ML20196B823

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Proposed Tech Specs,Removing Specific Load Profiles for Each Dc Battery
ML20196B823
Person / Time
Site: LaSalle  Constellation icon.png
Issue date: 11/29/1988
From:
COMMONWEALTH EDISON CO.
To:
Shared Package
ML20196B820 List:
References
NUDOCS 8812070042
Download: ML20196B823 (6)
v • d • e


Text

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2 ATTACBIRT_C EROPOAAP.EAGE_ CHANGES TO THE z

TECBICAL. 4EXCif1CATIGLTDR_DEEAATING LITAMBE8_NPF-11 AMD.J&ll REYJ5ED PAGES:

MPr-11 NEE-ll 3/4 8-16 3/4 8-15 3/4 8-17 3/4 6-16 l

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ELECTRICAL POWER SYSTEM _S SURVEILLANCE REQUIREMENTS (Continued)

Wb

2. <

P b. At least once per 92 days and within 7 days after a battery discharge w

Og with battery voltage below 110 volts, or battery overcharge with 3 battery terminal voltage above 150 volts, by verifying that:

A6 d j :t 1. The parameters in Table 4.8.2.3.2-1 meet the Category B limits, 0 e t-yW n 2. There is no visible corrosion at either terminals or connectors, z a u or the connection resistance of these items is less than 150 x 0<w5 10 8 ohm, and I w 3 tt *0

$sT U 3. The average electrolyte temperature of at least 10 connected

$ cD cells is above 60*F.

4 M c. At least once per 18 months by verifying that:

n fg34g$ 1. The cells, cell plates and battery racks show no visual

, indication of physical damage or abnormal deterioration, t

2. The cell-to-cell and terminal connections are clean, tight, free of corrosion and coated with anti-corrosion material, O 3. The resistance of each cell and terminal connection is less than or equal to 150 x 10 5 ohm, and l
k. The er will supply at least 200 = = = M=

division 1, 75 amperes nN4 M Tand 50 amperes for d % 6. ; .5 a minimum of 130 volts for T-teen

  • hag
d. At least once per 18 months, during shutdown, by verifying that 4&Muha+

4: he battery capacity is adequate to supply and maintain in OPERABLE status all of the actual emergency loads for WNr= 240 mtN%TES design cycle when the battery is s bjected to a battery service test, or OR SIMMLATED

2. he battery capacity is adequate to supply a dummy load, which ified to be greater than the actual emergency loa the foil rofile while maintaining the battery te
  • a voltage greater tha equal to 105 volts.

a) Division 1,greteQanor a to:

1) 483.4 ampe ortie-first60 seconds,
2) 251. . eres for the ne b l4 minutes, s
3) .7 amperes for the next 15 minutes O 5) 151.7 amperes for the r. ext 30 minuPes.u nd 83.7 amperes for the last 180 minutes.

LA SALLE - UNIT 1 3/4 8-16 Amendment No. 18

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?LECTRICAL POWER SYSTEMS i

SURVEILLANCE REOUIREMENTS (Continued) I Division 2, greater than or equal to:

433.5 amperes for the first 60 second ,

2) 237.6 amperes for the iext 14 minptis,
3) 7.6 amperes for the next 15 3 inutes, and
4) 14 .~ amperes for the next 3 Y minutes, and
5) 54.4 moeres for the lasi.20 minutes.

c) Division 3, greater than equal to*: I

1) 58.4 amperes f>f he first 60 seconds,
2) 11.1 ampere der th'e gext 239 minutes.

d) Unit 2 0 4 on 2, greater tbn or equal to:

1)
  • B.5 amperes for the first 60sseconds, .
2) 237.6 amperes for tht next 14 mihtes, a 177.6 amperes for the next 15 minu it
4) 141.6 amperes for the next 30 minutes, nd

( / 5) 54.4 smperes for the last '80 minutet. ,

e. At least once per 60 months, during shutdown, by verifying that the

('~ j battery capacity is at least 80% of the manufacturers rating when

'%> subjected to a performance dischar;e test. Once per 60 month interval, this performance discnarge test may be performed in lieu of the battery service test.

f. Annual performance discharge tests of battery capacity shall be given to any battery that shows signs of degradation or has reached 85% of the service life expected for the application. Degradation is indicated when the battery capacity droos more than 10% of rated capacity from its average on previous performance tests, or is below 90% of the manufacturer's rating.

"Tne specified 18 month inte.' val may be waivec for Cycle 1 pmvided the surveillance is performed curing Refuel 1.

O L.ASALLE-UNIT 1 3/4 8-17 Amencment No. 24

1 j) .

ELECTRICAL POWER SYSTEMS l

) SURVEILLAt:CE REQUIREt4ENTS 1

i 4.8.2.3.1 Each of the above required D.C. distribution system electrical divisions shall be determined OPERABLE and energized at least once per 7 days i by verifying correct breaker alignment, indicated power availability from the charger and battery, and voltage on the panel with an overall voltage of

greater than or equal to 125 volts.

