ML20155G905

Proposed Tech Spec Changes Re Category a & B Battery Surveillance Requirements for Float Voltage & Specific Gravity

ML20155G905
Person / Time
Site:	Fermi
Issue date:	05/05/1986
From:	DETROIT EDISON CO.
To:
Shared Package
ML20155G903	List: ML20155G898 ML20155G905
References
NUDOCS 8605070210
Download: ML20155G905 (5)

Text

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A3-1 Attachment Three Proposed Amendment Channes Panes Affeg_ted ,

1) 3/4 8-12, see mark-up sheet #1 and #2

2) B 3/4 8-1, see mark-up sheet #3 and #4 8605070210 860005 1 PDR ADOCK 0500!

P

, Attechment 3, Sheet 1 l

l l

TABLE 4.8.2.1-1 BATTERY SURVEILLANCE REQUIREMENTS CATEGORY A II) CATEGORY B II)

Parameter Limits for each Limits for each A11owableI3) designated pilot connected cell value for each cell connected cell l Electrolyte - > Minimum level > Minimum level Above top of g Level indication mark, indication mark, plates, and < %" above and < %" above and not

maxiium level anxiium level overflowing indication mark indication mark FloatVoltageD) l g volts g g volts (4) >j.'fvolts Not more than 0.020 below the Specific 1. No average of all Gravity I$)/(0) > M 66I0)

~ 1 M 4G- connected cells l . li S" Average of all Average of all connected cells connected cells

• I M .2co s 1M l.19 0 l

l f~erm.E - (),nk 0.- NA" b ~ IR.

[ttachment 3, Sheet 2

'TArbLE A. $. A I ~ l &$I!"N

• T'A6LE NOTATICAJ i

(1)For any Category A parameter (s) outside the limit (s) shown, the battery any be considered OPERABLE provided that within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> all the Category B esasurements are taken and found to be within their allowable values, and provided all Category A and B parameter (s) are restored to within limits within the next 6 days.

(2)For any Category B parameter (s) outside the limit (s) shown, the battery say be considered OPERABLE provided that the Category B parameters are within their allowable values and provided the Category 8 parameter (s) are restored to within limits within 7 days.

J (3)Any Category B parameter not within its allowable value indicates an inoperable battery. ,

(4)May iMr corrected for average electrolyte temperature.

(5) Corrected for electrolyta taaperature and level. .-

l (5)0r battery charging current ts less than 2 ampares when on float charge.

(1) Fon the reMAthder ofik first {stelcycle wrb7 Ma%v4 Affer- t/w. .fesh rt.

)9)fue(&y vistan.1tw ifF7ambVoHny replacemed bML* L de&s sud.anAllnumbit tories notinsinJIed,YAlues, y be.fw-estassef an) entsamer s(r)

Parameter tielts for each Liefts for each A11ouebleW <

ensignoted pilot amaneeses cell alue for sach es11 sonnected cell m et settese g a.m wits g a.as solu W e 2.as wits j (6) Sr WNMdet' ef.fie fist fselcycle im+s7 N.she.rb af;ee fAa . fir.gt l- rt seel ond*y 1$.e. Spurf e Grun.wh Linoh sud 4//navble Vdues i

$cn{- Gwis 4 freplacemesHush' eves nn.re rut ins /ml/ef arqbe,:

CAffmey AU) CATE80eY S(r)

Parameter Lielts for each Liefts for each AllowebleW designated pilot eennected tell selve for each cell eennected cell

• Get more then e.ero below the Specific (s) everage of all Gravity 1 1.235(6) g1.230 sonnected ce11s Average of all Average of all tennected sells eennected tells e 1.840 g 1.330(6)

Fer ml. - ibu't 2 3/+ 8 - I2 et

Attachment 3, Sheet 3 ELECTRICAL POWER SYSTEMS BASES A.C. SOURCES. D.C. SOURCES and ONSITE POWER OISTRIBUTION SYSTEMS (Continued)

The surveillance requirements for demonstrating the OPERABILITY of the unit batteries are in accordance with the recommendations of Regulatory Guide 1.129 " Maintenance Testing and Replacement of Large Lead Storage Batteries for Nuclear Power Plants," February 1978, and IEEE Std 450-1972, "IEEE Recommended Practice for Maintenance, Testing, and Replacement of Large Lead Storage Batteries for Generating Stations and Substations."

