Text

Proposed Tech Specs 3.16 Re Shock Suppressors (Snubbers)
	ML19210B624
Person / Time
Site:	Crane
Issue date:	02/17/1977
From:	; Office of Nuclear Reactor Regulation
To:	;
Shared Package
ML19210B623	List: ML19210B622; ML19210B624; ML19210B629;
References
	NUDOCS 7911110100
	Download: ML19210B624 (21)
	v • d • e

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3.16 Shock Sunnressors (Snubbers)

Applic ability Applies to the operability of the snubbers listed in Table 3.16.1.

Objective To identify those conditions for which the operability of snubbers is required and to identify the time limits in which either the snubber must be made operable or reactor shutdown must occur.

Specificatien 3.16.1 During all modes of operation except cold Shutdown and Refueling, all safety-related snubbers listed in Table 3.16.1 shall be operable axcept as noted in 3.16.2 through 3.16.4 below.

From and after the time that a snubber is determined to be 3.16.2 inoperable, continued reactor operation in modes other than chose identified in 3.16.1, above, is permissible only during I

the succeeding 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months unless the snubber is sooner made operable.

3.16.3 If the require =ents of 3.16.1 and 3.16.2 cannot be =et, an orderly shutdovr shall be initiated and the reactor shall be l,

in cold shutdown condition within an additional 36 hours4.166667e-4 days 0.01 hours 5.952381e-5 weeks 1.3698e-5 months .

l

.f a snubber is determined to be inoperable'while the reactor 3.16.h

}l 1s in the shutdown or refuel mode, the snubber shall be made operable prior to reactor start-up.

3.16.5 Snubbers may be added to safety-related systems witheut prior License A=end:ent to Table 3.16.1 provided that a revision to

{

Table 3.16.1 is included with the next License A=end=ent Request.

1*

Bases i

Snubbers are designed to prevent unrestrained pipe motion under dynamic loads as might occur during an earthquake or severe transient, while allowing nor=al ther=al motion during startup and shutdown. The consequence of an inoperable snubber is an increase in the probability of structural da= age to piping as a result of a seismic or other event initiating dynamic loads. It is, therefore, required that all snubbers required to protect the primary ecolant system or any other safety system or cc:ponent be operable during reactor operation or other periods when severe transients might cause da= aging dynamic leads.

1 IOO n77 Isau UJJ

&911II o /00

Because the snubber protection is required only during lov probability events, a period of 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months is allowed for repairs or replace =ents.

In case a shutdown is required, the allevance of 36 hours4.166667e-4 days 0.01 hours 5.952381e-5 weeks 1.3698e-5 months to reach a cold shutdown condition vill y ait an orderly shutdown consistent with standard operating procedur<s.

Since plant startup should not co==ence with safety equip =ent having known defects, specification 3.16.h prohibits startup vith inoperable snubbers.

Table 3.16.1 lists all snubbers installed on nuclear safety related systems throughout the plant. Snubbers were classified for the table in accordance with the following guidelines:

a.

High Radiation Area During Shutdown: Those snubbers located in a general field of greater than 100 =r/hr. during shutdown.

b.

Especially difficult to re=ove: Those snubbers that are elevated

= ore than 10 feet off the floor and that, due to ir.tarferences, say not be safely reached fro = a suitable work platfor=.

c.

Inaccessible during nor=al operation: Those snubbers that are located within an ares where the general field is 100 =r/hr. or i

greater during nor=al. operation.

d.

Accessible during nor=al operation: Those snubbers that do not l

=eet the criteria of paragraphs b and c above, t

lv' il 1

15u3 034

o h.17 Shock Sueeressors (Snubbers)

Aeolicability Applies to the inspection of hydraulic snubbers listed in Table 3.16.1 to determine their operability.

Objective To provide assurance of the operability of the hydraulic snubbers.

Specificatien k.17.1 All hydraulic snubbers whose seal material has been demonstrated by operating experience, lab testing, or analysis to be compatible

. vith the operating environment shall be visually inspected. This inspection shall include but not necessarily be limited to,

inspection of the hydraulic fluid reservoir, fluid connections, and linkage connections to the piping and anchor to verify snubber operability in accordance with the following schedule:

Number of Snubbers Found Next Required Inoperable During Inspection Inspection l

or During Inspection Interval Interval 0

18 months 3; 25%

1 12 months + 25%

2 6 months + 25%

3, h 12h days II 25%

}

5,6,7 62 days 3[ 25%

2, 8 31 days f; 25%

The required inspection interval shall not be lengthened =cre than one step at a time.

Snubbers nay be categorized in two groups, " accessible" or h'

" inaccessible" based on their accessibility for inspection ducing I

reactor operation.

These two groups may be inspected independently according to the above schedule.

h.17.2 All hydraulic snubbers whose seal materials are other than ethylene propylene or other material that has been demonstrated to be compatible with the operating environment shall be visually inspected for operability at least every 31 days.

