ML20028G966

From kanterella
Jump to navigation Jump to search
Proposed Tech Spec Changes Re Conductor Overcurrent Devices
ML20028G966
Person / Time
Site: LaSalle  Constellation icon.png
Issue date: 09/21/1990
From:
COMMONWEALTH EDISON CO.
To:
Shared Package
ML20028G965 List:
References
NUDOCS 9010050002
Download: ML20028G966 (9)
v • d • e


Text

i ATTACHMENT B ,

i PROPOSED PAGE_ CHANGES TO  ;

1 THE TECHNLCAL SPECIFlcATIONS FOR OEEBalltiG11RENSE NPF-11 and NPF-18 ,

BEV1 SED _PAGES; ,

NPF-11 NPF 18  ;

3/4825 3/4825 '

B 3/4 8 3 B 3/4 8-3 l

l f

l t

l

'90100so002 90o921

  • fDR ADOCK 0500o373 .

PDC

I TABLE 3.8.3.2-1 (Continued)

DEVICE NUMBER AND LOCATION SYSTEM / COMPONENT POWERED f

d) MCC 134X-1 (Compt. B4) NB/MOV IB21-F002  ;

e) MCC 136Y-1 (Compt. B-2) (Normal) RH/MOV 1E12-F009 f) MCC 136Y-2 (Compt. E4) RI/MOV IE51-F063 l t

g) MCC 135Y-1 (Compt. A1) RR/MOV 1B33-F023A  ;

h) MCC 135Y-1 (Compt. A4) RR/MOV IB33 F067A i) MCC 133-1 (Compt. C2) RT/MOV 1G33-F102  !

j) MCC-133-1 (Compt. E1) NB/v40V IB21-F005 k) MCC-136Y-2 (Compt. B1) NB/MOV 1B21-F016  ;

1) MCC 136Y-2 (Compt. E1) RH/MOV IE12-F099A m) MCC 136Y-1 (Compt. E4) RT/MOV 1G33-F001 )

n) MCC 136Y-2 (Compt. A5) WR/MOV IWRIBO j o) MCC 136Y-2 (Compt. 06) RH/MOV 1E12 F099B p) MCC 136Y-1 (Compt. H5) '

VP/MOV IVP113B q) MCC 136Y-1 (Compt. H4) VP/MOV IVP114A r) MCC 136Y-1 (Compt. H3) VP/MOV IVP113A s) MCC 136Y-1-(Compt. H6) VP/MOV IVP114B j t) MCC 136Y-2 (Compt. A4) WR/MOV IWRi?9 u) MCC 135Y-1 (Compt. D3) RT/MOV IG33-F101 i v) MCC 135Y-1 (Compt. D4) RT/MOV IG33-F100 w) MCC 133-1 (Compt C3) RT/MOV 1G33-F106 i x) MCC 136Y-2 (Compt. 05) RI/MOV 1E51-F076 y) MCC 135X 1 (Compt. C2/C',) (Emerg) RH/MOV 1E12-F009

2. Type K-M Cat # NZ M12V-63C/ZM12AV a) MCC 135X-2 (Compt. E4) VP/Pri. Cont.

L Vent Supply Fan 1A Backup L b) MCC 136X-2 (Compt. G4) VP/Pri. Cont '

Vent Supply Fan IB Backup LASALLE-UNIT 1 3/4 8-25 Amendment No. 54

l I

i i

I INSEBI i

I J

i l z) MCC 133 2 (Compt. AC1) VP/Drywell Cooler IVP15SA aa) MCC 133 2 (Compt. AB1) VP/Drywell Cooler IVP15SE I ab) MCC 133 2 (Compt. AB2) VP/Drywell Cooler 1VP15SD l 4 I

ac) MCC 134X 2 (Compt. H1) VP/Drywell Cooler 1VP15SB l

! ad) MCC 134X 2 (Compt. H2) VP/Drywell Cooler 1VP15SC ae) MCC 134X 2 (Compt.J1) VP/Drywell Cooler 1VP15SF i l

i i

I 1

1

\

ELECTRICAL POWER SYSTEMS,

. I BASES '

i A.C. SOURCES AND ONSITE POWER DISTRIBUTION SYSTEMS (Continued) ,

specific gravity, ensures that the decrease in rating will be less than the ta'ety l margin provided in sizing; (3) the allowable value for an individual cell's speci-fic gravity ensures that an individual cell's specific gravity will not be more  ;

than 0.040 below the manufacturer's full charge specific gravity ar.d that the <

overall capability of the battery will be maintained within an acceptable limit; '

and (4) the allowable value for an individual cell's float voltage, greater than 2.07 volts, ensures the battery's capability to perform its design function. '

The battery load profile and battery charger specifications will be main-tained and are located in Chapter 8, " Electrical Power", section of the Updated Final Safety Analysis Report, UFSAR.  :

3/4.8.3 ELECTRICAL E0VIPMENT PROTECTIVE DEVICES (mcoara Aun tim wetwt ( b A % 4.Lb Kv AWD 450 voj Primary containment & electrical penetrat' ions and penetration conductors are protected by either de-energizing circuits not required during reactor operation or demonstrating the OPERABILITY of primary and backup overcurrent protection circuit breakers by periodic surveillance.