! 4.8.2.3.2 Each 125-volt battery and charger shall bc demonstrated OPERABLE:

i

a. At least once per'7 days by verifying that:

1 1

1. The parameters in Table 4.8.2.3.2-1 meet the Category A limits, j and' i

l 2. Total battery terminal voltage is greater than or equal to 128 j volts on float charge, i b. At least once per 92 days and within 7 days aft.er a bat.ery discharge

! m with battery voltage below 110 volts, or battery overcharge with

] '

g battery terminal voltage above 150 volts, by verifying that:

S

r 1. The parameters in Table 4.8.2*3.2-1 meet' the Category B limits, J >. v . n .

4 j

k$

A 9

There is no visible corrosion at either terminals or connectors,

  • or the connection resistance of these items is less than 150 x

${so 10.s ohm, and '

[

d E (D 3. The average electrolyte temperature of at least 10 connected l

wh

> n cells is above 60*F.

j g c. At least once per 18 months by verifying that:

1 o .o

at r 1. The cells, cell plates and battery racks show no visual i

1 ah 4

indication of physical damage or abnormal deterioration, j 5m 2. The cell-to-cell and terminal contiections are' clean, tigt t, I

3 '@

g free of corrosion, and coated with anticorrosion material, l dod g2

3. The resistance of each cell and terminal connection is less than or equal to 150 x 10 8 ohm, and i U

@ ,# " 4. Q, supply at least_900 mrtrF for Division 1, 75 ampet es fMhi, Mand 50 amperes for j -

l

.nivision ? etmeMTn1 mum of 130 volts foFTt tesst-4thars.

l 1

r LA SALLE - UNIT 2 3/4 8-15

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3. ELECTRICAL POWER SYSTEMS a-  !

SURVEILLANCE REQUIREMENTS (Continued) i

d. At least once per 18 months, during shutdown, by verifying that 4 eithee:- .

% he battery capacity is adequate to supply and maintain in OPERABLE status all of the actual emergency loads for the  :

design cycle when the battery is subjected to a battery service .

2 test, or I

.- ., t l The battery capacity is adequate to supply a dummy load, hich  !

I is verified to be greater than the actual emergency loa , of the  !

following profile while maintaining the battery termi voltage y eater than or equal to 105 volts. '

I

) a) ivision 1, greater than or equal to: (

l l

- 1) 456.2 amperes for the first 60 seco s, i 2) 4.0 amperes for the naxt 14 min es,  !

! 3) 2 0 amperes for the next 15 mi tes, a

4) 132, amperes for the next 30 nutes, and  !
5) 64.0 mperes for the last 1 minutes.  ;

b) Division 2, gr ter than or eq 1 to:

1) 488.5 amperes or the rst 60 seconds,
2) 237.6 amperes th next 14 minutes,
3) 177.6 amperes for ; e next 15 minutes,
4) 141.6 amperes for 'he next 30 minutes, and
5) 54.4 amperes f the ast 180 minutes.

c) Division 3 grea r than or eq l to: ,

1) 58.4 amp 'bs for the first 6 econds,
2) 11.1 a.. er.s for the next 239 nutes.

d) Unit 1 0 ision 2, greater than or equa to:

1) 8.5 amperes far the first 60 seconds, ,
2) 237.6 amperes for the next 14 minutes, 3 177.6 amperes for the next 15 minutes, 141.6 amperes for the next 30 minutes, and
5) 54.4 amperes for the last 180 minutes.

t N

LA SALLE - UNIT 2 3/4 8-16

N ATTACIMEHLC

/ IEC12HCALSEECIFICATION CHANGE REQQIST LASALLE_CCUllTLSTATICtLilli1Ts 1 AND_2 EYALUATIEtLOT_SIGluf1 CAUL 11AZ.ARDS CotillDEEAI1Cti Commonwealth Edison has evaluated the proposed Technical Specification Amendment and determlued that it does not represent a significant hasards consideration. Based on the criteria for defining a significant hasards consideration established in 10 CTR 50.92, operation for LaSalle Cotnty Station Units 1 and 2 lu accordance with the proposed amendment will_natt

1) Involve a significant increase in the probability or consequences of an accident previously evaluated because:

The Tables proposed to be removed from the Techr...el Specifications are an administrative listing of DC Loads. These Table currently exist and will continue to be maintained in the UFSAR.

2) Create the possibility of a new or different kind of accident from any accident previously evaluated because:

The basis desigt. of the DC Power System *nd its interfaces with other systems will remain unchanged. There are no proposed changes to the Technical Specification Besos.

3) Involve a significant reduction in the nargin of safety because:

Current testing frequeneles will remain unchanged. The change will f acilitate testir , be tause the values will better reflect installed loads in the plant.

Guidance has been provided in 51 Tr 7744 for the application to l license change requests for determination of the esistence of slanificant hasards considerations. This document provides examples of amendments which are and are not likely considered to involve significant hasards considerations.

This proposed amendment does not involve a significant relaxation of th. criteria used to establish safety limits, a significant relaxation of the bases for the limiting safety system settings or a significant relaxation of the bases for the limiting conditiors for operations. Therefore, based on the guidance provided in the rederal Register and the criteria established in 10 CFR 50.92(e), the propose ( change does not constitute a significant hazards consideration.

5373K

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