ML20052A479

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Proposed Revision to Tech Spec 3/4.6.3.1,Table 3.6-1, Reflecting Addition & Deletion of Containment Isolation Valves
ML20052A479
Person / Time
Site: North Anna Dominion icon.png
Issue date: 08/21/1980
From:
VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:
Shared Package
ML20052A476 List:
References
NUDOCS 8204280368
Download: ML20052A479 (19)
v • d • e


Text

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00 M

= C

$Ag I TABLE 3.6-1 g@ CONTAINMENT ISOLATION VALVES 1O z VALVE MAxIMun ISOLATION TIME H

W NUMBER FUNCTION (SEC.)

A. PHASE "A" ISOLATION
1. MOV-2380 Reactor Coolant Pump Seal Water Return 10
2. MOV-2381 Reactor Coolant Pump Seal Water Return 10
3. HCV-2200A Reactor Coolant Letdown Line 10
4. HCV-22008 Reactor Coolant Letdown Line 10 y 5. HCV-2200C Reactor Coolant Letdown Line 10

[ 6. TV-2204 Reactor Coolant Letdown Line 10 h 7. TV-SI200 Nitrogen to Pressurizer Relief Tank and 51 60 Accumulators ,

8. TV-DG200A Primary Drains Transfer Tank Pump Discharge 60
9. TV-DG2006 Primary Drains Transfer Tank Pump Discharge 60

- 10. TV-DA200A Containment Sump Pump Discharge to Waste 60 Drain Tanks

11. TV-DA2008 Containment Sump Pump Discharge to Waste 60 Drain Tanks
12. TV-BD200A Steam Generator Blowdown 60
13. TV-BD2008 Steam Generator Blowdown 60
14. TV-BD200C Steam Generator Blowdown 60 0

E n

j TABLE 3.6-1 (Cont.)

E z

MAXIMUM i

VALVE ISOLATION TIME 53 NUMBER FUNCTION

= (SEC.)

--i

15. TV-802000 Steam Generator Blowdown 60
16. TV-80200E Steam Generator Blowdown 60 l
17. TV-80200F Steam Generator Blowdown 60
18. TV-RM200A Air Radiation Monitor Return 60
19. TV-RM200D# Air Radiation Monitor Return 60

,, 20. TV-RM2008 Air Radiation Monitor Supply 60 3: 21. TV-RM200C Air Radiation Monitor Supply 60

][

22. TV-2519A Primary. Grade Water 10
23. TV-VG200A Primary Vent Header 60
24. TV-VG2000 Primary Vent Header 60
25. TV-SI201 Safety Injection Accumulators to Waste 60
Gas Charcoal Filters 26: HCV-2936 Safety Injection Accumulators to Waste 10 l Gas Charcoal Filters
27. IV-SS204A Pressurizer Relief Tank Sample 60

.\

28. TV-SS204B Pressurizer Relief Tank Sample 60
29. TV-SS200A Pressurizer Liquid Space Sample 60 o,
30. TV-SS2008 Pressurizer Liquid Space Sample 60 h
31. TV-SS206A Primary Coolant flot Leg Sample 60 f=
32. TV-SS2068 Primary Coolant Hot leg Sample 60 l

l

'. e

i

. 5 4

TABLE 3.6-1 (Cont.)

E s MAXIMUM VALVE ISOLATION TIME b

-n NUMBER FUNCTION (SEC.)

n

33. TV-SS202A Primary Coolant Cold Leg Sample 60
34. TV-SS202B Primary Coolant Cold Leg Sample 60 -
35. TV-LM200A Reactor Containment Leakage Monitoring Lines 60 to Open Pressure Taps
36. TV-LM2008 Reactor Containment Leakage Monitoring Lines 60 to Open Pressure Taps 1 37. TV-LM200C Reactor Containment Leakage Monitoring Lines 60 l  ? to Open Pressure Taps j 38. TV-LM2000 Reactor Containment Leakage Monitoring Lines 60 to Open Pressure Taps
39. TV-LM200E Reactor Containment Leakage Monitoring Lines 60 to Open Pressure Taps
40. TV-LM200F Reactor Containment Leakage Monitoring Lines 60 to Open Pressure Taps
41. TV-LM200G Reactor Containment Leakage Monitoring Lines 60 to Open Pressure Taps
42. TV-LM200H Reactor Containment Leakage Monitoring Lines 60 to Open Pressure Taps
43. TV-SS201A Pressurizer vapor Space Sample 60

