ML13291A342
| ML13291A342 | |
| Person / Time | |
|---|---|
| Site: | Indian Point  |
| Issue date: | 09/26/2013 |
| From: | Entergy Nuclear Operations |
| To: | Office of Nuclear Reactor Regulation |
| References | |
| NL-13-130 | |
| Download: ML13291A342 (56) | |
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l!me,secon s; INDIAN POINT UNIT No. 2 LOSS OF ALL AC POWER TO THE STATION AUXILARIES, HIGH Tavg PROGRAM, LOOP 21 AND LOOP 23 STEAM PRESSURE vs TIME UFSAR FIGURE 14.1-50, sht.4 REV. No. 19
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92 93 94 95 96 97 98 99 CALENDAR YEAR ANALYSIS FAILURE LINE
- ACTUAL DATA SV TYPE 1 FAILURE RATE SLOPE OF ANALYSIS FAILURE LINE
= 2.47-06/HR
= [(SY TYPE 1 F.R.) * (OPERATING HOURS)) /
(CALENDAR YEARS)
= [(2.47E-06/HR) * (2.917E+06 HRS)) /
(6.42 CAL. YRS.) = 1. l FAIL/CAL. YR.
INDIAN POINT UNIT No. 2 UFSAR FIGURE 14.1-62 TRACKING 8-95/96 STOP VALVE (SV) TYPE 1 FAILURES STOP VALVE DISC FAILS MIC. No. 2001MB1537 REV. No. 17 A
5 3
I-2 86 87 88 89 90 91 92 93 94 95 96 97 98 99 CALENDAR YEAR
-- ANALYSIS FAILURE LINE
- ACTUAL OAT A SV TYPE 2 FAILURE RATE SLOPE OF ANALYSIS FAILURE LINE
= 2.05-07 /HR
= ((SV TYPE 2 f.R.) * (OPERATING HOURS)] / (CALENDAR YEARS)
= [(Z.OSE-07 /HR} * (2.917E+06 HRS)) / (6.42 CAL. YRS.) = 0.093 FAIL./CAL. YR.
INDIAN POINT UNIT No. 2 UFSAR FIGURE 14.1-63 TRACKING B-95/96 STOP VALVE (SV) TYPE 2 FAILURES STOP VALVE SPRING FAILS MIC. No. 2001MB1538
!REV. No. 17A
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86 87 88 89 90 91 92 93 94 95 96 97 98 99 CALENDAR YEAR ANALYSIS FAILURE LINE
- ACTUAL OAT A SY TYPE 3 FAILURE RATE
= 2.05-07 /HR SLOPE OF ANALYSIS FAILURE LINE
= ((SV TYPE 3 F.R.) "' (OPERATING HOURS)] /
(CALENDAR YEARS)
= ((2.0SE-07 /HR) "' (2.917E+06 HRS)) /
(6.42 CAL. YRS.) = 0.093 FAIL/CAL. YR.
INDIAN POINT UNIT No. 2 UFSAR FIGURE 14.1-64 TRACKING B-95/96 STOP VALVE (SV) TYPE 3 FAILURES STOP VALVE STICKS OPEN MIC. No. 2001MB1539
!REV. No. 17A
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CALENDAR YEAR ANALYSIS FAILURE LINE
- ACTUAL OAT A CV TYPE 4 FAILURE RATE SLOPE OF ANALYSIS FAILURE LINE
= 1.22-06/HR
= [(CV TYPE 4 F.R.) * (OPERATING HOURS)) /
(CALENDAR YEARS)
= [(1.22E-06/HR) * (3.925E+06 HRS)] / (6.42 CAL. YRS.) = 0.75 FAIL/CAL. YR.
INDIAN POINT UNIT No. 2 UFSAR FIGURE 14. 1 -65 TRACKING B-95/96 CONTROL VALVE (CV) TYPE 4 FAILURES CONTROL VALVE SPRING BOLT FAILS MIC. No. 2001MB1540 REV. No. 17A
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86 87 88 89 90 91 92 93 94 95 96 97 98 99 CALENDAR YEAR ANALYSIS FAILURE LINE
- ACTUAL DATA CV TYPE 5 FAILURE RATE
= 1.53-07 /HR SLOPE OF' ANALYSIS FAILURE LINE
= [(CV TYPE 5 F.R.) * (OPERATING HOURS)) /
(CALENDAR YEARS)
= [(1.53E-07 /HR) * (3.92SE+06 HRS)] /
(6.42 CAL. YRS.) = 0.094 FAIL./CAL. YR.
INDIAN POINT UNIT No. 2 UFSAR FIGURE 14.1-66 TRACKING B-95/96 CONTROL VALVE (CV) TYPE 5 FAILURES CONTROL VALVE STICKS OPEN MIC. No. 2001MB1541 I REV. No. 17A
1E Initial Case
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WHEN JUSTIRED USING THE APPROPRIATE CURVE, NOMINAL TEST INTERVALS UP TO 3 MONTHS ARE RECOMMENDED.
Turt>Jn* Valve Test Interval (months)
Curve #1:
SlUVeillaoce of stop valve discs occurs every 18 months. Testing of valve freedom of movement oocurs at inteJVals of 1 to 6 months (horizonlal axis).
Curve 12:
Surveillance of stop valve discs occurs every 24 months. Tt.sting of valve freedom of movement occurs at intervals of 1 to 6 months (horizontal axis).
Estimated 3.7E-06/r for 3 month test interval for Curve #2 INDIAN POINT UNIT No. 2 UFSAR FIGURE 14.1-67 ANNUAL FREQUENCY OF DESTRUCTIVE OVERSPEED FOR VARIOUS BB-95/96 TURBINE VALVE TEST INTERVAL (1-0N-1 SV-CV TURBINE / 1 OUT OF 4 STEAM PATHS)
MIC. No. 2001MB1542 REV. No. 17A