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WASHINGTON, D. C. 20555 April 2, 1984 NOTE T0: Tim Collins, RSB Marty Virgilio, ICSB Allen Notafransesco, CSB John Ridgely, ASB Sang Rhow, PSB Bob Giardina, PSB 4
a Summer Sun, CPB a
Jacques Read, AEB Bill Gammill, METB FROM:
Robert Capra, T/A DSI
SUBJECT:
MEETING WITH MP&L TO DISCUSS THE RESULTS OF NRR'S RE-REVIEW 0F GRAND GULF 1 TECHNICAL SPECIFICATIONS 4
The purpose of this note is to confirm DSI's role in the subject meeting, i
On Wednesday, 04/04/84 at 9:00 am in Room P-ll4, MP&L will meet with each of the technical review branches to discuss the results of our re-review of the Grand Gulf 1 TS. MP&L has not been provided with a copy of our coments. Therefore, at the beginning of the meeting we will hand out a copy of the enclosure to this memorandum. Please be prepared to discuss your comments in the order indicated below:
Time Branch Technical Reviewers 9:00 am RSB Tim Collins ASB John Ridgely PSB Sang Rhow & Bob Giardina CPB Sumer Sun
-i 9:30 am CSB Allen Notafransesco AEB Jacques Read METB To Be Determined In the afternoon, starting at 1:00 pm also in room P-114, MP&L will present
'l to the staff the results of its own internal re-review of the Grand Gulf 1 l
TS. If available, you are welcome to come to the afternoon session.
a A separate meeting with ICSB will be held on 04/11/84.
If you have any questions, please contact me at X-29625.
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Enclosures:
R. Capra As stated cc: R. Mattson DSI ads & BCs L. Kintner 6WT. Nova (
8507200386 850515 PDR FOIA BELL 84-459 PDR N0
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-.._.... _ : J. e NRR Branch coments and recommended changes resulting from its review of Grand Gulf Unit 1.
Technical Speci-fications in Appendix A to the License, as amended through Amendment 12.
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RSB COMMENTS ON GRAND GULF UNIT 1 TECHNICAL ' SPECIFICATION.S 1) 2.2.1 Reactor Protection System Instrumentation Setooints Table 2.2.1-1 Item 3, "R'eactor' Vessei Steam Doine Pressure-High;." The allowable value should be less than or equal to 1045 psig (Referene,e.
r page.5 5 of the SER).
2)
Ba'ses 2.1.2 Thermal Power, High Pressure and High Flow The la'st' paragraph of the text lists a GE report number as NEDO-203040. The correct report number is NEDO-20340.
3) 3.4.2.2 *APRM Setpoints The time constant for the thermal power monitor needs to be included in the LCO's and surveillance requirements.
(Reference page 15-4 of Grano Gulf SER).
4) 3/4.3.3 Emergency Core Cooling System Actuation Instrumentation 1.
Table 3.3.3-2 item B.2.e "LPCI Pump B and C Discharge Pressure -
High" should have the same allowable value as item A.2.f "LPCI Pump A Discharge Pressure - High" which is 115-135 psig, increasing.
2.
Table 3.3.3-3 " Emergency Core Cooling System Response Times" gives the LPCI A & B Pump response time as < 45 seconds.
Table 6.3-1 of the FSAR states that LPCI rated flow is achieved in < 40 seconds for the DBA analysis. The specifi-cation should be changed to read < 40 seconds.
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ASB REVIEW OF GRAND GULF TECHNICAL SPECIFICATIONS The following copies of Grand Gulf Technical Specifications have been marked up to indicate our recomended changes.
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CONTAINMENT SYSTEMS MSIV LEAXAGE CONTROL SYSTEM LIMITING CONDITION FOR OPERATION
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3.6.1.4 Two independent MSIV leakage control system (LCS) subsystems shall be OPERABLE.
APPLICABILITY:
OPERATIONAL CONDITIONS 1, 2 and 3.
ACTION:
With one MSIV leakage control system subsystem inoperable, restore the inoperable subsystem to OPERABLE status within 30 days or be in at least HOT. SHUTDOWN within the next 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> 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 />.
