Have you ever encountered water and moisture seepage at the cable duct mouth in your daily life? Is it unknown to many people that waterproof sealing materials need to be used for cable duct sealing? So what is the effective method for waterproof sealing of cable ducts? Let's take a look together.

　　Waterproof sealing method for cable duct opening

　　1. Firstly, remove debris and rust from the waterproof sealing sleeve of the cable, and then spray anti rust paint on the wall of the waterproof sleeve. After it dries thoroughly, the cable can be threaded through the waterproof sleeve.

　　2. Fill the middle two-thirds of the waterproof work sleeve with hemp thread, and use hemp thread to fill the upper, lower, left, and right structures of the pipeline tightly.

　　3. Fill both ends of the waterproof sleeve with waterproof cement, so that the waterproof sleeve is made into a slope 15cm outside the cable. Then wrap the waterproof sleeve tightly with insulating oil paper and proceed to the next process.

　　4. Conduits with threaded cables should pass through waterproof sleeves.

　　How to Construct Waterproof Sealing for Cable and Waterproof Sealing for Cable Pipe Orifices

　　1. Inorganic fire blocking material construction

　　Construction should be carried out according to the size of the holes to be blocked for cable waterproofing. For holes larger than 0.2m, inorganic partition boards should be used as reinforcement base plates to ensure flatness, smoothness, and no edges or burrs.

　　2. Construction of organic fireproof blocking materials

　　Wrap an organic building fireproof blocking material around the cable and its surroundings, ensuring that it is evenly and densely packed, with the blocking material higher than the partition, and use an aluminum alloy frame design to shape it. The depth of the plugging material embedded into the pipe mouth should generally not be less than 50mm, and the reserved hole should be sealed smoothly.

　　3. Construction of cable waterproof sealing and fireproof package

　　Wrap organic fireproof blocking materials around the cable, place the fireproof partition of the well at the bottom of the hole, and the fireproof bags must be dense.

　　4. Construction of waterproof and fireproof partitions for cables

　　Install bolts on the support arm of the bracket, and ensure that the partition is perpendicular or parallel to the bracket to ensure the same horizontal plane. The exposed bolt heads should not be too long, and the connection between partitions should be overlapped by about 50mm and fixed with bolts. Pay attention to firmness and flatness, and the fixing method should meet the design requirements.