Why do power pipelines now require inflatable waterproof plugging devices?

——WQBZ inflatable cable duct sealing system, flexible sealing technology for cable duct crossing, is suitable for sealing underground cable ducts and entrances and exits of underground cable ducts, and is waterproof, impervious and rat-proof in one step.

The gas-filled pipe plug made of aluminum foil composite material is to plug the pipe hole by using the principle of inflation and expansion. Waterproof glue is attached to both sides of the gas filling pipe plug. When the air pressure reaches 2.6-2.8kg, the waterproof glue will completely fill the gap between the pipe, the gas filling plug and the cable, thus achieving the effect of complete sealing. Silicone material installed on the inner side of the gas filling hole of the gas filling pipe plug. ...

I hope Beijing has fire fighting equipment. All the irons in front of our house are like this. Baidu has an address.

Sichuan gaode answers for you: scope of application: 1) it is suitable for waterproofing and plugging of pipelines with different properties (power, communication and urban construction); 2) It is mainly used for plugging holes in underground cables and pipelines and through-wall holes in civil walls; 3) Suitable for pipes made of plastic, steel, cement and other hard materials; 4) The plugging hole is only round or oval.

Inflatable cable duct sealing system, also known as inflatable cable duct sealing bag, is mainly used for sealing and waterproofing of communication duct nozzles in electric power urban construction. Zhuzhou complete sets of technology has such products. You can Baidu their company and they will provide you with detailed information.

First, clean the well in front of the entrance room and the local office. By arranging long ropes, plug the unused pipe holes in the manhole in all directions, align the pipe holes with the gaps of optical cables with nylon cloth, and then smooth the bell mouth with waterproof cement. The treatment method between the two wells before and after entering the house is the same.