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Solid Radioactive Waste Strategy Report.pdf - UK EPR

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<strong>EPR</strong> <strong>UK</strong><br />

N° NESH-G/2008/en/0123<br />

REV. A PAGE 229 / 257<br />

FIGURE 92: LOADING SPENT FUEL ASSEMBLIES INTO A TN CASK<br />

Preparation of the loaded TN Cask<br />

· Secure the primary lid with bolts;<br />

· Transfer of the TN casks to the decontamination enclosure;<br />

· TN cask closure and preparation for transfer to the operating place;<br />

· Preliminary leak test of the primary lid before draining of the cavity;<br />

· Drain and dry cavity (Figure 94);<br />

· Further leak tests of the primary lid (Figure 93);<br />

· Install secondary lid;<br />

· The level of external contamination on the TN cask is measured and verified<br />

to be acceptable for export from the building.<br />

FIGURE 93: LEAK TESTING OF PRIMARY LID

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