ML19050A439

Nuscale DCA SER-OI Chapter 16 - Technical Specifications

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NuScale Chapter 16
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Code of Federal Regulations

Federal Register)

Criterion 1.Criterion 2.Criterion 3 Criterion 4.

16.4.1.1 LCOs Required by Criterion 1 - Installed instrumentation that is used to detect, and indicate in the control room, a significant abnormal degradation of the reactor coolant pressure boundary.

• 16.4.1.2 LCOs Required by Criterion 2 - A process variable, design feature, or operating restriction that is an initial condition of a design basis accident or transient analysis that either assumes the failure of or presents a challenge to the integrity of a fission product barrier. *

• Axial power distributions are continuously monitored to validate the AO operating window, and actions required by the technical specifications are initiated based on this information.The maximum value of F Q is used to ensure the specified acceptable fuel design limit for fuel centerline melting is not

exceeded.

• 16.4.1.3 LCOs Required by Criterion 3 - A structure, system, or component that is part of the primary success path and which functions or actuates to mitigate a design basis accident or transient that either assumes the failure of or presents a challenge to the integrity of a fission product barrier. **

MPS INSTRUMENTATION FUNCTION1. High Power Range Linear Power

• • ** ******2. High Power Range Positive and Negative Rate

• (not credited)

• (not credited)* (not credited)*not credited***3. High Intermediate Range Log Power Rate

MPS INSTRUMENTATION FUNCTION**With power b4. High Source Range Count Rate

• • 5. High Source Range Log Power Rate

• • 6. High Subcritical Multiplication

• 7. High Pressurizer Pressure

• • • • ********

MPS INSTRUMENTATION FUNCTION**************

MPS INSTRUMENTATION FUNCTION8. Low Pressurizer Pressure

• • • ********

• • • 9. Low Low Pressurizer Pressure

MPS INSTRUMENTATION FUNCTION10. High Pressurizer Level

• • • • • 11. Low Pressurizer Level

• 12. Low Low Pressurizer Level

MPS INSTRUMENTATION FUNCTION*13. High Narrow Range RCS Hot Temperature

• • • (******* (**

• • • • 14. Low RCS Flow

• 15. Low Low RCS Flow

MPS INSTRUMENTATION FUNCTION16. Low Reactor Pressure Vessel (RPV) Riser Level

• 17. High Main Steam Pressure

• • • • • (5% RTP penalty added)**************

MPS INSTRUMENTATION FUNCTION18. Low Main Steam Pressure

• *

• • • • • • 19. Low Low Main Steam Pressure

• • • • 20. High Steam Superheat

• • (not )*(not credited)

MPS INSTRUMENTATION FUNCTION*21. Low Steam Superheat

• • • • 22. High Narrow Range Containment Pressure

MPS INSTRUMENTATION FUNCTION23. High Containment Water Level

• 24. High RCS Pressure - Low Temperature Overpressure Protection (LTOP) *25. Low AC Voltage to Low Voltage AC Electrical Distribution System (ELVS) Battery Chargers *****26. High Under-the-Bioshield Temperature

• ASSOCIATED MPS INSTRUMENTATION FUNCTIONS1.a. High Power Range Linear Power 1 2(a) 3(a) 2.a. High Power Range Positive and Negative Rate 1(b) - - 3.a. High Intermediate Range Log Power Rate 1(c) 2(a) 3(a) 4.a. High Source Range Count Rate 1(d) 2(a) 3(a) 5.a. High Source Range Log Power Rate 1(d) 2(a)3(a)7.a. High Pressurizer Pressure 1 2(a) 3(a) 8.a. Low Pressurizer Pressure 1(g) - - 9.a. Low Low Pressurizer Pressure 1 2(a) - 10.a. High Pressurizer Level 1 2(a) 3(a) 11.a. Low Pressurizer Level 1 2(a) 3(a) 13.a. High Narrow Range RCS Hot Temperature 1 - -

15.a. Low Low RCS Flow 1 2(a) 3(a) 17.a. High Main Steam Pressure 1 2(a) - 18.a. Low Main Steam Pressure 1(b) - - 19.a. Low Low Main Steam Pressure 1 2(a) -

20.a. High Steam Superheat 1 - -

21.a. Low Steam Superheat 1 - -

22.a. High Narrow Range Containment Pressure 1 2(a) 3(a) 25.a. Low AC Voltage to ELVS Battery Chargers 1 2(a) 3(a) 26.a. High Under-the-Bioshield Temperature 12(a)3(a)(a) When capable of CRA withdrawal.(b) With power above the N-2H Interlock.(c) With power below the N-2L Interlock. (d) When Intermediate Range Log Power less than N-1 interlock.

ASSOCIATED MPS INSTRUMENTATION FUNCTIONS(g)With narrow range RCS hot temperature above the T-4 interlock.

