ML20238E350
| ML20238E350 | |
| Person / Time | |
|---|---|
| Site: | Summer  |
| Issue date: | 12/22/1987 |
| From: | SOUTH CAROLINA ELECTRIC & GAS CO. |
| To: | |
| Shared Package | |
| ML20238E314 | List: |
| References | |
| NUDOCS 8801050109 | |
| Download: ML20238E350 (3) | |
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pay \\ s 1 PLANT SYSTEMS-3/4.7.11 AREA TEMPERATURE MONITORING LIMITING CONDITION FOR OPERATION 3.7.11 The temperature of each aret shown in Table 3.7-7 shall be maintained below the limits indicated in Table 3.7-7.
APPLICABILITY:
Whenever the equipment in an affected area is required to be OPERABLE.
~ ACTION:
With one or more areas exceeding the temperature limit (s) shown in Table 3.7-7:
a.
For more than eight hours, prepare and submit a Special Report to the Commission pursuant to Specification 6.9.2 within the next 30 days providing a record of the amount by which and the cumulative time the temperature in tha affected area exceeded its limit and an analysis to demonstrate the continued OPERABILITY of the affected equipment.
b.
By more than 30*F, in addition to the Special Report required above, within 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> either restore the area to below its temperature limit or declare the equipment in the affected area inoperable.
SURVEILLANCE REQUIREMENTS 4.7.11 The temperature in each of the areas of Table 3.7-7 shall be determined to be within its limit at least once per 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />.
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pp t o f t PLANT SYSTEMS TABLE 3.7-7 l
AREA TEMPERATURE MONITORING TEMPERATURE LIMIT (*F)
AREA 1.
Charging-SI Pump Room #1 102 2.
Charging-SI Pump Room #2 (swing) 102 j
3.
Charging-SI Pump Room #3 102 4.
RHR-Spray Pump Room #1 102
{
5.
RHR-Spray Pump Room #2 102
)
6.
MCC 10A2Y Room 102
)
7.
Switchgear IDB1 and MCC 1082Y Room 102 8.
Switchgear 1DA Room 102 9.
Switchgear IDB Room 102 j
10.
Battery 1A Room 88 11.
Battery 18 Room 88 i
12.
Charger 1A Room 102 13.
Charger 1B Room 102 14.
Charger IA/1B Room 102 15.
Relay Room 83 16.
Component Cooling oump "A" Speed Switch Room 102 17.
Component Cooling g, ump "B" Speed Switch Room 102 18.
Component Cooling Pump "C" Speed Switch Room 102 19.
Evacuation Panel "A" Room 83 20.
Evacuation Panel "B" Room 83 21.
Service Water Booster Pumps Area 102 22.
Emergency Feedwater Pumps Area 102 23.
Diesel Generator 1A Room 120 24.
Diesel Generator 1B Room 120 25.
Service Water Pump / Screen Room W //(
26.
Service Water Switchgear Room "A" 102 27.
Service Water Switchgear Room "B" 102 28.
Service Water Switchgear Room "C" 102 29.
Diesel Generator Exciter Cabinet Room "A" 102 30.
Diesel Generator Exciter Cabinet Room "B" 102 SUMMER - UNIT 1 3/4 7-38
J ATTACHMENT II NO SIGNIFICANT HAZARDS DETERMINATION The proposed change does not involve a significant hazards consideration because operation of the Virgil.C. Summer Nuclear Station in accordance with the proposed change would not:
1.
involve a significant increase in the probability or consequences of an accident previously evaluated. -The proposed temperature increase does not significantly decrease the margin of service life of the motors.
The service life of the motors will still exceed the licensed 40 years of plant life and therefore accident evaluations will not be affected by the proposed change.
2.
create the possibility of a new or different kind of accident from any previously analyzed. Since the service life of the. motors will still exceed 40 years, and the equipment'will continue to be available for the licensed life of the plant, no new or different kinds of accidents are created.
3.
involve a significant reduction in a margin of safety. The proposed allowable temperature increase may slightly decrease the overall service lives of the motors in the area; however, the motors will continue to remain environmentally qualified for at'least 40 years.
Therefore, no margins of safety are reduced.
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