SURVEILLANCE REOUIREMENTS 4.6.1.4 Eac,h MSIV leakage control system subsystem shall be demonstrated OPERABLE:
a.
At least cnce per 31 days by verifying:
1.
Blower OPERABILITY by stirting the blowers from the control room and operating the blowers for at least 15 minutes.
Heater OPERABILITY by#-yby & A.ede43 a J e,$,y- 'a weA cov a--'
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During each COLD SHUTDOWN, if not performed within the previous 92 days, by. cycling each motor operated valve through at least one complete cycle of full travel._
c.
At least once per 18 months by:
' 1.
Performance of a functional test which includes simulated actuation of the subsystem throughout,its operating sequence, and verifying that each automatic valve actuates to its correct position, the blowers start and the heater draws 7.8 to 9.5 amperes per phase.
2.
Verifying that the blower developed at least the below required vacuum at the rated capacity.
a)
Inboard valves,15" + 1" H O at 100 scfm.
2 b)
Outboard valves, 50" + 2" H O at 200 scfm.
2 d.
By verifying the inboard flow, inboard and outboard pressure, and inboard temperature instrumentation to be OPERABLE by performance of a:
1.
CHANNEL CHECK at least once per 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />, 2.
CHANNEL FUNCTIONAL TEST at least once per 31 days, and 3.
CHANNEL CALIBRATION at least once per 18 months.
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?/4_6-7 Amendment No. 9
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3/4.7' PLANT SYSTEMS 3 /4. 7.1 SERVICE VATER SYSTEMS STANDBY SERVICE WATER SYSTEM LIMITING CONDITION FOR OPERATION
' 3.7.1.1 Two independent standby service water (SSW) system subsystems shall be OPERABLE with each subsystem comprised of:
.An OPERABLE flow path capable of taking suction from the associated a.
b.
SSW cooling tower basin and transferring the water through the RHR heat exchangers, ECCS pump room. seal coolers, and associated coolers and pump heat exchangers. -
APPLICABILITY:
OPERATIONAL CONDITIONS 1, 2, 3, 4, 5 and *. -
ACTION:
In OPERATIONAL CONDITION 1, 2 or 3:
With one SSW subsystem inoperable, restore the inoperable a.
1.
subsystem to OPERABLE status within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> or be in at least HOT SHUTDOWN within the next 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> 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 />.
With both SSW subsystems inoperable, be in at least NOT SHUTDOWN 2.
within' the next 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> 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 />.
In OPERATIONAL CONDITION 3 or 4 with the SSV subsystem, which is associated with an RHR loop required OPERABLE by Specification 3.4.9.1 b.
or 3.4.9.2, inoperable, declare the associated RHR loop inoperable and take the ACTION required by Specification 3.4.9.1 or
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3.4.9.2, as applicable.
In OPERATIONA'L CONDITION 4 or 5 with the SSW subsystem, which is associated with an ECCS pump required OPERABLE by Specification 3.5.2, c.
inoperable, declare the associited ECCS pump inoperable and take the ACTION required by Specification 3.5.2.
In OPERATIONAL CONDITION 5 with the SSW subsystem, which is associated with an RHR system required OPERABLE by Specification d.
3.9.11.1 or 3.9.11.2, inoperable, declare the associated RHR system 3.9.11.1 inoperable and take the ACTION required by Specification or 3.9.11.2, as applicable. J.s.& TM rd ry s QWo l
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declare the ' associated diesel generator
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The provisions of Specification 3.0.3 are not applicable.
When handling irradiated fuel in the primary or secondary containment.
l Whenever both SSW subsystems are inoperable, if unable t'o attain
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l as required by this ACTION, maintain reactor coolant temperature as low practical by use of alternate heat removal methods.
Amendment No. 9 3/4 7-1 GRAND GULF-UNIT 1
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PLANT SYSTEMS HIGH PRESSURE CORE SPRAY SERVICE WATER SYSTEM LIMITING CONDITION FOR OPERATION 3.7.1.2, The high pressure core spray (HPCS) service water system shall be OPERABLE with:
9 a.
. One OPERABLE HPCS service water pump, and,
l b.
