ML20094Q352
| ML20094Q352 | |
| Person / Time | |
|---|---|
| Site: | Millstone  |
| Issue date: | 08/02/1984 |
| From: | John Miller Office of Nuclear Reactor Regulation |
| To: | |
| Shared Package | |
| ML20094Q354 | List: |
| References | |
| TAC-08952, TAC-8952, NUDOCS 8408200164 | |
| Download: ML20094Q352 (29) | |
Text
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UNITED STATES y
?,
NUCLEAR REGULATORY COMMISSION i
c.
j-WASHINGTON. D. C. 20555 l
%,...../
NORTHEAST NUCLEAR ENERGY COMPANY THE CONNECTICUT LIGHT AND POWER COMPANY THE WESTERN' MASSACHUSETTS ELECTRIC COMPANY DOCKET NO. 50-336 MILLSTONE NUCLEAR POWER STATION, UNIT NO. 2 AMENDMENT TO FACILITY OPERATING LICENSE Amendment No. 96 License No. DPR-65 1.
The Nuclear Regulatory Comission (the Comission) has found that:
A.
The application for amendment by Northeast Nuclear Energy Company, et al. (the licensee) dated January 18, 1984 complies with the standards and requirements of the Atomic Energy Act of 1954, as amended (the Act) and the Comission's rules and regulations set forth in 10 CFR Chapter I; B.
The facility will operate in conformity with the application, the provisions of the Act, and the rules and regulations of the Commission; C.
There is reasonable assurance (i) that the activities authorized by this amendment can be conducted without endangering the health and safety of the public, and (ii) that such activities will be conducted in compliance with the Comission's regulations; D.
The issuance of this amendment will not be inimical to the comon defense and security or to the health and safety of the public; and E.
The issuance of this amendment is in accordance with 10 CFR Part 51 of the Comission's regulations and all applicable requirements have been satisfied.
o!oO$036 PDR
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2.
Accordingly, the license is amended by changes to the Technical Specifications as indicated in the attachment to this license amendment, and paragraph 2.C.(2) of Facility Operating License No. DPR-65 is hereby amended to read as follows:
(2) Technical Specifications The Technical Specifications contained in Appendices A and B, as revised through Amendment No. 96, are hereby incorporated in the license.
The licensee shall operate the facility in accordance with the Technical Specifica-tions.
3.
This license amendment is effective on the date of issuance.
FOR THE NUCLEAR ' REGULATORY COMMISSION s
. Miller, Chief Operating Reactors Branch #3 Division of Licensing
Attachment:
4 Changes to the Technical Specifications i
Date of Issuance:
August 2, 1984 i
i
u, 9
ATTACHMENT TO LICENSE AMENDMENT NO. 96
~
FACILITY OPERATING LICENSE NO. DPR-65 DOCKET NO. 50-336 Remove and replace the following pages of the Appendix A Technical Specifica-tions with the enclosed pages. The revised pages are identified by amendment number and contain vertical lines indicating the area of change.
The corre-sponding ove'rleaf pages are provided to maintain document completeness.
Remove Insert VII VII XI XI 3/4 7-21 3/4 7-21 3/4 7-22 3/4 7-22 3/4 7-22a 3/4 7-23 3/4 7-23 3/4 7-24 3/4 7-24 3/4 7-25 3/4 7-25 3/4 7-26 3/4 7-26 3/4 7-27 3/4 7-27 3/4 7-28 3/4 7-28 3/4 7-29 3/4 7-29 3/4 7-29a 3/4 7-29b 3/4 7-29c 3/4 7-29d 3/4 7-29e 3/4 7-29f 3/4 7-30 3/4 7-30 3/4 7-31 3/4 7-31 3/4 7-32 3/4 7-32 B 3/4 7-5 8 3/4 7-5 B 3/4 7-6 B 3/4 7-6 8 3/4 7-7 8 3/4 7-7 l
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6 INDEX LIMITING CONDITIONS FOR OPERATION AND SURVEILLANCE REQUIREMENTS i
SECTION PAGE
~
3/4.7 PLANT SYSTEMS 3/4.7.1 TUR8INE CYCLE.........................................
3/4 7-1 S a fe ty Va l ve s......................................... 3/ 4 7-1 Auxiliary Feedwater Pumps.............................
3/4 7-4 l
S team Generator Wate r Addi tion........................ 3/4 7-5
.j Condensate Storage Tank...............................
3/4 7-6
-l Activity..............................................
3/4 7-7 i
Main Steam Line Isolation Valves......................
3/4 7-9 3/4.7.2 STEAM GENERATOR PRESSURE / TEMPERATURE LIMITATION.......
3/4 7-10 3/4.7.3 REACTOR BUILDING CLOSED COOLING WATER SYSTEM..........
3/4 7-11 3/4'. 7.4 S ERVICE WATER SYSTEM.................................. 3/4 7-12 3/4.7.5 FLOO D LEVEL........................................... 3/4 7-13 3/4.7.6 CONTROL ROOM EMERGENCY VENTILATION SYSTEM.............
3/4 7-16 3/4.7.7 SEALED SOURCE CONTAMINATION...........................
3/4 7-19 3/4.7.8 S N U B B E RS.............................................. '. 3/ 4 7-21 3/4.7.9 FIRE SUPPRESSION SYSTEMS.............................. 3/4 7-33 Fi re Suppres sion Water System......................... 3/4 7-33 Spray and/or Sprinkler Sys tems........................ 3/4 7-37 Fi re Hos e S ta tio ns....................................
3/4 7-39 3/4.7.10 PENETRATION FIRE BARRIERS.............................
3/4 7-41 3/4.8 ELECTRICAL POWER SYSTEMS 3/4.8.1 A.C. SOURCES..........................................
3/4 8-1 O p e ra t i n g.............................................
3 / 4 8 - 1 Shutdown..............................................
3/4 8-5 3/4.8.2 ONSITE POWER DISTRIBUTION SYSTEMS.....................
3/4 8-6 I
A.C. Distribution - Operating.........................
3/4 8-6 A.C. Distribution - Shutdown..........................
3/4 8-7 D.C. Distribution - Operating.........................
3/4 8-8 D.C. Distribution - Shutdown.......................... 3/4 8-10 i
MILLSTONE-UNIT 2 VII Amendment No. JJ, 35, 9 6 i
6
J a
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c INDEX l
l LIMITING CONDITIONS FOR OPERATION AND SURVEILLANCE REQUIREMENTS SECTION PAGE 3/4.9 REFUELING OPERATIONS e
3/4.9.1 BORON CONCENTRATION....................................
3/4 9-1 i
3/4.9.2 INSTRUMENTATION........................................