Verifying average electrolyte temperature above the minimum for which the battery was sized, total battery terminal voltage on float charge, connection f resistance values and the performance of battery service and discharge tests ensures the effectiveness of the charging system, the ability to handle high discharge rates and compares the battery capacity at that time with the rated capacity.

Table 4.8.2.1-1 speciffes the nomal limits for each designated pilot cell and each connected cell for electrolyte level, float voltage and specific cravity. The limits for th M gravity, greater than @olts e designated and 0.015 below pilotthecells float voltage manufacturer's and specific full charge

/ specific gravity or a battery charger current that had stabilized at a low f value, is characteristic of a charged cell with adequate capacity. The normal i

limits for each connected cell for float voltage and specific 9ravity, greater i k thma4-tevolts and not more than 0.020 below the manufacturer s full charge specific gravity with an average specific gravity of all the connected cells l

not more than 0.010 below the manufacturer's full charge specific gravity, ensures the OPERABILITY and capability of the battery.

Operation with a battery cell's parameter outside the normal limit but

,within the allowable value specified in Table 4.8.2.1-1 is permitted for up to 7 days. During this 7-day period: (1) the allowable values for electrolyte level ensures no physical damage to the plates with an adequate electron transfer capability; (2) the allowable value for the average specific gravity of all the cells, not more than 0.020 below the manufacturer's recommended . full charge specific gravity ensures that the decreat.e in rating will be less than e l

the safety margin provided in sizing; (3) the allowable vclue for an individual cell's specific gravity ensures that an individJa1 cell's specific gravity l will not be more than 0.020 below the manufacturer's full charge specific gravity and that the overall capability of the battery will be maintained within an acceptable limit; and (4) _ allowable value for an individual cell's float voltage, greater than . ' olts, ensures the battery's capability to perform its design function. .

2.07 ,

L FERMI - UNIT 2 B 3/4 8-2 .

Attachment 3, Sheet 4 f54.ses A . e. eko-a1. 6.e. Bewca9 sattkrik %en dM.Sy d. % y Fookies(7) ass. (a) ef Ta.4le 4. r. et .1- / uk A kk Ned > Yor thE remoder'of YAa.fNt -fk[eycje.

& 'nNed-t &r ffe $ tat refuff & > b x.9wam

E if teplacs bc.b&erw.c a.re. >2xrt fAed.

Foo&nok 20 *~4(8): *f Table 4.8.2.1-1 sMe.sff

• the nomal limits for each designated pilot cell

, and each connected cel1 for el'ectrolyte level, float voltage and specific gravity. The Ilmits for the designated pilot cells float voltage and specific gravity, greater than 2.16 volts and 0.015 below the manufacturer's full charge specific gravity or a battery charger current that had stabilized at a low value, is characteristic of a charged cell.with adequate capacity. The normal limits for each connected cell for float voltage and specific p avity, greater than 2.16 volts and not more than 0.020 below the manufacturer s full che specific gravity with an average specific p avity of all the connected cel s not more than 0.010 below the manufacturer s full charge specific gravity.

ensures the OPERABILITY and capability of the battery.

Operation with a battery cell's parameter outside the nomal limit but

. within the allowable value specified in

~4DfhCNES (7) M iib # f Table 4.8.2.1-2 is permitted for up to

,7 days. During this 7-day p'riod:e (1) the allowable values for electrolyte level ensures no pitysical danap to the plates with an adequate electron transfer capability; (2) the a lowable value for the average specific gravity of all the cells, not more than 0.020 below the manufacturer's recommended full charge specific gravity ensures that the decrease in rating will be less than the safety margin provided in sizing; (3) the allowable value for an individual cell's specific gravity ensures that an individual cell's specific gravity l will not be more than 0.020 below the manufacturer's full charge specific gravity and that the overall capability of the battery will be maintained l within an acceptable limit; and (4) the allowable value for an individual -

cell's float voltage, areater than 2.10 welts, ensures the bettery's l capability to perform Its design function. .

i Fe w -ti d t A e.2 s/4 8 - 4 a,

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