ML20078K279

Proposed Tech Specs,Eliminating TS Active Safety Function Designation of Eight Drywell Chilled Water Sys Valves

ML20078K279
Person / Time
Site:	Limerick
Issue date:	01/27/1995
From:	PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC
To:
Shared Package
ML20078K275	List: ML20078K273 ML20078K279
References
NUDOCS 9502090156
Download: ML20078K279 (7)

Text

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J ATTACHMENT 2 LIMERICK GENERATING STATION UNIT 1 AND UNIT 2 Docket Nos.

50-352 50-353 Ucense Nos.

NPF-39 NPF-85 TECHNICAL SPECIFICATIONS CHANGE REQUEST NO. 94-48-0 AFFECTED PAGES UNIT 1 UNIT 2 3/4 6-24 3/4 6-24 3/4 6-25 3/4 6-25 3/4 6-43 3/4 6-43 9502090156 950127 PDR P

ADOCK 05000352 PDR

TABLE 3.6.3-l (Continued)' .- n PART A - PRIMARY CONTAINMENT ISOLATION VALVES .

3!

m .

5 INB0ARD OUTBOARD ISOL.

9 PENETRATION FUNCTION ISOLATION ISOLATION MAX.ISOL. SIGNAL (S), NOTES P&ID i NUMBER BARRIER BARRIER TIME.IF APP. IF APP. <

c- (SEC)(26) (20) 1 5 040G-1 ILRT DATA ACQUISITION 60-1057 NA 11 60 .

' ~  !

60-1058 NA 11 040G-2 ILRT DATA ACQUISITION 60-1071 NA 11 60 '

60-1070 NA 11 i

040H-1 CONTAINMENT INSTRUMENT 59-1005A(CK) NA 59

GAS SUPPLY - HEADER 'A' HV59-129A 7 C,H,S  !

042 STANDBY LIQUID CONTROL 48-1F007(CK) NA 48 i (X-Il6) HV48-IF006A 60 29

. . 1 o, 0438 MAIN STEAM SAMPLE HV41-IF084 10 B 41  ;

i A

HV41-lF085 10 B .

t 044 RWCU ALTERNATE 41-1017 NA 5,31 41 RETURN 41-1016(X-9A, NA l X-98) t

PSV41-112 NA 045A(8,C,0) LPCI INJECTION 'A'(B,C,D) HV51-1F041A(8,C, NA 9,22 51 l D)(CK)

HV51-142A(B,C, 7 9,22 HV51-1F017A 38 (B,C,D) 050A-1 DRYWELL PRESSURE HV42-147B 45 10 42  !

INSTRUMENTATION 053 DRYWELL CHILLED WATER HV87-128 60 C,H 11 87  ;

SUPPLY - LOOP 'A' HV87-120A 60 C,H 11 HV87-125A NA 34 l i

TABLE 3.6.3-1 (Continued) .-

. PART A - PRIMARY CONTAINMENT ISOLATION VALV Q ,

C

~3: .

m 1 y INBOARD OUTBOARD ISOL.

, PENETRATION FUNCTION ISOLATION ISOLATION MAX.ISOL. SIGNAL (S), NOTES ~P&ID i 4

c NUMBER BARRIER BARRIER TIME.IF APP. IF APP.

= (SEC)(26) (20) i

~

054 DRYWELL CHILLED WATER HV87-129 60 C,H 11 87 i RETURN - LOOP 'A' HV87-121A 60 C,H 11 HV87-124A NA 34 l 055 DRYWELL CHILLED WATER HV87-122 60 C,H 11 87 SUPPLY - LOOP 'B' HV87-120B 60 C,H 11 HV87-125B NA 34 l 056 DRYWELL CHILLED WATER HV87-123 60 C,H 11 87 t RETURN - LOOP 'B' HV87-1218 60 C,H 11 m

HV87-124B NA 34- l 5

2 061-1 RECIRC PUMP 'A' SEAL 43-1004A(CK) NA 15 43  ;

[ NA I e PURGE (XV43-103A - 1 i

SEE PART B, ,

i THIS TABLE) ,

061-2 RECIRC PUMP 'B' SEAL 43-1004B(CK) NA 15 43 PURGE (XV43-1038 - NA 1  ;

- SEE PART B, l THIS TABLE) l 062 DRYWELL H2/02 SAMPLE SV57-150(X-220A) 5 B,H,R,5 11 57 RETURN, N2 MAKE-UP SV57-159 5 B,H,R,5 11 l

(X-220A)

! HV57-ll6 30** B,H,R,S 11

! (X-220A)

SV57-190 5 B,H,R,S 11

, (X-220A)

TABLI 3.6.3-1 ERIMARY CONTAINMENT INSOLATION VALVES NOTATION NOTES (Continued)

21. Automatic isolation signal causes TIP to retract; ball valve closes when '

probe is fully retracted.