An OPERABLE low path capable of taking suction from the assoc ~iated
. SSW cooling tower basin and transferring the water through the HPCS service water system heat exchangers.
APPLICABILITY:
OPERATIONAL CONDITIONS 1, 2, 3," 4*, and 5*.
ACTION:
With the HPCS service water system inoperable, declare the HPCS system inoperable and take the ACTION required by Specification 3.5.1 or 3.5.2, as applicable.
SURVEILLANCE REOUIREMENTS
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4.7.1.2 The HPCS service water system shall be demonstrated OPERABLE at least 3
once per 31 days by verifying that each valve, manual, power operated or auto-matic, servicing safety related equipment that is not locked, sealed or otherwise secured in position, is in its correct position.
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PSB COMMENTS AND RECOMMENDATIONS ON GRAND GULF TECHNICAL SPECIFICATIONS 1.
The effective Grand Gulf Technical Specifications do not include the surveillance requirements for the turbine overspeed protection system.
It is our understanding that these Technical Specification requirements were inadvertently left out of the Grand Gulf Technical Specifications issued in June 1982. Therefore, we require that these Technical Speci-fications be incorporated in the Plant Technical Specifications..Because of the uniqueness of the Grand Gulf Turbine Generator system, the word-[.
ing of the turbine overspeed protection system surveillance requirements should be the same as the Commanche Peak turbine overspeed surveillance requirements which has the same type of turbine generator system.
2.
Following are copies of those Grand Gulf Technical Specifiction pages which have been marked with corrections.
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3/4.8 ELECTRICAL POWER SYSTEMS 3/4.8.1 A.C. SOURCES l
A.C. SOURCES - OPERATING l
LIMITING CONDITION'FOR OPERATIDs i
3.8.1.1 As a minimum, the following A.C. electrical power sources shall be OPERABLE:
Two physically independent circuits between the offsite transmission a.
i network and the onsite Class 1E distribution system, and
.g b.
Three separate and independent diesel generators, each. with:
1.
Separate day fuel tanks containing a minimum of 220 gallons 3
of fuel.
j 2.
A separate fuel storage system containing a minimum of:
d a) 48,000 gallons of fuel each for diesel generators 11 and
]
12, and b) 39,000 gallons of fuel for diesel generator 13.
1 i
3.
A separate fuel transfer pump.
APPLICABILITY:
OPERATIONAL CONDITIONS 1, 2, and 3.
p'### ##'"'
ACTION:
a.
With either one offsite circuit or diesel
- generator 11 or'12 of the above required A.C. electrical power sources inoperable ~, demonstrata the OPERABILITY of the remaining A.C. sources by pe.rforming Surveil-lance Requirements 4.8.1.1.1. a c"
-- - 4m nd'4.8.1.1.2.a.4,
- '" and at least 7%;;; tig within
<-- --- eu once per 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> therafter;. restore at least two offsite circuits and diesel generators 11 and 12 to OPERABLE status within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> or be in at least HOT SHUTDOWN within the next 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> 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 b.
With one offsite circuit and diesel generator 11 or 12 of. the above required A.C. electrical power sources inoperable, demonstrate the OPERASILITY of the remaining A.C. sources by performing Surveillance nd 4.8.1.1.2.a.4, fy.
Requirements 4.8.1.1.1.a wilt.ia_:
f8o"u O T and at least once per w..
dimQumu s_w_.m ~..e
%e, within 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> thereafter; restore at least one of the inoperable A.C.
1 sources to OPERABLE status within 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> or be in at least HOT SHUT-
?
DOWN within the next 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> 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 />.
Restore at least two offsite circuits and diesel genera-tors 11 and 12 to OPERABLE status within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> from time of initial loss or be in at least HOT SHUTOOWN within the next 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> 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 />.
"f it in A c e, rd.o. ce w.rh Tio da r " Iic1.1f*C-GRANO GULF-UNIT 1 3/4 8-1 Amendment No. 8, 9
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E'LECTRfCAL POWER SYSTEMS
, LIMITING CONDITION FOR OPERATION (Coni.inued) 1 ACTION.(Continued).
c.
