ML19317G974
| ML19317G974 | |
| Person / Time | |
|---|---|
| Site: | Rancho Seco |
| Issue date: | 11/26/1975 |
| From: | SACRAMENTO MUNICIPAL UTILITY DISTRICT |
| To: | |
| Shared Package | |
| ML19317G975 | List: |
| References | |
| NUDOCS 8004020634 | |
| Download: ML19317G974 (2) | |
Text
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.h 1
RANCHO SECO UNIT 1 TECHNICAL SPECIFICATIONS
-Surveillance Standards provided local leakage rate measurements are made before and af ter repair -to demonstrate that the leakage rate reduction achieved by repairs reduces the overall measured integrated leak rate to an acceptable value.
4.4.1.1.7 Report of Test Results Each integrated leak rate test will be the subject of a sunniary technical reprot which will include a description of test methods used and a summary of local leak detection tests.
Sufficient data-and analysis shall be included to show that a stabilized leak rate was attained and to identify all significant required correction factors such as those associated with humidity and barometric pressure, and all significant errors such as those asssociated with instrumentation sensitivities and data scatter.
4.4.1.2 Local Leakage ; tate Tests 4.4.1.2.1 Scope of Testing The local leak rate shall be racasured for each of the following components:
(1)
Personnel hatch (2)
Emergency hatch
(?)
Equipment batch seals (4)
Fecel transfer tube seals (5)
Fuel transfer tube shroud bellows (6)
Reactor Building normal sump drain line (7)
Reactor coolant pump seal water outlet line (8)
Reactor coolant pump seal inlet line (9)
Reactor Building equalizing line (10)
Decay Heat removal inlet Iines (11)
Reactor Building spray inlet lines (12)
High pressure injection 1ines (13)
Electrical penetrations (14)
Reactor Building purge inlet line (15)
Reactor Building purge outlet line (16)
Reactor Building atmosphere sample lines (17)'
Letdown to pt rification domineralizer line (18)
Pressurizer relief tank gas sample line (19)
. Reactor coolant system vent header 8004 o20 D9' 39 Proposed Amendment No.
4 73 RANCHO CECO UNIT 1 ECHNICAL SPECIFICATIONS Surveillance Standards (20)
Pressurizer relief tank nitrogen supply line (21)
Pressurizer sample line (22)
Reactor coolant drain tank header 4.4.1.2.2 Conduct of Tests (a)
With the exception of the personnel and emergency hatches, all local Icak rate tests shall be performed at a pressure of not less than 52 psig.
See paragraph 4.4.1.2.5b for personnel and emergency hatch test pressure.
(b)
Acceptable methods of testing are halogen gas detection, soap bubbles, pressure decay, hydrostatic flow or equivalent.
4.4.1.2.3 Acceptance Criteria The total leakage from all penetrations and isolation valves shall not exceed 0.06 percent of the Reactor Building atmosphere per 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.
4.4.1.2.4 Corrective Action and Retest (a)
If at any time it is determined that the criterion of 4.4.1.2.3 above is exceeded, repairs shall be initiated immediately.
(b)
If conformance to the criterion of 4.4.1.2.3 is not demon-strated within 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> following detection of excessive local leakage, the reactor shall be shutdown and depres-surized until repairs are effected and the local leakage meets the acceptance criterion as demonstrated by rctest.
4.4.1.2.5 Test Frequency Local leak detection tests shall be performed at a frequency of at least cach refueling interval, except that:
(a)
The equipment hatch, cmergency hatch outer door double 0-ring seals, and fuel transfer tube seals shall be additionally tested after each opening.
(b)
The personnel hatch outer door double 0-ring seals shall be l
tested at four month intervals, except when the hatch is not opened during that interval.
Test pressure between seals shall be 10 psig.
In no case shall the test interval be longer than 12 months.
Both the personnel hatch and emergency hatch shall be tested between the inner and outer doors at a pressure not less than 52 psig at least once cach refueling interval.
Proposed Amendment No. 39 4-18