ML18079A925
| ML18079A925 | |
| Person / Time | |
|---|---|
| Site: | Salem  |
| Issue date: | 08/16/1979 |
| From: | Schneider F Public Service Enterprise Group |
| To: | Grier B NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| References | |
| NUDOCS 7909180513 | |
| Download: ML18079A925 (20) | |
Text
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Frederick W. Schneider Public Service Electric and Gas Company 80 Park Place Newark, N.J. 07101 201/430-7373 Vice President Production ti r\\\\~\\\\
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Mr. Boyce H. Grier, Director U. s. Nuclear Regulatory Commission Office of Inspection and Enforcement Region 1 631 Park Avenue King of Prussia, Pennsylvania 19406
Dear Mr. Grier:
NRC IE BULLETIN NO. 79-14 NO. 1 UNIT SALEM GENERATING STATION August 16, 1979 In response to your.letter of July 18, 1979, transmitting ~RC IE Bulletin No *. 79-14 which was received on July 24, 1979, the following re~ort is offered pursuant to Item No. 1:
During the erection of piping systems for No. 1 Unit, a Stress Analysis Task Force was formed whose function was to assure, by inspection, that safety related piping conformed to stress isometric d~awings.
This included incorporating the ttas builttt conditions.
These ttas builttt conditions were revie~ed by Stress Engineering.
If the Stress Engineer determined that the revision was questionable, the calculation was rerun and the stress isometric updated.
If the condition was a minor deviation and no adverse effect would occur to the stress levels, this condition was accepted "as built" and noted on the stresi isometric.
As requested by this bulletin, we plan to field walk the safety related piping systems.
This will add assurance to identify non-conformances and confirm that our seismic input information conforms to the "as built" conditions.
See Attachment A for procedure.
There are 15 systems (see Attachment B) involved in the safety related piping investigation to confirm conditions of actual configuration.
., 909180 J/ j
Mr. B. 8/16/79 The inspection elements used for verifying the seismic analysis input for all safety related systems are shown in Attachment C.
In each system we have identified the. analytical isometrics which
'represent the calculated piping.
The isometrics incorporate the following information:
- a.
Arrangement drawing numbers - to obtain piping geometry.
- b.
Insulation drawing numbers - type, weight and location of insulation.
- c.
Hanger detail drawing numbers -
specific location and type of support.
- d.
Equipment manufacturer's print numbers -
the location of nozzles~ weights of valves, centers of gravity and dimensions.
In responding. to NRC Bulletin 79-07, we agreed to perform a stress walk by ourselves and by the NRC.
That sample walk ha~ taken place in the inaccessible areas of the containment by the Resident NRC Inspector, together with our Stress Engineer.
The procedure that was followed is described in Attachment A.
This same proce-dure shall be followed during our implementation of Item No. 2 of the subject Bulletin 79-14.
The tesults of these walks confirmed our previous assertions that the actual configuration conforms to the stress isometric drawings.
The inaccessible areas will be inspected first, as our plant is not operating at this time.
This will be followed by inspecting the remainder of the accessible areas *.
If you require additional information, we will be pleased to discuss, it with you.
Attch.
CC Office of Inspection and Enforcement Division of Reactor Operations Inspection Washington, D. C.
Mr. L. J. Norrholm Hancocks Bridge, N. J.
ATTACHMENT A PROCEDURE FOR STRESS ISOMETRIC VERIFICATION
- 1.
PURPOSE The purpose of the stress walk was to give reasonable assurance that the No. 1 Unit, Salem Nuclear Generat-ing Station, as constructed was represented on the isometric drawings (ISO} and, therefore, our stiess calculations are valid.
- 2.
GENERAL*
The Stress ISO Verification Program was initiated prior to No. 1 Unit "Hot Functional Testing."
The stress isometric was used to perform this function because it incorporates other drawings into one composite.
It is not drawn to scale, but shows dimensional piping configuration.
It also includes:
- a.
Pipe material, size and wall thickness.
- b.
Allowable SA values.
- c.
Operating Temperature
- d.
Specifications
- e.
Support location and type.
- f.
Insulation information.
- 3.
PROCEDURE 3.1 Verification of the stres~ isometrics involved in "Hot Functional" testing was done by checking the following:
3.1.1 Piping conforms to isometric configur-ation.
3.1.2 No obstructions impede thermal pipe growth:
- a.