3/4 9-2 3/4.9.3 DECAY TIME.............................................
3/4 9-3 3/4.9.4 CONTAINMENT PENETRATIONS...............................
3/4 9-4 3/4.9.5 COMMUNICATIONS.........................................
3/4 9-5 3/4.9.6 CRANE OPERABILITY - CONTAINMENT BUILDING...............
3/4 9-6 3/4.9.7 CRANE TRAVEL - SPENT FUEL STORAGE POOL BUILDING........
3/4 9-7 3/4.9.8 SHUTDOWN COOLING AND COOLANT CIRCULATION...............
3/4 9-8 l
3/4.9.9 CONTAINMENT RADIATION MONITORING.......................
3/4 9-9 3/4.9.10 CONTAINMENT PURGE VALVE ISOLATION SYSTEM..............., 3/4 9-10 3/4.9.11 WATER LEVEL - REACTOR VESSEL...........................
3/4 9-11 3/4.9.12 STORAGE POOL WATER LEVEL...............................
3/4 9-12 i
3/4.9.13 STORAGE POOL RADIATION M0NITORING......................
3/4 9-13 1
3/4.9.14 STORAGE POOL AREA VENTILATION SYSTEM -
i FUEL M0VEMENT........................................
3/4 9-14 N i
I 3/4.9.15 STORAGE P0OL AREA VENTILATION SYSTEM -
FUEL ST0 RAGE.........................................
3/4 9-16 3/4.9.16 SHIELDED CASK.........................................
3/4 9-19 3/4.10 SPECIAL TEST EXCEPTIONS 3/4.10.1 SHUTDOWN MARGIN........................................
3/4 10-1 3/4.10.2 GROUP HEIGHT AND INSERTION LIMITS......................
3/4 10-2 3/4.10.3 PRESSURE / TEMPERATURE LIMITATION - REACTOR CRITICALITY..........................................
3/4 10-3 ll 3/4.10.4 PHYSICS TESTS..........................................
3/4 10-4 3/4.10.5 CENTER CEA MISALIG M ENT................................
3/4 10-5 MILLSTONE - UNIT 2 VIII Amendment No. 69 q
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l INDEX BASES SECTION PAGE 3/4.6 CONTAINMENT SYSTEMS i
3/4.6.1 PRIMARY CONTAINMENT..................................
B 3/4 6-1 r
3/4.6.2 DEPRESSURIZATION AND COOLING SYSTEMS.................
B 3/4 6-3 i
3/4.6.3 CONTAINMENT ISOLATION VALVES.........................
B 3/4 6-3 3/4.6.4 COMBUSTIBLE GAS CONTR0L..............................
B 3/4 6-4 i
3/4.6.5 SECONDARY CONTAINMENT................................
B 3/4 6-5 l
l l
i l
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MILLSTONE - UNIT 2 XI
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INDEX i
BASES SECTION PAGE 3/4.7 PLANT SYSTEMS 3/4.7.1 TURBINE CYCLE......................................... B 3/4 7-1 3/4.7.2 STEAM GENERATOR PRESSURE / TEMPERATURE LIMITATION....... B 3/4 7-3 3/4.7.3 REACTOR BUILDING CLOSED COOLING WATER SYSTEM.......... B 3/4 7-3 3/4.7.4 S ERVICE WATER SYSTEM.................................. B 3/4 7-4 3/4.7.5 FLOO D L EV EL........................................... B 3/4 7-4 3/4.7.6 CONTROL ROOM EMERGENCY VENTILATION SYSTEM............. B 3/4 7-4 3/4.7.7 SEALED SOURCE CONTAMINATION........................... B 3/4 7-5 3/4.7.8 S N U BB E RS.............................................. B 3 / 4 7-5 3/4.7.9 FIRE SUPPRESSION SYSTEMS.............................. B 3/4 7-7 3/4.7.10 PENETRATION FIRE BARRIERS............................. B 3/4 7-7 3/4.8 ELECTRICAL POWER SYSTEMS................................. B 3/4 8-1 3/4.9 REFUELING OPERATIONS 3/4.9.1 BORON CONCENTRATION................................... B 3/4 9-1 3/4.9.2 INSTRUMENTATION............................'........... B 3/4 9-1 i
j 3/4.9.3 DECAY TIME............................................ B 3/4 9-1 3/4.9.4 CONTAINMENT PENETRATIONS.............................. B 3/4 9-1 1
3/4.9.5 COMMUN I CATIONS........................................ B 3/4 9-1 j
3/4.9.6 CRANE OPERABILITY - CONTAINMENT BUILDING.............. B 3/4 9-2 3/4.9.7 CRANE TRAVEL - SPENT FUEL STORAGE BUILDING............ B 3/4 9-2 3/4.9.8 SHUTDOWN COOLING AND COOLING CIRCULATION.............. B 3/4 9-2 MILLSTONE-UNIT 2 XII Amendment NJ. J7, 35, if, 9 6 l
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PLANT SYSTEMS 3/4.7.8 SNUBBERS l
I LIMITING CONDITION FOR OPERATION 3.7.8.1 All snubbers listed in Tables 3.7-la and 3.7-lb shall be OPERABLE.
l APPLICABILITY As shown in Tables 3.7-la and 3.7-lb.
l ACTION As shown in Tables 3.7-la and 3.7-lb.
l SURVEILLANCE REQUIREMENTS 4.7.8.1 Each snubber shall be demonstrated OPERABLE by performance of the following augmented inservice inspection program and the requirements of Specification 4.0.5.
a.
Visual Inspection Visual inspections shall be performed in accordance with the inspection schedule listed in Table 4.7-3.
b.
Visual Inspection Acceptance Criteria 1
i Visual inspections shall verify:
(1) that there are no visible indications of damage or impaired OPERABILITY and (2) attachments to the foundation or supporting structure are secure. Snubbers which appear inoperable as a result of visual inspections may be determined OPERABLE for the purpose of establishing the next visual inspection interval, provided that:
I 1
1.
The cause of the rejection is clearly established and remedied for that particular snubber and for other snubbers irrespective
)
,j of type that may be generically susceptible; and 2.
The affected snubber is functionally tested in the as found l
condition and determined OPERABLE per Specifications 4.7.8.1.d or 4.7.8.1.e. as applicable.
I All snubbers connected to an inoperable common hydraulic fluid reservoir shall be counted as inoperable snubbers.
MILLSTONE-UNIT 2 3/4 7-21 Amendment No. JJ, AJ, 52, 9 6 r
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+
PLANT SYSTEMS SURVEILLANCE REQUIREMENTS (Continued)
- )
c.
