ML20038C526

Proposed Tech Spec 3.7/4 Changes,Bringing Integrated Primary Containment Leak Rate Test Requirements Closer to App J Requirements

ML20038C526
Person / Time
Site:	Quad Cities
Issue date:	12/02/1981
From:	COMMONWEALTH EDISON CO.
To:
Shared Package
ML20038C525	List: ML20038C524 ML20038C526
References
NUDOCS 8112110188
Download: ML20038C526 (7)

Text

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QUAD CITIES DPR-29 power operation limit specified in Item I within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.

3) The reactor shall be scrammed from any operating condition i if the pool temperature reaches 110 0F. Power operation shall not be resumed until the pool temperature is reduced below the normal operation limit specified in Item 1.

4) During reactor isolation conditions, the reactor pressure vessel shall be depressurized to less than 150 psig at normal cool-down rates if the pool temperature reaches 1200F.

O. Maximum downcomer Submergence 3.54 ft.

e. Minimum downcomer Submergence 3.21 ft.

2. Primary containment integrity shall 2. The containment leakage rates shal]

be maintained at all times when the be demonstrated at the following reactor is critical or when the test schedule, and shall be reactor water temperature is above determined in conformance with the 2120F and fuel is in the reactor criteria specified in Appendix J of vessel except while performing low 10 CFR 50 using the methods and power physics tests at atmospheric provisions of ANSI N45.4 (1972).

pressure at power levels not to exceed 5 MWt. a. Three Type A tests (Overall Integrated Containment Leakage

a. When primary containment Rate) shall be conducted at 40 3 integrity is required, primary 10 month intervals during containment leakage rates shall shutdown at either Pa, 48 be limited to: psig, or at Pt, 25 psig during each 10-year service period.

1) An overall integrated leakage Tne third test of each set shall rate of: be. conducted during the shutdowr for the 10-year plant inservice a) 6 La,1.0 percent by inspection.

weight of the containment air per 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> at P as j 48 psig, or hp kDOC 00

., P 3.7/4.7-2

QUAD CITIES DPR-29 b) i Lt, 1.0 percent by b. If any periodic Type A test weight of the containment fails to meet either 0.75 La air per 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> at a or 0.75 Lt, the test schedule reduced pressure of Pt, for subsequent Type A tests 25 psig, shall be reviewed and approved by the commission. If two

2) A combined leakage rate of consecutive Type A tests fail tc 6 0.60 La for all meet either 0.75 La or 0.75 penetrations and valves, L , a Type A test shall be except for main steam performed at least every 18 isolation valves, subject to months until two consecutive Type B and C tests when Type A tests meet either 0.75 pressurized to P a. L or 0.75 Lt, at which time the above test schedule may be

3) 11.5 set per hour for any one resumed.

main steam isolation valve when tested at 25 psig. c. The accuracy of each Type A test shall be verified by a

b. With the measured overall supplemental test which:

integrated containment leakage rate exceeding 0.75 La or 0.75 1) Confirms the accuracy of the Lt, as applicable, restore the test by verifying that the overall integrated leakage difference between the rate (s) to S 0.75 L a or 6 0.75 supplemental data and the Lt, as applicable. Type A test data is within c With the measured combined leakage rate for all 2) Has a duration sufficient to penetrations and valves, except establish accurately the for main steam isolatior. valves, change in leakage rate subject to Type B and C tests between the Type A test and exceeoing 0.60 La, restore the the supplemental test.

combined leakage rate for all penetrations and valves, except 3) Requires the quantity of gas for main steam isolation valves, injected into the containment subject to Type B and C tests or bled from the containment to 0.60 La. during the supplemental test to be equivalent to at least

d. Leakage shall be limited to a 25 percent of the total leakage rate of less then or measured leakage at Pa, 48 equal to 3.75 percent of L a psig, or Pt, 25 psig, for any one air lock when pressurized to 10 psig. d. Type B and C tests shall be conducted at Pa, 48 psig, at l

17tervals no greater than 24 months except for tests involving:

1) Air locks, which shall be tested at 10 psig at least once per 18 months, and 3.7/4.7-3

I QUAD CITIES DPR-29

2) Main steam isolation valves,

e. With the measured leakage rate which shall be leak tested at exceeding 11.5 scf per hour for least once per 18 months at a any one main steam isolation pressure of 25 psig.

valve, restore the leakage rate to 611.5 scf per hour for any 3) Bolted double-gasketed seals one main steam isolation valve which shall be tested at a

, prior to increasing the reactor pressure of 48 psig whenever coolant temperature above the seal is closed after 2120F. being opened and each operating cycle.

i

e. All test leakage rates shall be calculated using observed data j converted to absolute values.

Error analyses shall be l performed to select a balanced integrated leakage measurements system,

f. Continuous Leak Rate Monitor

1) When the primary containment is inerted, the containment ,.

shall be continuously monitored for gross leakage by review of the inerting

, system makeup requirements.

i

2) This monitoring system may be taken out of service for the

purpose of maintenance or i

testing but shall be returned to service as soon as practical.

