ML20076D290

Forwards Revised Listing of Seismic Class I Snubbers.Suppl to 830520 Request for License Amend,Incorporating Rev,Will Follow,Pending Review by Nuclear Facility Safety Committee

ML20076D290
Person / Time
Site:	Fort Saint Vrain
Issue date:	08/08/1983
From:	Warembourg D PUBLIC SERVICE CO. OF COLORADO
To:	Jay Collins NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
References
IEB-79-14, P-83273, NUDOCS 8308230331
Download: ML20076D290 (18)

Text

-

O o

~

PLIblie NI*VIPO {'OI11pittly @(CEOGIISdD

~

16805 WCR 19 1/2, Platteville, Colorado 80651 ggsW August 8, 1983 Fort St. Vrain Unit #1 P-83273 T W@ B

- WR

• Mr. John T. Collins, Regional Administrator Region IV U. S. Nuclear Regulatory Commission E I5123 611 Ryan Plaza Drive Suite 1000 8

Arlington, TX 76011

SUBJECT:

Revision to the Fort St. Vrain Seismic Class I Snubber List

REFERENCE:

PSC Letter, Lee to Collins Dated May 20, 1983 (P-83180)

Dear Mr. Collins:

Attached is a revised listing of the Seismic Class I snubbers at Fort St. Vrain. All snubbers new to the list are identified with an asterisk and were added as a result of the Seismic Redocumentation Program completed this year. Addition of Class I snubbers without an immediate Technical Specification Amendment request is permitted by Fort St. Vrain specification LCO 4.3.10(e).

In the referenced letter, Public Service Company requested an amendment to Section 4.3 and 5.3 of the Fort St.

Vrain Technical Specifications.

A supplement to that request incorporating the revised Class I snubber list will follow pending review by our Nuclear Facility Safety Committee.

, All hydraulic snubbers on the attached list can be demonstrated

/ operable per the criteria specified in both the ~ present specifications and those proposed in the referenced letter. The mechanical snubbers, however, can only be demonstrated operable per the criteria presented in IE Bulletin 79-14 at this time due to a lack of testing equipment for mechanical snubbers.

h

!!#*!!88Ng88gh

~

t

~

I-The arrival of a testing device for mechanical snubbers is expected in mid-August.

Following its installation and the completion of any associated personnel

training, a prograrn to demonstrate the operability of the mechanical snubbers per the criteria proposed in the referenced letter will be initiated.

If you have any questions, please contact Mr. Frank Novachek at (303) 785-2224, extension 270.

Very truly yours, Oo, W. %enbosq & -Tr]Af We4&

Don W. Warembourg Manager, Nuclear Production

~

Attachments DW/djm P

e t

l f

4 y

SYSTEM 11 Loco I HELIUM VENT SNUBBERS HVS-1-1

• HVS-2-1

• HVS-3-1

• HVS-4-1

• HVS-1-2

• HVS-2-2

• HVS-3-2

• HVS-4-2

• m I

I 1

l 1

I

SYSTEM 21 Loop I EMERGENCY BOILER FEED SNVBBERS BFS-141E BFS-210E BFS-260E BFS-359E

• BFS-142E BFS-216E BFS-263E BFS-364E

• BFS-143E BFS-218E BFS-264E BFS-366E

• BFS-154E BFS-219E BFS-268E BFS-367E

• BFS-158E BFS-228E BFS-269E BFS-374E

• BFS-167E BFS-229E BFS-316E

• BFS-380E

• BFS-181E BFS-243E BFS-317E

• BFS-398E BFS-197E BFS-244E BFS-320E

• BFS-399E BFS-203E BFS-245E BFS-344E

• BFS-405E BFS-204E BFS-257E BFS-345E

• SYSTEM 21 Loop II EMERGENCY BOILER FEED SNUBBERS BFS-14E BFS-29E BFS-53E BFS-76E BFS-ISE BFS-30E BFS-56E BFS-77E BFS-16E BFS-31E BFS-57E BFS-89E.:.

