ML20127G103

From kanterella
Jump to navigation Jump to search
TS Section 3/4 1-19 Re SR for Standby Liquid Control Sys & 3/4 1-20 Re Temp of Pump Suction Piping in Standby Liquid Control Sys
ML20127G103
Person / Time
Site: Limerick  Constellation icon.png
Issue date: 01/12/1993
From:
PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC
To:
Shared Package
ML20127G098 List:
References
NUDOCS 9301210146
Download: ML20127G103 (5)
v • d • e


Text

-..

f

.A i

ATTACllMEllT 2  !

LIMERICK GENERATING STATIOli UllITS 1 AND 2 Docket Nos. 50-352 50-353 License Nos. NPF-39 NPF-85 REVISED PROPOSED TECllllICAL.

SPECIFICATI0!ls CilANGES No. 90-20-0, Rovision 1 e

List of Affected Pago Changon E0i t .1 Unit 2 3/4 1-19 3/4-'1-19 3/4 1-20 3/4 1 1 2

PDR D CW 050

' P. ,.

-. . - ,- - . . - . . . - . - n.

4 REACTIVITY CONTROL SYSTEMS 3/4.1.5 STANDBY LIQUID CONTROL _ SYSTEM

_llM1 TING _ CONDITION FOR_0PERATION ,

3.1.5 The standby liquid control system consisting of a minimum of two pumps  !

and corresponding flow paths, shall be OPERABLE. l APPLICABIL11Yt OPERATION CONDITIONS 1, 2, and 5*

ACTION:

a. In OPERATIONAL CONDITION 1 or 2: l
1. With only one pump and corresponding explosive valve OPERABLE, restore one inoperable pump and corresponding explosive valve to OPERABLE status within 7 days or be in at least HOT SHU1DOWN within the next 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />.
2. With standby liquid control system othe N se inoperable, restore the system to OPERABLE status within 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> or be in ,

at least HOT SHU100WN within the next 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />. .

b. In OPERATION CONDITION 5*:
1. With only one pump and corresponding explosive valve OPERABLE, restore one inoperable pump and corresponding explosive valve to OPERABLE status within 30 days or insert all insertable control rods within the next hour.
2. With the standby liquid control system otherwise inoperable, insert all insertable control rods within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br />.

SURVEILLANCE REQUIREMENTS 4.1.5 The standby liquid control system shall be demonstrated OPERABLE:

a. At least orr.e per 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> by verifying that:
1. The temperature of the sodium pentaborate solution is within the limits of figure 3.1.5-1.
2. The available volume of sodium pentaborate solution is at least 4537 gallons.
3. The temperature of the pump suction piping is greater than or equal-to 70'F.

LIMERICK - UNIT 1 3/4-1-19

,u , . _ .. . , - , . , , . - . , . , , . _ . , . ,, v_ ,, ,n w, ,. , , , , . . . . _ , +,.e , . , . .

... . ' . REACilV!1Y CONTROL SYSTEMS SU,R,VJ,JllANCE REQUIR[MENTS (Continued)

b. At least once per 31 days by:
1. Verifying the continuity of the explosive charge.
2. Octermining by chemical analysis and calculation
  • that the available weight of sodium pentaborate is greater than or equel .

to 5389 lbs; the concentration of sodium pentaborate in solution is less than or equal to 13.8's and within the limits of Figure 3.1.5-1 and; the following equation is satisfied:

C x 0 21 13'$ wt. 86 gpm where C = Sodium pentaborate solution (% by weight)

Q = Two pump flowrate, as datermined per surveillance requirement 4.1.5.c.

3. Verifying that each valve.(manual, power-operated, or automatic) in the flow path that is not locked, sealed, or otherwise secured in position, is in its correct position.
c. Demonstrating that, when tested pursuant to Specification.4.0.5, the minimum flow requirement of 41.2 gpm per pump at a pressure of greater than or equal to 1190 psig is met.
d. At least once per 18 months'during shutdown by:
1. Initiating at least one of the standby liquid control system loops, including an explosive valve,-and verifying that a flow path from the pumps to the reactor pressure vessel is available by pumping demineralized water into the reactor vessel. The replacement charge for the explosive valve shall be from the same manufactured batch as the one fired or from another batch which has been certified by having one of the batch success-fully fired. All injection loops shall be tested in 3 operating cycles.
2. Verify all heat-traced piping between storage tank and pump suction is unblocked.**

l

  • This test shall also be performed anytime water or boron is added to the solu-tion or when the solution temperature drops below 70*F, within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> after water i or boron addition or solution temperature is restored. I
    • 1his test shall also be performed whenever suction piping temperature drops below 70*F, within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> af ter solution temperature is restored.

