What is AMA insulation material?

What is AMA insulation material?

AMA insulation material‌ is a composite material consisting of a polyester film in the middle and aramid paper on both sides. Its temperature resistance grade is F (155 ℃).

According to its mechanical strength and thermal stability, AMA composite insulation paper can be divided into various grades, commonly including AMA-A, AMA-B, and AMA-F. AMA composite insulation paper of different grades is suitable for different insulation systems of power equipment.
Standard specification

Thickness: The thickness of AMA insulation material is usually between 0.08mm and 0.63mm, and the specific thickness can be customized according to customer needs. For example, some brands of AMA insulating paper may range in thickness from 0.14mm to 0.63mm, while others may offer specifications from 0.18mm to 0.5mm.

Width: The standard width is usually 914mm (36 inches), but it can also be cut or customized to meet the specific needs of the customer.

Length: The length is usually customized according to customer requirements and can be supplied in whole rolls, or cut into tape trays or sheets.
Color: AMA insulating material is usually off-white or white, but the color may vary by brand and production process.

Characteristic

1.‌High temperature resistance: Its heat resistance grade is F (155℃), and it is suitable for electrical equipment and motors that need high temperature environment ‌.
2.‌Good mechanical properties: It has high tensile strength and edge tear resistance, which can ensure that it is not easy to damage ‌ during use.
3.‌Good electrical performance: It has good electrical strength and is suitable for the insulation protection of electrical equipment ‌

4.Chemical stability: AMA composite insulation paper should have good chemical stability and not be corroded by substances such as acid, alkali, solvents, etc.

Application

1.Motor Manufacturing:
Interslot insulation: Used between windings in motor stators or rotor slots to prevent current leakage and short circuits.
Interturn insulation: In the winding of a motor, it is used for insulation between different turns to ensure that the current flows according to the design path.
End insulation: Used to secure and insulate the end of the motor winding to prevent the direct flow of current to the motor housing.

2.Transformer manufacturing:

Interlayer insulation: Insulation is provided between layers of the transformer coil to prevent current leakage and short circuits.
Pad insulation: Used to support and insulate transformer coils, ensuring electrical isolation between coils.

3.Electrical equipment:

Cables and wires: Wrap the outside of cables and wires as an insulating layer to prevent current leakage and short circuit.
Electrical components: Used for insulation and support inside components such as capacitors, resistors, etc.
Electrical enclosure: As the insulation layer inside the electrical enclosure, it can ensure electrical isolation between the electrical enclosure and the internal circuit.

The specific use of AMA insulation materials may vary depending on the type of equipment, working environment and manufacturing standards. Therefore, when selecting and using AMA insulation materials, comprehensive consideration should be made according to the specific application scenarios and requirements.

Storage and precautions

Storage conditions: AMA insulation materials should be stored in a dry and clean room that room temperature is below 40 ℃ to avoid close to fire, heating and direct sunlight.
Storage period: It is usually stored for 12 months. If it exceeds the storage period, it can be used according to the technical standard inspection.

Ztelec Group is a professional manufacturer of high-quality electrical insulation materials with more than sixty-five years of manufacturing experience. If you need more product information and quotes, please contact us.