ML20010C996
| ML20010C996 | |
| Person / Time | |
|---|---|
| Site: | Washington Public Power Supply System |
| Issue date: | 01/28/1981 |
| From: | Mazur D WASHINGTON PUBLIC POWER SUPPLY SYSTEM |
| To: | Engelken R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV) |
| References | |
| REF-PT21-81 10CFR-050.55E, 10CFR-50.55E, GO1-81-23, NUDOCS 8108210359 | |
| Download: ML20010C996 (1) | |
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' Washington Public Power Supply System A JOINT OPERATING AGENCY l
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fluclear Regulatory Commission January 28, 1981 Region V G01-81-23 l
Suite 202 Walnut. Creek Plaza kCJ l
1990 fl. California Boulevard A
I Walnut Creek, California 94596 p e
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Attention:
Mr. R. H. Engelken, Director N
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Subject:
WPPSS fluclear Projects flos.1 & 4 h'
Docket flos. 50-460 and 50-513 Reportable Condition 10CFR50.55(e)
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t Usage of Incorrect Vertical Amplified Respcnse Spectra for Component Cooling and Makeup Pump Area "HVAC" Sys+.em j
Train "B" Equipment
Reference:
1). Letter DL Renberger to RH Engelken, same I
subject G01-80-199 dated July 11, 1980.
2). Letter UE&C to Director - Office of In-spection and Enforcement, subject 10CFR21 Report of Defect Related to WPPSS Units WilP-1 and WNP-4, dated August 8, 1980
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Dear Mr. Engelken:
In reference 1) the Supply System informed your office of a reportable condition under 10CFR50.55(e).
In referenu 2) tFe Supply System submitted the WPPSS Interim Report on the subject co1dition.
UE&C in reference 2) subsequently determined that the deficiency was reportable by them under 10CFR21.
A copy of the UE&C report is attached for your information.
As the UE&C report on the subject condition has been filed under 10CFR21 and identifies the corrective action, no further report by the Supply System is required.
If you have any questions or desire further information, please adyise.
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Very truly yours, j
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cc: CR Bryant, Bonneville Power Administration JR Lewis, Bonneville Power Administration d'/ sy g us V. Stello, Director, flRC Office of Inspection and Enforcement V. Mani, United Engineers & Constructors, Phil.
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8108210359 810128
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Post Ottaco Box D223 R. II. LEONARD Pn i..d o lp h e s. PA 19101 W.P.P.S.S.
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w CERTIFIED : TAIL August 8, 1980 Director Office of Inspection and Enforcement U. S. Nuclear Regulatory Coranission Washington, D. C.
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Centlemen:
Subject:
10CFR21 Report of Defect 'Related to Washington Public Power Supply System Units WNP-1 and WNP-4 This report is submitted to provide details of a defect re-ported to you by telecopier on August 5. 1980.
A planned audit on the use of acplified response spectra for equipment and structural design was conducted on the subject WPP5$ projects.
A discrepancy Vds found in the response spectra which had been released to a manufacturer for use in design of'certain llVAC equipment.
Since the equipnent involved has been fabricated and delivered, corrective action will be to sufficien'.ly stif fen the concrete floor slab on which the equipment is nounted to conform to the originally specified value of the response spectra.
The use of incorrect amplified response spectra is a defect similar to ones previously reported and continues to be under investiga-tion by both the Seabrook and WPPSS projects.
This particular def ect i
with respect to ilVAC equipment mountf rg on a removable concrete slab is unique to the WPPSS project.
Details as required by 10CFR21, paragraph 21.21(b) (3) are contained in the attached report.
This defect has been previously reported by the licensee in accordance with 10CFR50.55(e) on June 6, 1980 and July 7, 1980.
