ML20079E679
| ML20079E679 | |
| Person / Time | |
|---|---|
| Site: | Summer  |
| Issue date: | 09/27/1991 |
| From: | Skolds J SOUTH CAROLINA ELECTRIC & GAS CO. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| NUDOCS 9110070264 | |
| Download: ML20079E679 (2) | |
Text
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SEP 2 71991 Document Control Desk U. S. Nuclear Regulatory Commission Washington, DC 20555 Gentlemen:
Subject:
VIRGIL C. SUMMER NUCLEAR STATIOM DOCKET NO. 50/395 OPERATING LICENSE NO. NPF-12 VANTAGE + RELOAD FUEL - IMPACT ON 10CFR51.52 (TSP 090021-1)
As requested in the September 24, 1991, phone conversation with Mr. G. F.
Wunder, South Carolina E'ectric & Gas (ompany (SCE&G) hereby submits an analysis per Paragraph (b) of 10CFR51.L2, " Environmental Effects of Transportation of Fuel and Waste - Table S-4."
SCE&G has examined the properties of ZIRLO and has determined that the change in cladding material associated with VANTAGE + fuel has no impact on the entries in Table S 4 Listed below are the entries in Table S-4 and a discussion of the effect of ZIRLO on each:
1.
Heat (per irrediated fuel cask in t"ansit) -- The use of ZIRLO cladding does r.ot effect the heat transferred from an irradiated cask during transit because ZIRLO has essentially the same thermal / physical properties a2 Zircaloy-4.
2.
Weight - The total core clad transit weight is not affected by the use of ZIRL0 cladding because the density of ZIRL0 is essentially the same as that of Zircaloy-4.
3.
Traffic density - Using ZIRLO cladding does-not impact traffic density because the fuel rod cladding has no relevance to the frequency of-truck or rail transit.
4.
Transportation workers (exposed population) - Cladding has an insignificant impact on the stated range of doses to exposed transportation workers because less than 1% of the radiation field is due to the fuel cladding. This will r.ot change with the use of ZIRLO cladding material.
5.
General public (exposed population) - As P '*em 4, this entry will not change with the use of ZIRLO cladding bece. less than 1% of the radiation field is due to the fuel cladding.
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Document Control Desk TSP 890021-1 Page 2-6.
Radiological effects - The use of ZlRLO cladding material does not increase the radiological effects or the environmental risk to the
- public because the source terms used in accident analyses are not affected by the material change.
7.
Common (nonradiological) causes - The use of ZlRL0 does not impact this entry because ZlRLO has essentially the same mechanical properties as Zircaloy-4, but with improved corrosion resistance'and dimensional stability.
Additionally, items (1), (2), (4), (5), and (6) are addressed in more detail in WCAP-12610, yANTAGE+ Fuel Assembly Reference Core Rep _ ort, which has received NRC app seal.
To summarize, SCE&G has examined the effect of the use of ZIRLO cladding material on the environment during fuel transport and has determined that there is no impact on the entries in Table S-4 of 10CFR51.52.
I declarc that the statements and matters set furth herein are true and correct to the best of my knowledge, information, and belief.
Should you have any questions, please call at your convenience.
Very truly yours,
)
John L. Skolds EWR:JLS:lcd c:
- 0. W. b xon Jr.
R. R. Mahar, R. J. White S. D. Ebneter G. F. Wunder General Managers NRC Resident Inspector J. B. Knotts Jr.
H. G. Thealy L. R. Cartin NSRC RTS (TSP 890021) l i
NUCLEAR EXCELLENCE - A SUWiLR IRADITION!
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