Engineering thermal calculations were used to determine necessary cl~arance in sleeves.
- b.
Carefully checked location of first guide after a change in direction of pipe run.
- c.
Supports were described correctly on ISO and erected accordingly.
Sheet 1 of 2
ATTACHMENT A d.
Supports found to restrict or allow growth in the proper direciion.
3.1.3 Verified that a movement chart existed on the isometric where pipe was conriected to equipment.
3.1.4 Verified that bends and fittings were prop-erly defined.
On 2" diameter and smaller pipe, verified socket welded fittings.
3.T. 5 Control valves noted for center of.gravity and if valve was tilted, it was noted as such.
3.2 Upon completion of the "Hot Functional Testing" Stress Isometric Verification Field Walk, all discrepancies wera reviewed and the following steps were taken for achieving corrective status:
RCK:pd 3.2.1 Calculations were rerun as necessary, using "as built" information on the ISO.
3.2.2 Unacceptable calculations which occurred due to "as built" revisions, necessitated revisions by the field forces to correct "as built" conditions to agree with the original acceptable stress isometric.
3.2.3 These Stress Isometrics were then rewalked to verify corrections.
202 42/43 D Sheet 2 of 2
ATTACHMENT B
- The following is a list of 15 safety related systems which are planned to be inspected:
- 1.
Safety Injection System
- 3.
Steam Generator Feed System
~~*
Component Cooling System
- 5.
Nuclear System 6.* Auxiliary F~edwater System
- 7.
- 8.
Main Steam System
- 9.
~hilled Water System
- 10.
Chemical and Volume Control System
- 11.
Cont~ol Air System
- 12.
Diesel *Gen. Starting Air and Fuel System
- 13.
Steam Generator Blowdown System 14 *.
Spent Fuel Cooling System*
- 15.
Residual Heat Removal System RCK:aec 302 44 c Sheet 1 of 1
ATTACHMENT C SYSTEM:
REACTOR COOLANT Piping Stress Analysis Calculation Number 267177 2672088 267210 267210A
- 267210B 267210C 267217 267217A 267219 267221 267221A 2672218 267225 267325 267326 2.67325:\\
267327 267328 P79 61 13 Sheet 1 of 15
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ATTACHMENT C SYSTEM:
SAFETY INJECTION Piping Stress Analysis Calculation Number 267248 2671280 267243CC 267.248D 2671281 267244 267248E 2671282 2672448 267248F 2671283 26724488 267249 2671284 2672448C
- 267249A 2671285 267245A 267249C 2671286 267245A-l 267249D 2671286A 267245A-2 267249E 2671287A 2672458 2.67249F.
2671288 267245C 267249G 2671*289 267246 26.7249H 2671290 2671261A 267249J 2671291 2671262 267250 2671291A 2671263 267250A 2671292 2671263A 267253A 2671292A 26712638 267253C 26712.93 2671266 267253D 2671294" 2671266A 267239 2671294A 2671267 267240' 2671294AB 2671269 2 67240A 2671295 2671270 2672408 2671295A 2671271 2672418 2671295AB 2671272 267241C 26712958 2671273 267241E 2671295C 2671274 267241F 2671295D 2671275 267241CC 2671296 2671.276 267242 2671296A 2671277 267242A 2671297A 2671278 267243 2671298 2671279 2672.43A 2671299 2671279A 2672438 2671300 P79 61 14 Sheet 2 of 15
ATTACHMENT C SYSTEM:.
STEAM GENERATOR FEEDWATER Piping Stress Analysis Calculation Number 267171 267171A 267172 267172AW 267173 267173A 267174A 267174 P79 61 15 Sheet 3 of 15
r ATTACHMENT C SYSTEM:
COMPONENT COOLING Piping Stress Analysis Calculation Number 2671.98A 267220 2671960 267207K 267955 267985 2671988 267220A 267196E 267207L 267956 267986 267198C 2672208 267196F 267207M 267957 267987 267205A 267220C
. 267196G 267207N 267958 267988 2672058 267625 267197 267207P 267959 267989 267205C 267626
- 267197A 267207R 267960 267990.*
267206A-2 267626A 2671978
- 2672078 267961 267991 267206A-l
. 267627 267197C 267214 267962 267992 267206A-3 267628 267196H 267214A 267963 267993 2672068-1 267630 2671970
- 2672148 267964 267994 2672068-2 267631 267197E 267214C 267965 -
267995 2672068-3 267632 267197F 2672200 267966 267996 267206C 267633 267197G 267220E 267967 267997 267207A 267634 267197H 267237 267968 267998 2672078 267635 267197J 267238 267969 267999 267216 267636 267205C-l 267637 267970 2671000 267216A 267642 267205C-2
. 267639 267971 2671101 2672168 2671105 267205CA 267639A 267972 2671101A 267216C 2671107
- 267205CB "267640
. 267973.
