ML20244B284
| ML20244B284 | |
| Person / Time | |
|---|---|
| Site: | Limerick  |
| Issue date: | 04/10/1989 |
| From: | PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC |
| To: | |
| Shared Package | |
| ML20244B282 | List: |
| References | |
| NUDOCS 8904190102 | |
| Download: ML20244B284 (15) | |
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ATTACHMENT 2-O 1
LIMERICK GENERATING STATION l
DocketiNo. 50-352 License'No. NPF-39' l
l'
. PROPOSED TECHNICAL SPECIFICATIONS' CHANGES l
l List of Attached Change _Pages
.j l
l 3/4 3-2 i
.3/4 3-11
'l 3/4 3-17 3/4 3-18 Li 3/4.3-23 i
3/4 3-27 3/4-4-9 3/4 6-57 3/4 7-11 info only 3/4 7-12 info only-3/4 7-13 3/4 7-14 info only.
3/4-7-15 info only 6-5 1
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TABLE 3'.3.2-1 (Contin'ued)
TABLE NOTATIONS l
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'l (e) Manual. initiation isolstes the steam supply line outboard isolation valve and only following manual or automatic initiation of the system.
'(f)' In the event of a loss of ventilation the temperature - high setpoint may be.
raised by 50 F'for a period not to exceed 30 minutes.to permit U
restoration of the ventilation flow without a spurious trip.
During the 30 minute period, an operator, or other qualified member of the technical staff, shall observe the temperature indications continuously, so that, in the event of rapid increases in temperature, the main steam lines shall be manually isolated.
(g) Wide range accident monitor per Specification 3.3.7.5.
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cr TABLE 3.3.2-3 ISOLATION SYSTEM INSTRUMENTATION RESPONSE TIME TRIP FUNCTION RESPONSE TIME (Seconds)#
1.
MAIN STEAM LINE ISOLATION f
a.
< 13(a)**
1)
Low, Low - Level 2 2)' Low, Low, Low - Level 1 31.0*
Main Steam Line (b) 5 1.0*/$ 13(a)*,
b.
Radiation - Higb
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$ 1.0*/5 13(a),,
. Pressure - Low d.
Main Steam Line 5 0.5*/5 13(*)**
Flow - High I
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f.
Outboard MSIV Room Temperature - High N.A.
l g.
Turbine Enclosure - Main Steam Line Tunnel Temperature - High N.A.
h.
Manual' Initiation N.A.
2.
RHR SYSTEM SHUTDOWN COOLING MODE ISOLATION a.
$ 13(a)
Low - Level 3 b.
Reactor Vessel (RHR Cut-In Permissive) Pressure - High H.A.
c.
Manual Initiation N.A.
3.
REACTOR WATER CLEANUP SYSTEM ISOLATION a.
RWCS 4 Flow - High j 13/#
b.
RWCS Area Temperature - High N.A.
c.
RWCS Area Ventilation 6 Temperature - High H.A.
d.
SLCS Initiation N.A.
e.
Low, Low - Level 2 3 13(a) i f.
Manual Initiation N.A.
l LIMERICK - UNIT 1 3/4 3-23 l
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OPER'ATf0NAL LEAKAGE s
- -LIMITING CONDITION FOR OPERATION --- --
3.4.3.2 Reactor coolant system leakage shall be limited to:
a.
No FRESSURE BOUNDARY LEAKAGE.
b.
5 gpm UNIDENTIFIED LEAKAGE.
c.
30 gpm total leakage.,
d.
25 gpm total leakage averaged over any 24-hour period, 1 gpm leakage at a reactor coolant system pressure of 950 +10 psig from e.
any reactor coolant system pressure isolation valve specified in Table 3.4.3.2-1.
APPLICABILITY:
OPERATIONAL CONDITIONS 1, 2, and 3.
ACTION:
With any PRESSURE BOUNDARY LEAKAGE, be in at least HOT SHUTDOWN within a.
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 next 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />, b.
With any reactor coolant system leakage greater than the limits in b, c and/or d, above, reduce the leakage rate to within the limits within 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-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 /> 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 any reactor coolant system pressure isolation valve leakage c.
greater than the above limit, isolate the high pressure portion of the affected system from the low pressure portion within 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> by use of at least one other closed manual, deactivated automatic, or check
- valves, 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 />.
d.
With one or more of the high/ low pressure interface valve leakage pressure monitors shown in Table 3.4.3.2-1 inoperable, restore the inoperable monitor (s) to OPERABLE status within 7 days or verify the pressure to be less than the alarm setpoint at least once per 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />; restore the inoperable monitor (s) 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 />.
- Which have been verified not to exceed the allowable leakage limit at the last refueling outage or after the last time the valve was disturbed, whichever is more recent.
