ML20070T134
| ML20070T134 | |
| Person / Time | |
|---|---|
| Site: | Seabrook  |
| Issue date: | 02/03/1983 |
| From: | Devincentis J PUBLIC SERVICE CO. OF NEW HAMPSHIRE, YANKEE ATOMIC ELECTRIC CO. |
| To: | Knighton G Office of Nuclear Reactor Regulation |
| References | |
| SPN-458, NUDOCS 8302080215 | |
| Download: ML20070T134 (5) | |
Text
.
f PENHI fr 167. Worcases. Road Public Service of New Hampshire M"*'"
- d" 01701 (617) - 872-8100 February 3, 1983 SBN-458 T.F. B7.1.2 United States Nuclear Regulatory Commission Washington, D. C. 20555 Attention:
Mr. George W. Knighton, Chief Licensing Branch No. 3 Division of Licensing
References:
(a) Constructica Permits CPPR-135 and CPPR-136, Docket Nos. 50-443 and 50-444
Subject:
Open Item Response:
(SRP 3.9.2; Mechanical Engineering Branch)
Dear Sir:
In response to the open item regarding the preservice examination of snubbers, to ensure they are not seized, frozen, or jammed, we have revised FSAR Section 3.9(B).3.4 (FSAR Pages 3.9(B)-26b and 3.9(B)-26c) as delineated on the attached annotated FSAR pages to include the snubber examination.
The attached FSAR pages will be included in OL Application Amendment 49.
Very truly yours, YAhTEE ATOMIC ELECTRIC COMPANY W
J. DeVincentis Project Manager ALL/fsf cc: Atomic Safety and ' icensing Board Service List 8l 8302090215 930203 PDR ADOCK 03000443 A
PDR 1000 Elm St., P.O. Box 330, Manchester, NH 03105 Telephone (603) 669-4000. TWX 7102207595
ASLB SERVICE LIST Philip Ahrens, Esquire Assistant Attorney General Department of the Accorney General Augus ta, ME 04333 Representative Beverly I;ollingworth Coastal Chamber of Commerce 209 Winnacunnet Road Hampton, NH 03842 William S. Jordan, III, Esquire Harmon & Weiss 1725 I Street, N.W.
Suite 506 Washington, DC 20006 E. Tupper Kinder, Esquire Assistant Attorney General Office of the Attorney General 208 State House Annex Concord, Nil 03301 Robert A. Backus, Esquire 116 Lowell Street P.O. Box 516 Manchester, NH 03105 Edward J. McDermott, Esquire Sanders and McDermott Professional Association 408 Lafayette Road Hampton, NH 03842 Jo Ann Shotwell, Esquire Assistant Attorncy General Environmental Protection Bureau Department of the Attorney General One Ashburton Place, 19th Floor Boston, MA 02108 l
SB 1 & 2 Amendment 45 FSAR June 1982 (h) Hydraulic units shall be designed with a means for monitoring fluid levels in the reservoirs.
(i) Hydraulic fluid shall be CE SF 1154, a silicone based fluid with a flash point in excess of 500 F.
(j) Materials used for the fabrication of ASME Code parts shall conform to the applicable requirements of Article NF-2000 of the ASME B & PV Code.
(k) Fabrication of shock suppressors shall be in accordance with the applicable requirements of Article NF-4000 of the ASME 3 & PV Code.
(1)
One~ sample of each size and design of shock suppressors, both mechanical and hydraulic, shall be qualified to the requirements of Articles d, e, f and g above.
(m) Load ratings shall be verified in accordance with the requirements of Article NF-3260 of the ASME B & PV Code.
(n) Each hydraulic snubber shall be tested in compression and tension to 10% of its rated load and checked ior leakage of the hydraulic fluid.
If fluid forms droplets, r
drips or runs off the piston rod, the shock suppressor shall be rejected.
(o)
Shock suppressors' packaging shall be designed to protect against salt spray, rain, dust, watervapor, shock and vibration during shipping, handling shd storage. Where possible, shock suppressors shall be packaged fully assembled in a single shipping container.
2.
Snubber Installation and Operability Verification 46 (a)
Preservice Examination l
A pre-service examination will be made on all snubbers l
listed in Table 3.7-3 of Standard Technical Specification j
3/4. 7. 7. /This exam' ati wi b mad afte snu er-l insfall ion nd rin ha I esti g an wil as a m%_imu, ve ify ef low ~ng:7
'j (1) There are no visible signs of damage or impaired operability as a result of storage, handling, or installation.
(2) The snubber location, orientation, position setting, and configuration (attachments, extensions, etc.)
are according to design drawings and specifications.
(,
44 3.9(B)-26b i
L
SB 1 6 2 Amendment 45 l
FSAR June 1982 CD %vsar@
[ h % Adequate swing clearance is provided to ellow snubber movement.
(g) jai If applicable, fluid is to the recommended level and is not leaking from the snubber system.
(f) (,)i Structural connections such as pins, fasteners and other connecting hardware such as lock nuts, tabs, wire and cotter pins are installed correctly.
Prior to the performance of the thermal expansion test, an inspection of all listed snubbers covering items (1),
h)and(S) g%)/an/ (/7)will be performed as a test prerequisite.
o g sguo grs\\not\\exa ingd april \\g INask Ihill\\beW c mpNte( at\\thb the. Snubbers which are installed-incorrectly or otherwise fail to meet the above requirements will be repaired or replaced and re-examined in accordance with the above criteria.
(Note: Preservice inspection will include a complete review of the manufacturer's functional testing documentation).
(b) Pre-Operational Testing
/
l During thermal expansion testing, snubber thermal s.
movements for systems whose operating temperature exceeds 2500F will be verified as follows:
(1) During initial system heatup and cooldown, at specified temperature intervals for any system which attains operating temperature, verify the snubber expected thermal movement.
(2) For those systems which do not attain operating temperature, verify via observation and/or calculation that the snubber will accommodate the f
projected thermal movement.
l l
(3) Verify the snubber swing clearance at specified l
heatup and cooldown intervals. Any discrepancies or inconsistencies shall be evaluated for cause and corrected prior to proceeding to the next specified interval.
l l
l l
3.9(B)-26c 44
INSERT (A)
This examination will be conducted during and after snubber installation and will, as a minimum, verify the following:
INSERT (B)
Small snubbers are not seized, frozen, or jammed by manual exercising during installation. Large snubbers (those that can not be manually exercised) will be identified and examined for proper movement during preoperational testing as discussed in Subsection 3.9(B).3.4.d.2(b) below.
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