUSE NON-PROPRIETARY CLASS 3 Ex-Vessel Portion of the IITA The qualification test chemical spray of Reference 3.1 is comprised a,c The qualification test in Reference 3.1 has

]a,c specified in Reference 3.10. Therefore the chemical spray envelopes the requirements of Reference 3.10.

5.1.4.6 Submer-gence The Watts Bar Unit 2 submergence requirement elevations specified in Reference 3.10

[

]a,c The supplied hardware and associated installation satisfies the submergence requirement of Reference 3.10.

5.2 USE OF [ ]axC INTHE EX-VESSEL PORTION OF THE IITA Subsequent to the completion of the qualification hardware test program in Reference 3.1, [

I,c DAR-ME-1 1-4-NP Revision 0 Page 23 of 27

WESTINGHOUSE NON-PROPRIETARY CLASS 3 The qualification basis for the in-containment Class 1E [

]2,c is provided in Reference 3.15 and a summary of selected Reference 3.15 is listed below:

a. Thermal Aging Reference 3.15, Section 5.6.2 - The qualification test hardware with

]ar- exceeds the Watts Bar 2 both the

[a,c abnormal operating condition temperatures as specified in Reference 3.10 for the [ ]ac for an IITA.

b. Radiation Aging Reference 3.15, Section 5.7 - The qualification test hardware with the I

a,c The test program radiation exposure of [ ]a,c exceeds the Watts Bar 2 requirement of [ a as specified in Reference 3.10.

6.0 APPLICABILITY OF THE QUALIFICATION TEST HARDWARE TO THE WATTS BAR UNIT 2 HARDWARE The IITA and the ERD multipin electrical connector utilized in qualification tests, are similar to that supplied for Watts Bar Unit 2. Table 1 provides a description of Watts Bar Unit 2 hardware and a comparison with the tested hardware. The qualification test hardware was fabricated to the same material specifications, manufacturing techniques, and quality control standards as the hardware for Watts Bar Unit 2.

The Class 1E equipment provided is the ex-vessel portion of the IITA. The ex-vessel portion of the IITA is defined as the part between the Swagelok assembly up to and including the multipin electrical connector assembly.

The measuring and test equipment used during the environmental test programs was in current calibration at the time of use. Supporting documentation is available for review at Westinghouse facilities.

Table 1 shows a summary of the supplied hardware.

7.0 CONCLUSION

S As shown in References 3.1, 3.3, 3.9, 3.11 and supplemented by References 3.5, 3.6, 3.8, and 3.12, the qualification testing meets or exceeds the Watts Bar Unit 2 requirements specified in Reference 3.10 and 3.13. The Watts Bar Unit 2 ex-vessel portion of the IITA with ERD multipin electrical connector is qualified for Class 1 E application in accordance with the methodology and guidance of IEEE 323-1974 and IEEE 344-1975.

DAR-ME-1 1-4-NP Revision 0 Page 24 of 27

WESTINGHOUSE NON-PROPRIETARY CLASS 3 Table 1 IITA & Multipin Connector Hardware Comparison Watts Bar 2 Hardware Qualification Test Hardware Description PIN PIN Notes IITA [ ]ac [ aIc, 1, 2 (Reference 3.2) (Reference 3.1)

Multipin [ a,c, ]a.c, 3, 4 Connector (Reference 3.2) (Reference 3.11)

NOTES

1. The following differences exist between the supplied and tested IITA of Reference 3.1:

[

]a,c

2. The following difference exists between the supplied and tested IITA hardware of Reference 3.1 but are not part of the qualification scope:

[

Ja,c The above differences do not compromise the qualification of the supplied hardware.

3. The tested multipin connector uses [

]a,c in Reference 3.2.

4. The following differences exist between the supplied and tested multipin connector of References 3.1, 3.2 and 3.11:

[

]a,c DAR-ME-1 1-4-NP Revision 0 Page 25 of 27

WESTINGHOUSE NON-PROPRIETARY CLASS 3 Table 2 Selected Temperature Values from the LOCA/MSLB Test of Reference 3.11 (ERD Multipin Electrical Connector) n 0,

DAR-ME-1 1-4-NP Revision 0 Page 26 of 27

WESTINGHOUSE NON-PROPRIETARY CLASS 3 Table 3 Selected Temperature Values from the LOCAIMSLB Test of Reference 3.1 (Ex-vessel Portion of the IITA) a,c m -I

