ML20236H250
| ML20236H250 | |
| Person / Time | |
|---|---|
| Site: | Waterford  |
| Issue date: | 10/27/1987 |
| From: | LOUISIANA POWER & LIGHT CO. |
| To: | |
| Shared Package | |
| ML20236H249 | List: |
| References | |
| NUDOCS 8711040009 | |
| Download: ML20236H250 (4) | |
Text
7
)
a l
+
P 1
)
l i
f ATIACHMENT A NPF-38-69 j
1 4
J B711040009 871027 PDR ADOCK 050003B2 P
Q jJ p
h,.
i-,
ni
'I INSTRUMENTATION 3/4.3.4 iTUR8INE OVERSPEED PROTECTION' LIMITING CONDITION'FOR OPERATION' 3'.3.4 At least one turbine overspeed protection system shall be OPERA 8LE.
APPLICABILITY:
MODES 1, 2*,'and 3*.
ACTION:
lm.
lh
. With one._stop valve or one control valve per.high pressure turbine.
~
a.
l* '
steam lead inoperable and/or with one reheat stop valve or one reheat intercept valve per low pressure turbine steam lead inoperable, restore the inoperable valve (s) 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 close at least one' valve in the affected steam lead or isolate the o
turbine from the steam supply within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />, b.
With the above required overspeed protection system otherwise inoperable, with 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> isolate the turbine from the steam supply.
]
1
. SURVEILLANCE REQUIREMENTS 4.3.4.1.The provisions of Specification 4.0.4 are not applicable.
4.3.4.2_ The above required turbine overspeed protection system shall be demonstrated OPERABLE:
a.
At least once per 31 days by cycling each of the following valves through at_least one complete cycle from the running position, j
+
l 1.
Four high pressure throttle valves.
I
. 2.
Four high pressure governor valves.
3.
Six low pressure reheat stop valves.
4.
Six low pressure reheat intercept valves.
i b.
At least once per 31 days by direct observation of the movement of each of the above valves through one complete cycle from the running
- position, c.
At least once per 18 months by performance of a CHANNEL CALIBRATION on the turbine overspeed protection systems.
l d.
At least once per 40 months by disassembling at least one of each of
)
the above valves and performing a visual and surface inspection'of l
valve seats, disks and stems and verifying no unacceptable flaws or j
corrosion.
)
e.
At_least once per 40 months by inspecting the low pressure turbine discs.
]
l
- With any main steam isolation valve and/or any main steam line isolation i
valve bypass valve not fully closed.
WATERFORD - UNIT 3 3/4 3-68 1
i
g--
h *Ji
.,4
(
t t
e 3-4 l
-l l
1 i
't j
'l 1
l
/ -^
ATTACIIMENT B NPF-38-69 i
l I
i l
i
___-___._____m--___
d-J j
INSTRUMENTATION f
1 3/4.3.4 TUR8INE OVERSPEE0 PROTECTION LIMITING CONDITION FOR OPERATION 3.3.4 At least one ti..'bine overspeed protection system shall be OPERABLE.
APPLICABILITY: MODES 1, 2*, and 3*.
ACTION:
I With one stop valve or one control valve per high pressure turbine j
a.
steam lead inoperable and/or with one reheat stop valve or one reheat intercept valve per low pressure turbine steam lead inoperable, restore the inoperable valve (s) 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 close at least one valve in the affected steam lead or isolate the turbine from the steam supply within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />.
b.
With the above required overspeed protection system otherwise inoperable, with 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> isolate the turbine from the steam supply.
SURVEILLANCE REQUIREMENTS 4.3.4.1 The provisions of Specification 4.0.4 are not applicable.
4.3.4.2 The above required turbine overspeed protection system shall be demonstrated OPERABLE:
4 At least once per 31 days by cycling each of the following valves a.
through at least one complete cycle from the running position.
q 1.
Four high pressure throttle valves.
i 2.
Four high pressure governor valves.
3.
Six low pressure reheat stop valves.
4.
Six low pressure reheat intercept valves.
b.
At least once per 31 days by direct observation of the movement of each of the above valves through one complete cycle from the running g
position.
U c.
At least once per 78 months by performance of a CHANNEL CALIBRATION on the turbine overspeed protection systems.
i il d.
At least once per 40 months by disassembling at least one of each of h
the above valves and performing a visual and surface inspection of-U valve seats, disks and stems and verifying no unacceptable flaws or
[
corrosion.
,,,stm.c c o u s u r 1
e.
At least once per 40Amonths by inspecting thenlow pressure turbine discs, MO A r LE As r onct PER 40 0PU/) TING MOMT*HS 81' lN$PEC TlHG THE /NSTAl-L ED HEA VY l.o ul PRESS URE TURBING b!SCS, I
- With any main steam isolation valve and/or any main steam line isolation valve bypass valve not fully closed.
)
WATERFORD - UNIT 3 3/4 3-68 I
.]