1553 035

1s.17.3 The initial inspection shall be performed within 6 months from the date of issuance of these specifications. For the purpose of entering the schedule in Specification k.17,1, it shall be assumed that the unit had been on a 6 month inspection interval.

U.17.h Once each refueling cycle, a representative sample of~10 hydraulic snubbers or approximately 10% of ene hydraulic snubbers, whichever is less, shall be functionally tested for operability including verification of proper piston movement, lockup and bleed. For each unit and subsequent unit found inoperable, an additional 10% or ten hydraulic snubbers, whichever is less, shall be so tested, until no more failures are found or all units have been tested. Snubbers of rated capacity greater than 50,000 lbs. need not be functionally tested.

Bases All safety related hydraulic snubbers are visually inspected for overall j

integrity and operability. The inspection vill include verification of proper orientation, adequate hydraulic fluid level, and proper attach =ent of snubber to piping and structures.

[

The inspection frequency is based upon maintaining a constant level of p

anabber protection. Thus the required inspection interval varies inversely with the observed snubber failures. The number of inoperable b

snubbers found during a require

inspection detemines the time interval i i for the next required inspection. Inspections perfor=ed before that I

interval has elapsed may be used as a new reference point to deter =ine 7,

the next inspection. However, the results of such early inspections perfor:ed before the original required ti=e interval has elapsed (nominal 1

time les, 25%) may not be used to lengthen the required inspection interval. Any inspection whose results require a shorter inspection interval vill override the previous schedule.

I Experience at operating facilities has shovn that the required surveillance program should assure an acceptable level of snubber performance provided that the seal materials are compatible with the operating environ =ent.

Snubbers containing seal material which has not been de=enstrated by operating experience, lab tests, or analysis to be ecmpatible with the operating environ =ent should be inspected more frequently (every month) until material compatibility is confirmed or an appropriate changeout is completed.

Examination of defective snubbers at reactor facilities and materiel tests perfor=ed at several laboratories (Reference 1) has shown that millable gc.n polyurethanedeteriorates rapidly under the te=perature et.d moisture conditions present in many snubber locations. Although molded polyurethane exhibits greater resistance to these conditions, it also may be unsuitable for application in the higher te=perature 1538 036

environ =ents.

Data are not currently available to pre'cisely define an upper te=perature limit for the =olded polyurethace.

Lab tests and in-plant experience indicate that seal =aterials are available, pri=arily ethylene propylene co= pounds, which should give satisfactory perfor ance under the =ost severe conditions expected in reactor installation.

To further increase the assurance of snubber reliability, functional tests should be performed once each refueling cycle. These tests vill include stroking of the snubbers to verify proper piston movenent, lock-up and bleed. Ten percent or ten snubbers, whichever is less, represents an adequate sa=ple for such tests. Observed failures on these samples should require testing of additional units. Snubbers designated in Table 3,16.1 as being in high radiation areas or those especially difficult to re=ove need not be selected for functional tests provided operability was previously verified.

Snubbers of rated capacity greater than 50,000 lbs. 'are exe=pt fro = the functional testing requirements because of the i=-

practicality of testing su:h large units.

~

Reference I

(1) Report H. R. Erickson, Bergen Patersen to K. R. Geller NRO, October 7, 197h

Subject:

Eydraulic Shock Svay Arrestors

,i hL k,

77 nn

)JdO d

. TASII h.1-2 MINIMUM EQUIPMENT TIST FP241.UCY Item Test Frecuenev 1.

Control Rods

.~. L.i ti=es of all Zach refueling shutdown fC le. gth rods 2.

Control Roc Move =ent of each red Every two veeks. vhen reactor is critical Msvement 3

Pressurizer Safety Setpoint

50% each refueling period Valves k.

Main Steas Safety Setpoint 25% each refueling period Valves 5

Refueling Syste=

Functioral Start of each refueling period Interlocks l

6.

Main Stens (See Section 4.8)

Isolation Valves 7

Reactor Coolant Ivaluate Daily, when reactor coolant j

Syste= Ieakage system te=perature is greater than 525CF y

h 8.

Charcoal and high IC? test on HIPA filters, Each reNeling period and at

'I efficiency filters freon test on charcoal any ti=e work on filters fer Control Roe =,

filter units could alter their integrity and R3 Purge Filters 9

Spent Fuel Cooling ru=etional Each refueling period prier to I

System fuel handling

10. Intake Pu=p House (a) Silt Accu =ulation-Iach refueling period Visual inspection of Intake Floor (Elevation 262 Ft Pu=p House Floor 6 in.)

(b) Silt Aceu=ulatien quarterly Measure ent of Pu=p House

~

Flov

The setpoint of the pressurizer code safety valves shall be in accordance with ASME Soiler and Pressuri::er Vessel Code,Section III, Article 9, Winter,1968.

I Amendment No. J.

h-B n38 1 r, cm

oo

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TABLE 316.1 Page 1 of 15 SAFETY RELATED SIIOCK SUPPRESSORS (SN!!BBERS)

I Snubber in Snubber Ssubbers Snubbers Nigh Radiation Especially Inacessible Accessible Area During Difficult During Normal During Norma

Snubber MK No.