{

44. TV-SS2018 Pressurizer Vapor Space Sample 60 60

{o

45. TV-SV202-1# Condenser Air Ejector Vent
46. TV-SV203 Condenser Air Ejector Vent 60

TABLE 3.6-1 (Cont.)

MAXIMUM y ISOLATION TIME

$ VALVE

=i NUMBER FUNCTION (SEC.)

N Containment Vacuum Pump Suction 60 g 47. TV-CV250A

48. TV-CV250B Containment Vacuum Pump Suction 60 5 49. TV-CV250C Containment Vacuum Pump Suction 60 m ,
50. TV-CV250D Containment Vacuum Pump Suction 60
51. TV-SS203A Residual Heat Removal System Sample Lines 60 ,
52. TV-SS203B Residual Heat Removal System Sample Lines 60
53. TV-LM201A Reactor Containment Leakage Monitoring Lines 60 to Reference System
54. TV-LM201B Reactor Containment Leakage Monitoring Lines 60 u

];

to Reference System

55. TV-LM201C Reactor Containment Leakage Monitoring Lines 60 to Reference System 4 Reactor Containment Leakage Monitoring Lines 60
  • 56. TV-LM201D -

4 to Reference System

57. TV-2859 Safety Injection Test Line 10
58. TV-2842 Safety Injection Test Line 10
59. TV-SS212A Steam Generator Surface Sampic 60
60. TV-SS212B Steam Generator Surface Sample 60 61.. TV-MS209# Main Steam Drains to Condenser 60 ,
62. TV-MS210# Main Steam to Blowdown 60
63. TV-SV202-2# Condenser Air Ejector Vent 60
64. FCV-AS200A# Condenser Air Ejector Steam Supply 60
65. FCV-AS200Bf Condenser Air Ejector Steam Supply 60

TABLE 3.6-1 (Cont.)

5 MAXIMUM g ISOLATION TIME m VALVE g NUMBER FUNCTION (SEC) 5 66. TV-IA201A Containment Instrument Air Supply 60

67. TV-IA201B Containment Instrument Air Supply 60 h

s N 68. TV-TA202A Containment Instrument Air Return 60

69. TV-IA202Bf Containment Instrument Air Return 60
70. TV-DA203A Post Accident Sample System Containment 60 Return Line
71. TV-DA203B Post Accident Sample System Containment 60 Return Line h B. PHASE "B" ISOLATION
1. TV-CC203A Component Cooling Water from RHR System 60

[

o and Excess Letdown Heat Exchanger

2. TV-CC203B Component Cooling Water From RHR System 60 and Excess Letdown Heat Exchanger
3. TV-CC201A Reactor Coolant Pump Thermal Barrier 60 Cooling Water Return
4. TV-CC201B Reactor Coolant Pump Thermal Barrier 60 Cooling Water Return

! E5 E

I TABLE 3.6-1 (Cont.)

E E MAXIMUM

1 VALVE ISOLATION TIME s, NUMBER FUNCTION (SEC.)
5. TV-CC200A Chilled Water From Containment Air Recir- 60 culation Coils
6. TV-CC2000 Chilled Water from Containment Air Recir- 60 culation Coils '

R' 7. TV-CC200C Chilled Water From Containment Air Recir- 60

  • culation Coils

(( 8. TV-CC205A Chilled Water From Containment Air Recir- 60 F' culation Coils

9. TV-CC205B Chilled Water From Containment Air Recir- 60 culation Coils
10. TV-CC205C Chilled Water From Containment Air Recir- 60 culation Coils
11. TV-CC204A Reactor Coolant Pumps, Cooling Water In 60
12. TV-CC2048 Reactor Coolant Pumps, Cooling Water In 60
13. TV-CC204C Reactor Coolant Pumps, Cooling Water In 60
14. TV-CC202A Reactor Coolant Pumps and Shroud Cooling 60
15. TV-CC2028 Cooling Water Out Reactor Coolant Pumps and Shroud Cooling, 60

{T' Cooling Water Out 8

16. TV-CC202C Reactor Coolant Pumps and Shroud Cooling, 60 Cooling Water Out

5

o 5$ TABLE 3.6-1 (Cont.)

