| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To achieve the reduction in the number of the work for installing shields and the like in on-site installation engineering works and other aims by carrying out the change, elimination and the like in the installation structure of radiation shields of two kinds mounted inside a reactor containment vessel. <P>SOLUTION: The structure of a building penetration in a nuclear power plant where a penetration sleeve 5 is fitted onto a through-hole placed on a wall or a floor of a building and which allows an electric wire 10 to penetrate the internal space of the penetration sleeve 5 is so constituted that it can incorporate the radiation shields 20 with a function of supporting the electric wire 10 in the penetration sleeve 5. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