+

DAR-ME-1 1-4-NP Revision 0 Page 27 of 27

WESTINGHOUSE NON-PROPRIETARY CLASS 3 Appendix A Summary of Watts Bar 2 Environmental Qualification Parameters in [ I.,c from Reference 3.10 Normal Operatina Conditions a,c Parameter I Value Source t

t i Abnormal Operatinc Conditions a,(

Parameter Value Source I t DAR-ME-1 1-4-NP Revision 0 Appendix Al of A2

WESTINGHOUSE NON-PROPRIETARY CLASS 3 Accident Conditions a,c Parameter Value Source DAR-ME-1 1-4-NP Revision 0 Appendix A2 of A2

WESTINGHOUSE NON-PROPRIETARY CLASS 3 Appendix B Westinghouse (ABB CE) Letter No. CWE-84-0223, "CECo P.O. 254150/254151,"

"Byron/Braidwood HJTC/CETC M.l. Cable Connector Beta Shielding," Dated November 19, 1984, from R. B. Granstrand (ABB CENP) to Hamid Heidarisafa (S&L).

DAR-ME-1 1-4-NP Revision O-Draft Appendix B1 of B3

WESTINGHOUSE NON-PROPRIETARY CLASS 3 a,c DAR-ME-1 1-4-NP Revision O-Draft Appendix B2 of B3

WESTINGHOUSE NON-PROPRIETARY CLASS 3 a,c 7

DAR-ME-1 1-4-NP Revision O-Draft Appendix B3 of B3

WESTINGHOUSE NON-PROPRIETARY CLASS 3 Appendix C TVA Letter Number Reference WBT-TVA-0125-Revised, Dated November 25, 2008 Contract Work Authorization Number: WEST-WBT-2008-005 Response to WINCISE - Cable Critical Technical Input DAR-ME-1 1-4-NP Revision 0 Appendix C1 of C14

WESTINGHOUSE NON-PROPRIETARY CLASS 3 a,c DAR-ME-1 1-4-NP Revision 0 Appendix C2 of C14

WESTINGHOUSE NON-PROPRIETARY CLASS 3 a,c DAR-M E-1 1-4-N P Revision 0 Appendix C3 of C14

WESTINGHOUSE NON-PROPRIETARY CLASS 3 a,c DAR-ME-1 1-4-NP Revision 0 Appendix C4 of C14

WESTINGHOUSE NON-PROPRIETARY CLASS 3 a,c DAR-ME-1 1-4-NP Revision 0 Appendix C5 of C14

WESTINGHOUSE NON-PROPRIETARY CLASS 3 a,c

'I DAR-ME-1 1-4-NP Revision 0 Appendix C6 of C14

WESTINGHOUSE NON-PROPRIETARY CLASS 3 a,c DAR-ME-1 1-4-NP Revision 0 Appendix C7 of C14

WESTINGHOUSE NON-PROPRIETARY CLASS 3 a,c DAR-ME-1 1-4-NP Revision 0 Appendix C8 of C14

WESTINGHOUSE NON-PROPRIETARY CLASS 3 a,c DAR-ME-1 1-4-NP Revision 0 Appendix C9 of C14

WESTINGHOUSE NON-PROPRIETARY CLASS 3 a,c DAR-ME-1 1-4-NP Revision 0 Appendix C10 of C14

WESTINGHOUSE NON-PROPRIETARY CLASS 3 a,c DAR-ME-1 1-4-NP Revision 0 Appendix Cl1 of C14

WESTINGHOUSE NON-PROPRIETARY CLASS 3 a,c DAR-ME-1 1-4-NP Revision 0 Appendix C12 of C14

WESTINGHOUSE NON-PROPRIETARY CLASS 3 a,c DAR-ME-1 1-4-NP Revision 0 Appendix C13 of C14

WESTINGHOUSE NON-PROPRIETARY CLASS 3 a,c DAR-ME-1 1-4-NP Revision 0 Appendix C14 of C14

WESTINGHOUSE NON-PROPRIETARY CLASS 3 Appendix D TVA Letter Number Reference WBT-TVA-1887, Dated August 2, 2011 Contract Work Authorization Number: WEST-WBT-2008-005 Response to WINCISE IITA Connector EQ Report (Reference 3.16)

DAR-ME-1 1-4-NP Revision 0 Appendix Dl of D3

WESTINGHOUSE NON-PROPRIETARY CLASS 3 a,c DAR-ME-1 1-4-NP Revision 0 Appendix D2 of D3

