ML20151F919

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Proposed Tech Specs,Changing Required Surveillance Interval for Ice Condenser Lower Inlet Doors from Current Frequencies to 100% Insp Every 18 Months
ML20151F919
Person / Time
Site: Mcguire, Catawba, McGuire, 05000000
Issue date: 04/07/1988
From:
DUKE POWER CO.
To:
Shared Package
ML20151F917 List:
References
NUDOCS 8804190058
Download: ML20151F919 (4)
v • d • e


Text

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CONTAINMENT SYSTEMS ICE CONDENSER DOORS

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LIMITING CONDITION FOR OPERATION 3.6.5.3 The ice condenser inlet doors, intermediate deck doors, and top deck doors shall be closed and OPERABLE.

APPLICABILITY: MODES 1, 2, 3, and 4.

ACTION:

a. With one or more ice condenser doors open or otherwise inoperable (but capable of opening automatically), POWER OPERATION may continue for up to 14 days provided the ice bed temperature is monitored at least once per 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> and the maximum ice bed temperature is main-tained less than or equal to 27 F; otherwise, restore the doors to their closed positions or OPERABLE status (as applicable) within 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> or be in at least HOT STANOBY within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and in COLD SHUTOOWN within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.
b. With one or more ice condenser doors inoperable (not capable of open-ing automatically), restore all doors to OPERABLE status within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> or be in HOT STANDBY within 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and in HOT SHUT 00WN within the following 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and in COLD SHUTDOWN within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.

SURVEILLANCE REOUIREMENTS 4.6.5.3.1 Inlet Doors - Ice condenser inlet doors shall be:

a. Continuously monitored and determined closed by the Inlet Door Position Monitoring System, and 18
b. Demonstrated OPERABLE during shutdown at least once per1RImonths d.r'ag th: fir;t ,;;r efter the ice bad is initielly fully icaded and et least once per 5 month; thereafter by:
1) Verifying that the torque required to initially open each door is less than or equal to 675 inch pounds;
2) Verifying that each door is capable of opening automatically and that it is not impaired by ice, frost, debris, or other obstruction; each one
3) a ;;mpic of at 1 ::t 25% of the doors and verifying Testinghtorquerequiredtoopeneachdoorislessthan195 that th inch pounds when the door is 40 degrees open. This torque is defined as the "door opening torque" and is egyal to the nominal Thc d rs doortorqueplusafrictionaltorquecomponent;)terque"thcl'
10 ted for determination of the "d: r Open es d bc 010:ted t en:ure that :!' decr: Or t :t:d :t 'e:St n :

during f ur t :t interval:;

CATAWBA - UNITS 1 & 2 3/4 C-44 G804190058 G80407 PDR ADOCK 05000369 P D C D __ _ _ _ _. _ __ ___ __ _

1 l

CONTAINMENT SYSTEMS SURVEILLANCE REOUIREMENTS (Continued) i

4) Testinghca.c.h
.;i; ;' coe.
1;;;; 2 of the doors and verifying that the torque required to keep each door from closing is greater than 78 inch pounds when the door is 40 degrees open.

This torque is defined as the "door closing torque" and is equal to he nominal door torque minus a frictional torque compone t- Thc ci;;ingthque"d;;r;;;iectedf;rdetermin;ticaofth;"d;;r

hall b; ;clectcd to en:ure that cil d;;rs ;rc tested et least ;n;c during f;ur t :t interval:; and
5) Calculation of the frictional torque cf each door tested in accordance with Specification 4.6.5.3.lb.3) and 4), above.

The calculated frictional torque shall be less than or equal to 40 inch pounds.

4.6.5.3.2 Intermediate Deck Doors - Each ice condenser intermediate deck door shall be:

a. Verified closed and free of frost accumulation by a visual inspection at least once per 7 days, and
b. Demonstrated OPERABLE at least once per 3 months during the first year after the ice bed is initially fully-loaded and at least once per 18 months thereafter by visually verifying no structural deterioration, by verifying free movement of the vent assemblies, and by ascertaining free movement when lifted with the applicable force shown below:

Door Lifting Force

1) Adjacent to Crane Wall 5 37.4 lbs,
2) Paired w/ Door Adjacent to Crane -< 33.8 lbs, Wall
3) Adjacent to Containment Wall 5 31.8 lbs, and
4) Paired w/ Door Adjacent to 1 31.0 'bs.

