ML20077F216
| ML20077F216 | |
| Person / Time | |
|---|---|
| Site: | Vogtle  |
| Issue date: | 12/06/1994 |
| From: | GEORGIA POWER CO. |
| To: | |
| Shared Package | |
| ML20077F215 | List: |
| References | |
| NUDOCS 9412130314 | |
| Download: ML20077F216 (4) | |
Text
-
0"'l
&ls B&G AftLicABLG 1b 0 NIT 21 OULY emc>
Q 1
EMERGErdct coRG coaue sisrEMS H CM DCOL SysrsM 3/4. 6. 5 ECCS REctRc.0Lknod Ft.0ID f LIMITING CONDITION FOR OPERATION The reairt.;ulation fluid pH control system shall be OPERABLE with ;.;ffici:n: ::1::di = ph::ph::: ::y:::1: available in the 3.5.5 storage baskets in the containment building.
APPLICA15ILITY: MODES 1, 2, 3, and 4.
With the recirculating fluid pH centrol sycrem INOPERABLE, restore the system to CPERABLE status within "12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> or be in ACTION:
6 houra; restore the at least HOT STANDBY within the next recirculating fluid pH control system to OPERABLE status within the next 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> or be in COLD SHUTDOWN within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.
SURVEILLANCE REQUIREMENTS During each refueling outage the recirculating solution pH 211; 4.5.5 control system shall be demonstrated operable by 11:
verifying that thes a.
Three (3) storage baskets are in place, have maintained their integrity, and b.
k
- h th:t----
are filled with ;zieedi.:: ph::ph;;; ::y: :10
-the 12 c:1 1: 5::w:;r. th: indi::::d fill-r rh:-
c.
a,Io(tLI of
,- - m hWG4'n Ny & f.}am0S O CUWC fcet card l% 6{
otm)$ cab 0 N
3
-ac secersar,p#fmja pgo,.ap.pm) 2130314 941206
-N.
A ADOCK 05000424 p
\\lccsTLG UMIT3 - I & L 3lq. 5 -ll
WO OU Y I
y
[MERGEtJC1 CDRG CLCLING S1Sf6MS 3/4. 6. 5 ECCS RECJRC.0LA170A) FLulD fH CatlXCL SYS
\\
LIMITING CONDITION FOR OPERATION The recirculation fluid pH control system shall be OPERABLE with ;ffict:n: ::i::di= ph::;h::: ::3^:::1: available in the 3.5.5 storage baskets in the containment building.
APPLICABILITY: MODES 1, 2, 3, and 4.
With the recirculating fluid pH control system INOPERABLE, restore the system to OPERABLE status within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> or be in ACTION 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />; restore the at least HOT STANDBY within the next recirculating fluid pH control system to CPERABLE status within 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> or be in COLD SHUTDOWN within the following the next 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.
)
SURVEILLANCE REQUIREMENTS During each refueling out. age the recirculating solution pH control system shall be demonstrated operable by ficuell;-
4.5.5 verifying that the
)
a.
Three (3) storage baskets are in place, have maintained their integrity, and b.
I f
are filled with tri edi w ph ;ph.t
- 1^:tti: :ech thet c.
~ --
- t.u wn i 3 t= :: th ineiot >
1 h
he% nA;-as (aao wuqcu)and n,mpas(a,o cubic [eeO of *isodium pospafe cryfals (t4 Pq.la4o,po 3
~
Q
/
VeerL6 onits - I & 4 a/,
s-fi
I Past a CHebit EMERGENCY CORE COOLING SYSTEMS BASES
./
h' J
nued),f_
REFUELING WATER STORAGE TANK (Con 1.5 i
The limits on contained water volu_me fand baron concentration of the RWST also ensure a pH value of between 2no 10.5 for the solution recirculated within containment after a LOCA.
This pH band minimizes the evolution of iodine and minimizes the effect of chloride and caustic stress corrosion on mechanical systems and components.
.ak.s.5 Eccs escmcoumw) fLOU) pH Cwne0L SysrEM '
a, $ob Of The OPERABILITY of the ECC3 recirculation fluid pH control system ensures that there is between 11,484 pounds (220 cubic feet) and 14,612 pounds (260 cubic feet) of trisoedum phosphate crystals 12 H O
- 4 NaOH) availkble in containment to raise the pH of (Na3PO4*
2 the recirculating solution into the range of 7.5 to 10.5.
This pH rnn36 maintains iodine retention in solution and minimizes the potential for chloride induced stress corrosion cracking of austenitic stainless K
verifica+ ion ht +he stora e inskets contain he required amoud of trisex&m phoykt (s accwp 'shed h
u)VerifyIG fhol 4he trisocGam phospho +e lael is hdweao Yne inoliccdeol ((ll marks en he badefs.
V33TLE. UN!T! - 3 & 2 8 3/4 5-3
e-ASE l Cdlldet JMERGENCY CORE COOLING SYSTEMS BASES REFUELING WATER STORAGE TANK (Continued) ("~
The limits on contained water volume a'nd boron concentration of the RWST also ensure a pH value of between 8.0G6610.5 for the solution recirculated within containment after a LOCA.
This pH band minimizes the evolution of iodine and minimizes the effect of chloride and caustic stress corrosion on mechanical systems and components.
.sh.s.s Eccs acacows n.ow pt coaxk sysren.
a bola lf The CPtJWBILITY f the ECC5 recirculation fluid pH control systent ensures that there i between 11,484 pounds (220 cubic feet) and 14,612 pounds (250 cubic feet) of trisodium phosphate crystals 12 H O
- 4 NaOH) available in containment to raise the pH of (Wa3PO4*
2 the recirculating solution into the range of 7.5 to 10.5.
This pH rarge maintains iodine retention in solution and minimises the potential for chloride indSuc d stress corrosion cracking of austenitic stainless verificution +lat 4he storage b2skets contain
- 1.
e-
% rep \\ red amoud of +risodiumphosynte is acceplished
& VerifyIG # af +he trisoSum phospho +e level is between Yne Incliccheol fiU mark.s on be baskefs.
I i
VZTLE VHT! - 1 & 2 B 3/4 5-3
.