WESTINGHOUSE NON-PROPRIETARY CLASS 3 ac m

DAR-ME-1 1-4-NP Revision 0 Appendix D3 of D3

WESTINGHOUSE NON-PROPRIETARY CLASS 3 Appendix E Development of Enveloping OBE/SSE Profiles Provided in Reference 3.10 (This Appendix has 7 Sheets including this cover sheet)

DAR-ME-1 1-4-NP Revision 0 Appendix El of E7

WESTINGHOUSE NON-PROPRIETARY CLASS 3 a,c DAR-ME-1 1-4-NP Revision 0 Appendix E2 of E7

WESTINGHOUSE NON-PROPRIETARY CLASS 3 a,c DAR-ME-1 1-4-NP Revision 0 Appendix E3 of E7

WESTINGHOUSE NON-PROPRIETARY CLASS 3 a,c DAR-ME-1 1-4-NP Revision 0 Appendix E4 of E7

WESTINGHOUSE NON-PROPRIETARY CLASS 3 a,c DAR-ME-1 1-4-NP Revision 0 Appendix E5 of E7

WESTINGHOUSE NON-PROPRIETARY CLASS 3 a,c DAR-ME-1 1-4-NP Revision 0 Appendix E6 of E7

WESTINGHOUSE NON-PROPRIETARY CLASS 3 a,c DAR-ME-1 1-4-NP Revision 0 Appendix E7 of E7

Attachment 18 Westinghouse Electric Company CAW-1 1-3253 "Application For Withholding Proprietary Information From Public Disclosure, DAR-ME-11-4-P, Rev. 0, Qualification Summary Report for the Ex-Vessel Portion of the WINCISE Incore Instrumentation Thimble Assembly (UTA) for Watts Bar Unit 2 (proprietary).-"

Westinghouse Electric Company Nuclear Services 1000 Westinghouse Drive Cranberry Township, Pennsylvania 16066 USA U.S. Nuclear Regulatory Commission Direct tel: (412) 374-4643 Document Control Desk Direct fax: (724) 720-0754 11555 Rockville Pike e-mail: greshaja@westinghouse.com Rockville, MD 20852 Proj letter: WBT-D-3500 CAW-11-3253 September 23, 2011 APPLICATION FOR WITHHOLDING PROPRIETARY INFORMATION FROM PUBLIC DISCLOSURE

Subject:

DAR-ME-1 1-4-P, Rev. 0, Qualification Summary Report for the Ex-Vessel Portion of the WINCISE Incore Instrumentation Thimble Assembly (IITA) for Watts Bar Unit 2 (Proprietary)

The proprietary information for which withholding is being requested in the above-referenced report is further identified in Affidavit CAW-1 1-3253 signed by the owner of the proprietary information, Westinghouse Electric Company LLC. The affidavit, which accompanies this letter, sets forth the basis on which the information may be withheld from public disclosure by the Commission and addresses with specificity the considerations listed in paragraph (b)(4) of 10 CFR Section 2.390 of the Commission's regulations.

Accordingly, this letter authorizes the utilization of the accompanying affidavit by Tennessee Valley Authority.

Correspondence with respect to the proprietary aspects of the application for withholding or the Westinghouse affidavit should reference this letter, CAW-1 1-3253, and should be addressed to J. A. Gresham, Manager, Regulatory Compliance, Westinghouse Electric Company LLC, Suite 428, 1000 Westinghouse Drive, Cranberry Township, Pennsylvania 16066.

Very truly yours, J. A. Gsham, Manager Regulatory Compliance Enclosures

CAW-1 1-3253 AFFIDAVIT COMMONWEALTH OF PENNSYLVANIA:

ss COUNTY OF BUTLER:

Before me, the undersigned authority, personally appeared J. A. Gresham, who, being by me duly sworn according to law, deposes and says that he is authorized to execute this Affidavit on behalf of Westinghouse Electric Company LLC (Westinghouse), and that the averments of fact set forth in this Affidavit are true and correct to the best of his knowledge, information, and belief:

A. Gresham, Manager Regulatory Compliance Sworn to and subscribed before me this 23th day of September 2011 Notary Public COMMONWEALIH OF PENNSYLVANIA NOTARIAL SEAL' Renee Giampole, Notary Public Penn Township, Westmoreland County My Commission ExpIroe September 25, 2013

2 CAW-1 1-3253 (1) I am Manager, Regulatory Compliance, in Nuclear Services, Westinghouse Electric Company LLC (Westinghouse), and as such, I have been specifically delegated the function of reviewing the proprietary information sought to be withheld from public disclosure in connection with nuclear power plant licensing and rule making proceedings, and am authorized to apply for its withholding on behalf of Westinghouse.

