Do you know these about insulating paper?

Insulating paper is usually a sheet material formed by depositing plant fibers, mineral fibers, synthetic fibers or their mixtures on a paper machine through water or other media. Insulating paper has high tear strength, low elongation, and good insulation properties, so it is widely used as an insulating material in motors, cables, capacitors, and transformers. It is also a major component of insulating materials such as laminates, composites and prepregs.

In recent years, with the development of the electric power industry, modern power generation equipment and power transmission and transformation equipment have developed towards high voltage and large capacity. With the rapid development of science and technology in the world, various high-performance synthetic fibers have been developed and produced one after another and applied to the paper industry. Such as polyester fiber paper, polyaramid fiber paper, polysulfone fiber paper, polyoxadiazole fiber paper, etc., which have been successfully applied to electrical equipment such as batteries, transformers, and capacitors. In particular, the application of aramid insulating paper is the most common and successful.

Insulating paper can be divided into cable paper, telephone paper, capacitor paper and polyester insulating paper. Insulating paper is a kind of laminate made of paper or cloth as raw material, impregnated with different adhesives, and hot-pressed or rolled. Can be made into products with very good electrical and mechanical properties, thermal stability, oil resistance, mildew resistance, arc resistance and corona resistance. Commonly used in structural materials and insulating layer materials such as circuit boards, frames, gaskets, and rotating gears. Performance specifications depend on the properties of the substrate and adhesive as well as the extrusion process.

The more common insulating paper substrates are wood fiber paper and alkali-free glass cloth. Frequently used adhesives include phenolic resins, silicone resins, etc., which also have a greater impact on the performance indicators of laminated products. The insulating layer material is divided into Y, A, E, B, F,

Hand other grades according to the heat resistance grade. For example, the allowable operating temperature of Class A insulating materials is 105°C, while most of the insulating materials used in distribution transformers and motors generally belong to Class A. Separate the live parts of different potentials in electrical equipment, so the insulating layer material should first have high insulation resistance and withstand voltage strength, and can prevent safety accidents such as leakage and breakdown.

As a professional insulation material manufacturer, Yanan provides the most complete range of insulation paper to global customers. In addition to Ya'an, it also provides insulating varnish, insulating sleeve, insulating board, insulating tape, insulating film and other insulating materials.