LIHERICK - UNIT 1 3/4 1-20

. - - - - - - - . - l

g

,'jEPCTIVITY CONTROL SYSTEMS' 3/4.1.5 STANOBY LIQUID CONTROL SYSTEM LIMlTINGdONDITIONFOR_0PERAT10N 3.1.5 The standby _ liquid control system consisting of a minimum of two pumps and. corresponding flow paths, shall be OPERABLE.

APPLICABILITY:-

OPERATION CONDITIONS 1, 2, and 5*

ACTION 3

a. In OPERATIONAL CONDITION 1 or 2:
1. With only one_ pump and corresponding exple;ive valve OPERABLE, restore one inoperable pump and corresponding explosive valve to

. OPERABLE status within 7 days or be in at least HOT SHUTDOWN within the next 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />. .

2. With standby liquid control system otherwise inoperable, restore the system to OPERABLE status within 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> or be in at least HOT SHUTDOWN within the next 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />,
b. In OPERATION CONDITION 5*:
1. With only one pump and corresponding explosive valve OPERABLE, restore one inoperable pump and corresponding' explosive valve to OPERABLE status within 30 days or insert all insertable control rode, within the next hour.
2. With the standby liquid control system otherwise inopsra'ie,u insert all insertable control rods within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br />.

SURVEILLANCE 4QllIREMENTS 4.1.5 The standb; r;m ' control system shall be demonstrated OPERABLE:

a. At least once per 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> by verifying that:
1. The temperature of the sodium pentaborate solution is within the limits of Figure 3.1.5-1.
2. The available volume of sodium pentaborate solution is at least-4537 gallons.
3. The temperature of the pump suction piping is greater than or.

equal to 70'F.

LIMERICK - UNIT 2 3/4 1-19 L

w m . . . . . -- * - - + - . y

4 BEACTIVITY CONTROL SYSTEMS S'URVEILLANCE REQUIREMENTS (Continued)

b. At least once per 31 days by: ,
1. Verifying the continuity of the explosive charge, r
2. Determining by chemical analysis and calculation
  • that thi available weight of sodium pentaborate is greater than or equal-to 5389 lbs; the concentration of sodium pentaborate in solution is less than or equal to 13.8's and within the limits of.

Figure 3.1.5-1 and; the following equation is satisfied:

C___ x 0 21 13% wt. 86 gpm where ,

C = Sodium pentaborate solution (% by weg.)

Q = Two pump flowrate, as determined per surveillance requirement 4.1.5.c.

3. Verifying that each valve (manual, power-operated, or automatic) in the flow path that is not locked, sealed, or otherwise secured in position, is in its correct position,
c. Demonstrating that, when tested pursuant to Specification 4.0.5, the minimum flow requirement of 41.2 gpm per pump at a pressure of greater e than or equal to 1190 psig is met. ,
d. At least once per 18 months during shutdown by:
1. Initiating at least one of the standby liquid control system loops, including an explosive valve, and verifying that a flow path from the pumps to the reactor pressure vessel is available by pumping demineralized water into the reactor vessel. The replacement charge for the explosive valve _shall.be from the same 'aanufactured batch as the one fired or from another batch whi;n has been certified by having one of the batch success--

fully fired. All injection loops shall be tested in.3 operating cycles.

2. Verify all heat-treated piping between storage tank and pump suction is unblocked.**
  • This test shall also be performed anytime water or boron is added to the solu-tion or when the solution temperature drops below 70*F, within'24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> after water or boron addition or solution temperature is restored.
    • This test shall also be performed whenever suction piping temperature dropi below

-70*F, within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> after solution temperature is restored.

. LIMERICK - UNIT 2- _3/4 1-20 e

Retrieved from "https://kanterella.com/w/index.php?title=ML20127G103&oldid=2902313"