The surveillance requirements applicable to lower voltage circuit breakers and fuses provides assurance of breaker and fuse reliability by testing at least one representative samrie of each manufacturers brand of circuit breaker and/or

, fuse.

I Each manufacturer's molded case and metal case circuit breakers and/or fuses are grouped into representative samples which are then tested on a rotat-ing basis to ensure that all breakers and/or fuses are tested. If a wide variety exists within any manufacturer's brand of molded case circuit breakers and/or fuses, it is necessary to divide that manufacturer's breakers and/or fuses into groups and treat each group as a separate type of breaker or fuses for survell-lance purposes.

The bypassing of the motor & erated valves thermal overload protection continuously or during accident conditions by iritegral bypass devices ensures that the forming thermal theiroverload function.protection will not prevent safety related valves from per-The Surveillance Requirements for demonstrating the I

bypassing of the thermal overload protection continuously and during accident conditions are in accordance with Regulatory Guide 1.106 " Thermal Overload Pro-

{ tection for Electric Motors on Motor Operated Valves", Revision 1, March 1977.

LA SALLE UNIT 1 B 3/4 8-3 Amendment No. 74

1 TABLE 3.8.3.2-1 (Continued) ,

DEVICE NUMBER AND LOCATION SYSTEM / COMPONENT POWERED 1

d) MCC 234X-1 (Compt. B4) NB/MOV 2B21-F002  !

l e) MCC 236Y-1 (Compt. B2 (Normal) RH/MOV 2212-F009 l J

f) MCC 236Y-2 (Compt. E4) RI/MOV 2E51-F063 )

g) MCC 235Y-1 (Compt. A1) RR/MOV 2833-F023A 1

h) MCC 235Y-1 (Compt. A4) RR/MOV 2B33-F067A i) MCC 233-1 (Compt. C2) RT/MOV 2G33-F102  ;

j) MCC-233-1 (Compt. E1) NB/MOV 2B21-F005 k) MCC-236Y-2 (Compt. B1) NB/MOV 2821-F016 i

1) MCC 236Y-2 (Compt. E1) RH/MOV 2E12-F099A m) MCC 236Y-1 (Compt. E4) RT/MOV 2G33-F001 n) MCC 236Y-2 (Compt. AS) WR/MOV 2WR180 o) MCC 236Y-2 (Compt. 06) RH/MOV 2E12-F0998

[

p) MCC 236Y-1 (Compt. H5) VP/MOV 2VP113B q) MCC 236Y-1 (Compt. H4) VP/MOV 2VP114A r) MCC 236Y-1 (Compt. H3) VP/MOV 2VP113A s) MCC 236Y-1 (Compt. H6) VP/MOV 2VP114P t) MCC 236Y-2 (Compt. A4) WR/MOV 2WP179 i

u) MCC 235Y-1 (Conipt. D3) RT/MOV 2G33-F101 v) MCC 235Y-1 (Compt. D4) RT/MOV 2G33-F100 [

w) MCC 233-1 (Compt. C3) RT/MOV 2G3 W O3 x) MCC 236Y-2 (Compt. 05) Rl/MOV 2E51-F016 L _ y) MCC 235X-1 (Compt. 02/C3) (Emerg) ..nn10V 2E12-F009

2. l ackup breakers are located in the front of the respective MCC, a) MCC 235X-2 (Compt. AA4) VP/Pri. Cont.

Vent Supply Fan 2A Backup b) MCC 236X-2 (Compt. AA4) VP/Pri. Cont i Vent Supply Fan 28 Backup l r LASALLE - UNIT 2 3/4 8-25 Amend.3ent No. 52

I l

INSERT i

i z) MCC 233 2 (Compt. AC1) VP/Drywell Cooler 2VP15SA aa) MCC 233 2 (Compt. AB1) VP/Drywell Cooler 2VP15SE  ;

e ab) MCC 233 2 (Compt. AB2) VP/Drywell Cooler 2VP15SD j ac) MCC 234X-2 (Compt. H1) VP/Drywell Cooler 2VP15SB ad) MCC 234X 2 (Compt. H2) VP/Drywe!! Cooler 2VP15SC !

ae) MCC 234X-2 (Compt.J1) VP/Drywell Cooler 2VP15SF f

ZNLD145 24  ?

