SEALED CABLE INLET THROUGH AN EXTERNAL AND AN INTERNAL WALL OF A CONTAINMENT SHELL OF A NUCLEAR POWER STATION
    1.
    发明公开
    SEALED CABLE INLET THROUGH AN EXTERNAL AND AN INTERNAL WALL OF A CONTAINMENT SHELL OF A NUCLEAR POWER STATION 审中-公开
    外部和内部墙上的安全容器,核电厂的密封铅简介

    公开(公告)号:EP3113187A1

    公开(公告)日:2017-01-04

    申请号:EP15754412.3

    申请日:2015-02-17

    IPC分类号: G21C13/04 H02G3/22

    摘要: The invention relates to electrical engineering namely to sealed inputs of electric circuits into the confinement area of multi-layer nuclear power plant containment. The development can be used in penetrations through external and internal walls subjected to relative mutual displacement due to seismic events or thermal expansion of walls and penetrations. The purpose of this invention is to improve operating reliability of the sealed cable input if hard-bending high-voltage electrical conductors are used. This purpose is achieved by the sealed cable input through external and internal walls of the nuclear power plant containment containing an embedded connection pipe 3 inside internal wall 1 with internally and rigidly fixed cable 2 input 44. Compensation means for relative motion of cable 2 and external wall 11 are located in line with connection pipe 3 inside external wall 11. Compensation means are equipped with pipe 19 with bellows 24 on external end 20 and the second similar bellows 25 located symmetrically on the opposite end 21 of pipe 19 near internal surface 18 of external wall 11. Loose ends 30 and 31 of both bellows 24 and 25 are tapered, their internal surfaces 28 and 29 are supporting cable 2 output 46 freely installed in pipe 19 with gap 47 in relation to internal surface 49 of pipe 19. Gap 47 between braiding 48 over the external surface of cable 2 and internal surface 49 of pipe 19 is selected based on the calculations. Gap 47 shall be at least equal to the maximum orthographic thermal and seismic planar motion of internal wall 1 in relation to external wall 11 and the change of cable 2 coaxial position in pipe 19.
    1 independent claim, 5 dependent claims, 3 figures.

    摘要翻译: 本发明涉及电气工程,即到电气电路的密封投入多层核电站安全壳的限制区域。 显影可以通过进行相对相互位移的外部和内部的墙壁穿透被用于由于地震事件或壁和穿透的热膨胀。 本发明的目的是为了提高密封电缆输入的操作可靠性,如果使用硬弯曲高压电气导体。 这个目的是通过在核电厂容纳嵌入连接管3的内部包含壁1内与内部和刚性地固定电缆2输入44.补偿装置,电缆2和外部的相对运动的外部和内部的墙壁的密封电缆输入取得 壁11位于符合外部壁11内的连接管3补偿装置都配有管19与外端20的波纹管24和第二波纹管类似25对称地位于管19的相对端部21的内表面18附近 外部壁11松散端部30和两个波纹管24和25是锥形的31,它们的内部表面28和29被支撑缆线2输出端46自由地安装在管19与47的间隙19相对于管47的间隙内表面49 在电缆2和内表面的外表面编织48之间管19的49来选择基于所述计算。 间隙47应至少等于最大正交热和地震平面内部壁1相对于外部壁11运动和电缆2同轴的位置在管19 1独立claimsoft,5的从属权利要求,3位数字的变化。