ML052730023

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Tech Spec Pages for Amendment 194 Regarding Technical Specification Improvement to Revise Control Rod Scram Time Testing Frequency Using the Consolidated Line Item Improvement Process
ML052730023
Person / Time
Site: Columbia Energy Northwest icon.png
Issue date: 09/29/2005
From:
NRC/NRR/DLPM
To:
Benney B, NRR/DLPM, 415-3764
Shared Package
ML052730212 List:
References
TAC MC6878
Download: ML052730023 (2)


Text

I

- -- K Control Rod Scram Times 3.1.4 SURVEILLANCE REQUIREMENTS SURVEILLANCE FREQUENCY SR 3.1.4.2 Verify, for a representative sample, each 200 days tested control rod scram time is within the cumulative I limits of Table 3.1.4-1 with reactor steam operation in dome pressure > 800 psig. MODE 1 SR 3.1.4.3 Verify each affected control rod scram time Prior to is within the limits of Table 3.1.4-1 with declaring any reactor steam dome pressure. control rod OPERABLE after work on control rod or CRD System that could affect scram time SR 3.1.4.4 Verify each affected control rod scram time Prior to is within the limits of Table 3.1.4-1 with exceeding reactor steam dome pressure > 800 psig. 40% RTP after work on control rod or CRD System that could affect scram time AND Prior to exceeding 40%

RTP after fuel movement within the reactor pressure vessel Columbia Generating Station 3.1.4- 3 Amendment rho. 1 l9-,<9, 194 1

Control Rod Scram Times 3.1.4 Table 3.1.4-1 Control Rod Scram Times


NOTE-------------------------------------

Enter applicable Conditions and Required Actions of LCO 3.1.3. "Control Rod OPERABILITY." for control rods with scram times > 7 seconds to notch position 5. These control rods are inoperable, in accordance with SR 3.1.3.4, and are not considered "slow."

SCRAM TIMES(a)(b) (seconds)

WHEN REACTOR STEAM DOME PRESSURE NOTCH POSITION > 800 psig 45 0.430 39 0.868 25 1.936 5 3.497 (a) Maximum scram time from fully withdrawn position, based on de-energization of scram pilot valve solenoids as time zero.

(b) Scram times as a function of reactor steam dome pressure, when

< 800 psig, are within established limits.

Columbia Generating Station 3.1.,1-/l Amendment hNo. +44 16i91