PY-CEI-NRR-0416, Suppls 851111 Update to Response to Item 5 of Action Plan for Resolving Addl Containment Issues in Sser 7,including Environ Analysis of Silicone Rubber Boot Seals, Used on Safety Relief Valve Drywell Wall Penetrations
| ML20138A929 | |
| Person / Time | |
|---|---|
| Site: | Perry  |
| Issue date: | 12/10/1985 |
| From: | Edelman M CLEVELAND ELECTRIC ILLUMINATING CO. |
| To: | Butler W Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML20138A932 | List: |
| References | |
| PY-CEI-NRR-0416, PY-CEI-NRR-416, NUDOCS 8512120155 | |
| Download: ML20138A929 (6) | |
Text
f THE CLEVELAND ELECTR P o. Box 5000 - CLEVELAND, OHlo 44101 - TELEPHONE (216) 622-9800 - lLLUMINATING BLOG.
- 55 PUBLICSQUARE Serving The Best Location in the Nation MURRAY R. EDELMAN VICE PRESIDENT NUC LE AR December 10, 1985 PY-CEI/NRR-0416 L Mr. W. D. Butler, Director BWR Project Directorate No. 4 Division of BWR Licensing U.S. Nuclear Regulatory Commission Washington, D.C. 20555 Perry !belear Power Plant Docket Nos. 50-440; 50-441 SSER-7 Confirmatory Issue (64)
Dear Mr. Butler:
In a letter dated November 11,1985 (PY-CEI/NRR-0390L), we provided an update to our response to item 5 of the Action Plan for Resolving Additional Containment Issues (Humphrey Issues). This letter provides additional information regarding the boot seals used on the safety relief valve (SRV) drywell wall penetrations.
In our November 11 letter, we described modifications made to the configuration of the SRV boot seals and stated that the installed configuration meets the requirements of the original specification for the boot seals. Attachment I contains the Design Requirements section of the specification for the boot seals. 'Ihis section specifies the requirements for radiation, temperature, pressure and loadings for the seals. is a copy of the analysis used to demonstrate the acceptability of the ceal material for the radiation and temperature environment required by the specification.
Should you have any questions regarding this information, please let me know.
Very truly yours, s
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Sv Murray R. Edelman
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Vice President Nuclear Group g
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MRE:j sd 0512120155 851210 PDR ADOCK 05000440 Attachments E
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ATTACHMENT 1 TO PY-CEI/NRR-0416 L
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- SRV Penetrations at Drywell(Cont'd) l Seal 3
- j,7 Pene'tration #
Size Ooening Pine Size System System IPRB1025 14" 10" B21 PP-B-SR IPRB1026 14" 10" B21 PP-B-SR 1PRB1027 14" 10" B21 PP-B-SR IPRB1028 14" 10"-
B21 PP-B-SR PP-B-SR = Piping Pressure - Booted - Safety Related 6:06 Design Requirements i
The design and testing-of the pressure seals and their attachment system shall consider and document compliance to the following conditions:
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1.
Connections:
a.
Piping system - B21:
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Pipe size:
10 inch diameter - Schedule 40 Pipe material: Stainless steel Normal conditions:
135oF and 14.7 psia with no flow Discharge conditions:
4770F' i
Discharge duration: 30 minutes (maximum) b.
Sleeve extension:
~
Size:
18 inch diameter - Schedule 40 i
Material:
304 SST 2.
Environmental conditions:
Temperature Humidity i
l Normal:
135oF 100%
Maximum:
3300F 100%'
-Minimum:
60oF 100%
3.
Radiation exposure:
Dose Contribution Dose (Rads)
..I 40 year normal gamma 2.8X107 40 year normal neutron 8.0X106 (assuming 8X10-9 Rads /n/cm2) 6-month LOCA gamma 9.7X107 J
6-month LOCA beta (protected) 2.4X101-i T
Total Integrated Dose
'l.6X108 1
4 VI-3 11-14-84 l
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4.
