Polyester enamelled rectangular copper wire, classified under Class 155. Understanding its properties and advantages helps in making informed decisions for its use in various industrial and consumer applications.

The IEC 60317-0-15 standard describes in detail the product properties and main applications of polyesterimide enameled round aluminum wire class 180.

The IEC 60317-0-4:2020 standard details the manufacturing and performance requirements for glass-fiber-wound, resin- or varnish-impregnated, bare or enameled rectangular copper wire.

Solderable polyurethane enamelled round copper wire, class 155, is a self-fluxing enamelled copper wire of thermal performance class F. The most outstanding characteristic of this wire is the possibilty of having an efficient and safe contact of the wire ends by fast and easy solderability with a solder bath temperature from 390 °C upwards without prior mechanical removal of the insulation film.This type of enamelled copper wire fulfills the requirements of modern winding technology. Solderable polyurethane enamelled round copper wire can be easily welded and mechanically connected. Sophisticated process technology and process setting ensure easy mouldability, best elongation plus constant and good insulation characteristics of these wires.

When making enameled wire, it is very important to choose paint with high solvent resistance. Common paints include polyurethane paint, phenolic paint, acetate paint, etc. These paints have good solvent resistance and can maintain good insulating properties when exposed to solvents.

Solderability testing is crucial to whether the enameled wire material and welding quality can form a strong relationship with the welding material, and the necessity of testing the weldability of enameled wires lies in several key factors.

Special enameled wire is resistant to Freon-22 corrosion and can be used as winding wire for motors in fully enclosed or semi-enclosed refrigeration compressors. The refrigerant can flow directly through the inside of the motor without the winding wire being corroded. It is suitable for refrigerators, window air conditioners, constant temperature and humidity equipment, air coolers and other products. Therefore, before leaving the factory for use, it is necessary to test the refrigerant resistance of enameled wires.

Hydrolysis and transformer oil resistance tests are crucial for maintaining the performance, safety, and longevity of magnet wires in various applications. And the necessity of testing the hydrolysis and transformer oil resistance of magnet wire lies in several key factors.

Biscuits are food products made mainly from cereal flour, with added sugar, oil, and other ingredients. They are processed by mixing flour (or slurry), shaping,