(2) 1 am making this Affidavit in conformance with the provisions of 10 CFR Section 2.390 of the Commission's regulations and in conjunction with the Westinghouse Application for Withholding Proprietary Information from Public Disclosure accompanying this Affidavit.

(3) I have personal knowledge of the criteria and procedures utilized by Westinghouse in designating information as a trade secret, privileged or as confidential commercial or financial information.

(4) Pursuant to the provisions of paragraph (b)(4) of Section 2.390 of the Commission's regulations, the following is furnished for consideration by the Commission in determining whether the information sought to be withheld from public disclosure should be withheld.

(i) The information sought to be withheld from public disclosure is owned and has been held in confidence by Westinghouse.

(ii) The information is of a type customarily held in confidence by Westinghouse and not customarily disclosed to the public. Westinghouse has a rational basis for determining the types of information customarily held in confidence by it and, in that connection, utilizes a system to determine when and whether to hold certain types of information in confidence. The application of that system and the substance of that system constitutes Westinghouse policy and provides the rational basis required.

Under that system, information is held in confidence if it falls in one or more of several types, the release of which might result in the loss of an existing or potential competitive advantage, as follows:

(a) The information reveals the distinguishing aspects of a process (or component,

. structure, tool, method, etc.) where prevention of its use by any of

3 CAW-1 1-3253 Westinghouse's competitors without license from Westinghouse constitutes a competitive economic advantage over other companies.

(b) It consists of supporting data, including test data, relative to a process (or component, structure, tool, method, etc.), the application of which data secures a competitive economic advantage, e.g., by optimization or improved marketability.

(c) Its use by a competitor would reduce his expenditure of resources or improve his competitive position in the design, manufacture, shipment, installation, assurance of quality, or licensing a similar product.

(d) It reveals cost or price information, production capacities, budget levels, or commercial strategies of Westinghouse, its customers or suppliers.

(e) It reveals aspects of past, present, or future Westinghouse or customer funded development plans and programs of potential commercial value to Westinghouse.

(f) It contains patentable ideas, for which patent protection may be desirable.

There are sound policy reasons behind the Westinghouse system which include the following:

(a) The use of such information by Westinghouse gives Westinghouse a competitive advantage over its competitors. It is, therefore, withheld from disclosure to protect the Westinghouse competitive position.

(b) It is information that is marketable in many ways. The extent to which such information is available to competitors diminishes the Westinghouse ability to sell products and services involving the use of the information.

(c) Use by our competitor would put Westinghouse at a competitive disadvantage by reducing his expenditure of resources at our expense.

4 CAW-1 1-3253 (d) Each component of proprietary information pertinent to a particular competitive advantage is potentially as valuable as the total competitive advantage. If competitors acquire components of proprietary information, any one component may be the key to the entire puzzle, thereby depriving Westinghouse of a competitive advantage.

(e) Unrestricted disclosure would jeopardize the position of prominence of Westinghouse in the world market, and thereby give a market advantage to the competition of those countries.

(f) The Westinghouse capacity to invest corporate assets in research and development depends upon the success in obtaining and maintaining a competitive advantage.

(iii) The information is being transmitted to the Commission in confidence and, under the provisions of 10 CFR Section 2.390, it is to be received in confidence by the Commission.

(iv) The information sought to be protected is not available in public sources or available information has not been previously employed in the same original manner or method to the best of our knowledge and belief.

(v) The proprietary information sought to be withheld in this submittal is that which is appropriately marked in DAR-ME-1 1-4-P, Rev. 0, "Qualification Summary Report for the Ex-Vessel Portion of the WINCISE Incore Instrumentation Thimble Assembly (IITA) for Watts Bar Unit 2" (Proprietary), dated September 2011 for submittal to the Commission, being transmitted by Tennessee Valley Authority letter and Application for Withholding Proprietary Information from Public Disclosure, to the Document Control Desk. The proprietary information as submitted by Westinghouse is that associated with the Incore Instrument System (IIS) and may be used only for that purpose.

5 CAW-1 1-3253 This information is part of that which will enable Westinghouse to:

(a) Assist the customer in providing technical licensing information to the NRC that is required for approval of the Watts Bar Nuclear Unit 2 IUS.

Further this information has substantial commercial value as follows:

(a) Westinghouse plans to sell the use of similar information to its customers for the purpose of licensing in-core instrumentation systems.