BFS-26E BFS-47E BFS-74E BFS-122E a:

b I

d. '

f G

e j

s

4-SYSTEM 21,

Common BOILER FEED SNUBBERS BFS-870 BFS-871 i

TURBINE WATER DRAIN SNUBBERS

(,

TWDS-1 TWDS-6 TWDS-12

• TWDS-2 TWDS-7 TWDS-13

• TWDS-3 TWDS-8 TWDS-14

• TWDS-4 TWDS-9 TWDS-5 TWDS-10 P

G e

1 4

SYSTEM 22 Loop I BOILER FEED SNUBBERS - STEAM GENERATORS BFS-B1-1 BFS-B-1-4 BFS-B1-2 BFS-B-1-5 BFS-B-1-3 BFS-B-1-6 EMERGENCY BOILER FEED SNUBBERS BFS-414E BFS-421E BFS-417E BFS-422E BFS-419E BFS-423E BOILER FEED SNUBBERS BFS-397-BFS-564 BFS-641 BFS-796 BFS-398 BFS-566 BFS-679 BFS-820 BFS-400 BFS-573 BFS-711 BFS-823 BFS-402 BFS-577 BFS-763 BFS-843 BFS-563 BFS-614 -

BFS-764 BFS-844 COLD REHEAT SNUBBERS - CIRCULATORS CRS-C-1-1 CRS-C-1-4 CRS-C-2-1 CRS-C-2-4 CRS-C-1-2 CRS-C-1-5 CRS-C-2-2 CRS-C-2-5 CRS-C-1-3 CRS-C-1-6 CRS-C-2-3 CRS-C-2-6 COLD REHEAT SNUBBERS CRS-229 CRS-589 CRS-751 CRS-822 CRS-838

• CRS-382

• CRS-591 CRS-752 CRS-827

• CRS-870

• CRS-476 CRS-632 CRS-765

• CRS-828

• CRS-871

• CRS-521 CRS-664 CRS-766

• CRS-829

• CRS-872

• CRS-549 CRS-674 CRS-768

• CRS-831

• CRS-879

• CRS-556-1 CRS-707 CRS-769

• CRS-832

• CRS-880 *

.CRS-557 '

CRS-742 CRS-821 CRS-836

• CRS-881

• HOT REHEAT SNUBBERS hs6-243 HRS-289

. HRS-324 HRS-357 HRS-414 HRS-244 HRS-314 HRS-348 HRS-378 HRS-416 HRS-246 HRS-315 HRS-349 HRS-379 HRS-421 HRS-278 HRS-318 HRS-351 HRS-381 HRS-422 HRS-279 HRS-321 HRS-356 HRS-413 HRS-990 HRS-281 s

put J E ii -

N' l

l SYSTEM 22 Loop I MAIN STEAM SNUBBERS 5

MSS-239 MSS-284 MSS-347 MSS-421 MSS-909

• MSS-246 MSS-291 MSS-348 MSS-422 MSS-911

• MSS-247 MSS-304 MSS-356 MSS-424 MSS-912

• MSS-248 MSS-311 MSS-369 MSS-431 MSS-988 MSS-249 MSS-312 MSS-376 MSS-433 MSS-257 MSS-314 MSS-377 MSS-451

• MSS-258 MSS-321 MSS-379 MSS-901

• MSS-274 MSS-339 MSS-414 MSS-906

• MSS-281 MSS-346 VENT STACK SNUBBERS VSS-101 VSS-104 VSS-107 VSS-110 VSS-111 VSS-102 VSS-105 VSS-108

I.

l SYSTEM 22 Loop II BOILER FEED SNUBBERS - STEAM GENERATORS BFS-B-2-1 BFS-B-2-4 BFS-B-2-2 BFS-B-2-5 BFS-B-2-3 BFS-B-2-6 BOILER FEED SNUBBERS BFS-54 BFS-416 BFS-516 BFS-530 BFS-142 BFS-437 BFS-523 BFS-532 BFS-149 BFS-451 BFS-526 BFS-534 BFS-297 BFS-467

