ML20062B274
| ML20062B274 | |
| Person / Time | |
|---|---|
| Site: | South Texas  |
| Issue date: | 10/12/1990 |
| From: | HOUSTON LIGHTING & POWER CO. |
| To: | |
| Shared Package | |
| ML20062B272 | List: |
| References | |
| NUDOCS 9010240198 | |
| Download: ML20062B274 (5) | |
Text
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Ii ATTACHMENT 2 MARK UPS OF PROPOSED CHANGES TO' 4
TECHNICAL SPECIFICATIONS
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4 9010240198 901012 PDR ADOCK 05000498 PNV o-P s...
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~5tidijiii4ENTA ST HL-AE-308 1
DESIGN FEATURES PAGE 1
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0.0185 ok for Region'1 uncertainties and_ tolerances and
_O'0259 ok for Region 2 uncertainties and tolerances.
b.
A nominal 10.95 inches center to center distance between fuel assemblies in Region 1 of the storage racks.and a nominal 9.15 inches center to center distance between fuel assemblies in Region 2 of the storage racks.-
c.
Neutron absorber (Boraflex) installed between spent fuel assemblies in the storage racks in Region 1 and Region 2.
d.
Region 1 of the spent fuel storage racks can be used to store fuel
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which has a U.-235 enrichment less than or equal' to a nominal. 4.5 weight percent.
Region 2 can be used to store fuel which has-achieved sufficient burnup such that storage i.n Region 1 is not required.
The initial enrichment vs. burnup requirements of-Figure 5.6.1 shall;be met prior to storage of fuel assemblies in Region 2.
DRAINAGE 5.6.2 The spent fuel storage pool is designed and shall be maintained t'-
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prevent inadvertent draining of the pool below elevation 62 feet-6 inches..
1 1
L CAPACITY
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'5.6.3 The spent fuel storage pool is designed and shall be maintained with a
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storage capacity limited to-no more than 1969 fuel assemblies.
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j 5.7 COMPONENT CYCLIC OR TRANSIENT LIMIT a
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. L 7al=I.he crnptnentstidentifiedrin-Table:i-7-1-are: designed:and-shalkber
-maintained with-in-the cyclicarctr.ansient-ldntits Ittdable:S c rl.-
i 5 7.1 The components shall be designed and shall be maintained ll within the cyclic / transient limits described in the associated l'
program defined in the Administrative. Controls chapter
( section 6.8.3 )
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l SOUTH TEXAS - UNITS 1 & 2 5-7 Uni.t 1 - Amendment No. 2 i
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.. TABLE 5.7-l'
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COMPONENT CYCLIC OR TRANSIENT LIMITS 5
CYCLIC OR-DESIGN CYCLE-7 COMPONENT TRANSIENT LIMIT OR TRANSIENT E
Reactor Coolant stem
- 200 heatup cycles"at < 100'F/h Heatup cycle - T
-from <
Z and 200 cooldown cycles at to > 550 F.
avg Cooidown cycle - T
[
-< 100 F/h.
>550'Fto<l200F[-
O Pressurizer down cycle at'(pressurizercooldowncycles'
- temperat from > 650*F to
- 200*F/h.
- <;200 80 loss of cycles, without' 5% of RATED THERMAL POWER to immediate Turb '
or Reactor trip.
% of RATED THERMAL POWER.
40 cycles'ofloss\\
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-o fsite loss-of-of fsite A.C. electrical e
A.C. electrical power.
ESF Electrical System.
80 cycles of-loss of in Loss of only one reactor reactor coolan coolant pump.
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100% to 0% of RATED THERMAL POWER..
400. Reactor p.cyc1es.
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10 aux
- ary spray Sp y water temperature differential ac ion cycles.
> 621 g
200 leak tests.
Pressurize 2485 psig.
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10 hydrostatic-pressure tests.
Pressurized-to >
10 psig.
gig,
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Secondary lant System 1 steam 1ine break.
. Break in a > 6-inch ~ steam ine N @m-N a
..10 hydrostatic pressure tests.
Pressurized to > 1600 psig.
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- ATTACHMENT 2 l
ST-HL AE-342 0
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' ADMINISTRATIVE CONTROLSI
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PROCEDURES AND PROGRAMS (Continued)'
e.
Accident Monitoring Instrumentation A program which will ensure the capability to monitor plant variables
.J and systems operating status during and following an accident.
This program shall include-those instruments provided to indicate system operating status and furnish information regarding the release of H
radioactive materials (Category 2 and 3 instrumentation as defined in Regulatory Guide 1.97, Revision 2) and provide the following:
1)
Preventive maintenance and periodic surveillance of instrumen-y
- tation,
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Pre planned operating procedures and backup instrumentation to be used if one or. more monitoring instruments become inoperable, L
.and' it 3)
Administrative procedures-for returning inoperable instruments INSERT A 7 to-0PERABLE status as soon as practicable.
6.9 REPORTING REQUIREMENTS ROUTINE REPORTS 6.9.1 In addition ~ to the applicable' reporting requirements of Title 10, Code of: Federal. Regulations, the following reports shall be submitted to the Regional Administrator of the Regional Office of the NRC 'unless otherwise noted.
STARTUP REPORT i
6.9.1.1 A summary report of plant startup and power escalation testing shall be submitted following:
(1) rece.ipt of.an Operating License, (2) amendment to-p the license > involving a. planned' increase in' power level, (3) installation of-fuel that has;a different design or'has been manufactured by a different fuel 5
ii supplier, and'(4). modifications that may have.significantly altered the nuclear, thermal, or hydraulic. performance'of the unit.
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The Startup Report shall address each of.the tests identified in the Final L
Safety Analysis Report and shall: include a description of the measured values.
of the operating conditions or characteristics,obtained during the test program
'andia comparison of.these values with design predictions and specifications.
Any corrective actions that were.. required to obtain satisfactory operation.shall Jalso'be? described. Any additional specific details required in license condi-tions based on other commitments shall be included in this report, istartup. Reports shall be submitted within:
(1) 90 days following completion of the Startup Test Program, (2) 90 days following resumption or commencement of' commercial power operation, or (3) 9 months following initial criticality,-
whichever is earliest.
If the Startup Report does not cover all three events j
(i.e., initial criticality, completion of Startup Test Program, and resumption -
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or commencement of commercial operation), supplementary reports shall be sub-mitted at least every 3 months until all three events have been completed,
- SOUTH TEXAS - UNITS 1 & 2 6-16 7
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' ATIACHMENT2 J
ST-HL-AE-3 ya S L-PAGE _4 0F V
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INSERT A
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COMPONENT CYCLIC or TRANSIENT LIMIT.
The COMPONENT CYCLIC-or TRANSIENT LIMIT PROGRAM provides
. controls to track the relevant UFSAR.
Table 3.9-8 cyclic / transient occurrnces to ensure that components are maintained within the design limits.
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