l i

+

l l

l i

i l

ELECTRICAL POWER SYSTEMS-I BASES i l

A.C. SOURCES AND ONSliE p0WER DISTRIBUTION SYSTEMS (Continued) specific gravity, ennTes that the det. cease in rating will be less than the safety j margin provided in sizing; (3) the allowable value for an individual cell's speci- '

fic gravity ensures that an iridividual cell's specific gravity will not be more than 0.040 below the manufactuier's full charge specific gravity and that the ,

overall capability of tha battery will be maintained within an acceptable limit;  !

and (4) the allowable valua for an individual cell's float voltage, greater than  ;

2,07 volts, ensures the battery's capability to perform its design function.

The battery load profile and bat'.ery charger specifications will be main- l tained and are located in Chapter 8, " Electrical Power", section of the Updated Final Safety Jaalysis Report, UFSAR.  ;

3/4.8.3 ELECTRICAL EOUIPMENT PROTECTIVE DEVICES 5

~ Nwms wn en woAGE (6.W ;4M AND 40 WM Primary containmentDe e~i:trical penetrations and penetration conductors are protected by either de-energizing circuits not required during reactor operation <

or demonstrating the OPERABILITY of primary ano backup overcurrent protection circuit breakers by periodic surveil'iance. i The surveillance requirements applicable to lower voltage circuit breakers and fuses provides assurance of breaker ar i .use reliability by testitig at least one fuse.

representative sample of each manufacturers brand of circuit breaker and/or L Each manufacturer's molded case and metal case circuit breakers and/or fuses are grouped into representative samples which are then tested on a rotat- -

ing basis to ensure that all breakers and/or fuses are tested. If a wide variety exists within any manufacturer's brand of molded case circuit breakers and/or fuses, it is necessary to divide that manufacturer's breakers and/or fuses into groups and treat each group as a separate type of breaker or fuses for surveil-lance purposes.

The bypassing of the motor operated valves thermal overload protection continuously or during accident conditions by integral bypass devices ensures that the thermal

-forming theiroverload function.protection will not prevent safety related vaives from per-The Surveillance Requirements for demonstrating the bypassing of the thermal overload protection continuously and during accident l conditions are in accordance with Regulatory Guide 1.106 " Thermal Overload Pro-i i

.a taction for Electric Motors on Motor Operated Valves", Revision 1, March 1977. -

l l

LA SALLE - UNIT 2 B 3/4 8-3 Amendment No. 58

t c

l AUACHMENT C -

i SIGNIElCANT HAZARDS CONSjDEBAIjQN

. Commonwealth Edison has evaluated the proposed Technical Specification Amendment and determined that it does not represent a significant hazards consideration. Based on the criteria for defining a significant hazards consideration established in 10CFR50.92, owration of LaSalle County Station Units 1 and 2 in -

accordance with the proposec amendment willnot:

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

This amendment proposal is an administrative change to extend the existing technical specification requirements for primary containment penetration conductor overcurrent protection devices to the fault protection breakers for  ;

primary containment coolers installed during a recent plant modification. The  ;

n.odification was completed as part of a commitment to the NRC to restore the design redundancy of the wimary containment cooling system. Although the installations have been se smically designed and analyzed, the modification is classified as non-safety related and does not interf ace with safety related equipment in a manner that has not previously been evaluated in the LaSalle Station UFSAR. The corrections to Table 3.8.3.2-1 do not change the intent of the technical specifications but merely correct the identification numbers for the i primary containment ventilation supply fans.

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

! The existing conditions and accident analysis of the UFSAR are unchanged. The l single failure events and design basis accidents are not affected. Extension of the i existing technical specification requirements to the new overcurrent protective devices helps to ensure that the occurrence of a new or different kind of accident fmm any previously evaluated will romain unlikely.

3) Involve a significant reduction in the r- gin of safety because:

Extension of the existing technical specification requirements to the new overcurrent protective devices helps to maintain the margin of safety already existing.

Guidance has been provided in 51 FR 7744 (reference 1), for the application of j standards to license change requests for determination of the

[

I existence of significant hazards considerations. This document provides examples of amendments which are and are not considered likely to involve significant hazards considerchons.

This proposed amendment does not involve a significa. relaxation of the criteria used to r establish safety limits, a significant relaxation of the be., es for the limiting safety system .

settings or a signMicant relaxation of the bases for the limiting conditions for operations.

Therefore, based on the guidance provided in the Federal Register and the criteria -

established in 10CFR50.92(e), the proposed change does not constitute a significant hazards consideration.

i I

cag/ZNLD/ID145 i h >

-

Retrieved from "https://kanterella.com/w/index.php?title=ML20028G966&oldid=2492231"