3. Pressure Suppression Chamber- 3. Pressure Suppression Chamber-l Reactor Building Vacuum Breakers Reactor Building Vacuum Breakers l

a. Except as specified in a. The pressure suppression Specification 3.7.A.3.b below, chamber-reactor building vacuum two pressure sup-3.7/4.7-4

9 Attachment 2 Quad Cities Station Unit 2 Proposed Amendment to Technical Specifications for Facility Operating License DPR-30 Revised Pages: 3.7/4.7-2 3.7/4.7-3 3.7/4.7-4 4

QUAD CITIES DPR-30 power operation liriit specified in Item 1 within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.

3) The reactor shall be scrammed from any operating condition if the pool temperature reaches 1100F. Power operation shall not be resumed until the pool temperature is reduced below the normal operation limit specified in Item 1.

4) During reactor isolation conditions, the reactor pressure vessel shall be depressurized to less than 150 psig at normal cool-down rates if the pool temperature reaches 1200F.

o. Maximum downcomer Submergence 3.54 ft.

e. Minimum downcomer Submergence 3.21 ft.

2. Primary containment integrity shall  ?. The containment leakage rates shall be maintained at all times when the be demonstrated at the following reactor is critical or when the test schedule, and shall be reactor water temperature is above determined in conformance with the 2120F and fuel is in the reactor criteria specified in Appendix J of vessel except while performing low 10 CFR 50 using the methods and power physics tests at atmospheric provisions of ANSI N45.4 (1972).

pressure at power levels not to exceed 5 MWt. a. .Three Type A tests (Overall Integrated Containment Leakage

a. When primary containment Rate) shall be conducted at 40 3 integrity is required, primary 10 month intervals during containment leakage rates shall shutdown at either Pa, 48 be limited to: psig, or at Pt, 25 psig during each 10-year service period.

4

1) An overall integrated ' ge The third test of each set shall rate of: be conducted during the shutdown for the 10-year plant inservice a) S La, 1.0 percent by inspection.

weight of the containment x air per 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> at Pa, 48 psig, or 3.7/4.7-2 1 -

QUA0 CITIES OPR-30 b) 4 Lt, 1.0 percent by b. If any periodic Type A test weight of the containment falls to meet either 0.75 L a air per 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> at a or 0.75 Lt, the test schedule reduced pressure of P t, for subsequent Type A tests 25 psig. shall be reviewed and approved by the commission. If two

2) A combined leakage rate of consecutive Type A tests fall tc 6 0.60 La for all meet either 0.75 La or 0.75 ,

penetrations and valves, L , a Type A test shall be except for main steam performed at least every 18 isolation valves, subject to months until two consecutive Type B and C tests when Type A tests meet either 0.75 t pressurized to Pa. L or 0.75 Lt, at which time the above test schedule may be

3) 11.5 scf per hour for any one resumed.

main steam isolation valve when tested at 25 psig. c. The accuracy of each Type A test shall be verified by a

b. With the measured overall supplemental test which:

integrated containment leakage rate exceeding 0.75 La or 0.75 1) Confirms the accuracy of the Lt, as applicable, restore the test by verifying that the overall integrated leakage difference between the rate (s) to 5 0.75 L a or 5 0.75 supplemental data and the Lt, as applicable. Type A test data is within

c. With the measured combined leakage rate for all 2) Has a duration sufficient to penetrations and valves, except establish accurately the for main steam isolation valves, change in leakage rate subject to Type B and C tests between the Type A test and exceeding 0.60 La, restore the the supplemental test.

combined leakage rate for all penetrations and valves, except 3) Requires the quantity of gas for main steam isolation valves, injected into the containment subject to Type B and C tests or bled from the containment to 0.60 La. during the supplemental test to be equivalent to at least

d. Leakage shall be limited to a 25 percent of the total leakage rate of less then or measured leakage at Pa, 48 equal to .'.75 percent o f L a psig, or Pt, 25 psig.

for any one air lock when pressurized to 10 psig. d. Type B and C tests shall be conducted at Pa, 48 psig, at intervals no greater than 24 months except for tests involving:

1) Air locks, which shall be tested at 10 psig at least once per 18 months, and 3.7/4.7-3

't

. - - , --n v

QUAD CITIES DPR-30

2) Main steam isolation valves,

e. With the measured leakage rate which shall be leak tested at exceeding 11.5 scf per hour for least once per 18 months at a any one main steam isolation pressure of 25 psig.

valve, restore the leakage rate to f 11.5 scf per hour for any 3) Bolted double-gasketed seals one main steam isolation valve which shall be tested at a prior to increasing the reactor pressure of 48 psig whenever coolant temperature above the seal is closed after 2120F. being opened and each operating cycle.

e. All test leakage rates shall be calculated using observed data converted to absolute values.

Error analyses shall be performed to select a balanced integrated leakage measurements system.

f. Continuous Leak Rate Monitor

1) When the prinary containment is inerted, the containment shall be continuously monitored for gross leakage by review of the inerting system makeup requirements.

2) This monitoring system may be taken out of service for *he purpose of maintenance or testing but shall be returned to service as soon as i

practical.

3. Pressure Suppression Chamber- 3. Pressure Suppression Cha-nber,-

Reactor Building Vacuum Breakers Reactor Building Vacuum Breakers

a. Except as specified in a. The pressure suppression Specification 3.7.A.3.b below, chamber-reactor building vacuum two pressure sup-1 I

3.7/4.7-4

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