• ASSOCIATED MPS INSTRUMENTATION FUNCTION(S) 16.a. Low RPV Riser Level 6 1 2 3 23.a. High Containment Water Level 1 2 3(e) (e) When not COOLED. 7.b. High Pressurizer Pressure 1 2 3(e) 8.b. Low Pressurizer Pressure 1(g) - -

9.b. Low Low Pressurizer Pressure 1 2 -

12.a. Low Low Pressurizer Level 1 2 3(h) 13.b. High Narrow Range RCS Hot Temperature 1 2 3(e) 17.b. High Main Steam Pressure 1 2 3(e) 18.b. Low Main Steam Pressure 1(b) - -

19.b. Low Low Main Steam Pressure 1 2 20.b. High Steam Superheat 1 - - 21.b. Low Steam Superheat 1 - - 22.b. High Narrow Range Containment Pressure 1 2 3(e) 25.b. Low AC Voltage to ELVS Battery Chargers 1 2 3(e) 26.b. High Under-the-Bioshield Temperature 1 2 3 ASSOCIATED MPS INSTRUMENTATION FUNCTION(S) (b) With power above the N-2H interlock. (e) When not PASSIVELY COOLED.(g) With narrow range RCS hot temperature above the T-4 interlock. (h) With [wide range] RCS [hot] temperature above the T-2 interlock and containment water level below the L-1 interlock.

• • 12.b. Low Low Pressurizer Level 1 2 3(h) 22.c. High Narrow Range Containment Pressure 1 2 3(i) 25.c. Low AC Voltage to ELVS Battery Chargers 1 2 3 26.c. High Under-the-Bioshield Temperature 1 2 3 (h) With [wide range] RCS [hot] temperature above the T-2 interlock and containment water level below the L-1 interlock.

• (i) With RCS temperature above the T-3 interlock.

T-3 is active when 3 of 4 channels of wide range RCS hot temperature < 350°F.

ASSOCIATED MPS INSTRUMENTATION FUNCTION(S) 1.b. High Power Range Linear Power 1 2(a) 3(a) 2.b. High Power Range Positive and Negative Rate1(b) - - 3.b. High Intermediate Range Log Power Rate 1(c) 2(a) 3(a) 4.b. High Source Range Count Rate 1(d) 2(a) 3(a) 5.b. High Source Range Log Power Rate 1(d) 2(a) 3(a) 6.a. High Subcritical Multiplication 1(d) 2(a) 3(a) 7.d. High Pressurizer Pressure 1 2(a) 3(a) 8.e. Low Pressurizer Pressure 1(g) - -

9.e. Low Low Pressurizer Pressure 1 2(a) 10.c. High Pressurizer Level 1 2(a) 3(a) 11.c. Low Pressurizer Level 1 2(a) 3(a) 13.d. High Narrow Range RCS Hot Temperature 1 - - 14.a. Low RCS Flow 1 2 3 15.c. Low Low RCS Flow 1 2(a) 3(a) 17.d. High Main Steam Pressure 1 2(a) -

18.d. Low Main Steam Pressure 1(b) - -

20.d. High Steam Superheat 1 - - 21.d. Low Steam Superheat 1 - - 22.f. High Narrow Range Containment Pressure 1 2(a) 3(a) 25.c. Low AC Voltage to ELVS Battery Chargers 1 2(a) 3(a) 26.c. High Under-the-Bioshield Temperature 1 2(a) 3(a) (a) When capable of CRA withdrawal. (b) With power above the N-2H interlock.

(c) With power below the N-2L Interlock.

(d) When Intermediate Range Log Power less than N-1 interlock. (g)With narrow range RCS hot temperature above the T-4 interlock.

ASSOCIATED MPS INSTRUMENTATION FUNCTION(S) 8.c. Low Pressurizer Pressure 1(g)9.c. Low Low Pressurizer Pressure 1 2 - 10.b. High Pressurizer Level 1 2 3 12.c. Low Low Pressurizer Level 1 2 3(h) 15.b Low Low RCS Flow (Modes 1, 2, and 3) 1 2 3 22.d High Narrow Range Containment Pressure 1 2 3(i) (g) With narrow range RCS hot temperature above the T-4 interlock.(h) With [wide range] RCS [hot] temperature above the T-2 interlock and containment water level below the L-1 interlock.

• • (i) With RCS temperature above the T-3 interlock. 7.c. High Pressurizer Pressure12(f)3(f)8.d. Low Pressurizer Pressure1(g) - - 9.d. Low Low Pressurizer Pressure 1 2 -

11.b. Low Pressurizer Level 1 2(f) 3(f) 12.d. Low Low Pressurizer Level 1 2(f) 3(f) 13.c. High Narrow Range RCS Hot Temperature 1 2(f) 3(f) 17.c. High Main Steam Pressure 1 2(f) 3(f) 18.c. Low Main Steam Pressure 1(b) - -

19.c. Low Low Main Steam Pressure 1 2(f) -

20.c High Steam Superheat 1 - -

21.c. Low Steam Superheat 1 - - 22.e. High Narrow Range Containment Pressure 1 2(f) 3(f) 25.e. Low AC Voltage to ELVS Battery Chargers 1 2(f) - 26.e. High Under-the-Bioshield Temperature 1 2(f) 3(f) (b) With power above the N-2H interlock. (f) With pressurizer heater trip breakers closed.

