For high frequency or high temperature coils, silk-covered wire can provide stray capacitance isolation, increase insulation strength, reduce surface temperature rise, and is widely used in antenna inductors, video equipment, high frequency inductors and transformers. After wrapping the silk wire, it can be directly sprayed with hot acetone and bonded to form a peak mesh (peak mesh). Silk-covered wire. Can improve the production effect. The q value is higher than the general wire. The capacitance is stable and the error is small. Insulation refers to the main insulation wrapped around the outside of the coil.

This type of insulation belongs to the insulation of the main armature coil, the main pole and the commutator pole coil to the landlord. Mainly under the rated voltage of the motor or can appear overvoltage, its working voltage is higher, so its electrical function, mechanical function and thermal function are to meet the needs of the working conditions of the motor. Silk-covered wire has the advantages of good corona resistance, good dielectric properties, strong load capacity, high temperature resistance, etc., and is widely used in high-power equipment such as transformers.