Snubber Tests At least once per eighteen (.18) months during shutdown, a represen-tative sample (10% of the total of each type of snubber, mechanical and hydraulic, except steam-generator hydraulic snubbers in use in the plant) shall be tested either in place or in a bench test.
For
- i each snubber that does not meet the test acceptance criteria of
~
Specification 4.7.8.1d or 4.7.8.le, as applicable, an additional
.jj 10% of that type of snubber shall be tested.
Testing shall continue until no additional inoperable snubbers are R
found within a sample or until all snubbers in Tables 3.7-la and
- l 3.7.1-b have been tasted. The representative sample selected for testing shall include the various configurations, and the range of 4
size and capacity of snubbers.
Snubbers identified in Tables 3.7-la and 3.7-lb as "Especially Difficult to Remove" or in "High Radiation Zones During Shutdown" shall also be included in the representative sample.* Tables 3.7-la and 3.7-lb may be used jointly or separately as the basis for the sampling plan.
In addition to the regular sample, in locations where snubbers had failed the previous test due to operational or environagental condi-tions (excessive vibration, water hamer, high radiation, extreme i
heat or humidity, etc.), the snubbers currently installed in these locations shall be tested during the next test period. Test results of these snubbers may not be included for the resampling. All replacement snubbers shall have been tested prior to installation.
1.
j All steam generator hydraulic snubbers shall be tested and refur-bished every seven years or less in accordance with the preventative maintenance program, in lieu of the functional test require..ents of this specification.
I If any snubber selected for 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 design deficiency, all snubbers of the same t-design subject to the same defect shall be tested regardless of i'
location or difficulty of removal. This testing requirement shall l;
be independent of the requirements stated above for snubbers not meeting the test acceptance criteria.
Li
!d i'
l1
- Permanent or other exemptions from functional testing for individual snubbers
'I in these categories may be granted by the Comission only if a justifiable j
basis for exemption is presented.
i I
MILLSTONE-UNIT 2 3/4 7-22 Amendment No. JJ, #, #2 0 $
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a PLANT SYSTEMS
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SURVEILLANCE REQUIREMENTS (Continued)
)
For the snubber (s) found inoperable, an engineering evaluation shall be performed on the components which are supported by the snubber (s).
The purpose of this engineering evaluation shall be to determine if the components supported by the snubber (s) were adversely affected by the inoperability of the snubber (s) in order to ensure that the supported component remains capable of meeting the designed service.
j d.
Hydraulic Snubbers Functional Test Acceptance Criteria The hydraulic snubber functional test shall verify that:
)
1.
Activation (restraining action) is achieved within the speci-j fied range of velocity or acceleration in both tension and compression.
2.
Snubber bleed, or release rate, where required, is within the specified range in compression or tension.
e.
Mechanical Snubbers Functional Test Acceptance Criteria
- The mechanical snubber functional test shall verify that:
1.
The force that initiates free movement of the snubber rod in either tension or compression is less than the specified maximum drag force.
2.
Activation (restraining action) is achieved within the speci-fied range of velocity or acceleration in both tension and compression.
f.
Snubber Service Life Monitoring A record of the service life of each snubber, the date at which the designated service life commences and the installation and mainte-nance records on which the designated service life is based shall be maintained as required by Specification 6.10.2.h.
Concurrent with the first inservice visual inspection and at least once per 18 months thereafter, the installation and maintenance records for each snubber listed in Tables 3.7-la and 3.7-lb shall be reviewed to verify that the indicated service life has not been j
exceeded or will not be exceeded prior to the next scheduled snubber service life review.
If the indicated service life will be exceeded j
prior to the next scheduled service life review, the snubber service l
life shall be reevaluated or the snubber shall be replaced or recon-ditioned so as to extend its service life beyond the date of the j
next scheduled service life review. This reevaluation, replacement 1
or reconditioning shall be indicated in the records.
- Mechanical snubber functional test acceptance criteria shall become effective upon installation of snubber testing equipment but not later than June 30, 1985.
MI'.LSTONE-UNIT 2 3/4 7-22a Amendment No. S 6
I TABLE 3.7-la j
3 SAFETY RELATED HYDRAULIC SNUBBERS
- l r!
F
}.
$Q ACCESSIBLE HIGH ESPECIALLY
.~j HANGER SYSTEM, LOCATION OR RADIATION DIFFICULT' APPLICABLE r
j i
T NO. (1)
AND ELEVATION INACCESSIBLE ZONE **
TO REMOVE MODES (3)
ACTION
.jl E
(A or I)
(Yes or No)
(Yes or No) a R1 312015(2)
MS-4N/41W/+66 I
No Yes 1, 2, 3 1
m g' g 312016 (2)
MS-4N/41E/+66
/
I No Yes 1, 2, 3 1
1 i,
312017 MS-4N/41E/+64 I
No Yes 1, 2, 3 1
312018 MS-4N/41W/+64 I
No Yes 1, 2, 3 1
'll 312019 MS-4N/41E/+63 I
No Yes 1, 2, 3 1
3 Mi 401008 CS-F.2/18.9/-37 A
Yes No 1, 2, 3, 4 1
fi
(*21 M
401024 CS-F.8/17.7/-30 A
No No 1, 2, 3, 4 1
??I Y
?i 0
401025(2)
HPSI-H.2/17.2/-30 A
No No 1, 2, 3, 4 1
- H Sri 401106 HPSI-H.4/17.7/-11 A
No Yes 1, 2, 3, 4 1
- . 4 401107 HPSI-H.4/17.7/-13 A
No Yes 1, 2, 3, 4 1
]y 402009 SDC-F.2/18.9/-32 A
Yes No 6
3 g.
g 402013 HPSI-F.3/18.9/-40 A
Yes No 1, 2, 3, 4 1
l 5
402022 LPSI-F.2/18.1/-31 A
Yes No 1,2,3(+),6 4
> \\l 5
4 402056 (2).
CS-H.4/17.6/-32 A
Yes No 1,2,3(+),6 4
.A U-Li 402083 CS-H.4/18.4/-20 A
No Yes 1,2,3(+)
1 if.)!
402100 SIT-42S/41W/+25 I
No No 1,2,3(+)
1 4
- i 8
m es...
m -. -
y _m m._
u-a TABLE 3.7-la (Continued) l SAFETY RELATE 0 HYORAULIC SNUBBERS
- l G
d ACCESSIBLE IIIGl ESPECIALLY R
HANGER SYSTEM, LOCATION OR RADIATION DIFFICULT -
APPLICABLE f.