With either diesel generator 11 or 12 of the above required A.C.
electrical power sources inoperable, in addition to ACTION a or b, above as applicable, verify within 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> that all required systems,
. subsystems, trains, components ~ and devices that depend on the l
remaining diesel generator 11 or 12 as a source of emergency power are also OPERABLE; otherwise, be 'in at least HOT SHUTDOWN within' the
. next 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> 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 />.
/cne. Mur i
d d..
With two of the above required offsit.e circuits inoperabIe, i
demonstrate the OPERABILITY of three diesel generators by performing Surveillance Requirement 4.8.1.1.2.a.4, kr :..: di :c1 gem +ar%
l d'th;, within th.cee-hows and at least once per 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> thereafter, unless the diesel generators are already operating; restore at least one of the inoperable offsite circuits to OPERABLE status within
'24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> or be in at least HOT SHUTDOWN within the next 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />.
~
With only one offsite circuit restored to OPERABLE status, restore at least two.offsite circuits to OPERABLE status within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> from time of initial loss or be in at least HOT SHUTDOWN within the next 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> 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 />.
e.
With diesel generators 11 and 12 of the above required A.C.
electrical power sources inoperable, demonstrate the OPERABILITY of the remaining A.C. sources by performing Surveillance Requirements 4.8.1.1.1.a and 4.8.1.1.2.a.4 within one hour and at least once per 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> thereafter; restore at least one of the inoperable diesel generators 11 and 12 to OPERABLE. status within 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> or be in at least HOT. SHUTDOWN within the next 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> 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 />.
Restore both diesel generators 11 and 12 to OPERABLE status within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> from time of initial loss or be in at least HOT SHUTDOWN within the next 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> and in COLD j
SHUTDOWN within the following 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.
1 f.
With diesel generator 13 of the above required A.C. electrical power i
sources inoperable, demonstrate the OPERABILITY of the remaining
)
A.C. sources by performing Surveillance Requirements 4.8.1.1.1.a 4 he, within twn*anu *"
- ne h;g, h
,.8.1.1.2.a.4, 9 - ana M*M-generate- -t1 q
and at least once per 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> thereafter; j]
restore the inoperable diesel generator 13 to OPERABLE status within 1
72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> or declare the HPCS system inoperable and take the ACTION
]
required by Specification 3.5.1.
i A
hkect-y I s.
'.n acc.erdance 5 A S.T.s.
.h.:iu GULF-UNIT 1 3/48-2 Amencment No. 8, 9
~.-.-:.
.. -. =. -
ScY2. 7 h,
At least once per quarter or on a monthly basis [if the ground c.
water table is equal to or higher than the bottom of the tank]
1' by checking for and removing accumulated water from the fuel i
oil storage tanks, l
d.
At least once per 92 days and from new fuel prior to addition',1.o the storage tanks, by obtaining a sample of fuel o'il in accordance. witti i
ASTM-DZ70-1975, and by verifyin; that the sample meets the following i
minimum requirements and is tested within the specified time., limits:
3 1.
As soon as sample is taken ( or prior 'to adding new fuel to'-
fj the storage tank) verify in accordance with the tests specified in. A5}M-D975-77 that the sample has:
a)
A water and sediment content of less than or equal to 0.05
' volume percent.
b)
A kinematic viscosity 9 40*C of greater than or equal To 1.g centistokes, but less than or equal to 4.1 centistokes.
i
~
c)
A specific gravity as specified by the manufacturer 9 60/60*F of greater than or equal to but less than or equal l
to or an API gravity 6 60*F of greater than or equal to degrees but less than or equal to d egre'es.
t 2.
Within one week after obtaining the sample, verify an impurity a
level of less thar) 2 mg of insolubles per 100 ml.
When tested in accordance with ASTM-D2274-70.
~
3.
Within two weeks of obtaining the sample verify that the other properties specified in Table 1 of ASTM-Dg75-77. and Regulatory Guide 1.137 Position 2.a are met when tested.in accordance with ASTM-Dg75-77.
Th;s pag e s he v hA be A Aolad.
