ML20245K699
| ML20245K699 | |
| Person / Time | |
|---|---|
| Site: | Big Rock Point File:Consumers Energy icon.png |
| Issue date: | 06/30/1989 |
| From: | CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.) |
| To: | |
| Shared Package | |
| ML20245K683 | List: |
| References | |
| NUDOCS 8907050223 | |
| Download: ML20245K699 (2) | |
Text
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ATTACHMENT Consumers Power Company Palisades Plant Docket 50-255 a
TECHNICAL SPECIFICATION CHANGE REQUEST CONTAINMENT SPHERE LEAKAGE TESTING June 30, 1989 1 Page OC0689-0011-h102 8907050223 890630 PDR ADOCK 05000155 P
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10 3.7 (Contd)
. leakage rate shall yield an overall leakage rate not greater than 0.5%/ day at 27 psig.
(d) A containment sphere integrated leakage rate test shall be
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performed at a pressure not less than 11.5 psig in conformance with
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the criteria specified in Appendix J of 10 CFR 50.
Three tests
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shall be conducted at 40 t 10 month intervals during each 10-year
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service period.
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(e) If any containment' sphere integrated leakage rate test (ILRT) fails
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to meet the specifications of 0.5%/ day of contained atmosphere
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'(weight basis) at the design pressure (27 psig) or extrapolated to
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the design pressure, the test schedule for subsequent ILRTs shall
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be reviewed and approved by the Commission.
If two consecutive
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ILRTs fail to meet these specifications, then an ILRT shall be
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performed at least every 13 months until two consecutive ILRTs meet
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the' acceptance criteria, at which time the above test schedule may
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be resumed.
(f) The accuracy of each ILRT shall be verified by a supplemental test
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in accordance with Appendix J of 10 CFR 50 which confirms the
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accuracy of the test by (1) verifying the difference between the
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supplemental test data and the ILRT is within 0.25 L or 0.25 L '
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s t
(2) continuing the test for a duration sufficient to establish
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accurately the change in leakage rate between the ILRT and
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supplementati test.
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k OC0689-0011-NLO2
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