ML20198D541
| ML20198D541 | |
| Person / Time | |
|---|---|
| Site: | 07109244 |
| Issue date: | 05/19/1992 |
| From: | Osgood N NRC OFFICE OF NUCLEAR MATERIAL SAFETY & SAFEGUARDS (NMSS) |
| To: | NRC OFFICE OF NUCLEAR MATERIAL SAFETY & SAFEGUARDS (NMSS) |
| References | |
| NUDOCS 9205210066 | |
| Download: ML20198D541 (2) | |
Text
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I 1,
MAY 1 u 1992 o
SGTB:NLO 71-9244 MEMORANDUM FOR:
The Files FROM:
Nancy L. Osgood, SGTB, SGTR, NMSS
SUBJECT:
MEETING
SUMMARY
REGARDING TRANSPORT OF MILLSTONE 2 STEAM GENERATORS hit.tadf21 lE IN
[ hem-Nuclear Ross Chappell Bill Allen Bob Anderson Henry Lee Raj Harnal Mirza Baig Nancy Osgood holf Koste Iqbal Husain Steva Ruffin Robert Lefebvre Hal Young Hechtel Alice Cummings latroduction A meeting was held on April 16, 1992, in Rockville, Maryland, at the request of Northeast Utilities (NU). NU has submitted an application for certification of the Millstone 2 steam generators as radioactive material transport packages.
The meeting was held to discuss the tie-down system to be used during the transport of the steam generators.
Discussion 1.
Tie-down system description. NU has revised the tie-down system for the package.
There are no tie-down points which are a structural part of the package. The current concept for the tie-down system includes two cradles with cables strapped around the steam generator, and a key block to restrain the package longitudinally.
2.
Tie-down standards.
NU has evaluated the tie down standards of DOT, AAR, NRC, and ANSI.
NU proposed to follow the standards in ANSI N14.24 which are for barge transport of highway-route controlled quantities of radioactive material. The ANSI standard has provisions for accelerations due to collision, wave action, etc., as well as stress limits.
3.
Tie-down system evaluation.
NU has evaluated the proposed steam generator tie-downs against the ANSI standard.
NRC stated +' at the allowable stress limits appeared too high, and it was not clear that the standards should be applied to the trailer.
NRC stated that the stresses in the trailer members y 1110 ME CEMEfl Cr#Y 9205210066 920519 i
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2 should also be subject to a set of Allowable stresses and that the adequacy of this set of allowables should be justified.
NRC stated that a block could be welded on the steam generator at the transition to bear against a fixture on the trailer, provided there were no attachments to the block.
4.
Certification of package tie-downs.
NRC recuested that HU dettraine if the package tie-down system will be reviewed and certified by an independent agency, such as the Coast Guard or the insurer. NU stated that t5ey would provide that information by telephone within a week.
5.
Shipment schedule.
NV stated that the removal of the old steam generators i
is scheduled to begin in May.
NU stated that they had hoped to have package certification by the time the steam generator removal started.
Original signed by Nancy L. Osgood Transportation Branch Division of Safeguards and Transportation NMSS 8
8 8
DISTRIBUTION:
NRC PDR NRC File Center-NMSS r/f SGTB r/f CEMacDonald-Meeting Attendees Meeting Notebook GVissing 6ii, :SGIB g :SGTB
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NAME:NL0sgood
- CRC a pell DATE:5/13 /92
- 5/
/92 0FFICIAL RECORD CO)Y
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