E MAXIMUM VALVE ISOLATION TIME c:

NUMBER FUNCTION (SEC.)

m

17. TV-CC202D Reactor Coolant Pumps and Shroud Cooling, 60 Cooling Water Out
18. TV-CC202E Reactor Coolant Pumps and Shroud Cooling, 60 Cooling Water Out
19. TV-CC202F Reactor Coolant Pumps and Shroud Cooling, 60 m Cooling Water Out S 20. TV-BD200A Steam Cenerator Blowdown 60
21. TV-BD2008 Steam Generator Blowdown 60

[*

22. TV-BD200C Steam Generator Blowdown 60
23. TV-BD2000 Steam Generator Blowdown 60
24. TV-BD200E Steam Generator Blowdown 60
25. TV-80200F Steam Generator Blowdown 60 C. CONTAINMENT PURGE AND EXHAUST (VENTILATION DUCTS)

. 1. MOV-HV200A* Purge Supply NA

2. MOV-HV200B* Purge Supply NA

{

3. MOV-HV202* Alternate Supply NA 7' oo C'
4. M0V-HV200C* Purge Exhaust NA ,
5. M0V-HV200D* Purge Exhaust NA
6. MOV-HV201* Bypass NA

4 TABLE 3.6-1 (cont.)

$ MAXIMUM g

x VALVE ISOLATION TIME g NUMBER FUNCTION (SEC.)

's D. MANUAL E

.4 w 1. 2-SI-47* Safety Injection Accumulator Make Up NA

2. 2-RH-38* Residual Heat Removal System to Refueling NA Water Storage Tank
3. 2-RH-37* Residual Heat Removal System to Refueling NA Water Storage Tank
4. (Deleted) h 5. (Deleted)

[ 6. ,

(Deleted) w

7. (Deleted)
8. 2-DA-7* Primary Vent Pot Vent NA
9. 2-DA-9* NA -

Primary Vent Pot Vent

10. 2-CH-233#* Reactor Coolant Pump Seal Water Supply NA
11. 2-CH-237#* Reactor Coolant Pump Seal Water Supply NA l

6

~

8 TABIE 3.6-1 (Cont.)

d x

E s MAXIMUM VALVE ISOLATION TIME E NUMBER FUNCTION (SEC.)

M to

12. 2-CH-241#* Reactor Coolant Pump Seal Water Supply NA
13. 2-SA-65* Service Air NA
14. 2-SA-123* Service Air NA
15. (Deleted)
16. NA*# Fuel Transfer Tube (Penetration #65) NA w 17. 2-CV-4* Air Ejector Suction NA
  • 18. 2-RC-143* Dead Weight Pressure Calibrator NA

[ 19. 2-RC-145" Dead Weight Pressure Calibrator NA

^

20. 1-RP-84* Refueling Purification Outlet NA
21. 2-RP-7* Refueling Purification Outlet NA
22. 2-RP-6* Refueling Purification Inlet NA 23, 1-RP-50* Refueling Purification Inlet NA
24. (Deleted)
25. (Deleted)
26. (Deleted)
27. 2-WT-437* Steam Generator Wet Layup NA
28. 2-WT-438* Steam Generator Wet Layup NA 7
29. 2-WT-439* Steam Generator Wet Layup MA y
30. 2-WT-446" Steam Generator Wet Layup NA $

5 TABLE 3.6-1 (Cont.)

U x

E MAXIMUM B VALVE ISOLATION TIME

. NUMBER FUNCTION (SEC.)