• BFS-528 BFS-536 BFS-352 BFS-468

• BFS-529 BFS-537 COLD REHEAT SNUBBERS - CIRCULATORS CRS-C-3-1 CRS-C-3-4 CRS-C-4-1 CRS-C-4-4 CRS-C-3-2 CRS-C-3-5 CRS-C-4-2 CRS-C-4-5 CRS-C-3-3 CRS-C-3 CRS-C-4-3 CRS-C-4-6 COLD REHEAT SNUBBERS CRS-29 CRS-146 CRS-317-2 CRS-377

• CRS-422

• CRS-31 CRS-187 CRS-320

• CRS-378

• CRS-431

• CRS-72 CRS-191 CRS-321

• CRS-379

• CRS-474 CRS-76 CRS-219 CRS-323

• CRS-381

• CRS-517 CRS-104 CRS-262 CRS-324

• CRS-386

• CRS-636 CRS-114 CRS-297 CRS-371 CRS-388

• CRS-144 CRS-317-1 CRS-372 CRS-389

• HOT REHEAT SNUBBERS HRS-23 HRS-69 URS-104 HRS-158 HRS-196 HRS-24 HRS-94 HRS-105 HRS-159 HRS-201 HRS-26 HRS-95 HRS-128 HRS-161 HRS-202

' HRS-58 HRS-98 HRS-129 HRS-193 HRS-205 HRS-59 HRS-101 HRS-131 HRS-194 HRS-985 HRS-61 HRS-103 i

s

y_

-g-SYSTEM 22 Loop II MAIN STEAM SNUBBERS

~

MSS-9 MSS-52 MSS-116 MSS-149 MSS-222 MSS-16 MSS-54 MSS-117 MSS-184 MSS-225

• MSS-17 MSS-61 MSS-118 MSS-191 MSS-227

• MSS-18 MSS-64 MSS-125 MSS-192 MSS-774

• MSS-19 MSS-74 MSS-126 MSS-194 MSS-778

• MSS-27 MSS-81 MSS-139 MSS-201 MSS-779

• MSS-29 MSS-82 MSS-146 MSS-204 MSS-835

• MSS-44 MSS-84 MSS-147 MSS-206 MSS-836

• MSS-51 MSS-109 VENT STACK SNUBBERS VSS-113 VSS-116 VSS-119 VSS-122 VSS-1244 VSS-114 VSS-117 VSS-120 VSS-123 e

e

9_

SYSTEM 22 Loop I Byoass BOILER FEED SNUBBERS BFS-412 BFS-421 BFS-422 BFS-425 BFS-420 MAIN STEAM SNUBBERS MSS-85-1

• MSS-135-1 MSS-145-2 MSS-145-3 MSS-85-2

• MSS-145-1 SYSTEM 22 Loop II Bypass MAIN STEAM SNUBBERS MSS-95B

• MSS-120-1 MSS-120-2 MSS-120-3 MSS-95C

• BOILER FEED SNUBBERS BFS-434-1 BFS-434-2 BFS-434-3 BFS-435 e

4 4

..~

n--

.--,,-,,,.--.,--.-y

-..,.-.----,.y,-__--

SYSTEM 22 Common BOILER FEED SNUS$ERS BFS-553-1 BFS-556 BFS-922

• BFS-933

• BFS-553-2 EMERGENCY BOILER FEED SNUBBERS BFS-430E BFS-432E BFS-442E BFS-444E BFS-431E EMERGENCY CONDENSATE SNUBBERS ECS-1 ECS-8

• ECS-15-1

• ECS-21

• ECS-2 ECS-9

• ECS-15-2

• ECS-22

• ECS-3 ECS-10 *-

ECS-16

• ECS-23

• ECS-4 ECS-11

• ECS-17

• ECS-24

• ECS-5 ECS-12

• ECS-1B

• ECS-25

• ECS-6 ECS-13

• ECS-19

• ECS-7 ECS-14

• ECS-20

• e 0

SYSTEM 31 Common BOILER FEED SNUBBERS BFS-8

• BFS-110

• BFS-211

• BFS-325

• BFS-25

• BFS-117

• BFS-216

• BFS-358

• BFS-28

• BFS-138 BFS-221

• BFS-477 BFS-35

• BFS-139 BFS-235

• BFS-479 BFS-40

• BFS-152 BFS-239

• BFS-498 BFS-53

• BFS-153 BFS-256

• BFS-500 BFS-53A

• BFS-166 BFS-256-1 *

. BFS-501 BFS-61

• BFS-210

• BFS-282

• BFS-97

• 1 9

e p---..