Location Elevation Shut.down" To Removo Operation Operation RC-4 355 Ho Yes Yes No

"* d*

N.E. Quad.

355 No No Yes No It x. Bldg. Inside Sec. Shield RC-5 N.E. Quad. Top of PZR Near RC-V3 No Yes No 8*

355 No RC-15 N.E. Quad. Top of PZR Near RC-V3 No Yes No 6*

"*1d*

hi" 355 No RC-16 N.E. Quad. Top of PZR Near RC-V3 No Yes No Bldg. Inside Sec. Shield 355 No RC-17 N.c. Quad. Near RC-V1 Rx. Bldg. Inside Sec. Shield No Yes No RC-18 355 No H.E. Quad. Net.r RC-V1 E'

UI*

No Yes No RC-19 355 No U.E. Quad. Near RC-V1 Rx. Bldg. Inside Sec. Shield 355 No No Yes No RC-23 N.E. Quad. Near RC-V1 g.

ns e e.

ed No Yes No RC-20 353 No N.E. Quad.

RC-21 353 No No Yes No

. Bldg. Inside Sec. SMeld I

N. E. Quad.

Rx. Bldg. Inside Sec. Shield RC-2'd 353 No No Yes No N.E. Quad.

346 No No Yes No C*

"8 RC-9 N. E. Quad. Near ftC-V31 Rx. Bldg. Inside Sec. Shield RC-7 353 No No Yes No N.E. Quad. Near RC-V31 353 No No Yes No RC-8 8*

N.E. Quad. Near RC-V31 ldg.

nside Sec. Shield RC-6 U

353 No No Yes No N.E. Quad.

y

"** "ld8* I" Id*

d No Yes No 3h6 No RC-10 &

N.E. Quad.

RC-ll c

. Bldg. Inside Sec. W eld 328 No No Yes No O

N.E. Quad.

lix. Uldg. InSide Sec. Shield 328 g0 No Yes No

l.E.

Quad.

_ _,..r 8*

TABLE 316.1 SAFETY RELATED Sil0CK SUPPRESSORS (SNUBBERS)

~

Srn:W>er In Snubber Snubbers Snubbers Iligh Radiation Especially Inaccessible Accessible Snubber Area During Difficult During Normal During Normal HK No.

Iocation Elevation Shutdown" To Remove Operation Operation x.

g.

ns W Sec. h ld RC-13 321 No No Yes No N.E. Qund.

x.

g.

nside Sec. Shield 321 no No Yes No RC-lh N.E. Quad

E MUE-38

,Q ""

318 No No Yes No MUE-39 Rx. Bldg. Inside Sec. Shield 318 NO No Yes No N.E. Quad.

Rx. Bldg. Inside Sec. Shield 310 No No Yes No PR-23 4

N.E. Quad. RC-HV-1A Disch. Line x.

ldg. Inside Sec. Shield 3hD N'

No Yes No PR-24 N.E. Quad. RC-HV-1A Disch. Line Rx. Bldg. Inside Sec. Shield 3ho No No Yes No PR-25 N.E. Quad. RC-RV-1B Disch. Line Ex. Bldg. Inside Sec. Shield PR-26 3ho No No Yes No N.E. Quad. RC-RV-1R Disch. Line PR-34 3h5 No No Yes No N.E. Quad. RC-HV-1A Disch. Line x.

dg.

nsi hie d PR-36 3h5 No No Yes No N.E. Quad. RC-RV-1A Disch. Line itx. Bldg. Inside Se. Shield PR-35 3h5 No No Ye h

N.E. Quad. RC-RV-1B Disch. Line Rx. Bldg. Inside Sec. Shield PR-37 3,45 No y

y N.E. Quad. RC-RV-1B Disch. Line dg.

nsi e.

hield PR-h7 355 No No Yes No N.E. Quad. RC-HV-2 Diech. Line dx. Bldg. Inside Sec. Shield pg4g 355 No No Yes No N.E. Quad. RC-RV-2 Disch. Line NSE-77 Rx. lildg. Inside Sec. Shield 333 No No Yes No N.E. Quad.

NSE ~

O 0*

1"8

d 33h No No Yes No U

i N.E. Qur.d.

"** U "*

"8I * *** hi NSE-79 331 No No Yes No*

O N.E. Quad.

332 No

'No Yes No NSE-75 C >

N.E. Quad.

CD

-..w_.-,-

Tage 3 or 13 '

TABLE 3 16 1 SAFETY RELATED SilOCK SUPPRESSORS (SNMBBERS)

Snubber In Snubber Snubbers Snubbers liigh Endistion Especially Inaccessible Accessible Ares During Difficult During Normal During Normal X1evation Shutdown' To Remove Operation Operation Snubber MK No.

Incation No Yes No NSE-76 Rx. Bldg. Inside Sec. Shield 332 No N.E. Quad.

Rx. Bldg. Inside Sec. Shield 33b No No Yes No NSE-103, N.E. Quad.

