ML20003H423
| ML20003H423 | |
| Person / Time | |
|---|---|
| Site: | Browns Ferry  |
| Issue date: | 03/11/1981 |
| From: | Office of Nuclear Reactor Regulation |
| To: | |
| Shared Package | |
| ML20003H424 | List: |
| References | |
| NUDOCS 8105050841 | |
| Download: ML20003H423 (2) | |
Text
e O:
N T:.5 FoK TABLE 3.2.3 (Centinued) 10.
Only one trip system for each cooler fan.
1.1.
In on.ly two of the four 4160 V shutdown boards. See no:s 13.
12.
In only ene of the four 4160 V shutdown boards. See note 13.
- 13. An emergency 4160 V chutdown board is et..tsidered a ::dp sys:e=.
14 pnw pu: p would be inoperable. Refer to sectics 4.5.C for the
.requirenents of a RES*J pump being inoperable.
L5. ne acciden: signal' is the satisf actory complezien of a ene-ou:-ef-tw taken tvies logic of the dryvell high pressure plus lew rese:cr pres sure or the vessel low water level (L.378" above vessil :ero) originating' in th*e core spray sys:em trip system.
16.
he ADS circuitry is capable of acce=plishing its protactive seti:n with one ope:able trip system. Therefore ene ::1p systen =.sy be :aken out of service for functienal testi=g and calibra:1e: !=: a period not.
o exceed 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />.
- 17. Two RPT systems exist, either of which will trip both recirculation pumps. The systems will be individually functionally tested monthly.
If the test period for one RPT system exceeds 2 consecutive hours, the system wil,l' be declared inoperable.
If both RPT systems are inoperable or if 1 RPT system is inoperable for more than 72 consecutive hours, an orderly power reduction shall be initiated and the reactor power shall be less than 85% withir 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br />.
l t
6/05696 l
72 A endment flo. 48 l
l
ym'E5 702 TARLE 3. 2. 5 (Conciaued) 10.
caly one trip system for auch cooler f an.
11.
In only two of the four 4160 V shutdown boards. see note 13.
12.
In ocly one of the four 4160 V shutdown boards. See note 13.
1J.
An emergency 4160 V. shutdown board La considerad a trip syacc:.:.
14 rat.sv pump would be inoperable.
E.sf er to sacties 4.5.C for ti.a' requirsa.ance of a 1315'4 pump beint in rperable.
- 15. ne accident signal is the satis f actory c:=splecian cf a c::,-wt-c!-c4 taken twice loste of the dryvell high pressure plus Icv rcatter pros-sors or the rassel low water level (t 376* above ve;2c1 rero) odgissting is the core spesy systcm trip systas.
- 16. na A'JS circuitry is capable of accomplishing its protective actice with i,ee operable trip systea. Therefore one trip systss ts7 be taken out of service for functional testing and calibratica for a p riod not to exceed 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />.
- 17. Two RPT systens exist, either of which vill trip both recirculatien" pu=ps.
The systens vill be individually functionally tested ncnthly.
If the test period for one RPT systen exceeds 2 consecutive hours, the systen vill be declared 'noperable. If both RPT systens are inoperable or if 1 PST systen is insperable for core than 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br />, an orderly po er reduction shall be initiated and reactor power shall be' less than 85~
vithin 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br />.
&B&gezcy A
d- 'a : No,,4, 46
-