Fiberglass copper enameled wires, also known as fiberglass insulated copper wires, are typically used in applications where heat resistance and insulation are critical. Due to their specific properties, the use of these wires in hermetically sealed motors offers a variety of benefits. 

Sealed Motor Applications:
Hermetic motors are designed to operate in hermetically sealed environments, typically in conditions where the motor is subjected to high temperatures, humidity, and potentially corrosive atmospheres. These motors are commonly found in refrigeration compressors, air conditioning systems, and other applications where the motor needs to be protected from external components.

Fiberglass Copper Enameled Wire:
Fiberglass copper enameled wire is wire with a layer of enameled insulation made from a fiberglass material coated on a copper conductor. This insulation provides excellent resistance to high temperatures and also has good mechanical strength and chemical resistance. Here are some of the advantages of using fiberglass copper enameled wire in hermetically sealed motors:

Temperature resistance: fiberglass insulation can withstand high temperatures without deterioration. This is critical for hermetic motors where motor operation or the surrounding environment may cause elevated operating conditions.


Electrical Insulation: The enameled insulation on these wires provides excellent electrical insulation, preventing short circuits and ensuring reliable motor operation.

Mechanical Strength: Fiberglass insulation has good mechanical strength, making the wire more resistant to bending, twisting and other mechanical stresses. This is important for motors where the wires may be subject to vibration or movement.

Chemical Resistance: Sealed motors are sometimes exposed to chemicals or gases. Fiberglass insulation is often resistant to many chemicals and corrosive substances, helping to extend the life of the motor.

Moisture Resistance: Hermetically sealed environments may involve moisture or humidity. Fiberglass insulation helps protect copper conductors from moisture, reducing the risk of electrical problems.

Durability: The combination of copper's superior conductivity and fiberglass insulation creates a durable wire that can withstand challenging conditions.

Space Efficiency: The thin enamel coating of the fiberglass insulation allows for more compact winding of the wire, which is important for motors where space is limited.

It is important to note that while fiberglass copper enameled wire has many advantages, its use requires careful consideration of motor design, operating conditions, and compatibility with other components. In addition, proper manufacturing techniques and quality control are critical to ensure consistent performance and reliability.

When designing or selecting wire for sealed motors, it is recommended to work closely with an experienced electrical engineer or motor manufacturer with expertise in that particular application. They can help ensure that the selected wire meets the motor's requirements and contribute to its overall efficiency and durability.