(g) With narrow range RCS hot temperature above the T-4 interlock.

ASSOCIATED MPS INSTRUMENTATION FUNCTION(S) 24.a High RCS Pressure - Low Temperature Overpressure Protection - - 3(k) (k) With wide range RCS cold temperature below the LTOP enable temperature specified in the PTLR (T-1 interlock) and*

• • • • • 16.4.1.4 LCOs required by Criterion 4 - A structure, system, or component which operating experience or probabilistic risk assessment has shown to be significant to public health and safety. **

• 16.4.1.5 LCOs required by none of the Criteria *16.4.1.6 Non-LCO-required SSCs, functions, and process variables typically addressed by LCOs in W-STS, CE-STS, or W-AP1000-STS *LCO not because parameter is implicitly ensured to be within limits by another LCO

• LCO not required because system is classified as nonsafety-related in NuScale design

• LCO not required because system or component is not part of the NuScale Design

• LCO not required because the 1988 split report's rationale for including an optional system is not satisfied

16.4.1.7 Support system with operability requirement implied by surveillance requirement16.4.1.8 Conclusion 16.4.2.1 Included W-STS or W-AP1000-STS definitions with no changes

16.4.2.2 Included W-STS or W-AP1000-STS definitions with proposed changes

each possible interlock logic state required for OPERABILITY of a logic circuiteach possible interlock logic state required for OPERABILITY of a logic circuit.

16.4.2.3 Included NuScale-specific definitions

16.4.2.4 Omitted W-STS definitions *

oo ooooo

• ..

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16.4.2.5 Conclusion for Section 1.1 16.4.2.6 Logical connectors, completion times, and frequency 16.4.2.7 Conclusion for Chapter 1 (emphasis added)This limit is not included in the technical specifications because it is not a process variable that is controlled by plant conditions during operations.

Conclusion for Chapter 2 16.4.4.1 LCO Use and Applicability

16.4.4.2 SR Use and Applicability 16.4.4.3 Conclusion for Section 3.0

• Conclusion for Chapter 3 LCO Statements

..

and

or and orclosed.provided2 of 4 containment water level channels are 45 ft (L-1 not active) or both divisional RTBs are open (RT-1 active).

provided 3 of 4 containment water level channels are > 45 ft (L-1 active) or at least one divisional RTB is closed (RT-1 not active), or both.or more than one RVV open or more than one RVV open or more than one RVV openand more than one RVV closedif not already bypassed by 3 of 4 channels of containment water level > 45 ft (L-1 active), and provided the NPM is not Passively Cooled. provided 2 of 4 channels of containment water level are 45 ft (L-1 not active); provided the NPM is Passively Cooled (Table 3.3.1-1 Footnote (e) "When not PASSIVELY COOLED," modifies MODE 3 applicability for MPS Functions 22.b and 23.a of LCO 3.3.1.)

Conclusion for Chapter 3 LCO Applicability Statements 16.4.7.1 Conditions for a loss of redundancy ***

• One

• • • • One*One One

One or more required valves inoperable.

• One One 16.4.7.2 Conditions for when a Required Action and associated Completion Time are not met

LCO ACTION Be in Mode 1 below 25% RTP Be in Mode 1 below 15% RTP Be in Mode 1 with k eff < 1.0 Open all RTBs *Open PHT breakers Be in Mode 2 *Open 2 RVVs Be in Mode 3 & Passively Cooled *Be in Mode 3 Be in Mode 3 with T hot < 200°F *with T cold < 325°F (< T-1) Be in Mode 3 with all RCS temps < 200°F Be in Mode 3 with T hot < 200°F (< T-2) Be in Mode 3 with CNV level > L-1 (> 45 ft) Isolate (1) CVCS DI water makeup. (2) CVCS flow to RCS. (3) DI water flow path to RCS. LCO 3.0.3 7 hours8.101852e-5 days <br />0.00194 hours <br />1.157407e-5 weeks <br />2.6635e-6 months <br /> 37 hours 3.1.2 Action B 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> 3.1.3 Action B 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> 3.1.4 Action A 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> 3.1.5 Action B 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> 3.1.6 Action B 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> 3.1.7 Action E 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> 3.1.9 Action B (1) 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> 3.2.1 Action A 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> 3.2.2 Action A 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> 3.3.1 Actions C&

D for RTS Functions 1a, 3a, 4a, 5a, 7a, 8a, 9a, 10a, 11a, 13a, 15a, 17a, 19a, 20a, 21a, 22a 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> 3.3.1 Actions C&D for DHRS Functions 8b, 20b, 21b, 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> 3.3.1 Actions C&

E for RTS Functions 2a, 18a 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> (<N-2 L) 3.3.1 Actions C&

E for DHRS Function 18b 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> (<N-2 L) 3.3.1 Actions C&

E for PHT Function 18c 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> (<N-2 L) 3.3.1 Actions C&

F for CVCSI Functions 8c, 9c, 10b, 12c, 15b, 22d (2) 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> 3.3.1 Actions C&