Very truly yours g'
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Regional Director
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August 8, 1980
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l Director Office of Inspection and Enforcement j
U. S. Nuclear Regulatory Commission Washingtor., D. C.
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Gentlemen:
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Subject:
10CFR21 Report of Defect i
Related to Washington Public Power Supply System 1
Units WNP-1 and WNP-4 j
j This report is submitted to provide detcils of a defect reported to you by telecopier on August 5, 1980. A planned audit on the use of amplified j
response spectra for equipment and structural design was conducted on the j
subject WPPSS projects. A discrepancy was found in the response spectra which l
had been released to a manufacturel for use in design of certain HVAC equipment.
Since the equipment irivolved has been fabricated and delivered, corrective action will De to sufficiently stiffen the concrete floor slab on which the equipment is mounted to conform to toe originally specified value of a
the response spectra.
The use of incorrect amplified response spectra is a defect similar i
to ones previously reported and continues to oe under investigation by both I
the Seabrook and WPPSS projects.
This particular defect with respect to HVAC equipment mounting on a removable concrete slab is unique to the WPPSS project.
Details a, required by 10CFR21, paragraph 21.21(b)(3) are contained in the attached report.
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This cefect has bean previously reported by the licensee in accordance with 10CFR50.55(e) on June 6, 1980 and July 7, 1980.
Very truly yours, G. E. Sarsten Vice President GES/RH1.:p; Attachment CC W/ Attachment to:
Regional Director U. S. Nuclear Regulatory Commission Region V, Suite 202 Walnut Creek Plaza, 1990 Nnrth California 81vd.
Walnut Creek, California 94596 l
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NAME AND ADDRESS OF THE INDIVIDUAL OR INDIVIDUALS INFORMING THE COMMISSION.
l G. E. Sarsten. Vice President-Power United Engineers & Constructors Inc.
l 30 South 17th Street Philndelphia, Pa.
19101 l
- IDENTIFICATION OF THE FACILITY, THE ACTIVITY, OR THE BASIC COMPONENT SUPPLIED FOR SUCH FACILITY OR SUCH ACTIVITY WITHIN THE UNITED STATES WHICH FAILS TO l
CCMPLY OR CONTAINS A DEFECT.
Washington Public Power Supply System (WPPSS), Units WNP-1 & WNP-4; the design and fabrication of the Atmospheric Clean-Up Trains, Tag Numoers HCA-ACT-18 and 28, and the Fan, Tag Number ACT-FAN-29.
IDENTIFICATION OF THE FIRM CONSTRUCTING THE FACILITY OR SUPPLYING THE 8ASIC COMFONENT WHICH FAILS TO COMPLV OR CONTAINS A DEFECT.
Buf falo Forge Company, 490 Broadway, Buffalo, N.Y.14204, is the firm that fabricated and supplied the fan. Mine Safety Appliances, Route 2, Evans City, Pa.16033 is the firm that fabricated and furnished the Atmospheric C1can-Up Trains.
The fan is located in a fan house designed by United Engineers & Constructors Inc., and will be constructed oy University Mechanical Services, P.O. Box 700, Richland,'
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Washington 99352.
One of the design input parameters, the Amplified l
Response Spectra ( ARS) for the design of the above basic components is generated by United Engineers & Constructors Inc., 30 South 17th Street, Philadelphia, Pa. 19101.
NATURE OF THE DEFECT OR FAILURE TO COMPLY AND THE SAFETY HAZARD WHICH IS CREATED OR COULD BE CREATED BY SUCH DEFECT OR FAILURE TO COMPLY.
The defect identified is the use of incorrect Amplified Response Spectra ( ARS) for the design of the subject Atmospheric Clean-Up Trains, the Fan and the Fan Housing.
This deviation, if uncorrected, could result in the failure of the subject equipment to perform the intended safety function during and after an Operating Basis Eartnquake (08E) ano Safe Snutoown Eartnquake (SSE) event.
THE DATE ON WHICH THE INFORMATION OF SUCH DEFECT OR FAILURE TO COMPLY WAS OBTAINED.