Containment Wall 4.6.5.3.3 Top Deck Doors - Each ice condenser top deck door shall be deter-mined closed and OPERABLE at least once per 92 days by visually verifying:

a. That the doors are in place, and
b. That no concensation, frost, or ice has formed on the doors or blankets which would restrict their lifting and opening if required.

CATAWBA - UNITS 1 & 2 3/4 6-45

CONTAINMENT SYSTEMS I

ICE CONDENSER 000RS LIMITING CONDITION FOR OPERATION 3.6.5.3 The ice condenser inlet doors, intermediate deck doors, and top deck doors shall be closed and OPERABLE.

APPLICABILITY: MODES 1, 2, 3, and 4.

ACTION:

a. With one or more ice condenser doors open or otherwise inoperable (but capable of opening automatically), POWER OPERATION may continue for up p '

to 14 days provided the ice bed temperature is monitored at least once per 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> and the maximum ice bed temperature is maintained less than or equal to 27'F; otherwise, restore the doors to their closed positions or OPERABLE status (as applicable) within 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and in COLD SHUTDOWN within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.

b. With one or more ice condenser doors inoperable (not capable of opening automatically), restore all doors to OPERABLE status within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> or [

c be in HOT STANDBY within 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and in HOT SHUTOOWN within the following },

, 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and in COLD SHUTOOWN within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />. (

SURVEILLANCE REQUIREMENTS 4.6.5.3.1 Inlet Doors - Ice condenser inlet doors shall be:

a. Continuously monitored and determined closed by the inlet door position monitoring system, and IB
b. DemonstratedOPERABLEduringshutdownatleastoncepergmonthsby:
1) Verifying that the torque required to initially open each door is less than or equal to 675 inch pounds;
2) Verifying that each door is capable of opening automatically 6' in that it is not impaired by ice, frost, debris, or other

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obstruction;b006,

3) Testin ; ;;;;l; cf :t 1;;;t 50% of the doors and verifying that the to ue required to open each door is less than 195 inch-pounds when the door is 40 degrees open. This torque is defined as the "door opening torque" and is equal to the nominal door torque plus africtionaltorquecomponenh-Thedeerssci;;tedford;terrin; tion of the "deer sp;ning tm g " ; heil b; 3;?;;ted t; cn:;r; th;t t all deer; or; t;;ted ;t 1;;st on;; during two t;st int rv;l;;

AmendmentNo.X(Unit 2)

McGUIRE - UNITS 1 and 2 3/4 6-37 Amendment No. M'(Unit 1)

-Bj%l05-

CONTAINMENT SYSTEMS

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SURVEILLANCE REQUIREMENTS (Continued)

4) Testinhcat.borie x;p1: :f :t i n:t ^% of the doors and verifying that the torque required to keep each door from closing is

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greater than 78 inch pounds when the door is 40 degrees open.

This torque is defined as the "door closing torque" and is equal to he nominal door torque minus a frictional torque compone j The decre selected for determi s tion of the "d a r closing L que" : hall bc clected t: en;ure that all d=r: cr:

4 tested et i n:t One during tw t :t interval;, and

5) Calculation of the frictional torque of each door tested in accordance with 3) and 4), above. The calculated frictional torque shall be less than or equal to 40 inch pounds.

4.6.5.3.2 Intermediate Deck Doors - Each ice condenser intermediate deck door shall be:

a. Verified closed and free of frost accumulation by a visual inspection at least once per 7 days, and
b. Demonstrated OPERABLE at least once per 3 months during the first year after the ice bed is fully loaded and at least once per 18 months thereaf ter by visually verifying no structural deterioration, by verifying free movement of the vent assemblies, and by ascertain-ing free movement when lifted with the applicable force thown below:

Door Lifting Force

1) Adjacent to crane wall Equal to or less than 37.4 lbs,
2) Paired with door adjacent to crane wall Equal to or less than 33.8 lbs,
3) Adjacent to containment wall Equal to or less than 31.8 lbs, and
4) Paired with door adjacent to containment wall Equal to or less than 31.0 lbs.

4.6.5.3.3 Top Deck Doors - Each ice condenser top deck door shall be deter-mined closed and OPERABLE at least once per 92 days by visually verifying:

a. That the doors are in place, and
b. That no condensation, frost, or ice has formed on the doors or -

blankets which would restrict their lifting and opening if required.

Amendment No y/(Unit 2) l McGUIRE - UNITS 1 and 2 3/4 6-38 Amendme 7migra.ntNo.g(Unit 1) ,

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