G for PHT Functions 7c, 8d, 9d, 11b, 12d, 13c, 17c, 19c, 20c, 21c, 22e

• 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />

LCO ACTION Be in Mode 1 below 25% RTP Be in Mode 1 below 15% RTP Be in Mode 1 with k eff < 1.0 Open all RTBs *Open PHT breakers Be in Mode 2 *Open 2 RVVs Be in Mode 3 & Passively Cooled *Be in Mode 3 Be in Mode 3 with T hot < 200°F *with T cold < 325°F (< T-1) Be in Mode 3 with all RCS temps < 200°F Be in Mode 3 with T hot < 200°F (< T-2) Be in Mode 3 with CNV level > L-1 (> 45 ft) Isolate (1) CVCS DI water makeup. (2) CVCS flow to RCS. (3) DI water flow path to RCS. 3.3.1 Actions C&

H for DWSI Functions 1b, 2b, 3b, 4b, 5b, 6a, 7d, 8e, 9e, 10c, 11c, 13d, 14a, 15c, 17d, 18d, 19d, 20d, 21d, 22f (3) 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> 3.3.1 Actions C&

I for ECCS Functions 16a, 23a and DHRS Functions 7b, 9b, 13b, 17b, 22b 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> 36 hours 3.3.1 Actions C&

J for LTOP Function 24a

• 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> 3.3.1 Actions C&

K for DHRS Function 19b 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> 36 hours 3.3.1 Actions C&

L for CIS Function 12b 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> 3.3.1 Actions C&

M for Functions 25a, 26a RTS 25b, 26b DHRS 25c, 26c CIS 25d, 26d DWSI 25e, 26e PHT *96 hours 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> 96 hours 96 hours0.00111 days <br />0.0267 hours <br />1.587302e-4 weeks <br />3.6528e-5 months <br /> M.4 (3) 96 hours0.00111 days <br />0.0267 hours <br />1.587302e-4 weeks <br />3.6528e-5 months <br /> 3.3.1 Actions C&

N (N.2.1 OR N.2.2) for DHRS Function 12a N.1 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> N.2.1 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> N.2.2 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> 3.3.2 Action C Imme-diately 3.3.3 Actions B&

C for Functions

1. ECCS 2. DHRS 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> 36 hours 3.3.3 Actions B&

D for Function 3. CIS 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> 3.3.3 Actions B&

E for Function 4. DWSI (3) 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> 3.3.3 Actions B&

F for Function 5. CVCSI (2) 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> 3.3.3 Actions B&

G for Function 6. PHT 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> Note 1 3.3.4 Action C for Manual Function 1. RTS Imme-diately 3.3.4 Action D for Manual Functions

2. ECCS 3. DHRS 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> 72 hours 3.3.4 Action E for Manual Function 5. DWSI (3) 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> 3.3.4 Action F for Manual Function

6. CVCSI (2) 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br />

LCO ACTION Be in Mode 1 below 25% RTP Be in Mode 1 below 15% RTP Be in Mode 1 with k eff < 1.0 Open all RTBs *Open PHT breakers Be in Mode 2 *Open 2 RVVs Be in Mode 3 & Passively Cooled *Be in Mode 3 Be in Mode 3 with T hot < 200°F *with T cold < 325°F (< T-1) Be in Mode 3 with all RCS temps < 200°F Be in Mode 3 with T hot < 200°F (< T-2) Be in Mode 3 with CNV level > L-1 (> 45 ft) Isolate (1) CVCS DI water makeup. (2) CVCS flow to RCS. (3) DI water flow path to RCS. 3.3.4 Action G for Manual Function 7. PHT *24 hours Note 1 3.3.4 Action H for Manual Function 8. LTOP

• Imme-diately 3.3.4 Action I Manual Function 4. CIS 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> 3.3.5 Action B 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> 36 hours 3.4.1 Action C 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> 3.4.2 Action A 30 min 3.4.3 Action B 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> 36 hours Note 2 3.4.3 Action D Imme-diately 36 hours4.166667e-4 days <br />0.01 hours <br />5.952381e-5 weeks <br />1.3698e-5 months <br /> Note 3 3.4.4 Action B 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />

• 36 hours4.166667e-4 days <br />0.01 hours <br />5.952381e-5 weeks <br />1.3698e-5 months <br /> Note 4 3.4.5 Action B 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> 3.4.6 Action C 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> 3.4.7 Action C 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> 3.4.8 Action C 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> 36 hours 3.4.9 Action B 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> 36 hours 3.5.1 Action C 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> 36 hours 3.5.2 Action B 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> 36 hours 3.5.3 Action D 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> 36 hours 3.6.1 Action B 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> 3.6.2 Action C 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> 3.7.1 Action C 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> 36 hours 3.7.2 Action D 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> 36 hours Note 1: Required Action G.1 of LCO 3.3.3 and LCO 3.3.4 says "De-energize Pressurizer Heaters." not "Open pressurizer heater trip breakers." Note 2: Required Action B.2 of LCO 3.4.3 says "Be in MODE 3 with RCS pressure < 500 psia." Note 3: Required Action D.2 of LCO 3.4.3 says "Be in MODE 3 with RCS temperature less than or equal to the containment flooding RCS temperature limit allowed by the PTLR. Note 4: Required Action B.2 of LCO 3.4.4 says "Be in MODE 3 with RCS cold temperature below LTOP enable interlock T-1 temperature."