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-3/4;6.6 PRIMARY CONTAINMENT ATMOSPHERE' CONTROL L
PRIRARY. CONTAINMENT-HYDROGEN RECOMBINER SYSTEMS l LIMITING' CONDITION FOR OPERATION i
3.6.6.1 Two independent primary containment hydrogen recombiner systems shall be L
APPLICABILITY: OPERATIONAL CONDITIONS 1 and 2.
ACTION:
'With one primary containment hydrogen recombiner system inoperable, restore the
~ inoperable system 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 />.
SURVEILLANCE REQUIREMENTS 4.6.6.1 Each primary containment hydrogen recombiner system shall be demonstrated OPERABLE:
a.
At least once per 6 months by performance of:
1.
A CHANNEL CHECK of all Control Room Recombiner Instrumentation.
2.
A Trickle Heat Circuit check.
3.
A Heater Coil Check.
4.
A verification of valve operation by stroking all the valves to their proper positions.
b.
At least once per 18 months by:
1.
Performing a CHANNEL CALIBRATION of all control room recombiner instrumentation and control circuits.
2.
Verifying the integrity of all heater electrical circuits by performing a resistance to ground test within 30 minutes following the below required functional test. The resistance to ground for any heater phase shall be greater than or equal to one (1) megohms.
l 3.
Verifying through a visual examination that there is no evidence of abnormal conditions within the recombiner enclosure; i.e., loose wiring or structural connections, deposits of foreign materials, etc.
4.
Verifying during a recombiner system functional test that the minimum heater outlet gas temperature increases to greater than or equal to 1150 F within 120 minutes and maintained for at least one hour.
c.
By measuring the system leakage rate:
1.
As part of the overall integrated leakage rate test required by Specification 3.6.1.2, or 2.
By measuring the leakage rate of the system outside of the containment isolation valves at P, 44.0 psig, on the schedule required by a
Specification 4.6.1.2, and including the measured leakage as a part of the leakage determined in accordance with Specification 4.6.1.2.
LIMERICK - UNIT 1 3/4 6-57
-PL NT-S EM
/4.'7. 4 SHUBBERS LIMITiNGCONDITIONFOROPERATION 3.7.4 All snubbers shall be OPERABLE.
l APPLICABILITY:
'0PERATIONAL' CONDITIONS 1, 2, and 3.
OPERATIONAL CONDITIONS 4 and 5 for snuobers located on systems required OPERABLE in those OPERATIONAL CONDI!!ONS.
ACTION:
With.one o'r more snubbers inoperable on any system, within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> replace or restore the. inoperable snubber (s) to OPERABLE status and perform an engineering evaluation per Specification 4.7.4g on the attached component or declare the attached system inoperable and follow the appropriate ACTION statement for that L
system.
SURVEILLAliCF REQUIREMENTS i
4.7.4 Eocn snubber shall be demonstrated OPERABLE by performance of the following augmented inservice inspection program and.the requirements of Specification 4.0.5.
a.
Insoection Types As'used in this specification, type of snubber shall mean snubbers of the same design and manufacturer, irrespective of. capacity.
b.
Visual Inspections Snubbers are categorized as inaccessible or accessible during reactor operation.
Each of these groups (inaccessible and accessible) may be inspected independently according to the schedule below.
The first inservice visual inspection of each type of snubber shall be performed after 4 months but within 10 months of commencing POWER OPERATION and snail include all snubbers.
If all snubbers of each type on any system are found OPERABLE during the first inservice visual-inspection, the second inservice visual inspection of that system shall be performed at the first refueling outage. Otherwise, subsequent visual inspections of a given system shall be performed in accordance with the following schedule:
LIMERICK - UMT 1 3/4 7-11
PLANT SYSTEMS SURVEILLANCE REQUIREMENTS (Continued)
/Nra oAACy No. Inoperable Snubber of l
Each Type on Any System Subsequent Visual
(
per Inspection Period Inspection Period *#
f 0
18 months + 25%
)
1 12 months 7 25%
2 6 months 7 25%
3,4 124 days 2 25%
5,6,7 62 days + 25%
8 or more 31 days 2 25%
c.
Visual Inspection Acceptance Criteria l
l Visual inspections shall verify (1) that there are no visible indications i
of damage or impaired OPERABILITY, (2) attachments to the foundation or supporting structure are secure, and (3) fasteners for attachment of the snubber to the component and to the snubber anchorage are secure.
Snubbers which appear inoperable as a result of visual inspections may be determined OPERABLE for the purpose of establishing the next visual 1
inspection interval, providing that: (1) the cause of the rejection is clearly established and remedied for that particular snubber and for i
other snubbers irrespective of type on that system that may be generically susceptible; and/or (2) the affected snubber is functionally tested in the as found condition and determined OPERABLE per l
Specifications 4.7.4f.