2671102 2672160" 2671108
- 2672050
. 267643 267974 26711"03 267216E 2671109 267.205E 267645 267975 2671104 267216F 2671110 267205EA 26764.6 267976 267216G 267631A 267205E8 267647 267977 267216J 267190CA 267205EC 267648 267978 267216K 267190CP 267205F 267649 267979.
267216L 267196 267207C 267950 267979A 267216M 267196A 2672070 267951 267980 267216N 267196C 267207F 267952 267981 267216P 267196CA 267207G 267953 267982 267216Q 267196C8 267207H 267954 267983 267216R 267207J 267984 P79 61 16 Sheet 4 of 15
e ATTACHMENT C SYSTEM:
SERVICE WATER Piping Stress Analysis Calculation Number 267701 267721 267730.
267748G 267764 267792A 267702
. 267722 267730A 2677508 267765 267793 267703 267723 267731 267750EA 267766 267759 267704 267724 267731A 267750G
- 267767 267759A 267705 267725 267732 267750H 267768 267760
. 267706 267738.
267732A 267750J 267769 267761 267707
.267738A 267733
. 267750K 267770 267761A 267708 2677388 267733A 267750L 26-7771 267762 267709 267738C 267734 267750M 267772 267762A 267710 267739 267734A 267747 267773 267794A 267711
. 267739A 267735 267748A 267774 2677948 267712.
2677398 267736 267749 267775 2677940 267712A 267740 267737 267749A 267776 2677940A 267712AA 267741 267737A 2677338 267777 26779400 267712A8 267742 2677478 267733C 267778 267795A 2677128
.267743 267747C 267733D 267779 2677958 267712C 267744 2677470 267751 267780 2677.96 267712D 267745 267747E 267752 267780A 267798 267712E 267744A 2677488 267753 267781 267794CC
. 267712F
'*, 267746 267748C
. 267754 267781A 267794F 267712G
- 267747A 267748CA 267755 267781 **
267794G j
267713A 267747AA 267748CB 267756 267781A 267794H 267714 267791 267748.E 267757 267782 267714A 267727 267748F 267758 267782A 2677148 267727A 2677498 267763 267783 267715 267728 267749C 267791A 267784 267716 267728A 267749D 267792 267785 267717 267729 267749E 267786
- 267718 267729A 267726 267787 267719 2677298 267726A 267790 267720 P79 69 55 Sheet 5 of 5
r -
ATTACHMENT C SYSTEM:
AUXILIARY FEEDWATER Piping Stress Analysis Calculation Number 267271 267271A 267271CC 2672718*
26727188 267271C 267271CA 267271D 267271E 267271F 267272AA 26727288 267272£ 2672738 26727388 267273C 267273D 267273£ 267275 267275A 267276 267276A 267278 267278A 2672788 267281 267284 267285 267285A 2672858 267272 267272A 267273 267273A 267273AA 267274 267274A 267274C 267274D*
267274£*
267274F*
267274G*
267277D*
- Fully or partially buried pipe outside containment P79 69 61 Sheet 6 of 15
ATTACHMENT C SYSTEM:
CONTAINMENT SPRAY Piping Stress Analysis Calculation Number 267251A 2672518 267251C 267251CC 2672510 267251E 267251F 267252F 267252G 267290 267291 267291A 267293 267295 267295A P79 69 62 Sheet 7 of 15
Piping Stress Analysis Calculation Number 267130 267130A 267132A 2671328 267132C 267132M 267133A 2671338 267133C 267133D 2671700 2671701 2671703 2671704 2671710 2671713 2671419 2671420 2671421 2671422 2671423 P79 69 63 2671424 2671425 2671426 2671427 2671428 2671429 2671430 2671740 2671741 2671742 2671743 2671744 267°1745 2671746
. 2671747
. 267149 267149A 267150LL 267150 267150A 2671508 267150C 267150DD 2.67150EE 267150FF 267150GG 267150HH 267150JJ 267150KK ATTACHMENT C SYSTEM:
.* l Sheet 8 of 15
r -
ATTACHMENT C SYSTEM:
