What Are The Characteristics Of NHN Insulating Paper

NHN insulation paper is composed of a polyimide film in the middle and Nomex paper (DuPont paper) on both sides, a soft composite material with a heat resistance class of H (180°C), and has good mechanical properties. These properties will determine its application.

What are the main influences on the performance of NHN insulating paper?

1. Flame resistance: refers to the ability of NHN insulating paper to resist burning when it comes in contact with the flame or prevent continued burning when it leaves the flame. People use various methods to improve and enhance the flame resistance of insulating materials. The higher the flame resistance, the safer.

2. Tensile strength: It is the large tensile stress that the sample bears in the tensile test. It is a common test for the mechanical properties.

3. Arc resistance: Under the specified test conditions, NHN insulation paper can withstand the arc action along its surface. In the test, AC high voltage and small current are used, and the high voltage is used to generate an arc between the two electrodes. The time required for the formation of a conductive layer on the surface of the NHN insulating paper is used to judge the arc resistance of the NHN insulating paper. The longer the time is, the better the arc performance.

4. Sealing degree: It has good sealing power against oil and water, with good tensile strength and edge tear resistance as well as electrical strength. Its surface is smooth, and it can ensure trouble-free application when using automatic offline machine to produce low-voltage motors. NHN is mainly used for slot, slot cover and phase insulation of high heat-resistant motors. In addition, it can also be used as interlayer insulation for transformers or other electrical appliances.