ML19248D689
| ML19248D689 | |
| Person / Time | |
|---|---|
| Site: | 07109130 |
| Issue date: | 07/31/1979 |
| From: | Mcdonald C NRC OFFICE OF NUCLEAR MATERIAL SAFETY & SAFEGUARDS (NMSS) |
| To: | Simchuk J NUCLEAR PACKAGING, INC. |
| References | |
| NUDOCS 7908170174 | |
| Download: ML19248D689 (3) | |
Text
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NUCLEAR REGULATORY COMMISSION C
W ASHING TON, D. C. 20555 5,, gpf,,
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JUL 3113/9 l
t FCTR: RHO 71-9130 Nuclear Packaging, Inc.
ATTN: itr. John D. Simchuk 1733 South Fawcett Tacoma, WM 98402 Gentlemen:
This refers to your applicaticn dated August 11, 1978, as amended, requesting approval to deliver the '1odel No. NP-50-xxL packaging to a carrier for transport.
In connection with our review, we need the information identified in the enclosure to this letter.
Please advise us within thirty (30) days from the date of this letter when this information will be provided. The additional ir. formation requested by this letter should be submitted in the form of revisec pages to the original Safety Analysis Report in order to preserve the continuity of your application.
If you have any questions regarding this matter, we will be pleased to meet with you and your staff.
Sincerely, Lhdrles E. MaCOonald, Chief Transportation Certification Branch Division of Fuel Cycle and Material Safety, NilSS
Enclosure:
As stated t
7908170d4,
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JUL 1'yg Nuclear Packaging. Inc.
Model No. NP-50-uL P3cka_gM Package Descriotion 1.
Dimensions of primary and secondary lids should be given in Drawing No. X-20-2000.
The adjacent cask ; hell section should be shcwn in the detail drawing of Section D-D.
Provide revision number to all revised drawings (presently this was not done).
2.
Material specifications for the shell carbon steel, lid and welds should be given.
Tie-Ccwns The cat stress evaluation (page 1-12b) should access the combined effect of multi-axial strain caused by both horizontat and vertical tie-down load components.
The analysis should also consider the material strength properties at reduced temperatures.
General Packaging Standards and Tvoe B Packages 1.
Discuss the solidificatica of the resin process and access that there will be no significant chemiel, galvanic, or other reaction among the nackaging and the packagins contents.
2.
Provide the information required. y 10 CFP, 571.32 concerning load resistance and external pressure.
Free-Croo (2-3 foot) 1.
Corner / side impact - shcw that the effectiveness of the seal area will not be reduced by a corner / side impact.
2.
End/ oblique imcact - shcw that the containment shell and plates will not yield under end/cblique impact.
3.
Justify use o# 3s = 45 ksi in the crush (g-lcad) analysis.
In the lid cicsure binder stress analysis (cf. free body diagram in pages 1-23) justify that (i) the total form at the impacted area is equal to and colinear witn the container shell reaction force F c, (ii) neglect of t
resultant binder bending mcmert component at the cask shell/ lid interface, (iii) use of ultimate strengt'1 in tne binder stress evaluation under the normal transport drop impact condition, (iv) apprcpriateness of neglecting possible dynamic stress amplification effects, and (v) neglect of pre-load ef fects in the binders.
jV g
-2 4.
Provide justification for the design of all weldments on the basis of ultimate strength value.
5.
Show that the containment system is adequately designed against fracture under impact leading at low temperature conditions.
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