27. Isolation barrier remains water filled or a water seal remains in the i line post-LOCA. Isolation valve may be tested with water. Isolation l valve leakage is not included in 0.60 La total Ttpe B & C tests. l 23 Valve does not receive an isolation signal. Valves will be open during Type A test. Type C test not required  !

24. Both isolation signals required for valve closure. I

25. Deleted

26. Valve stroke times listed are maximum times verified by testing per Speci-fication 4.0.5 acceptance criteria. The closure times for isolation valves in lines in which high-energy line breaks could occur are identified with a single asterisk. The closure times for isolation valves in lines which l provide an open path from the containment to the environs are identified .

with a double asterisk. l I

27. The reactor vessel head seal leak detection line (penetration 29A) excess flow check valve is not subject to OPERABILITY testing. This valve will not be exposed to primary system pressure except under the unlikely con-ditions of a seal failure where it could be partially pressurized to reactor pressure. Any leakage path is restricted at the source; therefore, this valve need not be OPERABILITY tested.

28. (DELETED)

29. Valve may be open during normal operation; capable of manual isolation from control room. Position will be controlled procedurally.

30. Valve normally open, closes on scram signal.

31. Valve 41-1016 is an outboard isolation barrier for penetrations X-9A, B and X-44. Leakage through valve 41-1016 is included in the total for penetration X-44 only.

32. Feedwater long-path recirculation valves are sealed closed whenever the reactor is critical and reactor pressure is greater than 600 psig. The valves are expected to be opened only in the following instances:

a. Flushing of the condensate and feedwater systems during plant startup,

b. Reactor pressure vessel hydrostatic testing, which is conducted follow-ing each refueling outage prior to commencing plant startup.

Therefore, s'alve stroke timing in accordance with Specification 4.0.5 is not required.

33. Valve also constitutes a Unit 2 Reactor Enclosure Secondary Containment Automatic Isolation Valve and a Refueling Area Secondary Containment Automatic Isolation Valve as shown in Table 3.6.5.2.1-1 and Table 3.6.5.2.2-1 respectively.

34. Auto isolation signals have been removed from HV-087-124 A/B and 125 A/B.

Valves to be closed with associated circuit breakers locked open during OPCONs 1, 2, and 3.

LIMERICK - UNIT 1 3/4 6-43

JABLE 3.6.3-l (Continusd) .-

PART A - PRIMARY CONTAINMENT ISOLATION VALVES .

C R -

5 g INBOARD OUTBOARD ISOL.

, PENETRATION FUNCTION ISOLATION ISOLATION MAX.ISOL. SIGNALi S), NOTES P&ID ' i c NUMBER BARRIER BARRIER TIME.IF APP. IF APP.

5 (SEC)(26) (20)

N 040G-1 ILRT DATA ACQUISITION 60-2057 NA 11 60 60-2058 NA 11 040G-2 ILRT DATA ACQUISITION 60-2071 NA 11 60 60-2070 NA 11 040H-1 CONTAINMENT INSTRUMENT 59-2005A(CK) NA 59 GAS SUPPLY - HEADER 'A' HV59-229A 7 C,H,S m 042 STANDBY LIQUID CONTROL 48-2F007(CK) NA 48 g (X-Il6) HV48-2F006A 60 29

[ 043B MAIN STEAM SAMPLE HV41-2F084 10 8 41 e- HV41-2F085 10 B 044 RWCU ALTERNATE 41-2017 NA 5,31 41

RETURN 41-2016(X-9A, NA X-9B)

PSV41-212 NA

! 045A(B,C,0) LPCI INJECTION 'A'(B,C,0) HV51-2F041A(B,C, NA 9,22 51 t D)(CK)

HV51-242A(B,C, 7 9,22 D)

HV51-2F017A 38 (B,C,D) t 050A-1 DRYWELL PRESSURE HV42-247B 45 10 42 INSTRUMENTATION ,

l 053 DRYWELL CHILLED WATER HV87-228 60 C,H 11 87 -

l SUPPLY - LOOP 'A' HV87-220A 60 C,H 11 l

HV87-225A NA 35 j

E' TABLE 3.6.3-1 (Continued) .:

PART A - PRIMARY CONTAINMENT ISOLATION VALVES .

i 5 INBOARD OUTB0ARD ISOLATION MAX.TSOL.

