PE communication tube

     Plastic pipes for underground communication pipes Part 2: solid wall pipes YD / T 841.2-2008

Key words: corrosion resistance, high toughness, good deflection, easy construction, insulation, weight, light coil, impact resistance, wear resistance, easy connection

1. Corrosion resistance, long service life. In coastal areas, the groundwater level is high and the land humidity is high. The use of metal or other pipes must be corrosion-resistant, and the service life is generally only 30 years, while PE pipes can withstand a variety of chemical media, not affected by soil corrosion.

2. Good toughness and deflection. PE pipe is a kind of high toughness pipe, its elongation at break is more than 50%. The adaptability to uneven ground settlement and dislocation is very strong. Good earthquake resistance. Small diameter pipe can be bent at will.

3. The pipe wall is smooth, the friction coefficient is small, the cable is easy to be threaded, the construction efficiency is high, and the construction cost is low.

4. Good electrical insulation performance, long service life (more than 50 years), durable, safe and reliable line operation.

5. Light weight, maintenance, installation and construction, convenient maintenance, easy to transport and operate.

6. Small diameter pipe can be coil type, with long pipe section, few joints and simple installation.

7. The pipes can be made into various colors to show the difference.

8. Excellent impact resistance at low temperature. The embrittlement temperature of PE is very low, and it can be used safely in the temperature range of - 20 ℃ ~ 60 ℃. In winter, due to the good impact of the materials, the pipe will not be brittle.

9. Good wear resistance. Compared with other metal pipes, the wear resistance of PE pipes is 4 times of that of metal pipes.

10. The connection is convenient, and a variety of new construction methods can be adopted. In addition to the traditional excavation method, PE pipe can also be constructed by a variety of new trenchless technologies, such as pipe jacking, lining, split pipe, etc., which is the only choice for places where excavation is not allowed

1. The utility model is used for the wiring pipe concealed in the wall, buried in the underground non combustible body, and the wiring pipe for the household installation of rural buildings.

2. It is used in places with high fire risk, such as hotels, restaurants, shopping malls (large supermarkets), libraries, singing and dancing entertainment places and other public gathering places. When the ceiling and lines in the floor of these places are protected through pipes, because there are more combustible and flammable materials in the ceiling and floor, the flame-retardant PE communication pipe with higher combustion performance level shall be selected.

3. It is used for distribution lines for fire protection and electrical lines for automatic fire alarm system. It is compulsory to use flame-retardant PE communication pipe meeting the requirements of the Ministry of public security.

4. It is used for the reconstruction of exposed electrical circuit, interior decoration, secondary decoration of houses and the reconstruction of old and old buildings.

1. Use communication pipe to bury wire.

2. Circuit wiring should grasp the "shortest distance between two ends" and not be winded without reason, which will not only cause dead line, but also increase the power transformation input.

3. Do not wear too many wires in a communication pipe. After communication, you should pull it to see if it can be easily pulled.

4. If there is a joint in the line, a cassette buckle panel must be reserved at the joint, which is convenient for replacement and maintenance in the future.

5. When the diameter of PE communication pipe is less than 25, the bender shall be used instead of the elbow, and the dead line will be caused by the right angle dead bend.