For those snubbers common to more than one l
system, the OPERABILITY of such snubbers shall be considered in assessing the surveillance schedule for each of the related systems.
d.
Transient Event Inspection An inspection shall be performed of all snubbers attached to sections of systems that have experienced unexpected, potentially damaging transients, as determined from a review of operational data or a visual inspection of the systems, within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> for accessible systems and 6 months for inaccessible systems following this determination.
In Sddition to satisfying the visual inspection acceptance criteria, freedom-of-motion of mechanical snubbers shall be verified using at least one of the following:
(1) manually induced snubber movement; or (2) evaluation of in-place snubber piston setting; or (3) stroking the mechanical snubber through its full range of travel.
The inspection interval for each type of snubber on a given system shall not be lengthened more than one step at a time unless a generic problem has been identified and corrected; in that event the inspection interval may be lengtnened on step the first time and two steps thereafter if no inoperable snubbers of that type are found on that system.
- The provisions of Specification 4.0.2 are not applicable.
LIMERICK - UNIT 1 3/4 7-12
PLANT SYSTEMS SURVEILLANCE REQUIREMENTS (Continued) e.
Functional Tests 1
During the first refueling shutdown and at least once per 18 months thereafter, a representative sample of snubbers shall be tested using one l
of the following sample plans for each type of snubber. The sample plan shall be selected prior to the test period and cannot be changed during the test period. The NRC Regional Administrator snall be notified in writing of the sample plan selected prior to the test period or the sample plan used in the prior test period shall be implemented:
1)
At least 10% of the total of each type of snubber shall be functionally tested either in-place or in a bench test.
For each snubber of a type that does not meet the functional test acceptance criteria of Specification 4.7.4f., an additional 10% of that type of snubber shall be functionally tested until no more failures are found or'until all snubbers of that type have been functionally tested; or 2)
A representative sample of each type of snubber shall be functionally tested in accordance with Figure 4.7.4-1.
"C" is the total number of snubbers of a type found not meeting the acceptance requirements of Specification 4.7.4f.
The cumulative number of snubbers of a type tested is denoted by "N'.
At the end of each day's testing, the new values of "N" and "C" (previous day's total plus current day's increments) shall be plotted on Figure 4.7.4-1.
If at any time the point plotted falls on or above the " Reject" line all snubbers of that type shall be functionally tested.
If at any time the point plotted falls on or below the " Accept" line, testing of snubbers of that type may be terminated.
When the point pictted lies in the " Continue Testing" region, additional snubbers of that type shall be tested until the point falls in the " Accept" region or the " Reject" region, or all the snubbers of that type have been tested. Testing equipment failure during functional testing may invalidate that day's testing and allow that day's testing to resume anew at a later time, providing all snubbers tested with the failed equipment during the day of equipment failure are retested; or 3)
An initial representative sample of 55 snubbers of each type shall be functionally tested. For each snubber type which does not meet the functional test acceptance criteria, another ample of at least one-half the size of the initial sample shall be tested until the total number tested is equal to the initial sample size multiplied by the factor, 1 + c/2, where "C" is the number of snubbers found which do not meet the functional test acceptance criteria.
The results from this sample plan shall be plotted using an " Accept" line which follows the equation N = 55(1 + c/2).
Each snubber point should be plotted as soon Es the snubber is tested.
If the point plotted falls on or below the " Accept" line, testing of that type of snubber may be terminated.
If the point plotted falls above the
" Accept" line, testing must continue until the point falls on or below the " Accept" line or all the snubbers of that type have been tested.
LIMERICK - UNIT 1 3/4 7-13
FLANT SYSTEMS
" SURVEILLANCE REQUIREMENTS (Continued)
=
W The representative sample selected for the function test sample plans shall be randomly. Selected from the snubbers of each type and reviewed
-before beginning the testing.
The review shall ensure as far as practical that they are representative of the various configurations, operating environments, range of size, and capacity of snubbers of each type.
Snubbers placed in the same locations as snubbers which failed the previous functional test shall be retested at the time of the next functional test but shall not be included-in the sample plan, and failure of this functional test shall not be the sole cause for increasing the sample size under the. sample plan.
If during the functional testing, additional sampling is required due to failure of only one type of snubber, the functional testing results shall be reviewed at the' time to determine if additional samples should be limited to the type of snubber which has failed the functional testing.
f.
Functional Test Acceptance Criteria The snubber functional test shall verify that:
1)
Activation (restraining action) is achieved within the specified range in both tension and compression; 2)
Snubber bleed, or release rate where required, is present in both tension and compression, within the specified range (hydraulic snubbers only);
3)
For mechanical snubbers, the force required to initiate or maintain motion of the snubber is within the specified range in both directions of travel; and 4)
For snubbers specifically required not to displace under continuous load, the ability of the snubber-to withstand load without displacement.