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ELECTRICAL POWER SYSTEMS
$URVEILLANCE REQUIREMENTS (ContinuedL h,At least ondf per 92 d nd from gerfoil prior to addition to the r
v tor ge tanks.by veri that a.(a le obtai in accordance with j
s D27'-19'75 ha wa 0
andfe'di t con nt less ffan or equal M
to.05' vol e pe nt affd a kinema e vis sity 40* of g eater than
~
k or eq'ual 1.9 ut less tha'n or edual 4.1 hen an 2 mg/ n a 'ordance sted i 3h g g /
w td AS,-D97 77, and ao/ mpuri le 1 of ss insolubles i
,e/ 100 ml.
hen testVin accor an with eperformedwithin{Vdays TM-2274-70, cept hat i
/
,the tes.t new fuel for impurity evel sh 1 after a ition of the new fuel to the storage tank.
l 2
- e. g.
At least once per 18 months, during shutdown, by:
... {
1.
Subjecting the diesel to an inspection in accordance with pro-
- d cedures prepared in conjunction with its manufacturer's recom-sendations for this class of standby service.
2.'
Verifying the diesel gen cap' ability to reject a load.of b
greater than or equal to (LPCS Pump) for diesel generator kW (RHR B/.C P mp) for diesel t
11, greater than or equal to f
Y d gi generator 12, and greater than or equal to kW (HPCS PUmpW 78o c us for diesel generator 13 while maintaining less than or equal to 75% of the difference between nominal speed and the overspeed o<
trip setpoint, or 15% above nominal, whichever is less.
4 3.
Verifying the diesel generator capability to reject a load of
~
7000 kW for diesel generators 11 and 12 and 3300 kW for diesel 7d D generator 13 without tripping.
The generator voltage shall not exceed 5000. volts during and following the load rejection.
i d*
. y 72#
y" 4.
Simulating a loss of offsite power by itself, and:
g.f
- I a)
For Divisions 1 and 2:
3 1)
Verifying deenergization of the emergency busses and load shedding from the emergency busses.
2)
Verifying the diesel generator starts on the auto-start signal, energizes the emergency busses with permanently
' connected loads within 10 seconds, energizes the auto-connected shutdown loads through the load sequencer and operates for greater than or equal to 5 minutes while its generator is loaded with the shutdown loads.
After ener-gization, the steady state voltage and frequency of the j
emergency busses shall be maintained at 4160 416 volts and 60 21.2 Hz during this test.
b)
For Division 3:
1)
Verifying de-energization of the emergency bus.
2)
Verifying the diesel generator starts on the auto-start i
signal, energizes the emergency bus with.the loads within 10 seconds and operates for greater than or equal to 5 minutes while its generator is loaded with the shutdown loads.
Af ter energization, the steady state voltage and frequency of the emergency bus shall be maintained at 4160.1 416 volts and 60 1 1.2 Hz during this test.
W ND GULF UNIT 1 3/4 8-4 Amendment No. 8, 9
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[ ELECTRICAL POWER SYSTEMS
'E l,D SURVEILLANCE REOUIREMENTS (Continued) s.-
4 8.
Verifying that all automatic diesel generator trips are automatically bypassed upon an ECCS actuation, s gnal except:
]b ForDivisions1and2,engineoverspeefgenerator a) differential current, b h.L o n
. m. %
m...
.2 r
- j" g
.""' w m.,.iu.
- -l b)
For Division 3, engine overspeed and generator differential C.. M
- current,
~
K.
Verifying the ' diesel genera' tor operates for at least 24.hgurs.
J/(
9.
During the first 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> of this test, the diesel generator shall
$1 be loaded to greater than or equal to 7700 kW'for diesel gen-Tl erators 11 and 12 and 3630 kW for diesel generator 13 and during J.E./
the remaining 22 hours2.546296e-4 days <br />0.00611 hours <br />3.637566e-5 weeks <br />8.371e-6 months <br /> of this test, the diesel generator shall t 31
.be loaded to 7000 kW 'or diesel generators 11 and 12 and 3300 kW for diesel generator 13.
The generator voltage and frequency 4160
- 416 volts and 60 t 1.2 Hz within 10 seconds after shall be the start signal; the steady state generator voltage and frequency i
Within shall be maintained within these limits during this test.
