The round pipe used for conducting electricity through the wall is generally called high voltage wall through sleeve. From the material, it can be divided into dry capacitive wall through sleeve and porcelain insulated wall through sleeve. No matter what kind of high voltage wall through sleeve, some related matters should be paid attention to when installing and using.
Installation and use of high pressure wall piercing sleeve:
1. The aperture of the installation of the high-pressure wall-piercing sleeve should be more than 5mm larger than the embedded part, and the maximum thickness of the concrete mounting plate should not exceed 50mm.
2. When the high voltage through-wall bushing with rated current of 1500A or above is directly fixed on the steel plate, no closed magnetic circuit should be formed around the bushing.
3. Through the wall sleeve vertical installation, flange should be upward, horizontal installation, flange should be outside.
4. The metal splints (except fasteners) at the end of the 600A and above busbar high pressure through wall bushing shall be made of non-magnetic materials. There should be metal connection between the splints and the busbar, and the contact should be stable.
