ML20211Q184

Proposed Tech Specs Revising SRs & Bases for Div I Battery Sys to Agree with Design of New Battery Replacement

ML20211Q184
Person / Time
Site:	Fermi
Issue date:	09/10/1999
From:	DETROIT EDISON CO.
To:
Shared Package
ML20211Q180	List: ML20211Q184 NRC-99-0072, Application for Amend to License NPF-43,revising SRs & Bases for Div I Battery Sys to Agree with Design of New Battery Replacement
References
NUDOCS 9909150007
Download: ML20211Q184 (4)

Text

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ENCLOSURE 3 TO J

NRC-99-0072

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FERMI 2 NRC DOCKET NO 50-341 OPERATING LICENSE NPF-43 REQUEST TO REVISE TECHNICAL SPECIFICATIONS FOR THE DIVISION I 130/260 VDC BATTERY REPLACEMENT PROP 0 SED TECHNICAL SPECIFICATION MARKED-UP PAGES l

9909150007 990910 PDR ADOCK 05000341 l

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DC Sources-Operating 3.8.4 SURVEILLANCE REQUIREMENTS SURVEILLANCE FREQUENCY SR 3.8.4.1 Verify battery terminal voltage is : 100 V 7 days m

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Dhi;ier. II on float charge, dl SR. 3.8.4.2 Verify no visible corrosion at battery 92 days terminals and connectors.

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l Verify each battery cell to cell and fj) terminal connection resistance is s 1.5E 4 ohm.

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d SR 3.8.4.3 Verify battery cells, cel s

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racks show no visual indi sical Q

damage or abnorma gri t could j

degrade batter anc kY

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SR 3.8.4.4 Remove' ble"c"trro"sion and verify battery 18 months cell to C

' terminal connections are coated wit corrosion material.

j SR 3.8.4.5 Verify each battery cell to cell and 18 months terminal connection resistance s 1.5E 4 ohm.

SR 3.8.4.6 Verify each required battery charger 18 months supplies & "iuitinn T-

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= 100 amps at a 124.7 V for a 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br />.

(continued) l FERMI UNIT 2 3.8 17 Revision 7.

06/18/99

e Battery Cell Parameters 3.8.6 SURVEILLANCE REQUIREMENTS (continued)

SURVEILLANCE FREQUENCY SR 3.8.6.2 Verify battery cell parameters meet 92 days Table 3.8.6 1 Category B limits.

M Once within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> after battery discharge

< 105 V J

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M Once within Ms 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> after 0#[+(MpLg,%

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overcharge

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upq SR a.8.6.3 Verify averagelelectrolyte temperature of 92 days representativecellfis > 60*F.

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l FERMI UNIT 2 3.8 24 Revision 2.

01/18/99 -

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sj Battery Cell Parameters B 3.8.6 BASES ACTIONS (continued)

Continued operation is only permitted for 31 days before

'Jattery cell parameters must be restored to within

' Category A and B limits. Taking into consideration that, while battery capacity is degraded, sufficient capacity exists to perform the intended function and to allow time to fully restore the battery cell parameters to normal limits, this time is acceptable for operation prior to declaring the DC batteries inoperable.

IL1 When any battery parameter is outside the Category C limit for any connected cell, sufficient capacity to supply the maximum expected load requirement is aot ensured and the corresponding DC electrical powe ystem must be declared inoperable. Additionally, ot tially extreme conditions.-such as.not c ng Required Actions of Condition A within the r d,CompleMon Time or average below 60*F. also arff,ause Wl,esentat% cells falling electrolyte temperature o f g rimmediately declaring the associated DC electfictijpowerlsubsystem inoperable.

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SURVEILLANCE SR' 1_B.6?

REQUIREMENTS pgy

' Sis SRWinr1Nes that Category A battery cell parameters are cesistelttiwith IEEE 450 (Ref. 3), which recommends regular batteryd'stspections (at least one per month) including voltagelf specific gravity, and electrolyte temperature of pilot' cells.

SR 3.8.6.2 The quarterly inspection of specific gravity and voltage is consistent with IEEE 450 (Ref. 3). In addition, within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> of a battery discharge < 105 V or a battery overcharge : S Y fr-Ci^:i:irr xd > 145 V,fe Ci;icirr 'E the battery must be demonstristed to meet Category B limits. Transients, such as motor starting transients, which may momentarily caus~e battery voltage to drop to s 105 V do not constitute a battery discharge provided the battery terminal voltage and float current l FERMI UNIT-2 B 3.8.6-3 Revision 2 01/18/99 E