NO. (1)
AND ELEVATION INACCESSIBLE ZONE **
TO REMOVE MODES (3)
ACTION' P
5 (A or I)
(Ves or No)
(Yes or No) i
--i
( --
402113(2)
SDC-18S/50W/-2 I
Yes No 6
3 i
402115(2)
SCD-18S/50W/+3 I
Yes No 6
3 403068 SFP-E.5/18.1/-36 A
Yes No See Note 4 5
403070 SFP.L.5/18.9/+10 A
Yes No See Note 4 6
403090 SFP-M.4/18.9/+7 A
Yes No See Note 4 6
a g
405388 MS-E.5/19.6/+53 A
No No 1, 2, 3 1
7' 405618 (2)
RBCCW-J.7/16.6/-13 A
No No 1, 2, 3, 4 1
410004 (2)
HPSI-57S/10W/-13 I
No No 1, 2, 3, 4 1
410012 SIT-27S/42W/+13 I
Yes No 1,2,3(+)
1 410014 SIT-30S/47W/+15 I
No No 1,2,3(+)
1 410015 SIT-30S/47W/+15 I
No No 1,2,3(+)
1 410017 SIT-38S/48W/+1 I
No No 1,2,3(+)
1 i
a 410019 SIT-32S/47W/+8 I
No No 1,2,3(+)
1 b
410021 SIT-6N/47W/+9 I
No No 1,2,3(+)
1 m
410022 SIT-9N/62W/+5 I
No No 1,2,3(+)
l' 410027 SIT-6N/47W/+10 I
No No 1,2,3(+)
1 410028 SIT-6N/47W/+15 I
No Yes 1,2,3(+)
1
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z l
f TABLE 3.7-la (C ntinued) sn n'
d SAFETY RELATED HYDRAULIC SNUBBERS
- I E
E-ACCESSIBLE HIGH ESPECIALLY I.l 5
HANGER SYSTEM, LOCATION OR RADIATION DIFFICULT APPLICABLE I
NO. (1)
AND ELEVATION INACCESSIBLE ZONE **
TO REMOVE MODES (3)
ACTION
.,l1 (A or I)
(Yes or No)
(Yes or No)
,[j 410029 SIT-6N/47W/+15 I
No No 1, 2, 3(+)
1 410031 (2)
SIT-lN/37W/+15 I
Yes No 1,2,3(+)
1
..-f Q
410061 SDC-20S/28W/-5 I
Yes Yes 6
3 7;Bi 410065(2)
SIT-53S/33E/-4 I
No Yes 1,2,3(+)
1 410067 SIT-305/47E/+6 I
No No 1,2,3(+)
1 v.
,:}
410083 SIT-305/54E/-1 I
No No 1,2,3(+)
1
.n Ip
[
410086(3)
SIT-305/47E/+15 I
No 1 Yes, 2 No 1,2,3(+)
I g
hg) 410103 SIT-llN/61W/+5 I
No No 1,2,3(+)
1 411030 (2)
FW-E.5/23.0/50 A
No No~
1,2,3(2) 2
,.y si 60025 FW-E.0/22.0/40 A
No No 1,2,3(2) 2 LI)N 60026 FW-E.0/20.0/33 A
No No 1,2,3(2) 2 f>
d g
412002 MS-4N/41W/+63 I
No Yes 1, 2, 3 1
x1 E.h 412003 MS-M.4/18.9/+55 A
No No 1, 2, 3 1
h?]
p~
g 412004 MS-E.5/20/+50 A
No No 1, 2, 3 1
M
- a 412013 FEED-75/50E/+50 I
No No 1,2,3 1
N 412015 FEED-10S/50W/+49 I
No No 1, 2, 3 1
m
.id di m
N}
7.j lhb.
4 TABLE 3.7-la (Continued) z f
SAFETY RELATED HYDRAULIC SNUBBERS
- N g
ACCESSIBLE HIGI
. ESPECIALLY m
HANGER SYSTEM, LOCATION OR RADIATION DIFFICULT APPLICABLE g
NO. (1)
AND ELEVATION INACCESSIBLE ZONE **
TO REMOVE MODES (3)
ACTION' P
q (A or I)
(,Yes or No)
(Yes or No) m 412016 (2)
MS-M.4/20/+55 A
No No 1, 2, 3 1
412018 FEED-3S/51W/+45 I
No Yes 1, 2, 3 1
413009 MS-F.8/18.9/+55 A
No No 1,2,3(2) 2 413011 (2)
MS-E.5/18/+40 A
No No 1,2,3(2) 2 413018 (2)
MS-H.4/18.9/+55 A
No No 1, 2, 3
^1 413019 (2):
MS-E.5/17/+40 A
No No 1,2,3(2) 2 413022(2)
MS-E/16/+41 A
No No 1,2,3(2) 2 j
413024 (2)
MS-E.5/17/+40 A
No No 1,2,3(2) 2 413025(2)
MS-E.5/17/+40 A
No No 1,2,3(2) 2 413028 MS-K.7/18.9/+55 A
No No 1, 2, 3 1
i 413029 (2)
MS-E.5/18.5/+48 A
No No 1,2,3(2) 2 k
413030 (2)
MS-E.5/18.5/+46 A
No No 1,2,3(2) 2 i
=
k
=
413031 MS-E.5/18.5/+47 A
No No 1,2,3(2) 2 f
413032 (2)
MS-E.5/19.6/+56 A
No No 1, 2, 3 1
3 413041 MS-C/16/+44 A
No No 1,2,3(2) 2 413046 (2)
MS-E/16/+41 A
No No 1,2,3(2) 2
=,
a.
413081 MS-E.5/19/+46 A
No No 1,2,3 1
I i
I
'9
.e
T s
... c c '. -.
. 2.c e
_u.i.-..__m....__._._..--
- l TABLE 3.7-la (Continued) l' i
I 3
SAFETY RELATED llYDRAULIC SNUBBERS
- l T.
p U"
ACCESSIBLE IIIGH ESPECIALLY E
HANGER SYSTEM, LOCATION OR RADIATION DIFFICULT APPLICABLE
~I T
NO. (1)
AND ELEVATION INACCESSIBLE ZONE **
TO REMOVE MODES (3)
ACTION l
E (A or I)
(Yes or No)
(Yes or No)
-i
- d 413082(2)
MS-E.5/19/+46 A
No No 1, 2, 3 1
N 1
Li 413172 FEED-E.5/19/+49 A
No No 1,2,3(2) 2 A
413179 FEED-J.7/18.9/+50 A
No No 1,2,3(2) 2 U4 413181 FEED-K.7/18.9/+50 A
No No 1,2,3(2) 2 M
413192(2)
FEED-F.2/18.9/+50 A
No No 1,2,3(2) 2
- ,1 W) 413199 (2)
FEED-L.5/19.8/+50 A
No No 1, 2, 3 1
y g
416014 (2)
CS-8S/61E/+7 I
No No 1,2,3(+)
1
- S l7j 7
[V{
O 416020 CS-23S/56E/+10 I
No No 1,2,3(+)
1 l i M
416023(2)
CS-305/60W/+7 I
No No 1,2,3(+)
1 416025 CS-18S/60W/+8 I
No No 1,2,3(+)
1 71 kj 416027 CS-SS/60W/+5 I
No No 1,2,3(+)
1
(-}e;
}
427075 SW-L.5/17.2/-13 A
No No 1, 2, 3, 4 1
p.
