ML19305A907

LER 80-004/03L-0:on 800205 During Plant Startup,Reactor Water Conductivity Increased & Exceeded Tech Spec Limits. Caused by Resin Injection.Reactor Was Shut Down & Primary Coolant Chemistry Brought within Tech Spec Limits

ML19305A907
Person / Time
Site:	Peach Bottom
Issue date:	03/06/1980
From:	Cooney M PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML19305A901	List: ML19305A900 ML19305A907
References
LER-80-004-03L-01, LER-80-4-3L-1, NUDOCS 8003180567
Download: ML19305A907 (1)

Text

NRC FC*1M 366 - U. S. NUCLE AR REGULATCHY COMMISSION unit 3 LICENSEE EVENT REPORT Report hw. 3-80-h/3L CONTRCL BLOCK: l l l l l l l (PLf!ASE PRINT OR TYPE ALL REQUIRED INFORMATION) .

. I 6 O i 8 9 le l A lP lB UCENSEE CODElS l 3 l@16 Ol Ol 14 UCENSE-l0NUMSER l Ol Ol 0l 0l -l Ol 0lh 2b 26 4 lTYPE UCENSE 1l JO1l 1l57 CAT l

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EVENT OESCRIPTION AND PROSA8LE CONSEQUENCES h O 2 l During the startup of Unit 3, the reactor water conductivity increased l Lo- -L31 1 and exceeded Tech. Spoc. 3.6.B.3.(a) limit of 10 umho/ca. The reactor l 0 4 I water conductivity peaked at 12.6 umho/cm and was greater than 10 for l

@l approvimately h.5 hours5.787037e-5 days <br />0.00139 hours <br />8.267196e-6 weeks <br />1.9025e-6 months <br />. During the reactor startup and conductivity l 0 6 l spike, the reactor pressure rammined below $20 psig. Due to the short i f0TTl I period of tl-is occurrence and the low reactor pressure, no effects are l I 5TO I expected to the materials in the primary system boundary. I h E S 8C E COMPONENT CODE SUS ode S E FOTF1 l H l G l@ [B,j@ [ C_j @ l D l E l M l I l N l I l@ [ z_j@ [ Zj @

7 8 9 to 11 12 13 18 19 20 SEQUENTIAL OCCURRENCE REPORT REVISION EVENT YEAR REPORT NO. CODE TYPE NO.

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CAUSE OESCRIPTION AND CORRECTIVE ACTIONS i gl The reactor water conductivity increase is believed to be due to resin l i i l injection. The mechnnisa for the resin injection is unknown but is be- I

, 7 l lieved to be from the condensate filter /demineralizer system. Upon ex- I gl ceeding the Tech. Spec. conductivity limit the reactor was shutdown and l gl the primary coolant chemistry was brought within limits using the RWCU. l 7 0 9 80 ST $  % POWER oTHER STATUS OlSCO RY DISCCVERY DESCRIPTION

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NAMF O.F. PR..E.PA.RE. // p. y_.M. /__J. Cooney PHONE:

(215) 841-5020 o

8'0031 80

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