ML20101C807
| ML20101C807 | |
| Person / Time | |
|---|---|
| Site: | Wolf Creek  |
| Issue date: | 12/18/1984 |
| From: | Petrick N STANDARDIZED NUCLEAR UNIT POWER PLANT SYSTEM |
| To: | Harold Denton Office of Nuclear Reactor Regulation |
| References | |
| SLNRC-84-132, NUDOCS 8412210203 | |
| Download: ML20101C807 (3) | |
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SNUPPS Stenderdised Nuclear Unit es e no :sv.i 5 Choke Cherry Road Nicholas A. Petrick v
20050 Executive Director December 18, 1984 SLNRC 84-132 FILE: 0541 SUBJ: FSAR Changes Mr. Harold R. Denton Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission Washington, D.C. 20555 Docket No. STN 50-482
Dear Mr. Denton:
Kansas Gas and Electric plans to issue Revision 17 to the SNUPPS standard FSAR (with changes applicable to Wolf Creek only) on December 28, 1984.
As discussed with tne Project Manager, the revision will be limited in scope to changes which fit into one of the following categories: 1) the formal incorporation of changes previously identified to the Staff; or
- 2) minor corrections and updates to reflect the as-built design. All identified changes in the second category have been reviewed internally and three were judged potentially not minor. This letter identifies these three changes for your consideration in advance of Revision 17.
Due to the construction of the Wolf Creek filter absorber units the down-stream side of the second HEPA filter is inaccessible for air flow dis-tribution testing per ANSI N510-1980, Section 8.1 and 8.3.2.1.
This condition is judged acceptable for Wolf Creek based on successful air flow distribution testing downstream of the first HEPA filter and veri-fication/ inspection of the charcoal bed and second HEPA filter installa-lations. The following sentence will be added to SNUPPS position 5b in Tables 9.4-2 (Sheet 14) and 9.4-3 (Sheet 9):
"However, air flow distribution testing will be performed only on the downstream side of the first HEPA filters in lieu of each filter as stated in Section 8.1 of ANSI N510-1980."
Kansas Gas and Electric has decided to perform the Liquid Radwaste System Preoperational Test (S-04HB01) in accordance with the abstract in the Standard FSAR as was done at Callaway. The existing reference to the Wolf Creek Site Addendum from Standard FSAR Section 14.2.12.2.6 will be deleted.
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SLNRC 84-132 Page Two The FSAR commitment regarding accessibility of Class 1 valve pressure boundaries for visual examination is being revised to be consistent with the requirements of the ASME Code,Section XI as shown in the attached markup of p. 5.2-27.
Very truly yours, fN4w Q Nicholas A. Petrick SLA(NP)dck/2a19 Attachment cc:
G. L. Koester KGE J. M. Evans KCPL D. F. Schnell UE J. Neisler/B.Little USNRC/ CAL H. Bundy USNRC/WC W. L. Forney USNRC/RIII D. R. Hunter USNRC/RIV 1
. s SNUPPS 5.2.4.2.5 Piping Pressure Boundary The physical arrangement of piping, pumps, and valves has been designed to allow personnel access to welds requiring inservice inspection.
Modifications to the initial plant design have been incorporated where practical to provide proper inspection access.
Removable insulation has been provided where required by the Code on those piping systems requiring ultrasonic and/or surface examinations.
In addi-tion, the placement of pipe hangers and supports with respect to these welds has been reviewed and modified where necessary to reduce the amount of plant support required in these areas during inspection.
Working platforms are provided in areas required to facilitate the servicing of pumps and valves.
Temporary or permanent platforms and ladders will be provided, as necessary, to gain access to piping welds.
A conscientious effort has been made to minimize the number of fitting-to-fitting welds within the inspection boundary.
Welds requir-ing inspection have been located to permit ultrasonic examina-tions from at least one side, but, where component geometries permit, access from both sides of the weld is provided.
The surfaces of the welds requiring ultransonic examination by the Code have been prepared to permit effective examination.
Vertical runs of piping are provided with removable insulation or catch basins at the low point for leakage surveillance during system hydrostatic and pressure testing.
l 5.2.4.2.6 Pump Pressure Boundaries The internal pressure-retaining surfaces of the pumps are accessible for visual inspection by removing the pump inter-nals.
External surfaces of the pump casing are accessible i
for visual and volumetric examination by removing component insulation.
Examination will be performed when the pumps are disassembled for maintenance purposes.
5.2.4.2.7 Valve Pressure Boundaries Class 1 valves over ti nch nominal. size are accessible for i
i disassembly for visual examination"of internal pressure boundary surfaces.
External surfaces of the valve bodies are disassembled for maintenance purposes.
I 5.2.4.3 Examination Techniques and Procedures l
Techniques and procedures, including any special technique and l
procedure for visual, surface, and volumetric examinations, will l
be written in accordance with the requirements of Subarticle IWA-2200 and Table IWB-2500-1 of Section XI of the ASME Code, applicable year and addenda.
The liquid penetrant or magnetic particle methods will be utilized for surface examinations, l
t 5.2-27 i
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