No Yes No -

E' 3 31:

No NSE-lots N.E. Quad.

No Yes No Rx. Bldg. Inside Sec. Shield 3 31' No NSE-105 N.E. Qund.

No Yes No Ex. Bldg. Indde Sec. SMeld 3 31 No NSE-108 N.E. Quad.

No Yes No Rx. Bldg. Inside Sec. S&M 331 No NSE-110 N.E. Quad.

No Yes No Rx. BM g. Ins W Sec. h ld 332 No NSE-112 N.E. Quad.

338 No No Yes No E*

"8 NSE-ll3 N.E. Quad.

x.

g.

nsMe Sec. Neld 338 No Yes Yes No MS-201 N.E. Quad.

Hx. B dg. Inside Sec. Shield 332 No No Yes No NSE-80

.S.E. Quad.

NSE-81 331 No No Yes No 6*

S.E. Quad.

No NSE-82 331 No No Yes E'

S.E. Quad.

hx. bl<lg. Inside Sec. Shield 338 h

No Yes No NSE-96 S.E. Quad.

NSE-96A 338 No No Yes No

- " dE'

"* d" S.E. Quad.

E'

"'I * **

3 31 No No Yes No USE-151 S.E. Quad.

331 No No Yes No h**

E' "81 USE-153_.

S.E. Quad.

No Yes No B

Inside Se. Shield 330 No EF-ll6ba g

Yes Yen No H r.. Bldg. Inside Se. Shield 325 yO l

W-109 S.E. Quad.

m 4w

- ~ ~

i TABLE 3 16.1 page 4 of 15 SAFETY RELATED SIIOCK SUPPRESSORS (SNUBBERS)

~

i Snubber In Snubber Snubbers Snubbers liigh Radiation Especially Inaccessible Accessible nubber Area During Difficult During Normal During Normal MK No.

Location Elevation Shutdown

To Hemove Operation Operation s

x.

dg. Inside Sec. Shield Yes Yes No W-110 325 No S.E. Ound.

Rx. Bldg. Inside Sec. Shield No Yes No MUE-20,

315 No S.E. Quad.

MUE-69 310 Yes Yes No hx. B dg. Inside Sec. Shield No S.E. Quad.

NSE-85 332 Yes Yes No Rx. Bldg. Inside Sec. Shield No N.W. Quad.

NSE-86 331 Yes Yes No Rx.

Idg. Inside Sec. Shield No

.N.W. Quad.

NSE-87 331 Yes Yes No g.

nsW &c. MM No N.W. Quad.

6*

"8i * ** hi 33h Yes Yes No NSE-88 No N.W. Quad.

33h No Yes No IdC' "81 * ***

'i' USE-131 No N.W. Quad.

No Yes No

"** Bidd* I"81d* 8*

8I'I*1d 334 no NSE-132 N.W. Quad.

1 No Yes No S*

"i NSE-133 336 no N.W. Quad.

U*

"i

'i' Yes Yes No NSE-138 331 no N.W. Quad.

h No Yes No 8*

"8 NSE-lkl 331 No N.W. Quad.

dC' "81 * **

'I No Yes No NSE-lh2 331 no N.W. Quad.

No

"** hl M*

"810 hi lio Yes MUE-43 310 no N.W. Quad.

310 No No Yeh No MUE Isla Rx. Bldg. Inside Sec. Shield H.W. Quad.

310 No No Yes No Rx. Bldg. Inside Sec. Shield

-h2 N.W. Qund.

(-

310 No No

'Yes No C

- D 6*

"81

hi" CF-16 Ci >

N.W. Quad.

x. B

g. Inside Sec. Shield 316 No No Yes No CF-16A C

)

N.W. Quad.

-- ~

~

TABLE 3.16.1 Page 5 of 15,

SAFETY RELATED Sii0CK SUPPRESSORS (SNUBBERS)

~

Snubber In Snubber Snubbers Snubbers liigh Radiation Especially Inaccessible Accessible Snubber Area During Difficult During Normal During Norri HK No.

Location Elevation Shut.down' To Remove Operation Operation NSE-89 Rx. Bldg. Inside Sec. Shield 33:

No Yes No 1

S.W. Quad.

No E'

No Yes No NSE-90 3 31:

No S.W. Quad.

Rx. Bldg. Inside Sec. S m ld No Yes No NSE-91 3 314 S.W. Quad.

No C*

"81 h

No Yes No USE-92 3 318 No S.W. Quad.

Rx. Bldg. Inside Sec. Shield NSE-122 3142 N

I'8 No S.W. Quad.

Rx. Bldg. Inside Sec. Shield 3 31' No No Yes No NSE-129 S.W. Quad.

- Bldd* I"8id" 8*"* O M *10 1

No Yes No NSE-130 33:

No S.W. Quad.

Rx. Bldd. Inside Sec. Shield

,,g 325 No No Yes No S.W. Quad.

Rx. Bldg. Inside Sec. Shield 5

325 No No Yes No S.W. Quad.

Rx.