16.4.7.3 Conditions for a Loss of Function **or more

• or twoor two

16.4.7.4 Actions Notes Allowing Separate Condition Entry **

16.4.7.5 Conditions for Process Variable Outside Limits**

• 16.4.7.6 Shutdown Required Actions and Completion Times ****

16.4.7.7 Conclusion for Action Requirements 16.4.8.1 Surveillance Statements **

eacheach*16.4.8.2 Surveillance Frequencies Not Governed by the Surveillance Frequency Control Program

16.4.8.3 Surveillance Frequencies Governed by the Surveillance Frequency Control Program

16.4.8.4 Instrumentation Surveillances

isolatedtransmit onlyisolated, transmit onlyisolated, transmit only,

All field sensors and signal processing equipment for these channels are assumed to operate within the allowances of these uncertainty magnitudes. Transmitter and signal processing equipment calibration tolerances and drift allowances must be specified in plant calibration procedures, and must be consistent with the values used in the setpoint methodology.

.

"16.4.8.5 Proposed exceptions to meeting certain surveillances for isolation valves and circuit breakers italics*o[ ------------------------------NOTE------------------------------ Not required to be met for dampers and valves locked, sealed or otherwise secured in the actuated

position.

---

]

• o[ ------------------------------NOTE------------------------------ Not required to be met for dampers and valves locked, sealed or otherwise secured in the actuated

position. --------------------------------------------------------------------]*o[ ------------------------------NOTE------------------------------ Not required to be met for dampers and valves locked, sealed or otherwise secured in the actuated position. --------------------------------------------------------------------]*o[ ------------------------------NOTE------------------------------ Not required to be met for dampers and valves locked, sealed or otherwise secured in the actuated position. --------------------------------------------------------------------]*o[ ------------------------------NOTE------------------------------ Not required to be met for dampers and valves locked, sealed or otherwise secured in the actuated

position. --------------------------------------------------------------------]

• o[ ------------------------------NOTE------------------------------ Not required to be met for valves locked, sealed or otherwise secured in the actuated position.

---

]

that is not locked, sealed, or otherwise secured in position,the actuatedthat is not locked, sealed, or otherwise secured in position, requiredunder administrative controls independent of the outcome of the TSTF-NRC traveler review and approval activitiesthe OPERABILITY of the equipmentis being metA commonly used example is a valve that is in the position to perform its safety function, and is not assumed to move following actuation.

except for valves that are open under administrative controls

except for valves that are open under administrative controlsThe Note was removed as unnecessary because the LCO only applies to closed reactor vent

valves.

closed except for containment isolation valves that are open under administrative controls.except for valves that are open under administrative controlsexcept for valves that are open under administrative controls 16.4.8.6 Additional issues stemming from unique NuScale operations

16.4.8.7 Conclusion for Surveillance Requirements 16.4.9.1 Section 4.1, Site Location 16.4.9.2 Section 4.2, Reactor Core 16.4.9.3 Section 4.3, Fuel Storage 16.4.9.4 Conclusion for Chapter 4 16.4.10.1 Sections 5.1, Responsibility; 5.2, Organization; and 5.3, Facility Staff Qualifications 16.4.10.2 Section 5.4, Procedures

• • 16.4.10.3 Section 5.5, Programs and Manuals

Conclusion for Section 5.5 16.4.10.4 Section 5.6, Reporting Requirements

16.4.10.5 Section 5.7, High Radiation Area 16.4.10.6 Conclusion for Chapter 5

• Approved TSTF travelers proposed for incorporation:

• Approved TSTF travelers not proposed for incorporation:

• Unapproved TSTF travelers under NRC staff review and proposed for incorporation:*Unapproved TSTF travelers under NRC staff review but not proposed for incorporation:*Withdrawn previously approved or pending TSTF travelers:

Proposed for incorporation:Not proposed for incorporation: *Disposition of T-travelers:

Proposed for incorporation:

N

• Conditions for adoption of TSTF changes, which are included in STS Revision 4, and Included in GTS: Not included in GTS: 16.4.11.1 Approved TSTF travelers proposed for incorporation Deletion of E-Bar Definition and Revision to RCS Specific Activity Tech Spec The proposed NuScale TS implement the TSTF changes modified to reflect the NuScale specific limits.

Clarify Application of Setpoint Methodology for LSSS Functions The proposed NuScale TS Sections 3.3 and 5.5 implement Option B of the traveler through inclusion of a Setpoint Program in

Section 5.5

Revise PWR Operability Requirements and Actions for RCS Leakage InstrumentationThe contents oftraveler were considered during construction of proposed 3.4.7, "RCS Leakage Detection Instrumentation."The NuScale leakage detection methods are significantly different from those used in PWRs Generic Letter 2008-01, Managing Gas Accumulation Affects GTS 3.5.2, "Decay Heat removal System" The NuScale DHRS was conservatively determined to have the potential for accumulation of non-condensible gases.