CHILLED ~ATER Piping Stress Analysis Calculation Number 2671500 2671501 2671502 2671503 2671505 2671506 2671507 2671508 2671509 2671510 2671512 2671513 2671514 2671515 2671516 2671517 2671518 2671524 2671519 2671520 2671521 2671522 2671523 2671525 P79 69 65 Sheet 9 of 15
ATTACHMENT C SYSTEM:
CHEMICAL AND VOLUME CONTROL Piping Stress Analysis Calculation Number 267224 267224 267224AA 267224AB 267227A 267227G 267229 267229A 2672298 267230D 267231D 267250AA 26725088 267250CC 267254 267255 267255Bb 267257 267257A 267258 267258A 267261A 267264 267264A 267264AA 267265 267269 2672698 267340 267340A 2673408 267343 2673438 P79 61 21 267357 267358 267359 2673608 2673618 267362 2673628 267375 267375A 267376 267377 267379 267380 267381 267476 2.67478 267479 267484 267488 267499 267500A 267654 267655 267656 267657 267659 267660 267661 267662A 267662 267663 267664 267665 267666 267667 267668 267670 267671 267673 267674 267676 2676768 267676A 267676C 267679 267680 267681 267682" 267683 267692 267694 267922 267922A 267923 267924 267925 267926 267927 267928 267946 267948A Sheet 10 of 15
ATTACHMENT C SYSTEM:
CONTROL AIR Piping Stress Analysis Calculation Number 2671551A 2671630 2671574 26715518 2671552 2671631 2671582 2671645 2671553 2671632 2671583 2671609 2671550 2671583A 2671610 2671551 26715838 2671627 2671599 2671583C 2671628 2671600 2671583D 2671628A 2671601 2671584 26716288 2671602 2671585 2671628C 2671603 2671586 2671633 2671604 2671560 2671634 2671605 2671561 2671587 2671606 2671562 2671588 2671606A 2671563 2671589 26716068 2671564 2671590 2671606C 2671565 2671591 2671606D 2671566 2671592 2671607 2671567 2671593 2671608 2671568
(
2671594 2671611 2671569 2671595 2671612 2671570 2671596 2671613 2671571 2671597 2671614 2671637 2671598 2671615 2671640 2671621 2671616 2671639 2671622 2671617 2671641 2671623 2671618 2671642.
2671624 26716:.9 2671643 2671625 2671620 2671643A 2671626 2671572 26716438 2671629 2671573 2671644 P79 61 24 Sheet 11 of 15
.*.e ATTACHMENT C SYSTEM:
DIESEL OIL AND STARTING AIR Piping Stress Analysis Calculation Number 2671402A
- 26714028 2671403A 26714038 2671403C 26714030 2671403E 2671403F 2671404A 26714048 2671405A 26714058 2671406 2671406A 26714068 2671406C 26714060 2671406E 2671406F 2671406G 2671406H 2671408 2671408A 2671408B 2671409 26714098 2671409DA 26714108 2671410C 2671410D P79 61 28 2671410E 2671410F Sheet 12 of 15
- r.
I ATTACHMENT C SYSTEM:
STEAM GENERATOR DRAINS AND.BLOWDOWN Piping Stress Analysis Calculation Number 2671431 2671432 2671433 2671433A 2671434 2671435 2671436 2671443 2671451 2671451A 26714518 2671451C 2671452 2671452A-2671452B 2611452C 2671453 P79 61 30 Sheet 13 of 15
ATTACHMENT C SYSTEM:
SPENT FUEL COOLING Piping Stress Analysis
- Calculation Number 267405 267414
.2674538 P79 61 31 Sheet 14 of 15 J
ATTACHMENT C SYSTEM:
RESIDUAL HEAT REMOVAL Piping Stress Analysis Calculation Number 267198 267201 267201A 267202 267203 267204 2672048 267204C 267204D 267204DD 267204E 267204F 267204G 267204H 267204J 267204K 2672041 267204M 267204N 267204P 2.67204Q 267240AA 26724088 267241
. 267241A 267241D 267244A 267247 267248A 2672488 P79 61 32 267248C 2672498 267251 267253 2672538 2671261 26712618 2671264 2671265 2671289A 2671290A 2671293A 2671295BC Sheet 15 of 15