ML20033F075
| ML20033F075 | |
| Person / Time | |
|---|---|
| Site: | Vermont Yankee File:NorthStar Vermont Yankee icon.png |
| Issue date: | 03/05/1990 |
| From: | VERMONT YANKEE NUCLEAR POWER CORP. |
| To: | |
| Shared Package | |
| ML20033F034 | List: |
| References | |
| NUDOCS 9003150407 | |
| Download: ML20033F075 (1) | |
Text
_ _ _ _ _ _ _ _ _ _ _ _.
VYNFS o[-
.4 v
V.
Shutdown - The reactor is in a shutdown condition Y.
Surveillance Fr q s i - Unless otherwise stated when the reactor mode switch is in the shutdown in these specifications, periodic survelliance mode position and no core alterations are being tests, checks, calibrations, and examinations performed. When the mode switch is placed in the shall be performed within the specified shutdown position a reactor scram is initiated, surveillance intervals. These intervals may be mvo power to the control rod drives is removed, and adjusted plus 25%. The operating cycle interval Q'
the reactor protection system trip systems are is considered to be 18 months and the tolerance y
de-energized.
stated above is applicable.
D UI 1.
Hot Shutdown means conditions as above with Z.
Surveillance Interval - The surveillance interval 00-reactor coolant temperature greater that is the calendar time between surveillance tests, 212'F.
checks, calibrations, and examinations to be Q
performed upon an instrument or component when it g
2.
Cold Shutdown means conditions as above with is required to be operable. Ibese tests unless Too reactor coolant temperature equal to or less otherwise stated in these specifications may be E,d" than 212*F.
waived when the instrument, component, or system is not required to be operable, but these tests 3.
Shutdown means conditions as above such that shall be performed on the instrument, component, O
the effective multiplication factor (Kefg) or system prior to being required to be operable.
of the core shall be less than 0.99.
AA.
Vital Fire Sunnression Water Sys_tne - The vital W.
Slaulated_ Automatic Actuation - Simulated fire suppression water system is that part of the automatic actuation means applying a simulated fire suppression system which protects those signal to the sensor to actuate circuit in instruments, components, and systems required to question.
perform a safe shutdown of the reactor. The vital fire suppression system includes the water supply, X.
Ir_ansit_ian Boiline - Transition boiling means the pumps, and distribution piping with associated boiling regime between nucleate and film sectionalizing valves, which provide inusediate boiling. Transition boiling is the regime in coverage of the Reactor Building, Control Room which both nucleate and film boiling occur Building, and Die =1 Generator Rooms.
~
intermittently with neither type being completely stable.
Amendment No. 19,23,63,/I 4
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