ML18051B490

Proposed Changes to Tech Spec Table 3.17.4,deleting Item 3 Re Operability Requirements for HPSI Flow Instruments

ML18051B490
Person / Time
Site:	Palisades
Issue date:	07/30/1985
From:	CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.)
To:
Shared Package
ML18051B489	List: ML18051B488 ML18051B490
References
NUDOCS 8508060157
Download: ML18051B490 (2)

Text

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ATTACHMENT Consumers Power Company Palisades Plant

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PROPOSED TECHNICAL SPECIFICATION PAGE CHANGES .

July 30, 1985 1 Page 8508060-157 850730' . \ .-..

PDR

• ADOCK 050P0255 ,,_ . . I P . *. -. ~*** ** PDR.  !~J IC0785-0255-NL04

Table 3.17.4 Instrumentation Operating Requirements for

_________ - --Other Safety Feature Functions-Minimum Minimum Permissible Operable Degree of Bypass No. Functional Unit Channels Redundancl'.: Conditions 1 SIRW Low-Level 2(b) l None Switches 2 6T - Power 3(c) 1 None Comparator 3 (Deleted) 4 Air Cooler Service 1 None None Water Flow Instr.

5 Primary and 1 None NA Secondary Rod Insertion and Out-of-Sequence Monitors 6 Fuel Pool Bldg 1 None As Requested Under Crane Interlocks AdminisUytive Control 7 Start-Up Channels 2 l(d) Not Required Above

-4 10 % of Rated Power (a) Crane shall not be used to move material past the fuel storage pool unless the interlocks are available.

(b) One of the inoperable channels must be in the tripped condition.

(c) If only 2 channels are operable, load shall be reduced to 70% or less of rated power.

(d) Minimum operable channels shall be one (1) and minimum degree of redundancy is zero (O) if shutdown neutron power levels indicated on the log range channels are greater than 3 times the lowest decade in which neutron visibility can be confirmed. Neutron visibility will -be confirmed through observation of reactivity changes on neutron power level (including a l/M plot during reactor startup) and comparing the observed changes to the changes noted on previous similar startups.

Instrumentation operability will also be verified by comparison among the three operable channels to ensure their individual responses are in agreement.

Proposed 81 TSP0785-0255A-NL04