E

31. 2-WT-447* Steam Generator Wet Layup NA
32. 2-WT-448* Steam Generator Wet Layup NA 33, 2-51-83* liigh Head Safety Injection, MA (Boron Injection Tank Bypass)
34. NA* Fire Protection Supply (Penetration 34) NA w

2 E. REMOTE MANUAL i T

1. MOV-QS201A* Quench Spray Pump Discharge NA
2. MOV-QS201B* Quench Spray Pump Discharge NA
3. MOV-RS255A#* Recirc. Spray Pump Suction NA
4. MOV-RS2558#* Recirc. Spray Pump Suction NA
5. MOV-2860A#* LilSI Pump Suction From Containment Sump NA
6. MOV-2860B#* LHS1 Pump Suction From Containment Sump NA
7. MOV-RS256A* Recirculation Spray Pump Discharge NA
8. MOV-RS256B* Recirculation Spray Pump Discharge NA

! 9. H0V-SW203A* Service Water to Recirculation Spray Coolers NA .

10. MOV-SW2038* Service Water to Recirculation Spary Coolers NA h
11. MOV-SW203C* Service Water to Recirculation Spray Coolers NA h
12. MOV-SW203D* Service Water to Recirculation Spray Coolers NA

,f 13. MOV-SW204A* Service Water from Recirculation Spray Coolers NA

TABLE 3.6-1 (Cont.)

8 y MAXIMUM m

3 VALVE ISOLATION TIME

@ NUMBER FUNCTION (SEC.)

I

@ 14. MOV-SW204B* Service Water from Recirculation. Spray NA y Coolers w

15. MOV-SW204C* Service Water from Recirculation Spray NA Coolers
16. MOV-SW204D* Service Water from Recirculation Spray NA Coolers -
17. TV-CV200* Containment Air Ejector Suction NA
18. MOV-2869A* High Head Safety Injection to RCS Except NA u, Boron Injection Line D

, 19. MOV-2836* High Head Safety Injection to RCS Except NA l3 Boron Injection Line cn

20. MOV-2869B* High Head Safety Injection to RCS Except NA-Boron Injection Line
21. HCV-2142* Reactor Coolant Letdown Line From RHR System NA .
22. (Dele ted',
23. (Deleted)
24. MOV-2890A* LHSI Pump Discharge to Reactor Coolant System NA Hot Legs
25. MOV-2890B* LHSI Pump Discharge to Reactor Coolant System NA Hot' Legs
26. MOV-2890C* LHSI Pump Discharge to Reactor Coolant System NA Cold Legs

TABLE 3.6-1 (Cont.)

5 MAXIMUM y ISOLATION TIME

-- VALVE g NUMBER FUNCTION (SEC.)

5 e 27. MOV-2890D* LHSI Pump Discharge to Reactor Coolant NA g System Cold Legs N 28. FCV-2160* Loop Fill Header NA I u

29. MOV-2289A* Charging Line NA
30. MOV-2867C* High Head Safety Injection, Boron Injection NA Tank '
31. MOV-2867D* High Head Safety Injection, Boron Injection NA Tank
32. MOV-RS-200A* Casing Cooling to Outside Recirculation Spray NA Pump w 33. MOV-RS-200B* Casing Cooling to Outside Recirculation Spray NA

); Pump os 34. MOV-RS-201A* Casing Cooling to Outside Recirculation Spray NA Pump 4

" Casing Cooling to Outside Recirculation Spray NA

35. MOV-RS-201B*

Pump

36. TV-HC-208A Containment Atmosphere Sample Line NA
37. TV-HC-208B Containment Atmosphere Sample Line NA
38. TV-HC-200A Suction Hydrogen Analyzer NA
39. TV-HC-2003 Suction Hydrogen Analyzer NA
40. TV-HC-201A Discharge Hydrogen Analyzer NA
41. TV-HC-201B Discharge Hydrogen Analyzer NA
42. TV-HC-202A Suction Hydrogen Analyzer NA
43. TV-HC-202B Suction Hydrogen Analyzer NA
44. TV-HC-203A Discharge Hydrogen Analyzer NA

2 TABLE 3.6-1 (Cont.)

O y MAXIMUM p VALVE ISOLATION TIME ll NUMBER FUNCTION (SEC.)