Idg. Inside Sec. Shield EF-113 320 No Yes Yes No S.W. Quad.

Rx. Bldg. Inside Sec. Shield

pg_3, 302 No Yes Yes No S.W. Quad.

pg,5 302 No Yes Yes No O

Ex. Bldg. Inside Sec. Shield W

S.W. Quad.

Rx. Bldg. Inside Sec. Shield 316 No No Yes No CF-6 S.W. Quad.

Rx. Bldg. Outside Sec. Shield 340 No No No Yes 1

Dil-32 N.E. Quad.

Rx.111dg. Outside Sec. Shield 337 No Yes No No MS-202 N.E. Quad.

Itx. Bldg. Outside Sec.. Shield r.G-20 L 337 No Yes No No N.E. Quad.

-2b Rx. Illdg. Outside Sec. Shield 33T No Yes No No A

N.E. Quad.

Ex. Bldg. Outside Sec. Sliield 337 No Yes No No 1.E-207 n

N.E. Quad.

e.

~~

TABLE 316.1 Page 6 of 15 SAFETY REIX"ED S110CK SUPPRESSORS (SNUBBERS)

Snubber In Snubber Snubbers Snubbers Illgh Radiation Especially Inaccessible Accessible Snubber Area During Difficult During Normal During Nozza MK No.

Incation Elevation Shutdown

To Remove Operation Operation dx B1 g. Outside Sec. Shield 2%

337 No Yea No No N.E. Quad.

Ex. Bldg. Outside Sec. Shield 337 No Yes No No MS-286,

N.E. Quad.

- UldU' U" "Id* 6*

O A*10 326 No Yes No No PR-38 N.E. Quad.

x. B1 g. Outside Sec. Shield 326 No Yes No No PR-39 N.E. Quad.

Rx Bldg. Outside Sec. Shield 326 No Yes No No PR 10 6

N.E. Quad.

Rx. Bldg. Outside Sec. Shield 326 No Yes No No p

N.E. Quad.

BM g. O d s Me Sec. N e M 326 No Yes No No PR 32 4

N.E. Quad.

Rx. Blog. Outside Sec. Shield 326 No Yes No No p

N.E. Quad.

Yes 309 No No No C'

"8 PR l t.

i N.E. Quad.

Rx. Bldg. Outside Sec. Shield 309 No No No Yes p

N.E. Quad.

Rx. Bldg. Outside Sec. Shield 309 No No No Yec PR 16 4

N.E. Quad.

Ex. Bldg. Outside Sec. Shield 326 No Yes No No pg,,,9 N.E. Quad.

Rx. Bldg. Outside Sec. Shield 326 Na Yes No No PR-50 N.E. Quad.

Ex. Bldg. Outside Sec. Shield Yes 309 No No No CF-g N.E. Quad.

Ex. Bldg. Outside Sec. Shield 309 No No No Ye9 N.E. Quad.

Ex.

Idg. Outside Sec. Shield 338 No Yes No Fo E.-200 ~

( -

S. E. Quad.

g. OutsW Sec. MM 338 No Yes No No MS-201. C C

S.E. Quad.

Iix. nidg. Outside Sec. Shield 338 No Yes No No MS-205 C S.E. Quad.

~ ~ ~ " ~

7 ~...

~

TABLE 3.16.1 Page 7 of 15 SAFETY RELATED SilOCK SUPPRESSORS (SNUEBERS)

Snubber In Snubber Snubbers Snubbers Iligh Radiation Especially Inaccessible Accessible Area During Difficult During Normal During Norma Snubber MK No.

Ioce. tion Elevation Shutdown" To Remove Operation Operation MS-291 Rx. Bldg. Outside Sec. Shield 336 No Yes No No S.E. Ound.

31 1 No Yes No, No x.

dg.

utsid hield BS-27 S.W. Quad.

3 :1 No Yes No No Rx. Bldg. Outside Sec. Shield 1

2'M S.W. Quad.

dx. Bldg. Outside Sec. Shield 318 No No No les MUE 10 4

S.W. Quad Rx. Bldg. Outside Sec. Stield 318 No No No Yes

_g S.W. Quad.

Rx. Bldg. Outside Sec. Shield 335 No Yes No No 5

S.W. Quad.

BS-6 Rx. Bldg. Outside Sec. Shield 335 No Yes No No S.W. Quad.

Rx. Bldg. Outside Sec. Shield 337 No Yes No No BS-26 S.W. Quad.

Rx. Bldg. Outside Sec. Shield 297 No No No Yes S.W. Quad.

Rx.

Idg. Outside Sec. Shield 297 No No No Yes 2

S.W. Quad.

Ex. Bldg. Outside Sec. Shield 297 No No No Yes CF-7 S.W. Quad.

g Rx. Bldg. Outside Sec. Shield 297 No No No Yes T

g S.W. Quad.

Dx, Bldg. Outside Sec. Shield 308 No Yes No No S.W. Quad.

Rx. Bldg. Outside Sec. Shield 30T No "

Yes No No BS-.T S.W. Quad.

