ML20147D634

Proposed Tech Specs,Showing Increase in Nonbeltline Portions of Curves of Figures 3.6.1.a & 3.6.1.b

ML20147D634
Person / Time
Site:	Cooper
Issue date:	02/22/1988
From:	NEBRASKA PUBLIC POWER DISTRICT
To:
Shared Package
ML20147D629	List: ML20147D634 ML20147D670 NLS8800063, Forwards Responses to NRC 880113 Questions on Proposed Change 48 & Revised Tech Spec Pages 155 & 156 Showing Increase of 2 F in Nonbeltine Portions of Curves of Figures 3.6.1.a & 3.6.1.b.GE Rept NEDO-24793 Also Encl
References
NUDOCS 8803040076
Download: ML20147D634 (2)

Text

.

1600 I I VAUD TO 12 EFPY B

1400 Adjusted Beltline ll4T FLAW, ART = 110*F 1200 r 1000 W .00 g

E sa w

600 SAFE OPERATING REGION _

4( 0 NON-BELTLINE

• FW NOZZLE LIMITS, 1/4T FLAW, RTNOT

• 30'F 200

/

/ BOLT PRELOAD

/ Itfd!"*R?o"!;'

RTNDT = 20*F 0

O 100 200 300 MINtMUM VESSEL METAL TEMPERATURE l'F)

Figure 3.6.1.a Minimum Temperature for Non-Nuclear Heacup or Core Cooldown Following Nuclear Shutdown 8803040076 880222 155 DR ADOCK0500g8

1600 1

i. VAUD TO 12 EFPY C

1400 t Adjusted Beltline 1/4T FLAW. ART = 110*F 1200 1000 5

5 2

800 E

w a

600 NON-BELTLtNE SAFE FW NOZZLE LIMITS OPERATING PLUS 40*F,1/4T FLAW REGION RTNDT"300F 400 r ,

FLANGE REGION RTNOT = 20'F; MINIMUM PERMISSIBLE 200

• TEMPERATURE = 80*F PER 10CFR50 APPENDIX G

• O O 100 200 300 MINIMUM VESSEL METAL TEMPERATURE (*F) l l

Figure 3.6.1.b Minimum Temperature for Core Operation (Criticality) - '

Includes 400F Margin Required by.10CFR50 Appendix G 156

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