5 minutes after completing this 24-hour test, perform Surveillance
)
Requirement 4.8.1.1.2.d.7.a).2) and b).2)".
Verifying that the auto-connected loads to each diesel generator 10.
do not exceed the continuous rating of 7000 kW for diesel generators 11 and 12 and 3300 kW for diesel generator 13.
i 11.
Verifying the diesel generator's capability to:
Synchronize with the offsite power source while the generator i
W; a) is loaded with its emergency loads upon a simulated Yf
. restoration of offsite power, d
'.h[
b)
Transfer its loads to the offsite power source, and Tl c)
Be restored to its standby status, Verifying that with the diesel generator operating in a test d I 12.
mode and connected to its bus that a simulated ECCS actuation
'g.
t 3
signal:
.43 u
-stS Qor Divisions 1 An% 2 ov/errides the test mode b o w e
l f
$9M be" ENr Sk.m'YN EE 8 04UhW far M"%.., wvsr er t
, test mode-by, bypass h 'he l
A 7
b) dh61 geherat'ordutorn_afi..c_.tfips per Surve11)<fice'Requi're-
- 3. b 4.fl-me nt 4. 8.1.1'. 2. di 8.6).
l Verifying that with all diesel generator air start receivers c +-4 13.
. pressurized to less than or equal to 256 psig and the compres-5 #I sors secured, the diesel generator starts at least S times from ambient conditions and accelerates to at least 441 rpm for diesel generators 11'and 12 and 882 rpm for diesel generator 13 in less than or equal to 10 seconds.
I If Surveillance Requirement 4.8.1.1.2.d 4.a)2) or b)2) are not satisfactorily I
n
- Instead, completed, it is not necessary to repeat the preceding 24 h operating temperatures have stabilized.
Amendment No. 8, 9 3/4 8-6
. GRAND GULF-UNIT 1
^
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ELECTP.ICAL POWER SYSTEMS
' SURVEILLANCE ' REQUIREMENTS (Continued 14.
Verifying.that the fuel transfer pump transfers fuel from each.
fuel storage tank to the day tank of each diesel via the installed lines.
15.
Verify'ing that the automatic load sequence tin.er is OPERABLE with the interval be. tween each load block within 10% of its
~
design interval for diesel generators'11 and 12.
~.
16.
Verifying that the following diesel generator Jockout feat res prevent diesel generator starting and/or trip the diesel generator only when required:
a)
Generator loss of excitation.
b)
Generator roverse power.
c)
High jacket water temperature.
d), Generator overcurrent with voltage restraint.
e)
Bus underfrequency (11 and 12 only).
f)
Engine bearing temperature high (11 and 12 only).
g)
Low turbo charger oil pressure (11 and 12 only).
b)
High vibration (11 and 12 only).
1)
High lube oil temperature (11 and 12 only).
i j)
Low lube oil pressure (13 only).
k)
High crankcase pressure.
M At least once per 10 years or after any modifications which could affect diesel generator interdependence by starting all three diesel generators simultaneously, during shutdown, and verifying that the three diesel generators accelerate to at least 441 rpm for diesel generators 11 and 12 and 582 rpm for diesel generator 13 in less than or. equal to 10 seconds.
og./'.
At least once per 10 years by:
f 1.
Draining each fuel oil storage tank, removing.the accumulated sediment and cleaning the tank using a sodium hypochlorite or equivalent solution. and i
2.
Performing a pressure test of those portions of the diesel fuel oil system designed to Section III, subsection ND of the ASME Code ir accordance with ASME Code Section 11, Article IWD-5000, 4.8.1.1.3 Reports - All diesel generator failures, valid or non-valid, shall i
i be reported to the Commission purruant to Specification 6.9.1.
Reports of diesel generator f ailures shall include the information recommended in Regu-latory Position C.3.b of-Regulatory Guide 1.108, Revision 1, August 1977.
If the number of failures in the last 100 valid tests, on a per nuclear unit basis, is greater than er equal to 7, the report shall be. supplemented to include the additional information recommended in Regulatory Position C.3.b of Regulatory Guide 1.108, Revision 1, August 1977.