Rx. Bldg. Outside Sec. Shield 291 No No No Yes S.W. Quad.

hx.

ldg. Outside Sec. Shield 291 No No No Yes BS-23 U

S.W. Quad.

BS-214 291 No No No Yes Hx. H g.

utside Sec. Shield CC S.W. Quad.

293 No No No Yes "8

BS-25 g g,

LT1

_.- w----- ---. _ z.

TABE 316 1 Page 8 of 15 SAFETY RELATED SHOCK SUPPRESSORS (SNUBBERS)

Snubber In Snubber Snubbers Snubbers High Radiation Especially Inaccessible Accessible, Area During Difficult During Normal During Nonnal Snubber MK No.

Incation Elevation Shutdown" To Remove Operation Operation Rx. Bldg. Outside Sec. Shield 295 No No No Yes DN-23 S.W. Quad.

Rx. Bldg. Outside Sec. Shield 295 No No No Yes DN-2h S.W. Quad.

Rx. Bldg. Outside Sec. Shield 338 No Yes No No h

MS-208 N.W. Quad.

Hx. Bldg. Outside Sec. Shield 338 No Yes No No 209 N.W. Quad.

MS-210 338 No Yes No No 8*

N.W. Quad.

Ex.

Idg. Outside Sec. Shield 338 No Yes No No MS-2H N.W. Quad.

Rx.

ldg. Outside Sec. Shield 338 No Yes No No 212 N.W. Quad.

e Rx. Bldg. Outside Sec. Shield 338 No Yes No No 213 N.W. Quad.

No No Rx. Bldg. Outside Sec. Shield 338 No Yes

&2g N.W. Quad.

Ex. Bldg. Outside Sec. Shield 338 No Yes No No E-2U N.W. Quad.

Rx. Bldg. Outside Sec. Shield 338 No Yes No No MS-287 N.W. Quad.

Rx.

ldg. Outside Sec. Shield 338 No Yes No No E-288 N.W. Quad.

Rx.

Idg. Outside Sec. Shield 320 No No No Yes FWW2 N.W. Quad.

Rx. Bldd. Outside Sec. Shield 320 No No No Yes g

N.W. Quad.

Rx. Bldd. Outside Sec. Shield 320 No No No Yes FW408 N.W. Quad.

Rx. b1dg. Outside Sec. Shield 320 No No No Yes FWG -

L 1

N.W. Quad.

Rx. Blog. Outside Sec. Shield 298 No No No Yes DN-20 C 3 N.W. Quad.

Rx. Bldg. Outside Sec. Shield 298 No No No Yes DH-21 C )

N.W. Quad.

s Ch

=

.--...---.---7_

TABLE 3.16.1 Page 9 of 15 SAFETY RELATED Sil0CK SUPPRESSORS (SNUBBERS)

Snubber Snubbers Snubbers Snubber In Iligh Radiation Especially Inaccessible '

Accessible Area During Difficult During Nor:nal During Normal U""* #

}GC No.

Incation Elevation Shutdowns To Remove Operation Opere. tion Dll-22 Rx Bldg. Outside Sec. Shield 295 No No No Yes N.W. Quad.

Int. Bldg. on MS-V-lD 355 No Yes No No MS-216 3 41 No Yes No No 1

MS-217 Int. Bldg. on MS-V-1C O

31 1 No Yes No No HS-218 Int. Bldg. on MS-V-1C 4

MS-219 Int. Bldg. on MS-V-lC 355 No No No Yes MS-220 Int. Bldg. on MS-V-lD 355 No No No Yes 3 :1 No Yes No No 1

MS-221 Int. Bldg. on MS-V-]D 31 1 No Yes No Ifo MS-222 Int. Bldg. on MS-V-1B 4

No No 31 1 No Yes 1G-223 Int. Bldg. on MS-V-1A 4

MS-22!4 Int. Bldg. on MS-V-1A yel No No No Yes MS-225 Int. Bldg. on MS-V-1B 355 W:

No No Yes h

MS-226 Int. Bldg. on MS-V-lc 355 No No No Yes MS-227 Int. Bldg. on MS-V-1A 355 No No No Yes MS-289 Int. Bldg. on MS-V-1A 355 No No No Yes 1:3-290 Int. Bldg. on MS-V-1B 3141 No No No Yes MS-228A Int. Bldg. on A RV lidr.

337 No Yes No No MS-228BCC Int. Bldg. on A RV lidr.

337 No Yes No No CC MS-229 Int. Bldg. on B RV lidr.

337 No Yes No No u

'a

~

esn sl ro 3

rboi s

s s

s bs a

o o

e o

o o

e e

1 eiNt s

bsgr N N Y-N N

N N

N Y

Y Y

Y fo uene ncip 0

ScrO 1.