- .pd.
5 427097(2)
SW-L.5/17.2/-11 A
No No 1, 2, 3, 4 1
L-p g
V 427106 SW-L.5/17.2/-ll A
No No 1, 2, 3, 4 1
.$4 M
Fi 450071 RBCCW-J.7/17.2/-13 A
No No 1, 2, 3, 4 1
. %j.
~
501022 (2)
HPSI-F.8/18.9/-29 A
Yes Yes 1, 2, 3, 4 1
.n
$]
502032 CS-E.5/19.6/+2 A
Yes No 1,2,3(+)
1 Aj 504002 HPSI-F.2/18.5/-42 A
Yes No 1, 2, 3, 4 1
- se
~
y; r.*.
104
- ~. _ _, _ _ _.
TABLE 3.7-1a (Continued) x SAFETY RELATED HYDRAULIC SNUBBERS
- l h
ACCESSIBLE HIGH ESPECIALLY g
HANGER SYSTEM, LOCATION OR RADIATION DIFFICULT APPLICABLE rp NO. (1)
AND ELEVATION INACCESSIBLE ZONE **
TO REMOVE MODES (3)
ACTION P
g (A or I)
(_Yes or No)
(Yes or No)
--e 504003 HPSI-F.2/17.2/-42 A
Yes No 1, 2, 3, 4 1
~
,o 505166(2)
R8CCW-J.7/17.2/-16 A
No No 1, 2, 3, 4 1
507004 HPSI-F.2/18.5/-42 A
Yes No 1, 2,.3, 4 1
510017 SIT-6N/47E/+15 I
No No 1,2,3(+)
1 510018 SIT-6N/47E/+15 I
No No 1,2,3(+)
1 i
513023 (2)
MS-K.6/19.6/-2 A
Yes No 1, 2, 3 1
g 513032 MS-E/19/+48 A
No No 1,2,3(2) 2
{
SSl-SS8 (8)
SG #1 I
Yes Yes 1, 2, 3 1
SS1-SS8 (8)
SG #2 I
Yes Yes 1, 2, 3 1
Table Notation f
Snubbers may be added or deleted without prior License Amendment to Table 3.7-la provided that a revision to R
Table 3.7-la is included with the next License Amendment request.
In lieu of any other report required by Specification 6.9.1, at least 15 days prior to the deletion of any listed snubber, a Special Report shall be k
prepared and submitted to the Consission in accordance with Specification 6.9.2 evaluating the safety signif-
.I R
icance of the proposed snubber removal.
i
- Modifications to this column due to changes in high radiation areas may be made without prior License Amend-ment prgylded that a revision to Table 3.7-la is included with the next License Amendment request.
<a Gh 8
i e
p
.e
g n_
__ r n :.,_ _ _ _ - 7..
^
c.!
,i
~
l TABLE 3.7-lb i -
35 SAFETY RELATED HECHANICAL SNUB 8ERS*
l F
l 4
ACCESSIBLE HIGH ESPECIALLY
~
HANGER
- SYSTEM, LOCATION OR RADIATION DIFFICULT APPLICABLE
'?
NO. (1)
AND FLEVATION INACCESSIBLE ZONE **
TO REMOVE MODES (3)
ACTION I'
l E
(A or I) - (Ves or No)
(Yes or No) g
.-s m
60017 FW-E.0/23.0/39
'A
'No No 1,2,3(2) 2
)
60245 RHV-18N/26E/59 I
Yes No 1, 2, 3, 4 1'
~l1 60246 RHV-21N/26E/57 I
Yes No 1, 2, 3, 4 1
f
,j 60247 RHV-18N/27E/59 I
Yes No 1, 2, 3, 4 1
f.)
60251 RHV-18S/2E/32 I
Yes No 1, 2, 3, 4 1
Sj 60253 RHV-18S/lW/30 I
Yes No 1, 2, 3, 4 1-
.t u
l 1
302092 HPSI-F.2/18.9/-42 A
Yes No 1, 2, 3, 4 1
i
~
i k
310022 SI-46S/22E/-3 I
No No 1, 2, 3, 4 1
b.i hj 401014 LPSI-E.5/16.8/-35 A
Yes No 1
2, 3(+), 6
~
4 11
.]
401016 (2)
LPSI-E.5/16.8/-36 A
Yes No 1,2,3(+),6 4
Uj
[
401018 HPSI-F.3/16.6/-34 A
Yes No 1, 2, 3, 4 1
-]a g
401019 (2)
HPSI-F.3/16.6/-30 A
Yes No 1, 2, 3, 4 1
g 7;,j g
401020 (2)
HPSI-F.3/16.6/-28 A
Yes No 1, 2, 3, 4 1
h
,I 402008 SDC-F.2/18.9/-32 A
Yes No 6
3
[*
D 402120 SDC-F.2/18.9/-35 A
Yes No 6
3
~
fii
{j
[
404020 (2)
HPSI-E.5/18.4/-8 A
Yes No 1, 2, 3, 4 1
$j!
F 405647 RBCCW-M.4/16.6/9 A
No No 1, 2, 3, 4 1
4
- i.
.. ~...,
- -- =
h.