(b) Its use by a competitor would improve his competitive position in the development and licensing of a similar product.

(c) The information requested to be withheld reveals the distinguishing aspects of a design developed by Westinghouse.

Public disclosure of this proprietary information is likely to cause substantial harm to the competitive position of Westinghouse because it would enhance the ability of competitors to provide similar calculations, analysis and licensing defense services for commercial power reactors without commensurate expenses. Also, public disclosure of the information would enable others to use the information to meet NRC requirements for licensing documentation without purchasing the right to use the information.

The development of the technology described in part by the information is the result of applying the results of many years of experience in an intensive Westinghouse effort and the expenditure of a considerable sum of money.

In order for competitors of Westinghouse to duplicate this information, similar technical programs would have to be performed and a significant manpower effort, having the requisite talent and experience, would have to be expended.

Further the deponent sayeth not.

PROPRIETARY INFORMATION NOTICE Transmitted herewith are proprietary and/or non-proprietary versions of documents furnished to the NRC in connection with requests for generic and/or plant-specific review and approval.

In order to conform to the requirements of 10 CFR 2.390 of the Commission's regulations concerning the protection of proprietary information so submitted to the NRC, the information which is proprietary in the proprietary versions is contained withinbrackets, and where the proprietary information has been deleted in the non-proprietary versions, only the brackets remain (the information that was contained within the brackets in the proprietary versions having been deleted). The justification for claiming the information so designated as proprietary is indicated in both versions by means of lower case letters (a) through (f) located as a superscript immediately following the brackets enclosing each item of information being identified as proprietary or in the margin opposite such information. These lower case letters refer to the types of information Westinghouse customarily holds in confidence identified in Sections (4)(ii)(a) through (4)(ii)(f) of the affidavit accompanying this transmittal pursuant to 10 CFR 2.390(b)(1).

COPYRIGHT NOTICE The reports transmitted herewith each bear a Westinghouse copyright notice. The NRC is permitted to make the number of copies of the information contained in these reports which are necessary for its internal use in connection with generic and plant-specific reviews and approvals as well as the issuance, denial, amendment, transfer, renewal, modification, suspension, revocation, or violation of a license, permit, order, or regulation subject to the requirements of 10 CFR 2.390 regarding restrictions on public disclosure to the extent such information has been identified as proprietary by Westinghouse, copyright protection notwithstanding. With respect to the non-proprietary versions of these reports, the NRC is permitted to make the number of copies beyond those necessary for its internal use which are necessary in order to have one copy available for public viewing in the appropriate docket files in the public document room in Washington, DC and in local public document rooms as may be required by NRC regulations if the number of copies submitted is insufficient for this purpose. Copies made by the NRC must include the copyright notice in all instances and the proprietary notice if the original was identified as proprietary.

Tennessee Valley Authority Letter for Transmittal to the NRC The following paragraphs should be included in your letter to the NRC:

Enclosed are:

1. copies of DAR-ME-1I 1-4-P, Rev. 0, "Qualification Summary Report for the Ex-Vessel Portion of the WINCISE Incore Instrumentation Thimble Assembly (IITA) for Watts Bar Unit 2" (Proprietary)

2. copies of DAR-ME- 11-4-NP, Rev. 0, "Qualification Summary Report for the Ex-Vessel Portion of the WINCISE Incore Instrumentation Thimble Assembly (ITA) for Watts Bar Unit 2" (Non-Proprietary)

Also enclosed is the Westinghouse Application for Withholding Proprietary Information from Public Disclosure CAW-1 1-3253, accompanying Affidavit, Proprietary Information Notice, and Copyright Notice.

As Item 1 contains information proprietary to Westinghouse Electric Company LLC, it is supported by an affidavit signed by Westinghouse, the owner of the information. The affidavit sets forth the basis on which the information may be withheld from public disclosure by the Commission and addresses with specificity the considerations listed in paragraph (b) (4) of Section 2.390 of the Commission's regulations.

Accordingly, it is respectfully requested that the information which is proprietary to Westinghouse be withheld from public disclosure in accordance with 10 CFR Section 2.390 of the Commission's regulations.

Correspondence with respect to the copyright or proprietary aspects of the items listed above or the supporting Westinghouse affidavit should reference CAW-1 1-3253 and should be addressed to J. A. Gresham, Manager, Regulatory Compliance, Westinghouse Electric Company LLC, Suite 428, 1000 Westinghouse Drive, Cranberry Township, Pennsylvania 16066.

ML11287A253