Instrumentation is provided to permit monitoring of the volume where gases could accumulate, and safety analyses are performed assuming the presence of gases in the volume above the instrumentation.

NuScale design incorporates design features to detect postulated accumulation of noncondensible gases and safety analyses are conservatively performed assuming gases are present in the quantity that could exist before indication of their presence. Clarify Use and Application Rules. Affects Section 1.3, "Completion Times," and SectionB 3.0, "SR Applicability," The changes to W-STS by this traveler are included as appropriate in the GTS, in

• Section 1.3, See response (ML17269A210) to RAI 156-9031, Question 16-3

• LCO 3.0.2 and Bases

• LCO 3.0.3 Bases

• LCO 3.0.4 Bases

• LCO 3.0.5 Bases, See discussion of response to RAI 157-9033, Question 16-12 (open item) in SER Section 16.4.4.1.

• SR 3.0.2 Bases

• SR 3.0.3 Bases, See discussion of response to RAI 157-9033, Question 16-15 in SER Section 16.4.4.2 TS Inservice Testing (IST) Program Removal & Clarify SR The changes described in the TSTF were implemented in appropriate locations Usage Rule Application to Section 5.5 Testing throughout the proposed NuScale GTS (Section 1.1, "Definitions," Subsections 3.1.9, "Boron Dilution Control," 3.4.4, "Reactor Safety Valves (RSVs)," 3.4.6, "CVCS Isolation Valves,"

3.5.1, "ECCS," 3.5.2, "Decay Heat Removal System," 3.6.2, "CIVs,"

3.7.1, "MSIVs," 3.7.2, "Feedwater Isolation.") The IST program was incorporated into the Definitions section. SRs applicable to similar components associated with functions or SSCs in the GTS were revised to be consistent with the traveler. Consistent with the TSTF traveler, the IST program description is not provided in 5.5 Programs. The following statement is included after the first paragraph of Subsection B 3.0 SR

Applicability: "SR 3.0.2 and SR 3.0.3 apply in Chapter 5 only when invoked by a Chapter 5 Specification." Revise (APRM) Channel Adjustment SR; BWR (RPS) instrumentation. The NuScale design does not incorporate APRMs, however the excore neutron monitoring system that provides a similar function incudes requirements for calibration by comparison with a heat balance. The limits on acceptable deviation between the neutron flux monitor indication and the value measured by heat balance distinguishes between conservative and non-conservative differences, and establishes a limit and required actions to make adjustments if the difference is not in the conservative direction. The allowances provided by the TSTF traveler are incorporated in the proposed NuScale 3.3.1, "Module Protection System Instrumentation,"

Spent fuel storage rack neutron absorber monitoring program Revise definition of Channel Calibration and Channel Operational Test to permit each segment of an instrument loop to have its own Frequency controlled by the SFCP. The proposed modification of the COT definition, and other instrumentation surveillance definitions, implements STS change traveler TSTF-563-A; Clarify the Term Operational Convenience in the LCO 3.0.2 Bases to correct an inconsistency between the LCO 3.0.2 and LCO 3.0.3 Bases, and to restore the original intent of the phrase described in Generic Letter (GL) 87-09.

16.4.11.2 Approved TSTF travelers not proposed for incorporation Revise or Add Actions to Preclude Entry into LCO 3.0.3

- RITSTF Initiatives 6b & 6cThe topical report does not apply to NuScale.

The TS have been written to minimize the potential for conditions leading to explicit or default entry into LCO 3.0.3 Change in TS End States (WCAP-16294)The topical report does not apply to NuScale.

The proposed NuScale TS including operational paradigm is significantly different from that addressed in the TSTF. Relocate Stored Fuel Oil and Lube Oil Volume Values to Licensee ControlThe NuScale design does not require or include safety-related onsite diesel generators. Therefore, no corresponding specification is proposed, and the TSTF traveler is not applicable.Provide Risk-Informed Extended Completion Times - RITSTF Initiative 4b, which affects W-STS and CE-STS NuScale has deferred a final decision to incorporate this Revise BWR Operability Requirements and Actions for RCS Leakage Instrumentation NuScale leakage detection instrumentation and methods are not similar to those used in BWRs. Revise Ventilation System SRs to Operate for 10 hours1.157407e-4 days <br />0.00278 hours <br />1.653439e-5 weeks <br />3.805e-6 months <br /> per Month The NuScale design does not include credited ventilation systems and no TS are proposed. Reactor Pressure Vessel Water Inventory Control The NuScale design and operating paradigm does not include operations at reduced inventories or water levels. The NuScale design and operations, including refueling activities, will not result in a potential for water inventory in the reactor vessel to be reduced to the level of the fuel. All refueling operations are conducted with the reactor vessel and fuel remaining submerged in the reactor pool. Clarification of Rod Position Requirements; 3.1 reactivity control specifications related to rod position requirements. The NuScale core design is significantly different from that of large PWRs. The traveler was not incorporated

because the proposed changes are not necessary. 16.4.11.3 Unapproved TSTF travelers under NRC staff review and proposed for incorporation Add Exceptions to SRs When the Safety Function is Being Performed The passive NuScale design includes a limited number of valves with potential for the addressed condition to exist. Exceptions consistent with the traveler were incorporated into the SRs of Subsection 3.6.2, "Containment Isolation Valves."