I TABLE 3.7-lb (Continued) l SAFETY RELATED MECHANICAL SNU68ERS*
-l 3
h~
ACCESSIBLE HIGH ESPECIALLY HANGER SYSTEM, LOCATION OR RAOIATIGN DIFFICIA.T-APPLICABLE
.l k
NO. (1)
AND ELEVATION INACCESSIBLE ZONE **
TO REMOVE M00ES (3)
ACTION I
^
g (A or I)
(Yes or No)
(Yes or No)
]
408001 ES-17N/27E/54 I
No No 1, 2,.3, 4 1
I~
1 408002(2)
RCS-15N/29E/60 I
No No 1, 2, 3, 4 1
408003 (2)
NCS-20N/29E/56 I
No No
.1, 2, 3, 4 1
408004 (2)
RCS-20N/29E/55 I
No No 1, 2, 3, 4 1
i 408009 (3)
No No 1, 2, 3, 4 1
400010 (4)
No No 1, 2, 3, 4 1
R R
d 410007 SI-55S/50E/-10 I
Yes No 1,2,3(+)
1 7'
y 410037 (2)
No No 1, 2, 3, 4 1-410040 ES-17N/39E/52 I
No No 1, 2, 3, 4 1
410046 KS-8N/19E/28 I
Yes-No 1, 2, 3, 4 1
410049 ES-8N/18E/15 I
Yes No 1,.2, 3, 4 1
410054 KS-6N/18E/26 I
Yes No 1, 2, 3, 4 1
r
=
410059 KS-245/18E/22 I
Yes No 1, 2, 3, 4 1
a
,F 410062 (2)
SDC-18S/48W/-6 I
No No 6
3 y
410092 SI-53S/33E/-6 I
No No 1,2,3(+)
1
[
411045 (2)
FW-E.0/22.0/44 A
No No 1,2,3(2) 2 411062 (2)
FW-D.0/20.0/38 A
No No 1,2,3(2) 2
~-
I
7__.__._~._._s.._
u.
- I
.;l TABLE 3.7-lb (Continued)'
l i
f:j SAFETY RELATED HECHANICAL SNUBBERS
- l n
I'l F
ACCESSIBLE ilIGH ESPECIALLY i
U HANGER SYSTEM, LOCATION OR RADIATION DIFFICULT.
APPLICABLE
,. 'j S
NO. (1)
AND ELEVATION INACCESSIBLE ZONE **
TO REMOVE MODES (3)
ACTION P
(
[
(A or I)
(Yes or No)
(Yes or No) z H
413064 (2)
MS-L.6/19.8/52 A
No No 1, '2, 3
1 1
ro
]
413132(2)
MS-L.6/18.9/52 A
No No 1, 2, 3 1
,l 413135 (2)
MS-E.5/19.0/45 A
No No 1, 2, 3 1
i
~
j 414001 (2)
RCS-22N/20E/55 I
No No 1, 2, 3, 4 1
3 Li
'414002 (2)
RCS-20N/20E/55 I
No No
' 1, 2, 3, 4 1
.i i:dlj 414006(2)
RCS-24N/20E/45 I
No No 1, 2, 3, 4 1
M 414009 (2)
RCS-24N/30E/40 I
No No.
1,2,3,4-1 1:t y
,1 g
414016 (2)
RCS-21N/31E/44 I
No No 1, 2, 3, 4 1
of l
414018 (2)
RCS-15N/30E/58 I
No No 1, 2, 3, 4 1
(
414021 (2)
RCS-15N/31E/54' I
No No 1, 2, 3, 4 1
h 414024 (2)
RCS-20N/31E/53 I
No No 1,2,3-4 1
- A F
R 414025(2)
IlCS-20N/31E/58 I
No No 1, 2, 3, 4 1
H;d g
414027 (2) j RCS-21N/30E/58 I
No No 1, 2, 3, 4 1
3 Q
$3 414029 (4)
RCS-20N/33E/51 I
No No 1, 2, 3, 4 1
g; p
414032 (2)
RCS-22N/33E/55 I
No No 1, 2, 3, 4 1
414033(2)
RCS-23N/32E/55 I
No No 1, 2, 3, 4 1
e.
...d 414035 RCS-25N/39E/29 I
Yes No 1, 2, 3, 4 1
S ed i
p.4 e
,e
TABLE 3.7-lb (Continued) l SAFETY RELATED NECHANICAL SNUBBERS
- l G
ACCESSIBLE HIGH ESPECIALLY d
HANGER SYSTEM, LOCATION OR RADIATION DIFFICULT APPLICABLE M
NO. (1)
AND ELEVATION INACCESSIBLE ZONE **
TO REMOVE MODES (3)
ACTION g
(A or I)
(Ves or No)
(YesorNo) 416016 (2)
CS-3S/63E/24 I
No No 1,2,3(+)
1 416021 CS-43S/43W/7 I
No No 1,2,3(+)
1 416022 CS-43S/43W/5 I
No No 1,2,3(+)
1 l
416032 (2)
CS-3N/62W/108 I
No No 1,2,3(+)
1 427110 SW-L.5/15.9/5 A
No No 1, 2, 3, 4 1
427111 SW-L.5/15.9/5 A
No No 1, 2, 3, 4 1
427115 (2)
SW-L.5/15.9/-14 A
No No 1, 2, 3, 4 1
h 450058 (2)
RBCCW-F.8/17.2/-34 A
Yes No 1, 2, 3, 4 1
501023 (2)
CS-E.5/18.5/-41 A
Yes No 1, 2, 3, 4 1
501024 CS-E.5/18.5/-38 A
Yes No 1, 2, 3, 4 1
502024 (2)
SDC-F.2/19.6/-9 A
Yes No 6
3
=
502026 LPSI-F.2/19.6/-15 A
Yes No 1,2,3(+),6 4
k 502035 LPSI-E.5/18.5/-37 A
Yes No 1,2,3(+),6 4
g 505143 RBCCW-H.4/16.6/-13 A
No No 1, 2, 3, 4 1
y 507002 SI-34S/44E/17 I
No No 1,2,3(+)
1
[
510004 SI-575/21E/-10 I
ho No 1, 2, 3, 4 1
512001 MS-E.5/20.0/43 A
No No 1,2,3 1
s t
l
a u :. w :.;:-;..:.-.-.... : :: :.... L : C.. -
- - ~ ~ ~
~
~]
TABLE 3.7-lb (Continued) l
.i j
jn; SAFETY RELATED HECHANICAL SN!!BBERS*
l
.j r-G ACCESSIBLE HIGH ESPECIALLY aj 1:]
d HANGER SYSTEM, LOCATION OR RADIATION DIFFICULT APPLICABLE
.:j E
NO. (1)
AND ELEVATION INACCESSIBLE ZONE **
TO REMOVE MODES (3)
ACTION I
h (A or I)
('Ies or No)
(Yes or No) a 512002 MS-M.4/18.9/60 A
No No 1, 2, 3 1
512003 MS-E.5/20.0/40 A
No No 1, 2, 3 1
513008 MS-L.5/18.9/44 A
No No 1, 2, 3 2
513036 MS-K.7/18.9/45 A
No No 1, 2, 3 2
s j
513040 MS-L.5/18.9/47 A
No No 1, 2, 3 2
i j
513041 MS-K.6/19.6/-2 A
Yes No 1,2,3 2
1 513042 MS-K.6/18.9/9 A
Yes No 1, 2, 3 2
gg 514001 RCS-18N/32E/29 I
No No 1, 2, 3, 4 1
- o.,
n.
f 527071 (2)
SW-L.5/16.6/-11 A
No No 1, 2, 3, 4 1
K.M 527072 (2)
SW-L.5/16.6/-11 A
No No 1, 2, 3, 4 1
']
FSKM02022 MS-4S/39E/10 I
No No 1, 2, 3 2
,l
[
D.P. 107 n
]
[
FSKM02022 MS-3N/39E/10 I
No No 1, 2, 3 2
g D.P. 109
....j
,E FSKM02023 MS-25S/41E/18 I
No No 1, 2, 3 2
h.