August 4, 1980.
IN THE CASE OF A BASIC 'OMPONENT WHICH CONTAINS A DEFECT OR FAILS TO COMLf, THE NU4SER AND LOCATION OF ALL SUCH COMPONENTS IN USE AT, SUPPLIED FOR, OR BEING SUPPLIED FOR ONE OR MORE FACILITIES OR ACTIVITIES SU6]ECT TO THE REGULATIONS IN THIS PART.
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e Part 1: The specific defect identified relative to the subject components pertains to the input parameter for the ARS for a unique location in the Plant.
As such, the defect is not i
generic in nature to sucn components (namely, Atmospheric Clean-Up Trains and Faos) which are used in the Plant in both l
the safety-related and non-safety-related functions in various locations within the subject Jnits WNP-1 and WNP-4.
i Part 2: The ARS input which is the identified defact in this case, l
however, is furnished as a design input parameter to various L
safety-related systems, structures and components in the Plant l
with specific relevarce to the individual locations.
In this respect, the identified defect pertains to the " generation and use of ARS", which is a " basic component" in use at other areas of the plant systems, structures and components on WNP-1 and WNP-4, as well as, on Seabrook.
THE CORRECTIVE ACTION WHICH HAS BEEN, IS BEING, OR WILL BE TAKEN:
THE NAME OF THE INDIVIDUAL OR ORGANIZATION RESPCNSIBLE FOR THE ACTION: AND THE LENGTH OF TIME HAS BEEN OR WILL 3E TAKEN TO COMPLETE THE ACTION.
Corrective Act.'on: The corrective action is in three (3) parts:
Part 1: Specific corrective action with respect to the subject eouipment: The removable concrete slab on which the subject components are located has been stiffened to the extent that the resulting ARS is equal to or less than the Design ARS which has been used by the equipment manufacturer.
Part 2: Generic corrective action: Follow-up evaluation and verification of the ARS values which have been used in the initial design of equipment which have been released for fabrication and delivery to the WNP-1 and WNP-4 Site has been in progress on the basis of a continuous audit program commenced late in 1977 and is expected to be complete by September, 1981.
l Part 3: On-Going Design Verification Prooram for Plant Structures, Systems and Components:
Due to the nature of tne w rification program, the program cannot be concluded without the final as-built plant data.
The program which is currently in progress would systematically identify the input ARS design l
parameters that have been used in tne design for all i
safety-related systems, structures and components such that, snould a defect be uncovered as result of the program,
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corrective actions can be simultaneously initiated.
The corrective actions, in general, would consist of stiffening of I~
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a ' floor, a column, or a beam, or. reanalysis to examine design margins, or relocation of components as necessary.
At the conclusion of the program, which is currently forecasted to be on 6/1/83, the " delivered design" would contain a controlled i
volume of the Amplified Response Spectra (ARS) that matches the as-built plant conditions (as-ouilt systems, structures, and components).
Name of the Oroanization Responsible for the Corrective Action:
i Project Engineering - WPPSS Project 3
United Engineers & Constructors Inc.
30 South 17th Street Pniladelphia, Pa.
19101 J
The Lenctn of Time that will be Taken to Complete the Action:
Part 1:
Verification that the correct ARS has been specified in the initial design of equipment is estimated to be complete by Septemoer 1, 1981.
Part 2: Verification that the as-built condition of plant systems, structures and components is compatible with the ARS usec is.
j expected to conclude by 6/1/83.
ANY ADVICE RELATED TO THE DEFECT OR FAILURE TO COMPLY ABOUT THE FACILITY, ACTIVITY, OR BASIC COMPONENT THAT HAS BEEN, IS BEING, OR WILL BE GIVEN TO PURCHASERS OR LICENSEES.
Report of the subject defect was made to the Licensee (Washington Public Power Supply System) in the following sequences:
On May 20, 1980, WPPSS was verbally notified.
