ML20236C162
| ML20236C162 | |
| Person / Time | |
|---|---|
| Site: | 07109183 |
| Issue date: | 10/23/1987 |
| From: | Macdonald C NRC OFFICE OF NUCLEAR MATERIAL SAFETY & SAFEGUARDS (NMSS) |
| To: | |
| Shared Package | |
| ML20236C135 | List: |
| References | |
| NUDOCS 8710270039 | |
| Download: ML20236C162 (4) | |
Text
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CERTIFICATE OF COMPLIANCE FOR RADIOACTIVE MATERIALS PACKACES' IloiCERTIF UM8EA b.REV SloN NUMBER c.? AC G D TFC 1 N MBER d.F AGE UMBEA
- 3. TOTAL VM85A K GES 2.eneAuste
- 8. This certificate is issued to certify that the packaging and contenis described in item 5 below, meets the apphcable safety standards set forth in Title 10. Code L
of Federal Regulations. Part 71," Packaging and Transportation of Radioactive Material?
D. This certihcate does not reheve the consignor from comphance with any requirement of the regulations of the U.S. Department of Transportation or other I
appucable regulatory agenem. including the govemment of any country through or into which the package will be transported.
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' Nuclear Assurance Corporation Nuclear Assurance Corporation application dated I
h ET20 Peachtree Parkway June 30, 1984, as supplemented f Morcross, GA 30091 h
71-9183 e.oocxerNuMeen l 4coNo TioNs This certificate is conditional upon fulfithng the requirements of 10 CFR Part 71, as applicable, and the conditions specified below, 5
(a)
Packaging (1) Model No.:
NAC-1 (2)
Description A steel and lead shielded shipping cask.
The cask is a right circular cylinder with upper and lower steel encased balsa impact limiters.
The overall dimensions are 214 inches in length and 50 inches in diameter.
The gross weight of the cask is approximately 49,000 pounds.
The inner cavity is 178 inches long and 13.5 inches in diameter. The thickness of the inner shell is 5/16 inch and 1-1/4 inches for the outer shell.
The two stainless steel shells are welded to a 2-ioch thick stainless steel shiele disc at the bottom.
The annulus between the inner and outer shells is filleo with lead (max. lead thickness 6-5/8 inches, minimum 5 s
inches).
The lid is stainless steel frustum of cone 7.5 inches thick.
The lid.is I
secured to the cavity flange by six, ASTM-A320, Grade L43,1-1/4-inch diameter bolts.
The seal is provided by two polytetrafluoroethylene 0-rings.
Four trunnions, two located on either side of the upper or lower impact limiter, are provided.
Other cask features include two drain valves located in the bottom shield disc, vent valve, head closure gasket leak check valve, and rupture disc - pressure relief valve system located in the cavity flange.
For transport, the cask may be enclosed in an expanded metal cage.
(3)
Drawings The Model No. NAC-1 shipping cask is constructed in accordance with l
Nuclear Fuel Services, Inc., Drawing No. E 10080, Sheets 1 through 4, Pev. 22.
Y l00Q 07:o9103 871023 c
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ElE Page 2 - Certificate No. 9183 - Revision No. 6 - Docket No. 71-9183 g
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5.
(b)
Contents (1)
Type and form of material E
i (1)
Clad, irradiated metallic natural uranium fuel rods.
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R (ii) Solid nonfissile irradiated hardware.
l (2) Maximum quantity of material per package l
W The cavity content must not exceed a thermal decay heat load of 750 9
watts and a weight of 3,700 lbs? including weight of component spacers f {
(or fuel basket) use'dLin the cask cavity.to limit movement of contents during shipment.
Fuel rods are additionally limited as follows:
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(i) 21 intact rods or 10 encapsulated (defective) rods p
(ii) 1,600 MWD /MTU average burn-up 6
j (iii) cooled for at least 365 cays after irradiation E
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(c)
Fissile Class I
6.
The cask cavity must be dry (no free water) when delivered to a carrier for g
transport.
e 7.
As needed, appropriate component spacers (fuel basket and axial spacers for shipment of fuel rods) must be used in the cask cavity to limit movement of g
contents during accident conditions of transport.
8.
The neutron shield tanks must be drained and maintained in a dry conditicn in E
accordance with Section 7 of the application, as supplemented.
i 9.
,In lieu of the requirements of 10 CFR 971.87(e), the licensee must perform
' periodic maintenance and testing of 0-rings, drain and vent ball valves, relief p
valves, and rupture discs of the cask as indicated in the table given below.
y During inactive periods, the maintenance and testing frequency may be disregarded F
provided that the package is brought into full compliance prior to the next use of i
the package.
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CONolTIONS (continued)
Page 3 - Certificate No. 9183 - Revision No. 6 - Docket No. 71-9183 Cask Component.
P"iod Test / Action Bull Valve Each shipment Hydro test to 30 psig*t Ball Valve Anrually Replace seats and seals l
l 0-rings Each shipment Te:t to 30 psig*
0-rings Annually Test to 100 psig*
Inner Con'tainment Vessel Annually Test to 100 psig*
Cavity Relief Valve Annually Test at-set point t
_:n Cavity Rupture Disc Annually F.eplace Neutron Shield Tank Rupture Disc Annually Replace Impact Limiters Annually Test to 5 psig*
- There must be no visual (pressure gauge). indications of pressure drop for the' component under test during a 10-minute test period.
Otherwise, corrective action must be taken and the test repeated until such time as the component meets the specified tests.
(Test to pressures equal to or greater than those indicated.)
10.
The package authorized by this certificate'is.hereby approved for use under the general license provisions of 10 CFR 671.12.
11.
Ex.piration date:
September 30, 1989.
s REFERENCES Nuclear Assurance Corporation application dated June 30, 1984.
Supplements dated:
September 10, 1984; July 24, 1986; and Februery 10, and September 30.
1987.
FOR THE U.S. NUCLEAR REGULATORY COMMISSION
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Charles E. MacDonald, Chief Transportation Branch Division of Safeguards and Transportation, NMSS OCT 2 31987 Date:
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55N'].h.':.E-NUCLEAR REGULATORY COMMISSION WASHINGT0ft D, C,20555 s
g +,w...f Transportation Branch Ap]roval Record ModeTMo. NAC-1 Package Revision No. 6.
By application dated September 30, 1987, NuclearAssuranceCorporation(NAC) requested a revision to the Model No. NAC-1 package to incorporate a handle to the manually operated valve used in the vent, drain and 0-ring pressure test ports, and to permit the use of an alternate configuration of the cask closure lid having a 3/8-inch chamfer on its lower outside edge.
Adding a handle to each of the valves will help insure the valves are closed 1
when the port covers are installed.
The handle will be of the proper length to just close the valve when the port cover is secured.
Adding a 3/8-inch chamfer to the lower outside edge of the cask closure lid will have no effect on the ability of the cask to meet the requirements'of.10 l.
CFR Part 71.
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The above changes will not affect the ability of the cask to meet the requirements of 10 CFR Part 71.
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Charles E. MacDonald, Chief Transportation Branch Division of Safeguards and l
Transportation, NMSS l
Date:
OCT 2 31987 l
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