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1 CARR电缆贯穿封堵组件的结构特点在反应堆安全壳的墙体内用混凝土浇筑电缆贯穿封堵组件的预埋管,预埋管的两端设有密封结构,密封结构由压紧法兰和夹板组件组成,板夹组件由两块不锈钢夹板中间夹一块硅橡胶垫组成,在板夹和硅橡胶垫上钻有电缆穿孔,当穿孔穿上电缆时,紧固螺钉通过法兰和夹板使硅橡胶垫变形紧抱电缆达到密封效果(图1)。板夹和硅橡胶垫均有切缝,便于电缆的拆除与更换。在封堵组件的一端设有检验导管,可进行打压检漏。
Structural features of a CARR cable through the plugging component Concrete pouring cables through the wall of the reactor containment shell penetrate through the embedded tube of the plugging assembly. The two ends of the embedded tube are provided with a sealing structure formed by the compacting flange and Composed of two stainless steel clamps sandwiching a silicon rubber pad in the middle of a clamp and a silicone rubber pad drilled with a cable penetrating hole. When the cable is penetrated, the fastening screw passes through the flange and the splint to make the silicone rubber Cushion deformation tight cable to achieve sealing effect (Figure 1). Board clip and silicone rubber mat have kerfs, easy to remove and replace the cable. A check catheter is provided at one end of the plugging assembly to suppress leak detection.