4 D.P. 158
}p}
m
]m
[
FSKM02024 MS-43S/30E/-10 I
Yes No 1, 2, 3 2
D.P. 23 Q)4 FSKM02025 MS-31S/32W/-9 I
Yes No 1, 2, 3 2
D.P. 125 (2)
?).
f o
n..
- ;;.: z.... a. : a.
.2-TABLE 3.7-lb (Continued) l x
SAFETY RELATED NECHANICAL SNUBBERS
- l F
0; ACCESSIBLE HIGH ESPECIALLY d
HANGER SYSTEM, LOCATION OR RADIATION DIFFICULT APPLICABLE M
NO. (1)
AND ELFVATION INACCESSIBLE ZONE **
TO REMOVE MODES (3)
ACTION (A or I)
(_Yes or No)
(Yes or No) 5*
FSKM02026 MS-29S/35W/23 I
Yes No 1, 2, 3 2
0.P. 307 FSKM02027 MS-17S/32W/24 I
Yes No 1, 2, 3 2
D.P. 190 FSKM02030 MS-6N/33W/-5 I
No No 1, 2, 3 2
D.P. 253 FSKM02097 MS-2S/40E/10 I
No No 1, 2, 3
_2 D.P. 402 s"
FSKM15021 HPSI-E.5/19.9/-3 A
No No 1, 2, 3, 4 1
{
D.P. 781 m
FSKM15029 HPSI-F.2/19.6/-3 A
No No 1, 2, 3, 4 1
D.P. 537 FSKM17013 CVCS-F.2/19.6/-12 A
Yes No 1, 2, 3, 4 1
D.P. 38 FSKM17095 CVCS-22S/19W/3 I
Yes No 1, 2, 3, 4 1
k D.P. 34 s
k FSKM17095 CVCS-22S/19W/6 I
Yes No 1, 2, 3, 4 1
3 0.P. 50-1 2
FSKM17103 CVCS-20S/25W/-ll I
Yes No 1, 2, 3, 4 1
D.P. 411 g
c.
FSKM32012 CVCS-15S/18W/-6 I
Yes No 1, 2, 3, 4 1
=
D.P. 152 e
.u..
l TABLE 3.7-lb (Continued) 1 g
SAFETY RELATED t1ECHANICAL SNUBBERS
- l l
P 0;
ACCESSIBLE HIG1 ESPECIALLY i
g HANGER SYSTEM, LOCATION GR RADIATION DIFFICULT APPLICABLE N
NO.(11 AND ELEVATION INArCESSIBLE ZONE **
TO REMOVE MODES (3)
ACTION 7
L.
(A or I)
(,Yes or No)
(Yes or No)
J z
d SK-M-1016 MS-K.6/19.6/-2 A
Yes No 1, 2, 3 2
L D.P. 208
')
SK-M-1016 MS-K.6/19.6/-2 A
Yes No 1, 2, 3 2
D.P. 215 l
Table Notation j
Snubbers may be added or deleted without prior License Amendment to Table 3.7-lb provided that a revision to Table 3.7-lb is included with the next License Amendment request.
In lieu of any other report required by Specification 6.9.1, at least 15 days prior to the deletion of any listed snubber, a Special Report shall be w
1 prepared and submitted to the Conmission in accordance with Specification 6.9.2 evaluating the safety signif-
]
y icance of the proposed snubber removal.
ij
- Modifications to this column due to changes in high radiation areas may be made without prior License Amend-j ment provided that a revision to Table 3.7-lb is included with the next License Amendment request.
i
.)
g i,
it
.i.
8 i
N N
g e,
j 3
a
=
y d
4
}y?
.Ei
~
a-a _
.-.-- _..n....
- - - _.~ _
i.
'i Tables 3.7-la and 3.7.lb (Continued) 2, SAFETY RELATED SNUBBERS
- p Table Notation f
(1) The hanger number is listed. Where more than one snubber is associated with a given hanger, it is so g
indicated in perentheses.
h (2) Snubber operability is not required if the line containing the hanger is isolated from the SG.
M (3)
If the associated facility is inoperable, snubber operability is not required.
(4) Whenever irradiated fuel assemblies are in the storage pool.
(+) With pressurizer pressure > 1750 psia.
ACTION Statements *#
ACTION 1 - Restore the inoperable snubber (s) 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 STAND 8Y within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and in a MODE not requiring the snubbers to be OPERABLE within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.
ACTION 2 - Restore the inoperable snubber (s) to OPERABLE status or isolate the line containing the hanger from the affected steam generator 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 STANDBY within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />
[
and in a MODE not requiring the snubbers to be OPERABLE within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.
O ACTION 3 - Restore the inoperable snubber (s) 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 suspend all operations involving a reduction in boron concentration of the Reactor Coolant System.
ACTION 4 - Complete ACTION Statement 1 if in MODES 1, 2, or 3(+) and ACTION Statement 3 if in MODE 6 ACTION 5 - Restore the inoperable snubber (s) 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 verify the temporary connec-
[-
tion from the shutdown cooling heat exchangers is isolated. The provisions of Specification 3.0.3 g
are not applicable.
l ACTION 6 - Restore the inoperable snubber (s) 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 connect shutdown cooling to the spent fuel pool cooling system. The provisions of Specification 3.0.3 are not applicable.
r*
- u g
- An engineering evaluation of systems or components supported by ' inoperable snubber (s) shall be performed per Specification 4.7.8.1.c within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> for each ACTION.
[
- An engineering evaluation may be performed for the purposes of declaring the affected system operable with the inoperable snubber, provided a prompt report is submitted pursuant to Specification 6.9.1.8.1 and the snubber is repaired at the next outage of sufficient duration prior to or during the next scheduled refueling.
t o...
- 44' M M l -
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- )
t
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i l
i j
.1 i
i i
THIS PAGE INTENTIONALLY LEFT BLANK i
l 1
I
,4 1
't.
