ML20066G042
| ML20066G042 | |
| Person / Time | |
|---|---|
| Site: | LaSalle  |
| Issue date: | 02/12/1991 |
| From: | NRC |
| To: | |
| Shared Package | |
| ML20066G044 | List: |
| References | |
| NUDOCS 9102180183 | |
| Download: ML20066G042 (3) | |
Text
.
REACTOR COOLANT SYSTEM 3/4.4.6 PRESSURE / TEMPERATURE LIMITS 2
REACTOR COOLANT SYSTEM LIMITING CONDITION FOR OPERATION 3.4.6.1 The reactor coolant system tetaperature and pressure shall be limited in accordance with the limit lines chown on Figures 3.4.6.1-1 and 3.4.6.'l-la (1) curves A for hydrostatic or leak testing; (2) curves B for heatup by non-nuclear means, cooldown f0W 'ing a nu-lear shutdown and low power PHYSICS TESTS; and (3) curves C foi operat1~ons. Ath a critical core other than low
. power PHYSICS TESTS, with:
a._
A maximum haatup of 100V in Ay one hour period, b.
A maximum coaldown of 100 F in any one hour period, A maximum tenperature change of less than or equal to 20 F in any
- c.
one hour period during inservice hydrostatic and leak testing-operations above,the heatup and cooldown limit curves, and d.
The reactor vessel flange and head flange temperature greater than or equal to 80 F when reactor vesse' head bniting studs are under tension.
-APPLICABILITY: 'At;all times.*
l ACTION:
With any of the above limits exceeded, restore the temperature and/or pressure to thin the limits within 30 minutes; perform an engineering evaluation to determine'the effects of the'out of-limit condition on the structural integrity
'of the reactor coolant system; determine that the reactor coolant system remains acceptable for continued operations or be in at least HOT SHUTDOWN within112 hours and in COLD SHUTDOWN within the following 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.
L SURVEILLANCE REQUIREMENTS-l l
L 4.4.6.1.1 During system heatup, cooldown and inservice leak and hidrostatic
. testing. operations, the reactor coolant system temperature and pre sure shall be determined to.be within~the above required heatup and cooldown limits and to the right of the limit lines of Figures 3.4.6.1-1 and 3.4.6.1-la curves A or B, as applicabla, at least once per 30 minutes.
I l
- 0uring shutdown conditions for hydrostatic or leak testing or heatup by I
nonnuclear means the-average coolant temperature limit of Table 1.2 for Cold j
l Shutdown and Hot Shutdown may be increased to 212 F.
l l
LA SALLE - UNIT 1 3/4 4-16 Amendment No. 71 9102180183 910212 PDR ADOCK 05000373 y y
P PDR
..