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Classification of general enameled wire
- Jan 31, 2018 -

According to the classification of insulation grade, the commonly used enameled wires are as follows:


Acetal enameled wire;

Thermal level for both 105 and 120, has a good mechanical strength, adhesion and resistance to transformer oil and refrigerant performance, but the product moisture resistant performance is poor, thermal softening temperature low breakdown, durable performance weak defects such as benzene - alcohol mixed solvents, is now only a few used in oil-immersed transformer, oil filled motor windings.


Polyester and modified polyester enameled wire, ordinary polyester enameled wire, heat level of 130, after modification of the enameled wire heat level of 155.

The product high mechanical strength, and have good elasticity, scratch resistance, adhesion, electrical properties and solvent resistance, it is the biggest a capacity in China, accounting for about two-thirds of: widely used in all kinds of motors, electrical appliances, instrumentation, telecommunications equipment and home appliance products;

The product has poor thermal shock resistance and low moisture resistance.


Polyurethane enamelled wire;

The thermal level is 130, 155 and 180.

The biggest characteristic is straight welding resistance, resistance to high frequency performance is good, easy coloring, moisture resistant performance is good, the product weakness is a bit poor mechanical strength, heat resistance is not high, and the production of large size line flexibility and adhesion is bad, should be widely in electronic appliances, fan motors and precision instruments, telecommunications, the finest of all kinds of heat resistance is not very high, but effective demand production products.


Polyester imide enamelled wire, thermal level 180, this product has good heat impact resistance, resistance to soften the breakdown high temperature, excellent mechanical strength, resistance to solvents and refrigerant performance is good, weakness in close condition easy to hydrolysis, widely used in heat resistant high motor, electrical appliance, instrument, power tool power dry type transformer winding, etc.


Polyester imide/polyamide imide enamelled wire si composite layer is more widely used at home and abroad to heat enameled wire, thermal level 200220, high heat resistance, the product has a refrigerant resistance, cold resistance, radiation resistance and other properties, high mechanical strength, electrical performance stability, good chemical resistance and freeze resistance performance, overload ability.

It is widely used in refrigerator compressor, air conditioning compressor, electric tool, explosion-proof electric motor and high temperature, high cold, radiation, overload and so on.

According to conductor material classification, can be divided into the following:

Copper wire (Copper), aluminum enameled wire (AL), shenzhou Copper clad aluminum enameled wire (CCA)

According to material shape: round enameled wire, flat enameled wire.

According to the thickness of insulating paint: round line: ultrathin paint film -0, thin film -1, thick paint film -2, thick paint film -3;

Flat wire: ordinary paint film -1 + thick paint film -2.

Enameled wire, an electrical material, consists of an inner conductor and an extremely thin layer of insulation.

Enameled wire has good insulation and waterproof ability, electronics are widely applied, such as motor, generator, water pump, electromagnet, electric welding machine, household appliances, wireless communication, speakers, telegraph, transformer, etc.