PVC-U line pipe, also known as threading pipe, is called "insulated electrical bushing for construction". It is a white hard, corrosion-resistant, leak-proof, wire-traffic pipe.

PVC-U line pipe is one of the important products of Guangdong Desu Technology Group Co., Ltd., and Deplastic Group strictly implements the national standard: JG 3050-1998. The production of De Plastic PVC-U line pipe products has the characteristics of flame retardant, low smoke, low toxic gas, strong impact resistance, acid resistance and corrosion resistance. The inside and outside of the tube are smooth, the insulation is strong, the environment is beautiful, and the life in normal conditions is up to 50 years. It is widely used in building fire protection, chemical industry, telecommunications, electric power, decoration and other projects. It can also provide special length and matching options according to user requirements.

PVC pipes have different functions in different application fields, so PVC-U pipe will be different in application. Let's take a look at how to use PVC pipe in different places.

1. For the line pipe that is darkly applied to the wall, buried in the underground and not burned in the body, and the line pipe for ordinary residential houses such as rural buildings, it must be used to meet the construction standard JG3050-1998 "Insulated electrical bushings and accessories for construction" PVC threading tube with certain flame retardant properties while meeting the requirements of physical and mechanical properties. According to the fine and local.

2. For places with high fire risk, such as hotels, restaurants, shopping malls (large supermarkets), libraries, song and dance entertainment venues, etc., the ceilings of the public gathering places and the lines inside the floors are protected by pipes, because they are inside the ceiling. There are more flammable and flammable materials, and flame retardant PVC-U wire tubes with higher combustion performance level should be selected.

3. For the fire-fighting distribution line and the automatic circuit of the fire alarm system, it is mandatory to use the flame-retardant PVC-U line pipe that meets the requirements of the Ministry of Public Security.

4. For the renovation of cultural relics, the construction of electric wiring, the decoration of interior decoration and the second decoration of the house, and the transformation of old and old buildings, it is necessary to use the Mingchuang line (hidden in the ceiling and the floor), and the combustion performance must be above B1. Flame retardant PVC-U line pipe.

PVC-U line pipe layout

After the slotting of the wall and the ground with a toothless saw is completed, the threading pipe is laid down, the wire diameter is not less than 16 mm flame retardant pipe and the "86" wire box, and then the thread is threaded inside the wire (wiring, phase and neutral) The color difference is separated.).

Secondly, when the power line pipe is buried, it should be considered to maintain a distance of more than 500 mm from the weak electric line. The parallel distance between the electric pipe and the hot water pipe and the gas pipe is not less than 300 mm. The strong and weak electricity is prohibited from being constructed in the same pipe, and the weak electric signal is disturbed. .

Third, the connection between the line and the line of the box is U-shaped and wrapped with 6-turn semi-national standard technology to prevent the wire connection from being tight and causing "ignition". The wire joints in the 5 line box of the lower box should be treated with “hanging tin” to prevent the short circuit of the wire from oxidizing, and the line tube is wrapped with waterproof tape and high-voltage insulating tape. Double-insulate the power cord connector with insulating tape and waterproof tape after the thread is worn.

For the power cord that goes on the top, the threaded pipe must pass through, and the wooden keel of the ceiling should be treated with fire prevention and pest control to avoid trouble for the user in the future. First use copper wire when selecting the wire, avoid using aluminum wire. Due to the poor conductivity of the aluminum wire, the wire is prone to heat or even a fire during the energization process. Then, the wiring must be insulated with a conduit.

If you hide the wires directly in the wall, it is equal to a time lurking at home, and you may leak electricity at any time. Of course, all kinds of different lines must not go the same line, such as TV antennas, telephone lines and so on.

The line connector should not be too much. If it must be wired, it should be insulated and moisture-proof. If conditions permit, it can be “small tin”. At the end of the renovation, the user must ask for a circuit diagram, which will help prevent the occurrence of hidden dangers in the circuit system, and will be used in future upgrades.