AuD ega P

l ea l mn sb ro rioi esNt b egr o

o o

e o

o o

o bs a

ucne N

N N

N ncip S arO nu ID yte ll v rl uo eacm bcfR s

s s

biie

)

uef e

e o

e e

e o

o o

o S

n pi o Y

Y N

Y Y

Y N

N N

N R

SsDT E

E B

B IR I

n S(

o i

S t g R

nan O

I i i "n S

d r S

rauw o

o o

o N

N N

N E

eHDo R

b d

j P

bhat 1

P ugeu 6

U nl rh 1

S SI AS l

3 K

C E

0 n

l L

i B

S o

i A

0 0

s 4

h D

t s

s h

4 1

x.

T 3

3 1

1 1

1 2

2 0

0 0

0 s

E a

7 7

h 4

1 1

1 3

3 3

3 T

v A

e L

l E

E R

Y T

E F

A S

1 1

r r

d d

P P

H N

F F

P F

V V

E E

R R

r r

C D

a a

e e

n n

N N

o o

g g

n d

d d

d o

l l

i B

B B

B ta c

t t

o n

n n

n L

I I

-, C C C -

i A

e.

0 1

3 4

5 6

7 8

9 0

3 7

7 7

5 6

0 r

3 1

4 7

7 s

bo 3

3 5

3 3

3 4

1 bN 2

2 6

2 2

2 12 2

1 u

nK 6

S G

G S

G 6

S S

S G

S S

S M

M M

F M

M M

M I

1 SM M

I 1

1 f

I

TABLE 3 3 6.1 Page 11 of 15 e

SAFETY RELATED Sil0CK SUPPRESSORS (SNUBBERS)

{

Snubber Snubbers Snubbers Snubber In liigh Radiation Especially Inaccessible Accessible Snubber Area During Difficult During Normal During Norad MK No.

Iocation Elevation Shutdown

To Bemove Operation Operation IG-271 Int. Bldg. Near EF-P-1 300 No Wo No Yes Int. Bldg. B W Catch IIdr.

325 No No No Yes W-121 W-122 Int. Bldg. B W Catch Ildr.

325 No No No Yes Int. Bldg. Near EF-P-2A 302 No No No Yes EF-734 EF-75 Int. Bldg. Near EF-P-2B 302 No Yes No No EF-76 Int. Bldg. Near EF-P-2B 302 No Yes No No EF-85 Int. Bldg.

302 No No No Yes EF-87 Int. Bldg. Near EF-P-1 302 No No No Yes No Yes EF-88 Int. Bldg. Necr EF-p-1 302 No No EF-89 Int. Bldg.

305 No Yes No No W-116 Turb. Bldg. A W Catch Ildr.

323 No No No Yes W-118 Turb. Bldg. A W Catch lidr.

323 No No No Yes DCll-58 Aux. Bldg. IIX Vault 286 No Yes No No No DCil-59 Aux. Bldg. IIX Vault 286 No Yes No DCil-68 Aux. Bldg. IIX Vault 286 No Yes No No NSE-12 L 7 Aux. Bldg. IlX Vault 286 No Yes No No C

NSU-13 Aux. Blde. IIX vault 286 No Yes No No NSE-lla g Aux. Bldg. IlX Vault 286 No Yes No No u ;

-Q

~~ ~~- --

.. -..,.. - m.- mv:.n:mw,

y TABLE 316.1 Fage 12 of J5,,

SAFETY RELATED S110CK SUPPRESSORS (SNUBBERS)

F

^

Snubber Snubbers Snubbers Snubber In Especially Inaccessible Accessible liigh Radiation Difficult During Normal During Norna)

Snubber Area During To Remove Operation Operation MK No.

Iocation Elevation Shutdown =

NSE-15 Aux. Bldg. IlX Vault 2 814 No Yes No No Aux. Bldg. IIX Vault 2 814 No Yes No No NSE-16 g

NSE-17 Aux. Bldg. IlX Vault 2 81:

No Yes No No No MUE-6 Aux. Bldg. Valve Alley 283 Yes Yes ye, No MUE-7 Aux. Bldg. Valve Alley 283 Yes Yes y,,

No Mull-318 Aux. Bldg. Valve Alley 288 Yes Yes Yes No Hull-319 Aux. Bldg. Valve Alley 288 Yes Yes ye, a

Mull-321 Aux. Bldg. Valve Alley 288 Yes Yes No y,,

No Mull-322 Aux. Bldg. Valve Alley 288 Yes Yes y,,

dlilI-196 Aux. Bldg.

29T No Yes No No NSE-T liux. Bldg.

295 No Yes No No NSE-8 Aux. Bldg.

295 No No No Yes NSE-9 Aux. Bldg.

293 No

No No Yes NSE-lO Aux. Bldg.

291 No Yes No No NSE-11 Aux. Bldg.

291 No No No Yes NSE Aux. Bld.

291 No No No-Yes 6

(

C Aux. Bldg.

