ML20203E823
| ML20203E823 | |
| Person / Time | |
|---|---|
| Site: | Peach Bottom  |
| Issue date: | 04/07/1986 |
| From: | PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC |
| To: | |
| Shared Package | |
| ML20203E795 | List: |
| References | |
| NUDOCS 8604240415 | |
| Download: ML20203E823 (2) | |
Text
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ffR.07 '86 14:36 FECO H0 Et1 ERG SUP CN3RJH,FL P.03
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LIMITING CONDITIONS FOR OPERATION SUR_VEILLANCE REQUIREMENTS 3.7.A Primary Containment (Cont'd.)
4.7.A Primary Containment (Cont'd.)
3.
_P_ressure Suppression Chamber _-
3.
Pressure suppression Chamber -
Reactor BufIding Vacuum Breakers React _or Building Vacuum Breske.
- a. Except as specified in 3.7. A.3.b
- a. The pressure suppression chambe below, two pressure suppression reactor building vacuum breaker chamber-reactor building vacuum and associated instrumentation i
breakers shall be operable at including setpoint shall be all times when primary contain-checked for proper operation ment integrity is required.
every refueling outage.
The setpoint of the differential s
d pressure instrumentation which
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actuates the pressure suppression j
chamber-reactor building vacuum breakers shall be 0.5 +/- 0.25 paid.
- b. From and after the date that one of the pre. ure suppression chamber-reactor bu Ading vacuum breakers 1
is made or found to be inoperable
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for any reason, reactor operation is permissible only during the succeeding seven days unless such vacuum breaker is sooner made oper-able provided that the repair prece-dure does not violate primary containment integrity.
4.
Drywell-Pressure Suppression 4
Drywell-Pressure Suppression Chamber Vacuum Breakers Chamber _ Vacuum Breakers
- a. When primary containment is
- a. Each drywell-suppression chainbe:;
i required, all drywell-suppression vacuum breaker shall be chamber vacuum breakers shall exercised through an opening-l be operable and positioned closing cycle once a month.
in the fully closed position (except during testing) except
- b. When it is determined that as specified in 3.7.A.4.b and a vacuum breaker is inoperable c below.
for opening at a time when operability is required,
- b. Drywell-suppression chamber all other vacuum breakers vacuum breaker (s) may be shall be exercised immediately "not fully seated" as and every 15 days thereaf ter shown by position indication until the inoperable if testing confirms that the vacuum breaker has been l
bypass area is less than or returned to normal service.
equivalent to a one-inch diameter hole.
Testing shall be initiated within 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />
- c. Once per operating cycle of initial detection of a each vacuum breaker shall "not fully seated" position be visually inspected
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APR.07 '86 14:37 PECO HQ EMERG SUP Q@_7JH FL P.04 L MITING_ CONDITIONS FOR_ OPERATION _ _ _ _ _ _ _ _ _ S_URVEILLANCE_REQUIREME_.3TS 3.7.A Primary Containment (cont'dl 4.7.A Primarg_ containment (Qont'd.1 indication and shall be per-to insure proper maintenance formed periodically there-and operation.
after as follows:
(1)
Once every 15 days (only d.
A leak tes of the drywell to if "not fully scated" suppression chamber structure valve (s) are indicated).
shall be conducted at each refueling outage to assure (2)
Within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> following no bypass larger than or vacuum breaker exercising equivalent to a one-inch required by 4.7.A.4.a and diameter hole exists between 4.7.A.4.B.
(only if the drywell and suppression "not fully seated" valve (s) chamber.
are indicated).
c.
Two drywell-ouppression chamber vacuum breakers may be inoperable for opening.
d.
If specifications 3.7.A.4.a, b, or c cannot be mot, the situa-tion shall be corrected within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> or the unit shall be placed in a cold shutdown condition in an orderly manner.
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