ISOL.

SIGNAL (S), P & ID Q PENETRATION FUNCTION ISOLATION NOTES

, NUMBER BARRIER BARRIER TIME.15 APP. IF APP.

i c- (SEC)(26) (20)

. 5 l 054 DRYWELL CHILLED WATER HV87-229 60 C,H 11 87

" RETURN - LOOP 'A' HV87-221A 60 C,H 11 HV87-224A NA 35 l

! 055 DRYWELL CHILLED WATER HV87-222 60 C,H 11 87 SUPPLY - LOOP 'B' HV87-220B 60 C,H 11 HV87-225B NA 35 l 056 DRYWELL CHILLED WATER HV87-223 60 C,H 11 87 RETURN - LOOP 'B' HV87-221B 60 CH 11 i w HV87-224B NA 35 l 2 15 43 m 061-1 RECIRC PUMP 'A' SEAL 43-2004A(CK) NA

, A3 PURGE (XV43-203A - NA 1

• SEE PART B,

, THIS TABLE) 061-2 RECIRC PUMP 'B' SEAL 43-2004B(CK' NA 15 43 PURGE tXV43-2038 - NA 1 SEE PART B, THIS TABLE) 062 DRYWELL H2/02 SAMPLE SV57-250(: -220A) 5 B,H,R,S 11 57 RETURN, N2 MAKE-UP SV57-259 5 B,H,R,S 11 (X-220A)

HV57-216 30** B,H,R,S 11 (X-220A)

SV57-290 5 B,H,R,S 11 (X-220A)

]_ABLE 3.6.3-1 PRIMARY CONTAfiiMENT INSOLATION VALVES NOTATION

[LCLES (Continued)

21. Automatic isolation signal causes TIP to retract; ball valve closes when probe is fully retracted.

22. Isolation barrier remains water filled or a water seal remains in the line post-LOCA. Isolation valve may be tested with water. Isolation valve leakage is not included in 0.60 La total Type B & C tests.

23 Valve does not receive an isolation signal. Valves will be open during Type A test. Type C test not required

24. Both isolation signals required for valve closure.

25. Deleted

26. Valve stroke times listed are maximum times verified by testing per Speci-fication 4.0.5 acceptance criteria. The closure times for isolation valves in lines in which high-energy line breaks could occur are identified with a single asterisk. The closura times for isolation valves in lines which provide an open path from the containment to the environs are identified with a double asterisk.

27. The reactor vessel head seal leak detection line (penetration 29A) excess flow check valve is not subject to OPERABILITY testing. This valve will not be exposed to primary system pressure except under the unlikely con-ditions of a seal failure where it could be partially pressurized to reactor pressure. Any leakage path is restricted at the source; therefore, this valve need not be OPERABILITY tested. l

28. (DELETED) 1

29. Valve may be open during normal operation; capable of manual isolation l from control room. Position will be controlled procedurally.

30. Valve normally open, closes on scram signal,

31. Valve 41-2016 is an outboard isolation barrier for penetrations X-9A, B and X-44. Leakage through valve 41-2016 is included in the total for penetration X-44 only. -

I

32. Feedwater long-path recirculation valves are sealed closed whenever the reactor is critical and reactor pressure is greater than 600 psig. The valves are expected to be opened only in the following instances:

a. Flushing of the condensate and feedwater systems during plant startup,

b. Reactor pressure vessel hydrostatic testin , which is conducted follow- j ing each refueling outage prior to commenc ng plant startup.

Therefore, valve stroke timing in accordance with Specification 4.0.5 is I not required. l

33. Valve also constitutes a Unit 1 Reactor Enclo:ure Secondary Containment Automatic Isolation Valve and a Refueling Area Secondary Containment Automatic Isolation Valve as shown in Tatle 3.6.5.2.1-1 and Table 3.6.5.2.2-1, respectively.

34. Isolation signal causes recombiner to trip; valve closes when recombiner is not operating.

35. Auto isolation signals have been removed from HV-087-224 A/B and 225 A/B.

Valves to be closed with associated circuit breakers locked open during OPCONs 1, 2, and 3.

LIMERICK - UNIT 2 3/4 6-43