16.4.11.4 Unapproved TSTF travelers under NRC staff review but not proposed for incorporation Exclusion of Time Constants from Channel Operational Tests inSpecifications 3.3.1, and 3.3.2The credited NuScale instrumentation does not include corresponding time constants or dynamic compensation. Clarify SR 3.0.3to be Consistent with Generic Letter 87-09 Revision of Specification 3.8.1 Required Actions B.3.1 and

B.3.2.The NuScale design does not depend on emergency AC power sources and there are no corresponding requirements in the proposed NuScale TS. Revise Shutdown Margin Definition to Address Advanced Fuel Designs - Only affects BWR STS definition of SDM. Not applicable Resolve CE Digital TS Inconsistencies Regarding CPCs and CEACs - The NuScale digital control system does not include CE core protection calculators (CPCs) or control element assembly calculators (CEACs), however the underlying purpose of instrumentation and control specifications the traveler was considered in the development of the Actions and SRs applicable to the corresponding NuScale specifications (3.3.1, "Module Protection System,".3.3.2, "Reactor Trip System Logic and Actuation," 3.3.3, "ESFAS Logic and Actuation," and 3.3.4, "Manual Actuation Functions.") The NuScale TS considered the reason for to the STS by the TSTF traveler. The specification Actions and SRs do not include conditions unrelated to system Operability. Increase containment isolation valve (CIV) Completion Times; update of TSTF-373; TSTF traveler is based on a risk-informed technical basis applicable to CE designed plants. The NuScale design is not consistent with the CE design and the technical basis for the traveler is not applicable to the NuScale design. Add Actions to preclude entry into LCO 3.0.3 - Risk-Informed TSTF (RITSTF) Initiatives 6b &

6c. containment spray and cooling systems, and emergency ventilation systems.The NuScale design does not include a containment spray system or emergency ventilation systems. Containment cooling is a passive function utilizing heat transfer through the [containment vessel] walls to the reactor pool. There are no credited ventilation systems in the design that need TS. Add Exceptions to SRs When the Safety Function is Being Performed; BWR specifications for secondary containment and control room ventilation and filtration systems.The NuScale design does not incorporate a containment gas treatment system similar to that used by the secondary containment design of BWRs. Nor does the NuScale design credit the control room ventilation systems with performing a function that is required to be performed in response to a

DBA. Revise Secondary Containment SRs; affects Bases for BWR STS Subsection 3.6.4, "Secondary Containment." ot applicable because the NuScale design does not include or credit a secondary containment or similar functional boundary and does not include a corresponding specification.

16.4.11.5 Withdrawn previously approved or pending TSTF travelers The topical report does not apply to NuScale design, which uses ESFAS and ESF systems that are not similar to those accounted for in the CE-STS. Revise Post-Accident Monitoring Instrumentation based on Regulatory Guide 1.97, Rev. 4 and NEDO-33349 Withdrawn by TSTF. Also, the NuScale design does not include any PAM instrumentation that meets the threshold for inclusion in the TS, Post Accident Monitoring instrumentation Requirements (WCAP-15981-NP-A).

TSTF Traveler is specific to PAM instrumentation selection for Westinghouse designsPAM instrumentationthe threshold for inclusion in GTS Clarify Application of Pressure Boundary Leakage Definition.

Add Action for Two Inoperable Control Room Emergency Air Temperature Control System (CREATCS) Trains; affects B&W-STS, W-STS, and CE-STS. The TSTF withdrew this traveler.

NuScale design does not credit a CREATCS or a similar, the GTS [do] not include a corresponding specification.

16.4.11.6 Disposition of T-travelers Correct Bases Discussion of Figure B 3.0-1NuScale has not incorporated the expanded explanation provided by the TSTF, consistent with NUREG-2194, Rev. 0 and the ESBWR GTS that did not incorporate the TSTF. Correct Containment Isolation Valve Bases Regarding Closed SystemsThe proposed NuScale Basesincorporate the corrected wording.Revised the Main Steam Isolation Valve (MSIV) and Main Feedwater Isolation Valve (MFIV) Specifications to Provide Actions for Actuator TrainsCorrect 3.1.4, Required Action A.1. Clarify the Application of SR 3.0.2 to SR 3.1.3.2, MTC; SR 3.1.3.2 The NuScale moderator temperature coefficient (MTC) specification SR does not include Notes that correspond directly with

those in and the NuScale Bases are consistent with the proposed specifications.