v.-

,--,,--..--,.,,,,.v.,

,,,..,m

.-,_,,,.,_-,_w--._,,-,

..,.,-w v-,,n,,g..

t

- 12 SYSTEM 52 Loop I MAIN STEAM SNUBBERS MSS-831

• MSS-834

• MSS-869

• MSS-871

• MSS-833

• MSS-862

• MSS-870

• Loop I Bypass MAIN STEAM SNUBBERS MSS-822-1 Loop II MAIN STEAM SNUBBERS MSS-696

• MSS-717

• MSS-719

• MSS-721

• MSS-706

• MSS-718

• Common COLO REHEAT SNUBBERS CRS-445

• CRS-921

• CRS-962

• CRS-972

• CRS-446

• CRS-931

• CRS-964

• CRS-976

• CRS-902

• CRS-951

• CRS-967

• CRS-977

• CRS-910

• CRS-955

• CRS-969

• CRS-978

• CRS-911

• G

r-SYSTEM 52 Common HOT REHEAT SNUB 8ERS HRS-220

• HRS-507

• HRS-561

• HRS-958

• HRS-468

• HRS-515

• HRS-566

• HRS-961

• HRS-470

• HRS-520

• HRS-571

• HRS-966

• HRS-501

• HRS-525

• HRS-576

• HRS-971

• HRS-505

• HRS-540

• HRS-577

• HRS-972

• HRS-506

• HRS-546

• HRS-957

• MAIN STEAM SNUBBERS MSS-452

• MSS-495

• MSS-584

• MSS-453

• MSS-583A

• MSS-688

• o e

re SYSTEM 91 Loop I BOILER FEED SNUBBERS SFS-572 HOT REHEAT SNUBBERS HRS-428 MAIN STEAM SNUBBERS MSS-987

• MSS-988

• HYORAULIC OIL SNUBBERS GROUP I HOS-9 H05-14 H05-1 H05-5 H05-2 HOS-6 HOS-10 H05-17 H05-3 HOS-7 HOS-11 HOS-87 HOS-4-1 HOS-8 HOS-13 HOS-88 H05-4-2 GROUP II HOS'15 HOS-18 H05-20 HOS-91

• HOS-16 H05-19 H05-21 GROUP III H05-23 H05-25 H05-28 HOS-30 H05-24 H05-27 HOS-29 GROUP IV HOS HOS-35 H05-37 H05-85 HOS-33 H05-36 H05-38 HOS-86 H05-34 e

I

c SYSTEM 91 Looo II COLD REHEAT SNUBBERS CRS-420

• CRS-421

• HYDRAULIC OIL SNUBBERS GROUP I HOS-22 H05-59 H05-64 HOS-72 HOS-55 H05-60 H05-65 H05-73 HOS-56 HOS-61 H05-66 HOS-89 H05-57 H05-63 H05-71 H05-90 HOS-58 GROUP II HOS-39 H05-42 HOS-49 H05-75 HOS-40 HOS-48 H05-74 HOS-76 H05-41 GROUP III HOS-45 H05-50 H05-51 HOS-52 H05-46 GROUP IV H05-53 HOS-78 HOS-81 H05-83 HOS-82 HOS-84 HOS-54 HOS-79 H05-77 HOS-80 s

m

. 8, MECHANICAL SNUBBERS

• SYSTEM 22 22-7-SNI 22-23-SN2 22-73-SN1 22-128-SN1 22-11-SN1 22-30-SN1 22-73-SN2 22-132-SN1 22-23-SN1 22-68-SN1 22-100-SN1 22-132-SN2 SYSTEM INSTRUMENTATION I-72-SN1 I-73-SN2 I-179-SN1 I-179-SN2 I-73-SN1 VENT STACK SNUBBERS VSS-103 VSS-109 VSS-115 VSS-121 VSS-106 VSS-112 VSS-118 s

1 l

l l$

f..