_ GRAND. GULF-UNIT.1 3/4 8-7 Amendment No. 8, 9
~~I
~
4.;;..
ELECTRICAL POWER SYSTEMS SURVEILLANCE REQUIREMENTS 4.8.2.1 Each of the above required 125-volt batteries and chargers shall be demonstrated OPERABLE:
a.
At least once per 7 days by verifying that:
1.
The parameters in Table 4.8.2.1-1 meet the. Category A limits, and 2.
Total battery terminal voltage is greater than,or equal to' 129-volts on float charge.
b.
At least once per 92 days and within 7 days after a battery discharge with battery terminal voltage below 110-volts, or battery overcharge.
, with' battery terminal voltage above 150-volts, by verifying that:
, 1:
The parameters in Table 4.8.2.1-1 meet the Category B limits, 2.
There is no visible corrosion at either terminals or connectors, or the connection resistance of these items is less than 150 x 10 5 ohms, and 3.
The average electrolyte temperature of every sixth connected cells is above 60*F.
c.
At least once per 18 months by verifying that:
1.
The cells, cell plates and battery racks show no visual indication of physical damage or abnormal deterioration, 2.
The cell-to-cell and terminal connections are clean, tight, free of corrosion and coated with anti-corrosion. material, The resistance of each cell and. terminal connection is less 3.
than or equal to 150 x 10.s ohms, and 4.
The battery charger will supply:
a)
For Divisions 1 and 2, at least 400 amperes at a minimum of 4efir volts for at least e-hours.
l25 8.
b)
For Division 3, at least 50 amperes at a minimum of M5 volts for at least2 hours.
/26 2
' n.ca. d. c d - u f - [5. l.i
- c. c c e.,-at, o., :c. g e ilh 5, r s, GRAND GULF-UNIT 1 3/4 8-11 Amendment No. 8, S
e CPB COMMENTS AND RECOMMENDATIONS FOR CHANGES 3/4.4 3.4.1.1 This Technical Specification, which provides limiting conditions (hou,rs) for operation in natural circulation and with only one recirculation *loopf, is not sufficiently prescriptive to protect against the potential for' the'rmal hydraulic instability. GE recently presented the staff with ' stability test data which denonstrated the occurrence of limit cycle neutron flux oscillations at natural circulation and several percents above the rated i
rod line.
The oscillations were observable on the APRM's and were supressed with control rod insertion.
It was predicted that limit cycle oscillations would occur at the operating condition tested, however; the characteristics of the observed oscillations were different than those previously observed at other stability tests.
Namely, the test data showed that some LPRMs oscillated out of phase with the APRM signal and at an suplitude as great as six times the core average.
GE is preparing a SIL for release soon to alert their plants of these new data and to recommend actions to avoid and. control abnonnal neutron flux oscillation.
The applicant is required to change this specification to properly protect against the potential for thermal hydraulic instability.
3/4. 2.'3 2.2.3 No reference is given ~in the BASES for Figures 3.2.3-1 and 3.2.3-2.
These curves are taken from NEDO-24011, Revision 4 (January 1982) but no reference to this appears in the FSAR.
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CSB COMMENTS AND RECOMMENDATIONS FOR TECHNICAL SPECIFICATION (TS) CHANGES Following are CSB recomended changes for the Grand Gulf TS, assuming the recom-mendations from our last TS review (November 1983) will be adopted. These prior changes have not been incorporated in the present version of the TS.
1.
The following are the CSB's coments and/or recommended modifications l
to the Grand Gulf, Unit 1, Technical Specifications:
r i
(a) Surveillance Requirement Section 4.6.1.2 should be modified
~
as outlined in Attachment 1; (b) Limiting Condition for Operation 3.6.1.9 should be modified to indicate that the 20-inch and 6-inch purge systems shall not be used at the same time; (c) Recarding Table 3.6.4.1, the superscript footnotes (c) and (d) on selected isolation valves should be deleted according to the isolation valves identified with the appropriate schedule as obtained from the raferenced letter; (d) Regarding Surveillance Recuirement Section 4.6.7.?.a. e footnote reference should be added at the end of the werd
" energized" to indicate that a minimum of one igniter on each redundant circuit within a region or enclosure must be demonstrated operable via test.