Deflections (include seismic, safety relief valve, all new
\\ av loads effects):
a.
Axial:
tl.25 inches b.
Lateral:
i0.75 inches n
5.
Pressure:
Normal pressure differential:
2.7 psi a.
b.
Design Basis Accident:
(1) Early in transient:
External Pressure Differential 30 psid (acting inward on seal boot)
(2) Later in transient:
Internal Pressure Differential 21 psid (acting outward on seal boot) 6.
Weir Swell Drag Load:
.7.3 psi on the projected area, applied vertically up 7.
Loading Combinations:
Normal - (Sa)+(4a)+(4b)+ Dead Weight a.
Il b.
Accident - Early - (5b(1))+(4a)+(4b)+ Dead Weight c.
Accident - Later - (5b(2))+(4a)+(4b)+(6)+ Dead Weight
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8.
Fatigue:
a.
Thermal cycles:
(1) Loading Combination.7a:
Pipe:
1350-4170 1800 full cycles Environme~ntal: 600-1350,
~680 full cycles (2) Loading Combinations 7b & 7c:
1 cycle i
Pipe:
1350-4770 Environmental: 1350-3300
~~
b.
Deflection cycles:
5450* full cycles:
1.25 inches axial to.75 inches lateral 7200 half cycles:
0 to +1.25 inches axial i
0 to +0.75 inches lateral l
- (50 are due to seismic) 9.
Life of Plant:
40 years 6:07 Materials 1.
The existing B21 system pipe is Schedule 40 stainless steel pipe 10 inches in diameter.
VI-4 11-14-84
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SP-98-4549-00 3-30-81 0
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2.
The new penetration sleeve extension, by Others, is stainless h
't steel.
3.
Seal boot material shall be BISCOSEAL certified as meeting the design requirements in Item 6:06.
4.
Clamps shall be stainless steel compatible with both the boot and sleeve / pipe and shall meet all design requirements in Item 6:06.- Note: Welding is not permitted for attachment to the piping.
5.
Adhesive shall be compatible with both the seal boot and sleeve / pipe and meet all design requirements in Item 6:06.
6.
Material certification shall be obtained by the CONTRACTOR as EERTIFIO copies of $ t'e'elal"Tiest Reports describing the JFI properties for each material used. Re u*rceous ec crxas*ed bC 3 -24 g't cc ueticsu G:.ADE cM & Cetrences-os-Gnee.euw :.-H 1:;v.ncu.
6:08 Testing and Acceptance 6 C7/7 Su. ECAJ 43d474-9S-ft-q l.
The test of the mockup seal defined in Item 6:02 subitem 5
- reif.3 shall be performed befeme final insteil:ti;; ef the-actual f4
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2.
The seal shall be tested using an internal pressure of 30 psig b
with pressure increments of 7.5 psig. Pressure gages will be supplied by the OWNER and be accurate to i 1%. The pressure shall be held for 15 minutes while leaks are being located
/
using an approved soap bubble solution applied to all seams and joints.
3.
The acceptance criteria for the test shall be the following:
a.
No permanent deformation of the seal after depressurization.
b.
No measurable leakage at 30 psi using an approved soap bubble solution applied to all seams and joints.
4.
In lieu of the mockup test, previous test results may be submitted to the ENGINEER for acceptance. These tests shall be representative of actual design conditions.
6:09 Submittals 1.
The CONTRACTOR shall submit all testing and final test reports for the nineteen (19) new seals and their materials.
2.
The CONTRACTOR shall submit installation procedures and sketches for installing new seals.
3.
The CONTRACTOR shall submit required Inspection and Maintenance Procedures for the seals.
4.
The CONTRACTOR shall submit documentation to verify that the material and completed work conform to this Specification in
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accordance with the requirements of Specificaton SP-709-4549-00.
VI-5 11-14-84 e
l ATIACHMENT 2 TO PY-CEI/NRR-0416 L
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