297 No Yes No No NSE-33 os NSE-37 Aux. Bldg.

293 No No No Yes C,

t.

i

3 a

emn sl ro rboi eiNt bs a

o o

5 bsgr N

N N

N 1

uene ncip f

ScrO o

Au D

3 1

eg l

a P

ea l mn sbro rioi esNt b s a

begr o

o o

o ucne N

N N

r N

N N

N ncip S arO nu ID yt e ll v rl uo eacm biie bcfR s

s s

s

)

uef e

e e

e S

n pi o Y

Y Y

Y R

EB S sDT E

B UN S

(

no S

i R

t g O

nan S

Iii*

S d rn E

rauw R

eRDo o

o o

o P

b d

N N

P bhat U

ugeu S

nl rh SI AS l

^

KC0 7

l iS no y

D i

T a

5 5

5 S

5 5

0 0

~.

E t

~~

A v

9 9

7 7

7

?

7 7

1 1

L e

2 2

3 3

E l

R E

YTE F

A S

y y e

e l

l l

l A

A e

e m

m m

m v

v o

o o

o l

l o

o o

o a

a R

R R

R B

R R

R B

R R

R V

V A

A A

A n

B B

B A

A B

B d

d 1

1 1

1 i

1 1

1 n

n E

E P

P P

P S

S S

S l

i l

l i

l l

i i

l i

i l

i i

l l

N N

D D

B B

g g

2 g

g g

n d

d d

d o

l l

i B

B B

B t

ac x

x x

x n

u u

I A

A A

' i g

(

r.

1 2

7 8

2 7

8 0

l e

1 1

8 8

2 3

1 9

9 T

1 l

5 9

bo 3

3 1

1 1

1 9

1 2

3 bN E

E E

E 1

E E

2 S

S S

E E

l I

l l

i l

S S

S u

l I

l l

P P

P S

P P

S S

S nK U

U ll l

l l

P P

P i

I i

SM M

D D

S S

S D

D S

S S

B S

S B

N N

i l

t:

TABLE 3.16.1 t

Page 14 of 13 -

SAFETY REllTED S110CK SUPPRESSORS (SNUBBER 3)

Snubber In Snubber Snubbers Snubters Ifigh Radiation Especially Inaccessible Act.essible Area During Difficult During Normal During Norma 3 HIC No.

Location Elevation Shutdown

To Remove Operation Operation Snubber

~

NSE-23 Aux. Bldg. NSP Discharge 322 No Yes No No Aux. Bldg. NSP Suction 321e No Yes No No NSE-21:

NSE-27 Aux. Bldg.

320 No Yes No No O

NSE-29 Aux. Bldg. NS to SF Cooler 320 No Yes No No RW-72 Aux. Bldg. IIX Vault 290 No Yes No No RW-73 Aux. Bidg. IIX Vault 290 No Yes No No RW-75 Aux. Bldg. IIX Vault 290 No

'le s No No RWE-8 Aux. Bldg. I!X Vault 290 No Yes No No RWE-9 Aux. Bldg. IIX Vault 293 No Yes No No RWE-10 Aux. Bldg. IIX Vault 290 No Yes No No RVE-ll Aux. Bldg. IlX Vault 290 No Yes No No h

Ho No RWE-12 Aux. Bldg. !!X Vault 290 No Yes RWE-13 Aux. bldg. HX Vault 290 No Yes No No RWE-lla Aux. Bldg. IlX Vault 290 No Yes No No IPE-1 Intake Pump liouse 290 No No No Yes IPE-2 ]

Intake Pump flouse 290 No No No Yes IPE-3 M Intake Pump ilouse 290 No No No Yes l

No Yes IPE14 C Intake Pump llouse 290 No No 1

l 1

.=

TABLE 3.16,1 Page 15 of 15 SAFETY RELATED S110CK SUPPRESSORS (SNUPMERS)

Snubber SruGbers Snubbars Snubber In Nigh Radiation Especially Inaccessible Accessible j

1 Difficult During Normal During Normal I Snubber Area During MK No.

Location Elevation Shutdown

To Remove Operation Operation IPE-5 Intake Pump House 290 No Na No Yes IPE Intake Pump House 290 No No No Yes IPE-T Intake Pump llouse 290 No fio No Yes O

IPE-8 Intake Pump House 290 No No No Yes IPE-9 Intake Pump House 290 No No No Yes "d*#

" *#~

3 60 Yes 1

RCP-1A Reactor Bldg. on RCP-1A Reservoir-No Reservoir-No Cylinder-No "d*#~

n er-es Resenoir-Yes RCP-1B Reactor Bldg. on RCP-1B 3:10 Yes Reservoir-No Peservoir-No Cylinder-No ylinder-Yes esenoir-Yes CYll"d*#-"

Yes 31 0 RCP-lC Reactor Bldg. on RCP-1C J1eservoir-No Reservoir-No Cylinder-No 4

"d*#

ylinder-es Resenoir-Yes RCP-1D Reactor Bldg. on RCP-1D 3fa0 Yes Reservoir-No Reservoir-No Cylinuer-No Modificatior s to this table d te to changes in hirh radi ation nrean shnnld he nnhmi t t aa g to the NRC # s part of the nex, license amendment.

4 LD cm CO W

Un

&

ML19210B624

Text

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