Adhesive tape is used for anti-corrosion winding, divided into cold winding and hot winding. Cold winding manufacturing process: PVC film is used as the base material and coated with rubber pressure sensitive adhesive. The following is the manufacturing process of the tape.
specifically refers to electricians used to prevent leakage and as an insulation. It is composed of a base tape and a pressure-sensitive adhesive layer. The base tape is generally made of cotton cloth, synthetic fiber fabric and plastic film, and the adhesive layer is made of rubber and tackifying resin, which has good adhesion and excellent insulation properties. It has good insulation, pressure resistance, flame resistance and weather resistance, and is suitable for special wire connection and electrical insulation protection.
It is widely used in electrical operations such as binding, joints, insulation and sealing of wires with voltages below 380 volts. There are two types of production processes: rubbing and gluing. Manufacturing process: Based on PVC film, coated with rubber pressure sensitive adhesive.
In the process of using electricity, although people have noticed the influence of the cross-sectional area of the power cord material, they often pay insufficient attention to the use of the joint. Now the laying of power lines is becoming more and more complicated and can be found on wooden floors, walls, partition walls, and damp ground or water. If used improperly, leakage will occur. So to use insulating tape correctly, the power cord connectors are divided into ‘connection’, ‘connection’ and ‘T’ connection. The seam should be tightly wrapped, smooth and free of burrs; otherwise, before disconnecting the threaded end, wire pliers should be used to gently press the threaded end, then wrap around the pressure port, and then swing left and right, so that the threaded end will be in the joint in a compliant manner处分。 Disconnected. If the seam is in a dry place, first wrap 2 layers with insulating black tape, then wrap 2 layers with plastic, and then stretch 2~3 layers with insulating self-adhesive about 200%, and then wrap 2 layers with plastic.
Because there are many shortcomings of using plastic directly, the plastic will be easily dislocated when it takes a long time; when the electrical appliance is overloaded, the joint will heat up, and the plastic tape will easily melt and shrink; the power connectors are squeezed in the junction box. When the connector has burrs, it is easy to puncture the plastic tape.
These hidden dangers cause short circuits in the circuit and cause fires. However, the above situation will not occur when using insulating black tape. The insulating black has certain strength and flexibility, can be tightly wrapped around the joint for a long time, and is compact and shaped due to the influence of time and temperature, will not fall off, and is flame retardant . Furthermore, it is wrapped with insulating black tape and then wrapped with plastic tape to prevent moisture and rust.
To sum up, of course, the insulation is also defective. Although the tape has good waterproof performance, it is easy to break. Therefore, two layers of plastic should be wrapped as a protective layer for better performance.