' 45. TV-HC-203B Discharge Hydrogen Analyzer NA Ei y 46. TV-HC-204A Suction Hydrogen Recombiner NA w

47. TV-HC-204B Suction Hydrogen Recombiner NA
48. TV-HC-205A Discharge Hydrogen Recombiner NA
49. TV-HC-205B Discharge Hydrogen Recombiner NA ,
50. TV-HC-206A Suction Hydrogen Recombiner NA
51. TV-HC-206B Suction Hydrogen Recombiner NA hh 52. TV-HC-207A Discharge Hydrogen Recombiner NA

[

E

53. TV-HC-207B Discharge Hydrogen Recombiner NA j F. CHECK
1. 2-CC-194 Component Cooling Water to RHR System and NA Excess Letdown Heat Exchanger
2. 2-CC-199 Component Cooling Water to RHR System and NA Excess Letdown Heat Exchanger 3, 2-SI-93 High Head Safety Injection, Boron NA Injection to RCS 1 4. 2-CC-302 Component Cooling Water to Containment Air NA Recirculation Coils i 5. 2-CC-289 Component Cooling Water to Containment Air NA Recirculation Coils

.j *

,c .

l .

1 E

t A z

TABLE 3.6-1 (Cont.)

N

. g '

, max! Nun e VALVE ISOLATION TIME z NUMBER FUNCTION q -4 (SEC.)

,. n '

t'

6. 2-CC-276 Component Cooling Water to Containment Air Recircu-

!: lation Colls MA .

i'

7. 2-CH-335 Charging Line NA
8. 2-CC-152 Component Cooling Water to Reactor Coolant Pumps MA
9. 2-CC-115 Component Cooling Water to Reactor Coolant Pumps MA i
10. 2-CC-78 Component cooling Water to Reactor Coolant Pumps MA

.; 1 11. 2-CH-331 Reactor Coolant Pumps, Seal Water R'eturn NA

[ 12. 2-51-136 Safety Injection Accumulator Make Up NA

., 13. 2-51-85 High Head Safety Injection .o RCS except Boron 1 Injection Line NA d 14. 2-HC-20 Discharge From Containment Atmosphere Clean-up

, System MA i 15. 2-HC-15 Discharge From Containant Atmosphere Clean-up System NA

16. 2-CH-308# Reactor Coolant Pump Seal Water Supply NA
17. 2-CH-260f Reactor Coolant Pump Seal Water Supply NA
18.  ?- 01-284# Reactor Coolant Pump Seal Water Supply NA
19. 2-IA-428 Air Radiation Monitor Return NA Y
20. 2-RC-162 Primary Grade Water NA
21. 2-CH-332 Loop Fill Header NA
22. 2-IA-250 Containment Instrument Air Return NA e

1 E

=

$ TABLE 3.6-1 (Cont.)

E z

MAXIMUM VALVE ISOLATION TIME E NUMBER FUNCTION (SEC.)

-4 m

23. 2-51-132 Nitrogen to Pressurizer Relief Tank and SI Accumulators NA
24. 2-51-126 LHSI Pump Discharge to Reactor Coolant System Hot Legs NA
25. 2-51-128 LHSI Pump Discharge to Reactor Coolant System ,

Hot Legs NA y 26. 2-SI-91 LHSI Pump Discharge to Reactor Coolant System

  • Cold Legs NA

[ 27. 2-51-99 LHSI Pump Discharge to Reactor Coolant System e Cold Legs NA

28. 2-51-105 LHSI Pump Discharge do Reactor Coolant System .

