NMN Electrical Insulation Material for Interlayer Insulation
The insulating material is a material that blocks the passage of current. Its resistivity is very high, usually in the range of 10^9 to 10^22 Ω·m. Breakdown voltage and electrical strength are one of the main indicators affecting the performance of insulating materials.
The NHN insulating paper is composed of an intermediate polyimide film and two-sided Nomex1 paper. A soft composite material with a heat resistance rating of Class H (180 ° C). Has good mechanical properties such as tensile strength and edge tear resistance as well as good electrical strength. The surface is smooth and ensures trouble-free when producing low-voltage motors using automatic lowering machines. NHN is mainly used for the groove between the high heat resistance motor, the groove cover and the phase insulation. It can also be used as interlayer insulation for transformers or other electrical appliances.
In a strong electric field, the insulating material is destroyed, and the insulating property is lost to a conductive state, which is called breakdown. The voltage at the time of breakdown is called the breakdown voltage (dielectric strength). The electrical strength is the quotient of the voltage between the two electrodes when the breakdown occurs under the specified conditions and the voltage applied to the applied voltage, that is, the breakdown voltage per unit thickness. For an insulating material, generally, the higher the breakdown voltage and electrical strength, the better.