Testing methods may be used to measure parameters indirectly or parameters other than those speci'ied if those results can be correlated to the specified parameters through established methods.
g.
Functional Test Failure Analysis An engineering evaluation shall be made of each failure to meet the functional test acceptance criteria to determine the cause of the failure.
The results of this evaluation shall be used, if applicable, in selecting snubbers to be tested in an effort to determine the OPERABILITY of other snJbbers irrespective of type which may be subject to the same failure mode.
For the snubbers found inoperable, an engineering evaluation shall be
)'
performed on the components to which the inoperable snubbers are attached.
The purpose of this engineering evaluation shall be to determine if the components to which the inoperable snubbers are attached were adversely affected by the inoperability of the snubbers in order to ensure that the component remains capable of meeting the designed service.
- t. lME A t f f UNil 1 3/47-!i i
PLANT' SYSTEMS p
[~ SURVEILLANCE REQUIREMENTS (Continued) 74,jg gMgy If any snubber selected for. functional testing either fails to lock up or fails to move, i.e.,' frozen-in-place, the cause will-be evaluated and if caused by manufacturer or design deficiency all snubbers of the same type subject.to the same defect shall be functionally tested. This testing requirement shall be independent of the requirements stated in Specification 4.7.4e. for snubbers not meeting the functional test ~
p acceptance criteria.
h.
. Functional Testing of Repaired and Replaced Snubbers Snubbers which fail the visual inspection or the functional test acceptance criteria shall be repaired or replaced.
Replacement snubbers and snubbers which have' repairs which might affect the functional test result shall be tested-to meet the functional test criteria'before installation in the unit. Mechanical snubbers shall have met the acceptance criteria subsequent to their most recent service, and the freedom-of-motion test must have been performed within 12 months before being installed in.the unit.
i.
Snubber Service Life Replacement Program Tne service life of all' snubbers shall be monitored to ensure that the service life is not exceeded between surveillance inspections. The maximum expected service life for various seals, springs, and other critical parts shall be' extended or shortened based on monitored test results and failure history. Critical parts shall be replaced so that tne maximum service. life will not be exceeded during a period when the snubber is required to be OPERABLE. The parts replacements shall be documented and the documentation shall be retained in accordance with Specification 6.10.3.
LIMERICK - UNIT 1 3/4 7-15
~; ' zy e
e.
c.; '.
.' TABLE'6.2.2 o-
/*"
' MINIMUM SHIFT CREW COMPOSITION-Er e- - :
TWO UNITS WITH A COMMON CONTROL RDOM-
[: ~
r : +! '
WITH UNIT (2) IN CONDITION 4 OR 5 OR DEFUELED POSITION NUMBER 0F INDIVIDUALS REQUIRED TO FILL POSITION
-CONDITION 1. 2. or 3 CONDITION 4 or 5 l.
SS 1*
l' E
SRO.
1*
1*
R0-2 1
HLO 2
2**
STA 1
' None l
WITH UNIT (2)-IN CONDITION 1, 2, 0R 3 POSITION.
NUMBER OF INDIVIDUALS RE0VIRED TO FILL POSITION CONDITION 1, 2, or 3-CONDITION 4 or 5' SS 1*
1*
SRO 1**
1*
RO 2**
1 NLO 2**
1-STA 1*
None TABLE NOTATIONS
- Individual may fill the same position on'dnit.2.~
- 0ne ofuthe two required individuals may fill the same position on_ Unit 2.
SS - Shift Superintendent or Shift Supervisor with a Senior Operator License on Unit 1.
SRO - Invivioual with a Senior Operator license on Unit 1.
RO Incividual with an Operator license on Unit 1.
NLO - Non-licensed operator properly qualified to support the unit to which assigned.
STA - Shift Technical Advisor j
Except for Shift Supervision (SS), the shift crew composition may be one less than the minimum requirements of Table 6.2.2-1 for a period of time not to exceed 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br />.in order
-to accommodate unexpected aosence of on-duty snift crew members provided immediate action
'is taken to restore the shift crew composition to within the minimum requirements of Table
.6.2.2-1.. This provision does not permit any shift crew position to be unmanned upon shift enange due to an oncoming shift crewman being late or absent.
During'any absence of Shift Supervision (SS) from the control room while the unit is in OPERATIONAL CONDITION 1, 2, or 3, an indivicual (other than the Shift Technical Advisor) with a valid Senior Operator license shall be designated to assume the control room command function. During any absence ?f Shift Supervision from the control room wnile the j
unit is in OPERATIONAL CONDITION 4 or 5 an individual with a valid Senior Operator license or Operator license shall be cesignated to assume the control room command
-function.
LIMERICK - UNIT 1 6-5 I