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On June 6,1980, WPPSS was notified in writing by j
letter UEWP-80-585.
On July 7,1980, WPPSS was given a follow-up repctt oy UE&C letter UEWP-80-657.
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It is believed that this defect has been notified to the NRC unoer the i
rules and requirements of 10CFR Part 50.55 (E).
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THI3 LETTER h-3..1FIES COMMITMENT NO. one
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.,,pss CORRESPONDENCE NO.' 90I-EO-l99 I! Hanser Site QA Files 1/?
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'A ten-icn:
Mr. R. H. Engelken, Director
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Subject:
WPPSS "uciear Projects.Nos. 1/?
l Docket Nos. 50-460 and 50.O
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Reportable Ccndition 10C.- N.
,(e) 1 Usage of Incorrect Verti i; Amp.i.ied Response Spectra for Comp ne. '.c Jing l
and Makeup Pump Area "HVAC "
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Train "B" M icrent 4
Dear Mr. Engelken:
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...,. Regi n..csident.nspector, was verbally not1Tiec t
i of this m ort i condit.sn on June 11, 1980 by the Supply System.
j A- ;:" an. A :o e 4-s etter contains the WPPSS ir.*.erim report or, the
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Very truly yours,
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[ 0. L. Renberger Assistant Director-Technology
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ATTACHMENT A 2/*,
Docket Mos. 50 460 and 50-513 4
?.e crtable Condition 100FP.5C.55(e)
Usage of Incorrect Vertical Am:lified
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area "HVAC" system train "B" equi;.ent. As a resul: of a project audit; the' usage of an incorrect /ertical response spectra for the train "B" HCA f
System equipment was discovered.
Descriction of the Deficiency The Component Cooling and Makeue Pump Area is in the GSB between tolumn lines 1-4 end U-J at elevation 399'-0" and 421'-0".
The major safety related ecui: ment located in this area are Makeup Pumos (MUS-FMP-1A, 2S & 3C) anc Shutdcwn Cooling Water Pumps (NSW-FM?-1A and 25).
The Ccmecnent Cocling and Makeup Pump Area HVAC System (HCA) provides heating, cooling, ventilation, humidity control and atmos;neric clea^uo to this area.
The H A System is safety re'ated and consists of r : redun? ant trains of equipment located in the GSE at elevation 455'-0" between Col. Line 14 and 3"
As a resul t of a pro.'ec: audit, the acplica.icn of an incorrec: verticai 1
respcase scectra for the train "B" HCA System equipment (HCA-FAN-23 and r.r.n 4e.i.1o a 28) was discovere..
t he suoject equipment is locatc. on a
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Safety Inclications The HCA system is required to maintain the temperat'gre in the Component Cooling and n.,akeup Pump n,rea witn..in a gaximum or to r during normal plant
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conditions and within a maximum of 130 F following LOOP concurrent with SSE or LOCA concurrent with LOOP and SSE.
The above temperatures are maintained by operating either HCA system train "A" equipment or train "B" equiptent.
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For tnis quali#ication curpose, the maximum tempera;ure r,";-d day is 130"F (for hours) and the 29 days average temperature is 117'F in 2
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ene motor wigcing tercera ture. As a rule of thumb, operating these motors.vith every 10 C higher than caximum desicn temperature cculd recuce the life of the motor i nt.. a ti:n to ca. r.
ncwever, cperatinc these motors a: /=ry hicn ter.: era-tures cou,id result in insulation raliure.
Tne final steady state temperature inside the Component Cooling and Makeup Fum: Area is relatively hich cor. pared to the temperature for wnich the
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be significantly recucec and the motor windings cculd fail af ter a short period of time.
This would result in loss of the nakeup and/or heat removal with respect to the reactor coolant system, restiting in an inability to cool down the plant and/or to maintain the plant in a safe shut dovn con-citicn.
Corrective Action
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