It ll il 1
b
({.
MILLSTONE-UNIT 2 3/4 7-31 Amendment No. S 6
]
[
u
guC.._..... _;..._ _ i 11.~. -.21E.E.E tie ~~
~ ' ~
~ ~ ~ ~
~
J Ib 1
' )f x
TABLE 4.7-3 l
Q F
h4 C
SNUBBER VISUAL INSPECTION SCHEDULE l
'A g
t N
- i NUMBER OF SNUBBERS FOUND IN0PERABLE SUBSEQUENT VISUAL INSPECTION
.j E-DURING INSPECTION INTERVAL
- INTERVAL **#
5 p?d 0
18 months + 25%
fl l
12 months T 25%
f!
2 6 months T 15%
"Tj 3 or 4 124 days
_T 25%
5, 6 or 7 62 days i 25%
g
>8 31 days 1 25%
1 1
.1 2
1 j
R 3
- Snubbers may be categorized into two groups: Mechanical and Hydraulic. Each group may be
?
divided into two subgroups:
those accessible and those inaccessible during reactor operation.
rg M
Each group and subgroup may be inspected independently in accordance with the above schedule.
h
- The required inspection interval shall not be lengthened more than one step at a time.
.[
- The provisions of Specification 4.0.2 are not applicable.
q 11 f
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1 1
1 PLANT SYSTEMS n;:
BASES-3/4.7.7 SEALED SOURCE CONTAMINATION
.i The limitations on sealed source removable contamination ensure that the total body or individual organ irradiation does not exceed allowable limits in the event of ingestion or inhalation of the source material. The limitations on removable contamination for sources requiring leak testing, including alpha emitters, is based on 10 CFR 70.39(c) limits for plutonium.
l!
Leakage of sources excluded from the requirements of this specification y
represent less than one maximum pennissible body burden for total body l
irradiation if the source material is inhaled or ingested.
3/4.7.8 SNUBBERS All snubbers are required OPERABLE to ensure that the structural integrity of the reactor coolant system and all other safety related systems is maintained during and following a seismic or other event initiating dynamic loads. Snubbers excluded from this inspection program are those installed on nonsafety-related systems and then only if their failure or failure of the system on which they are installed would have no adverse effect on any safety related system.
The visual inspection frequency is based upon maintaining a constant level of snubber protection to systems.
Therefore, the required inspection interval varies inversely with the observed snubber failures and is deter-mined by the number of inoperable snubbers found during an-inspection.
Inspections performed before that interval has elapsed may be used as a new j;
reference point to determine the next inspection. However, the results of
- 1 such early inspections performed before the original required time interval has elapsed (nominal time less 25%) may not be used to lengthen the required inspection interval. Any inspection whose results require a shorter inspec-tion interval will override the previous schedule.
s
- j When the cause of the rejection of a snubber is clearly established and remedied for that snubber and for any other snubbers that may be generically susceptible, that snubber may be exempted from being counted as inoperable.
!l Generically susceptible snubbers are those which are of a specific make or j
model and have the same design features directly related to rejection of the j
snubber by visual inspection, or are similarly located or exposed to the 3
same environmental conditions such as temperature, radiation, and vibration, j
Due to the size and location of the steam generator hydraulic snubbers, q
regular removal and testing as specified for hydraulic and mechanical snubbers would represent a significant undertaking during each refueling outage. As 3]
such, these snubbers have been treated separately and are tested and refur-bished as a group in accordance with the manufacturer's recomended preventa-tive maintenance program.
MILLSTONE-UNIT 2 B 3/4 7-5 Amendment No. JJ, M, S 6 1IA+
^
m
.~
, - + _
v w
?
~
PLANT SYSTEMS 1
1; i
BASES When a snubber is found inoperable, an engineering evaluation is performed, in addition to the determination of the snubber mode of failure, in order to determine if any safety related component or system has been adversely. affected by the inoperability of the snubber.
The engineering evaluation shall determine whether or not the snubber mode of failure has imparted a significant effect or degradation on the j
supported component or system.
I To provide assurance of snubber reliability, a representative sample
- i of the installed snubbers will be tested during plant shutdowns at eighteen
(.18) month intervals. Observed failures of these sample snubbers shall
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require testing.of additional units.
Hydraulic snubbers and mechanical snubbers may each be treated as a j
different entity for the above surveillance programs.
3 The service life of a snubber is evaluated via manufacturer input and
-infonnation through consideration of the snubber service conditions and associated installation and maintenance records (newly installed snubber, seal replaced, spring replaced, in high radiation area, in high temperature area,etc...). The requirement to monitor the snubber service life is included to ensure that the snubbers periodically undergo a performance evaluation in view of their age and operating conditions. These records will provide statistical bases for future consideration of snubber service life. The requirements for the maintenance of records and the snubber i,
service life review are not intended to affect ' plant operation.
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l 3/4.7.9 FIRE SUPPRESSION SYSTEMS 1
lj The OPERABILITY of the fire suppression system ensures that adequate fire suppression capability is availab.le to confine and extinguish fires
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occurring in any portion of the facility where safety related equipment is located. The fire suppression system consists of the water system, spray I!
and/or sprinklers and fire hose stations. The collective capability of the fire suppression systems is adequate to minimize potential damage to safety related equipment and is a major element in the facility fire protection j
program.
Lt Ll In the event that portions of the fire suppression systems are inoper-p able, alternate backup fire fighting equipment is required to be made avail-i ole in the affected areas until the inoperable equipment is restored to service.
I MILLSTONE-UNIT 2 B 3/4 7-6 Amendment No. JJ, #,S 6 1
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- t hWF "ZdlIM WEM2M.WEGG6:T'W e
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u PLANT SYSTEMS BASES In the event the fire suppression water system becomes inoperable, immediate corrective measures must be taken since this system provides the major fire suppression capability of the plant. The requirement for a twenty-four hour report to the Commission provides for prompt evaluation of the acceptability of the corrective measures to provide adequate fire suppression capability for the continued protection of the ruclear plant.
3/4.7.10 PENETRATION FIRE BARRIERS The functional integrity of the penetration fire barriers ensures that fires will be confined or adequately retarded from spreading to. adjacent portions of the facility. This design feature minimizes the possibility of a single fire rapidly involving several areas of the facility prior to detection and extinguishment. The penetration fire barriers are a passive element in the facility fire protection program and are subject to periodic inspections.
During periods of time when the barriers are not functional, a continuous fire watch is required to be maintained in the vicinity of the affected barrier until the barrier is restored to functional status.
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MILLSTONE-UNIT 2 B 3/4 7-7 Amendment No.11, 35, S 6 1
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