Clarify Notes regarding momentary transients outside the load band. The NuScale design does not depend on emergency AC power sources and there are no corresponding requirements in the proposed NuScale TS.

Incorporate in Model Applications as Reviewer's Notes This traveler describes the use of Reviewer's Notes in the Bases of the published STS. The TSTF traveler describes the management and identification of commitments into travelers and Bases. The proposed NuScale TS are based on the licensing basis provided in the DCA. Bracket Accident Analysis Discussion in LCO 3.4.4.

The NuScale plant does not include 'loops' or associated TS. The proposed NuScale Bases reflect the safety analyses applicable to the design and the use of brackets for non-COLA items is contrary to DC/COL-ISG-8.

Eliminate Incorrect Reference to Appendix R in the Remote Shutdown System Bases The incorrect reference in the CE Bases is not included in the NuScale Bases for the RSS, TS 3.3.5. Therefore, this traveler is not applicable for incorporation in the GTS Bases. Remove COLR and PTLR Revision and Date Relocation Provisions Added by TSTF-363, -408, and -419;

affects B&W-STS, W-STS, and CE-STS The NuScale administrative specifications in that describe the COLR and PTLR will include the number, title, date, and NRC staff approval document for the methodology by NRC letter and date. Pending an update to Specification 5.6.4 for the revision and date of the RCS pressure and temperature limits methodology technical report and NRC approval document and date, TSTF-533-T is being tracked as a confirmatory item.

Correction of Post-Accident Monitoring (PAM)

Instrumentation Bases; The NuScale PAM design does not include any variables that result in inclusion of a PAM technical specification.

Clarify Verification of Time Constants; affects W-STS Section 3.3 Not applicable. The credited NuScale instrumentation does not include corresponding time constants or dynamic compensation.

Safety Function Determination Program (SFDP) Changes for Consistency; Subsection 5.5.8 program description. The NuScale SFDP description provided in 5.5.8 is consistent with the intended content as previously described in Correct "Quadrant Power Tilt Ratio (QPTR)." The NuScale design does not include monitoring of a QPTR or QPTR-like variable. The TSTF is specific to an inappropriate wording that existed in the W-STS Bases. Correct Misleading Bases Statements in Systems not Required to be Operable in Shutdown Modes; affects Bases for systems that perform a support function for other systems required to be operable when the facility is shutdown. Specifically, cooling water systems. The NuScale design uses a large reactor pool as the (UHS) during operational modes and during transition and refueling operations.

Specification 3.5.3, is "At all times" and the Bases reflect this. There are no other corresponding systems in the NuScale design that are required to be operable during , provide support functions during shutdown conditions.

Clarify the Nuclear Instrumentation Bases Regarding the Detection of an Improperly Loaded Fuel Assembly; Section 3.9 nuclear instrumentation specifications The NuScale design includes neutron flux instrumentation at the refueling tool that corresponds to and performs a function similar to that of the source range neutron flux monitors used at PWRs. Therefore, the GTS includes Specification 3.8.1, "Nuclear Instrumentation."

Modify TS 3.8.1 and TS 3.8.2 Bases to Address an Open Phase Condition the NuScaledesign does not credit offsite electrical power.Clarify SR Bases added by TSTF-523; affects PWR and BWR specifications related to ECCS, decay heat removal, RHR, SDC and Containment Spray systems. Affects GTS 3.5.2, "Decay Heat Removal System (DHRS)" The NuScale DHRS was conservatively determined to have the potential for accumulation of non-condensible gases. Instrumentation is provided to permit monitoring of the volume where gases could accumulate, and safety analyses are performed assuming the presence of gases in the volume above the instrumentation.

NuScale design incorporates design features to detect postulated accumulation of noncondensible gases and safety analyses are conservatively performed assuming gases are present in the quantity that could exist before indication of their presence. Revise Bases to Reflect Revised SL Pressure Limit; affects BWR STS Bases for Subsections 2.1.1, 3.3.1, and

3.3.6. This traveler resolves an issue specific to the GE design that does not correspond to a NuScale SSC or function. Therefore, this traveler is not applicable to NuScale GTS. Addition of SRs Note forTurbine Bypass System, LCO 3.7.7 (BWR4 STS) and LCO 3.7.6 (BWR6 STS.) This traveler is not applicable because no corresponding SSC or function in the NuScale design is credited or otherwise would result in inclusion in the GTS. There is no LCO for a Turbine Bypass System. Bracket LCO 3.5.1 LCO Note in the ISTS; Addition of optional content or reviewer's notes to STS are not applicable or appropriate for DCA GTS submittal. Only COL-specific content is presented as bracketed content to be modified by applicants referencing the certified design. 16.4.11.7 Conditions for adoption of TSTF changes, which are included in STS Revision 4

This traveler does not apply to NuScale which has no containment spray system.

The staff determined that the generic TS Chapter 3 default Actions for shutting down a unit after the time allowed for restoring compliance with the LCO has expired, and the final state of the unit, are acceptable. SER Table 16.4.7-1 summarizes these Actions.

16.4.11.8 Conclusion for TSTF traveler disposition