ML20136B300
| ML20136B300 | |
| Person / Time | |
|---|---|
| Site: | Arkansas Nuclear  |
| Issue date: | 03/04/1997 |
| From: | ENTERGY OPERATIONS, INC. |
| To: | |
| Shared Package | |
| ML20136B284 | List: |
| References | |
| NUDOCS 9703100234 | |
| Download: ML20136B300 (3) | |
Text
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1 FIGURE 3.1.2-1 RCS INSERVICE IIYDROSTATIC TEST H/U & C/D LIMITS TO 32 EFPY 2400 2200 l
2M
/
2 1800 j
mb b 1600 31400 a
H
@1200 ACCEPTABLE REGION g
< 1000 g
7 8
/
y 800 m
400 200 0
0 50 100 150 200 250 300 350 400 450 500 550 600 RCS COLD LEG TEMPERATURE ( F)
Notes:
1.
This curve is not adjusted for instrument error and shall not be used for operation.
2.
All Notes on Figure 3.1.2-2 are applicable for heatups. This curve is based on a heatup rate of < 90*F/HR.
3.
All Notes on Figure 3.1.2-3 are applicable for cooldowns.
9703100234 970304 PDR ADOCK 05000313 P
PDR Amendment No. M,83,M4, 2Oa
j t.
FIGURE 3.1.2-2 RCS IIEATUP LIMITATIONS TO 32 EFPY
'2400 2200 I
I 2000 f
< 50*F/HR
^
Non-Critical O
g 1800 f
Curve k
< 90'F/HR c
Critical m
f y
[
Curve Q
J j 1400 H
$1200 7
b<
W 1000 5
[
ch d 800 ACCEPTABLE
< 70'F/HR
)
REGION
{g Non-Critical N j
/
l Curve N
[
g 400
///
\\
d
\\
200
< 90ar/HR Non-Critical Curve 0
0 50 100 150 200 250 300 350 400 450 500 550 600 RCS COLD LEG TEMPERATURE (*F)
Notes:
1 1.
These curves are not adjusted for instrument error and shall not be used for operation.
2.
When DHR is in operation with no RCPs operating, the DHR system return temperature shall be used.
3.
RCP Operating Restrictions:
RCS TEMP RCP RESTRICTIONS T > 300*F None 300*F 2 T 2 225'F s3 225*F > T 2 84*F s2 T < 84*F No RCPs operating 4.
Allowable Heatup Rates:
RCS TEMP H/U RATE 60*F < T S 84*F s 15*F/HR T > 84*F As allowed by applicable curve Amendment l'o. 24,83,M4, 20b
i FIGURE 3.1.2-3 RCS COOLDOWN LIMITS TO 32 EFPY 1
2400 2200
/
2000 6
EX 1800 6s j$ 1600 0WJ1400 H
h ACCEPTABLE 1200 H
gggygg 1
f 51000 I
- a
!$g 800 m
mV 600 s
AC 400 200 0
0 50 100 150 200 250 300 350 400 450 500 550 600 RCS COID LEG TEMPERATURE (*19 Notes:
- 1. This curve is not adjusted for instrument error and shall not be used for operation.
- 2. A maximum step temperature change of 25'F is allowable when securing all RCPs with the DHR system in operation. This change is defined as the RCS temperature prior to securing all the RCPs minus the DHR return temperature after the RCPs are secured. When DHR is in operation with no RCPs operating, the DHR system return temperature shall be used.
- 3. RCP Operating Restrictions:
RCS TEMP RCP RESTRICTIONS T > 255'F None 150*F s T s 255*F s2 (See Note 5)
T < 150*F No RCPs operating
- 4. Allowable Cooldown Rates:
RCS TEMP C/D RATE STEP CHANGE T 2 280*F 100*F/HR s 50*F in any 1/2 HR 280*F > T 2 150*F 50*F/HR (See Note 5) s 25'F in any 1/2 HR T < 150*F 25'F/HR s 25'F in any 1 HR
- 5. If RCPs are operated < 200*F, then the RCS cooldown rate from 150*F s T s 180*F is reduced to 30*F in 15 hours1.736111e-4 days <br />0.00417 hours <br />2.480159e-5 weeks <br />5.7075e-6 months <br />.
Amendment No. M,6-3,M4, 20c