2.
Surveillance reouirement 4.6.1.2, Item C.1 of the Standard Technical Specifications, which is identical to Item II. A.3.b of Appendix J to 10 CFR Part 50 is not well worded since i# the test is properly per-formed, the difference between the supplemental and the Type A tests can never be 0.25 La. Therefore, it is recommended that Item 4.6.1.2.c.1 of the Standard Technical Specifications and the Grand Gulf Technical Specifications be chanced to read either of the follow-ing two ways:
(a) " Confirms the accuracy of the test by verifying that the containrrent leakage rate, L'v, calculated in accordance with ANSI N 45.4 - 1982, Appendix C, is within P5 percent of the containment leakage rate, Lv, measured prior to the introduction of the superimposed leak"; or, (b) " Confirms the accuracy of the test by verifying that the supplemental test result, Lc, minus the sum of the Type A and the superimposed leak, Lo, are equal to or less than 0.25 La".
v In addition, it is recommeded that Item C.3 of the same surveillance requirements be changed t6 read as follows:
" Requires that the gas injected into the containment or bled from the containment during the supplemental test be between 0.75 La and 1.25 La".
The reason for this change is that Appendix C to ANSI N 45.4 - 197'2,
requires the superimposed leakage rate to be approximately equivalent to La. The new ANSI /ANS 56.8 sets the limits between 0.75 and 1.25 La.
Another item that was uncovered during the re-review is an apparent discrepancy in the acceptance value of the inleakage for the secondary containment. TS Surveillance Requirements Section 4.6.6.1.b.2 indicates a flow rate of 4000 cfm.
Based on conversations with the Accident Evaluation Branch (AEB), the flow rate should be changed to 2300 cfm to be consistent with the AEB evaluation.
In TS 3/4.6.3, the following minor discrepancies between the Tech Spec and the FSAR exist.
1.
Yaxinur suppressior pool water velune:
Tech. Spec. Pace 3/4 6-20 FSAR Table 6.2-50 138,851 cubic feet 138,701 cubic feet 2.
Max / Min equivalent suppression pool water level:
Tech. Spec. Page 3/4 6-20 FSAR Table 6.2-50 18'10" 18'9-3/4" 18'4-3/4" 18'4-1/12" These differences have a negligibly small effect on containment response analyses.
The CSB has also reviewed the TS basis section which summarizes the reasons for the specifications.
Certain parameters in basis Sections 3/4.6.1.7, 3/4.6.2.5 and 3.4.6.3 do not appropriately reflect the main TS sections. Accordingly, we recommend the following changes:
1.
Regarding basis section 3/4.6.1.7, the containment to auxiliary building differential pressure is limited to -0.1 and 1.0 psid rather than -2.0 to 0. psid.
2.
Regarding basis section 3/4.6.2.5, the maximum external drywell pressure differential is limited to 0.1 psid rather than 1.0 psid.
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3-3.
Regarding basis section 3/4.6.3, the minimum suppression pool volume should be 135,291 cubic feet rather than 136,145 cubic feet.
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RAB, METB, AEB COMMENTS ON GRAND GULF TECHNICAL SPECIFIC,ATIONS The RAB, METB and AEB verified the acceptability of the Specificatioils except for the following:
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1.
T.S 3/4 7.2 Plant Systems - Control Room Emerg(TAC #S1863).
ency Filtration System is being reviewed by the AEB and METB staffs Post i
licensing tests indicated excessive leakage of the control room.
Air ficw needed to maintain the specified 1/4" differential pressure was high.
In addition, the location of the air intake could result -
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in excessive concentrations of radioactivity due to poor atmospheric i
dfffusion.
2.
An ambiguity exists between the surveillance requirements of T.S.
3/4 6.6.1 Containment Systems - Secondary Containment Integrity and T. S. 3/4 6.6.3 Containment Systems - Secondary Containment Standby Gas Treatment System. The Containment Systems Branch has the lead with AEB assisting (TAC #51956).
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