ML18022B041
| ML18022B041 | |
| Person / Time | |
|---|---|
| Site: | Harris  |
| Issue date: | 05/14/1998 |
| From: | Office of Nuclear Reactor Regulation |
| To: | |
| Shared Package | |
| ML18016A432 | List: |
| References | |
| NPF-63-A-077 NUDOCS 9805200366 | |
| Download: ML18022B041 (3) | |
Text
PLANT SYSTEMS V
3/4.7.3 COMPONENT COOLING WATER SYSTEM LIMITING CONDITION FOR OPERATION 3.7.3 At least two component cooling water (CCW) pumps' heat exchangers and essential flow paths shall be OPERABLE.
APPLICABILITY:
MODES 1, 2, 3, and 4.
ACTION:
With only one component cooling water flow path OPERABLE. restore at least two flow paths to OPERABLE-status within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-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 />.
SURVEILLANCE REQUIREMENTS 4.7.3 At 'least two component cooling water flow paths shall be demonstrated OPERABLE:
a.
At least once per 31 days by verifying that each valve (manual, power-operated, or automatic) servicing safety-related equipment that is not locked. sealed, or otherwise secured in position is in its correct position; and At least once per 18 months by verifying that:
l.
Each automatic valve servicing safety-related equipment or isolating non-safety-related components actua'tes to its correct position on a Safety Injection test signal, and 2.
Each Component Cooling Water System pump required to be OPERABLE starts automatically on a Safety Injection test signal.
Each automatic valve serving the gross failed f'uel detector and sample system heat exchanger s actuates to its correct position on a
Low Surge Tank Level test signal.
- The breaker for CCW pump 1C-SAB shall not be racked into=either power source (SA or SB) unless the breaker from the applicable CCW pump (1A-SA or 1B-SB) is racked out.
'M052003bb 9805i4 Inn Annex onoooeoo P
PDR SHEARON HARRIS - UNIT 1 3/4 7-11 Amendment No. 7~
REVIEWED gY NRC LETTER DATED MAY 14, ll
t V
h APPLICABILITY BASES 4
4.0.2 The provisions of this specification establish the limit for which the specified time interval for Surveillance Requirements may be extended.
It permits an allowable extension of the normal surveillance interval to facilitate surveillance scheduling and consideration of plant operating conditions that may not be suitable for conducting surveillance; e.g..
transient conditions or other ongoing surveillance or maintenance activities.
It also provides flexibilityto accommodate the length of a fuel cycle f'r surveillances that are performed at each refueling outage and are specified with an 18 month surveillance interval.
It is not intended that this provision be used repeatedly as a convenience to extend surveillance intervals beyond that specified for surveillances that are not performed during ref'ueling outages'.
Likewise. it is not the intent that the 18-month interval surveillances be performed during power operation unless it is consistent with safe plant operation.
The limitation of Specification 4.0.2 is based on engineering judgement and the recognition that the most probable result of any particular surveillance being performed is the verification of conformance with the Surveillance Requirements.
This provision is sufficient to ensure that the reliability ensured through surveillance activities is not significantly degraded beyond that obtained from the specified surveillance interval.
4.0.3 Specification 4.0.3 establishes the flexibility to defer declaring affected equipment inoperable or an affected variable outside the specifsed limits when a surveillance has not been completed within the specified surveillance interval.
A delay period of up to 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> or up to the limit of the specified surveillance interval. whichever is less, applies from the point in time that it is discovered that the surveillance has not been performed in accordance with Specification 4.0.2, and not at the time that the specified surveillance interval was not met.
This delay period provides adequate time to complete sur veillances that have been missed.
This delay period permits the completion of a surveillance before complying with ACTION requirements or other remedial measures that might preclude completion of the surveillance.
The basis for this delay period includes consideration of unit conditions, adequate planning, availability of personnel, the time required to perform the surveillance, the safety significance of the delay in completing the requi red surveillance, and the recognition that the most probable result of any particular surveillance being performed is the verification of conformance with the requirements.
When a surveillance with a surveillance interval based not on time intervals, but upon specified unit conditions or operational situations, is discovered not to have been performed when specified, Specification 4.0.3 allows the full delay period of. 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> to perform the surveillance.
Specification 4.0.3 also provides a time limit for completion of surveillances that become applicable as a consequence of NODE changes imposed by ACTION requirements.
Failure to comply with specified surveillance intervals for surveys=llance requirements is expected to be an infrequent occurrence.
Use of the delay period established by Specification 4.0.3 is a flexibilitywhich is not intended to be used as an operational convenience to extend surveillance intervals.
SHEARON HARRIS - UNIT 1 REVISED BY NRC LETTER DATED MAY 14, 1998 B "3/4 0-2a Amendment No. 77