Cold Legs NA

29. 2-QS-2?** Quench Spray Pump Discharge NA .
30. 2-QS-11** Quench Spray Pump Discharge NA
31. 2-RS-30** Recirculation Spray Pump Discharge NA
32. 2-R5-20** Reciruclation Spray Pump Discharge NA
33. 2-VP-24 Air Ejector Vent NA
34. 2-51-119 High Head Safety Injection to RCS Except Boron
  • Injection Line NA 4
35. 2-51-107 High Head Safety Injection to RCS Except Baron "g, Injection Line NA o
36. 2-FW-62# Feedwater to Steam Generators NA 1

o 5

1 5

] I TABLE 3.6-1 (Cont.)

?

E g MAXIMUM q VALVE ISOLATION TIME NUMBER FUNCTION (SEC.)

Feedwater to Steam Generators

37. 2-FW-94# NA
38. 2-FW-126# Feedwater to Steam Generators NA
39. 2-WT-41# Chemical Feed Lines NA
40. 2-WT-53# Chemical Feed Lines NA t> 41. 2-WT-69# Chemical Feed Lines NA

[ 42. 2-FW-70# Auxiliary Feedwater to Steam Generator NA

$ 43. 2-FW-102# Auxiliary Feedwater to Steam Generator NA ,

44. 2-FW-134# Auxiliary Feedwater to Steam Generator NA ,
45. 2-RS-103# Casing Cooling to Outside Recirculation Spray Pump NA
46. 2-RS-118# Casing Cooling to Outside Recirculation Spray Pump NA .
47. NA Fire Protection Supply (Penetration 34) NA

)

i M

b O 4

a f n

r TABLE 3.6-1 (Cont.)

E

, MAXIMUM c VALVE ISOLATION TIME z NUMBER FUNCTION a

(SEC.)

N G. STEAM LINE ISOLATION

1. TV-MS201A# Main Steam Line Trip Valve 5
2. TV-MS2018# Main Steam Line Trip Valve 5
3. TV-MS2010# Main Steam Line Trip Valve 5 M

[ H. RELIEF s

! 1. RV-2203 Letdown Line Relief Valve NA

  1. Valve not subject to Type "C" leakage test. .
  • Valve position maintained by administrative control NA - Not applicable

b

- .- _ . . . a.- ., ._..

0 e

4 e

ATTACllMENT 2 f

i i

h 1

DISCUSSION OF PROPOSED TECHNICAL SPECIFICATION CHANGE The proposed Technical Specification Change reflects a revision to Technical Specification 3/4.6.3.1 Table 3.6-1 to reflect the addition and deletion of containment isolation valves. .

The addition of one direct-acting solenoid valve (TV-SS203A) is being used to replace two air-operated trip valves (TV-SS207A and TV-SS207B) to improve post-accident sampling capabilities. The double isolation direct-acting solenoid valve is being installed to insure more reliable operation during accident conditions.

The addition of two air-operated trip valves (TV-DA203A and TV-DA203B) are being installed on the sample return line for the Post-Accident Sampling System in order to reduce radiation levels outside the containment when post-accident samples are being withdrawn from the reactor coolant system and containment sump. These valves will be normally closed and receive a Phase A signal to assure they are tripped closed on a safety injection signal.

The replacement of four manual valves (2-HC-13, 2-HC-29, 2-HC-18 and 2-HC-33) with sixteen remote operated manual valves (HC series valves) and the addition of remote manually operated double barrier isolation valves decreases personnel exposure to put the hydrogen analyzer and hydrogen recombiner into service and it also provides the capability of double isolation between containment atmosphere and all other systems.

The probability of occurrence or the consequences of a malfunction of equipment important to safety and previously evaluated in the FSAR is not increased because sampling system valve additions are designed consistent with codes and standards of the existing system and the replacement of containment isolation valves and the addition of double barrier isolation valves will maintain containment isolation capabilities.

The possibility of a different type of accident or malfunction than was previously evaluated in the FSAR has not been created because the sampling system valve additions do not change the characteristics of any system in operation during reactor operation and the containment atmospheric cleanup system is designed to Seismic Class 1 and single failure criteria.

The margin of safety as described in the BASIS section of any part of the Technical Specifications is not reduced because the upgrade and installation of containment isolation valves satisfies the seismic design criteria for safety related systems and continues to provide containment isolation integrity.

O

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