ML20203H254
| ML20203H254 | |
| Person / Time | |
|---|---|
| Site: | 07109071 |
| Issue date: | 07/18/1986 |
| From: | Jerome Murphy ANEFCO, INC. |
| To: | Macdonald C NRC OFFICE OF NUCLEAR MATERIAL SAFETY & SAFEGUARDS (NMSS) |
| References | |
| 27226, NUDOCS 8608040345 | |
| Download: ML20203H254 (6) | |
Text
RETURN TO 396-SS 7 /- 9 4 7 /
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904 Ethan Alten Hwy ANEFCO INC. l *efoTeme 0e877 203 43i.3358 July 18, 1986 J
g U.S. Nuclear Regulatory Ccmnission
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D-Division of Fuel Cycle & Material Safety Q(({ly{Q JUL221986 )]
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Washington, D.E. 20555
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Attention; Charles E. Mac Donald g
U.S. NUCLEAR REGULATORY f Chief, Transportation Certification Branch COMMISSION NMSS
Subject:
ANEFCO Model AP-101 Type B () Licnese b
E Mmor Modification A
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Reference:
Docket No. 71-9071 Gentlenen:
Enclosed you will find a copy of the technical background for the minor modification to the interior containment systen of the AP-1011 shipping cask entitled Support Structure for bhipnent of CPGT in AP-101 Cask.
We respectfully request a nodification to the Certificate of Canpliance to incorporate this.
Also enclosed you will find our check no.1300 in the anount of $150.00 for the required fee.
Very truly yours, ANEK D Incs
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,,.Cohn D. Murphy j President Encls.
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4 SUPPORP dTMA;1CRE FOR SiiIPMENT OF CIUf IN AP-101 CASK A structrue is installed in the AP-101 shi ping cask to support two containers i
to hold control rod guide tubes (CBGT )while in transport. W e weight of the support structure and the CPGT's in the containers will be evenly distributed
. over the contact area between the support structure and the inner shell wall of the AP-101. The loading on the inner shell wall can be expressed as:
W L=g where W = weight of the load = (lbs) 2 A = contact surface area = (in )
2 L = load (lbs/in )
W e contact area is 161" long and 1.56" wide on each side of.the cask for a total contact area of:
2 502.3 in 161" x 1.56" x2
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We total weight of the support structure and the loaded containers is less than 4,000 lbs. W e loading on the inner shell of the AP-101 cask will, there-fcre be:
4,000 lbs = 7.96 psi Sy(30,000 psi)
(yield strength) 3, 502.3 in' This is considerably less than the yield strength of the shell material shown in Table 1.3 of the SAR. W e load can, therefore, be safely transported in the AP-101 cask. W e calculation of the contact area is shown below and represented in the attached Drawing AP-101-O-86142-2. The anti-rotation device is tack i
welded to the inside of the cask, as shown in Detail A of the drawing. his device is installed to prevent inadvertant rotation of the support structure and will not be load bearing.
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