ML18030B146
| ML18030B146 | |
| Person / Time | |
|---|---|
| Site: | Browns Ferry  |
| Issue date: | 02/24/1986 |
| From: | Office of Nuclear Reactor Regulation |
| To: | |
| Shared Package | |
| ML18030B147 | List: |
| References | |
| DPR-33-A-125-ER, DPR-52-A-120 NUDOCS 8603030552 | |
| Download: ML18030B146 (3) | |
Text
NOTES FOR TABLE 3.2.A
- l. Whenever the respective functions are required to be operable there shall be two operable or tripped trip systems for each function.
Xf the first column cannot be met for one of the trip systems, that trip system or logic for that function shall be tripped (or the ap-propriate action listed below shall be taken). If the column cannot be met for all trip systems, the appropriate action listed below shall be taken.
A. Initiate an orderly shutdown and have the reactor in Cold Shutdown in 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.
B.
Initiate an orderly load reduction and have Main Steam Lines isolated w1thin eight hours.
C.
Isolate Reactor Water Cleanup System.
D.
Isolate Shutdown Cooling.
E.
Initiate primary containment isolation within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.
F.
The handling of spent fuel vill be prohib1ted and all operations over spent fuels and open reactor wells shall be prohibited.
G.
Isolate the reactor building and start the standby gas treatment system.
H.
Immediately perform a logic system functional test on the loaic in the other trip systems and daily thereafter not to exceed 7 days.
I.
DELETE J.
Withdraw TIP.
K.
Manually isolate the affected lines.
Refer to section 4.2.E for the requirements of an inoperable system.
L. If one SGTS train is inoperable take actions H or h and 7. If two SGTS trains are inoperable take actions A and 7.
- 2. When it is determined that a channel is failed in the unsafe condition, the other channels that monitor the same variable shall be functionally tested immediately before the tr1p system or logic for that function is tripped.
The trip system or the logic for that function may remain untripped for short periods of time to allow functional testing of the other trip system or logic for that function.
l 3.
There are four sensors per steam line of which at least one sensor per trip system must be operable.
4.
Only required in Run Mode (interlocked with Mode Switch) ~
3.
Not required in Run Mode (bypassed by vade switch).
860303055g 860224 Amendment No. g$, ffg, 125 corrected I
PDR ADOCK 05 PDR ADOCK 05000259'
,NOTES FOR TABLE 3.2.A
- 1. Whenever the respective functions are required to be operable there shall be tvo operable or tripped trip systems for each function.
If the first column cannot be met for one of the trip systems, that trip system or logic for that function shall be tripped (or the ap-propriate action listed below shall be taken). If the column. cannot be met for all trip systems, the appropriate action listed below shall be taken.
A. Initiate an orderly shutdovn and have the reactor in Cold Shutdown in 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.
B.
Initfate an orderly load reductfon and have Main Steam Lines isolated vithin eight hours.
C.
Isolate Reactor Mater Cleanup System.
D.
Isolate Shutdovn Cooling.
E.
Initiate primary contafnment isolation vfthin 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.
F.
The handling of spent fuel vill be prohfbfted and all operations over spent fuels and open reactor veils eha11 be prohibited.
G.
Isolate the reactor building and start the standby gas treatment system.
H.
Immediately perform a logic system functional test on the loafe in the other trip systems and daily thereafter not to exceed 7 days.
I.
DELETE J.
Withdrav TIP.
K.
Manually isolate the affected lines.
Refer to section 4.2.E for the requirements of an inoperable system.
L. If one SGTS train ie inoperable take actions 8 or A and F. If two SGTS trains are inoperable take actions A and F.
- 2. When ft is determined that a channel is failed in the unsafe condition, the other channels that monftor the same variable shall be functionally tested fmmediately before the tripsystem or logic for that function is tripped..
The trfp system or the logic for that function may remain untripp'ed for short periods of time to allow functional testing of the other trip system or logic for that function.
3.
There are four sensors per steam line of which at least one sensor per trip system must be operable.
4.
Only required in Run Mode (interlocked with Mode Switch).
5.
Sot required in Run Mode (bypassed hy made switch)
~
'. 60 Amendment No. gg, +g, l20 corrected
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