GPO-3 sheet is also known as UPGM-203 or GPO-3 laminate sheet.It is a hard plate-shaped insulating material made of alkali-free glass fiber felt board impregnated with unsaturated polyester resin paste and added with corresponding additives through hot pressing process. This material has been widely used in many industrial fields due to its excellent mechanical and electrical properties. The following is a detailed introduction to GPO-3 sheet and a discussion of its application areas.
Characteristics of GPO-3 sheet
1. Electrical properties: GPO-3 sheet has excellent electrical properties, especially in high humidity environment. Its electrical properties remain good. It has excellent resistance to leakage traces, and the leakage resistance index can reach 600V. At the same time, its arc resistance is also very strong, and it can perform stably in arc resistance tests of more than 180 seconds.
2. Mechanical properties: At medium temperatures, the mechanical properties of GPO-3 sheet are excellent. It has the characteristics of high strength, good impact resistance, and good heat resistance. In addition, the material also has good weather resistance and chemical resistance, and can adapt to various harsh environments.
3. Flame retardant properties: GPO-3 sheets are flame retardant and can effectively prevent the occurrence and spread of fire. Among them, Grade UTR grade GPO-3 sheets do not contain halogens, and produce very little smoke and toxic smoke when on fire, which improves safety.
4. Processing performance: GPO-3 sheets are easy to process and can be processed by stamping, drilling, machining, shearing and grinding using standard metal operating equipment. Grade UTR is well-known for its easy high-speed molding in machining centers.
5. Specifications and colors: GPO-3 sheets have various specifications, ranging from 0.8mm to 100mm in thickness, and a variety of sizes such as 914×1828mm and 1220×2440mm. In terms of color, GPO-3 sheets are available in a variety of colors such as white and brown-red, with a smooth surface and uniform color.
Application of GPO-3 sheets
1. Electrical field: GPO-3 sheets are most widely used in the electrical field. Due to its excellent electrical and mechanical properties, it is often used in electrical equipment, dry-type transformers, control cabinets, generators, cable trays, power generation equipment and other occasions that require insulation. In circuit breakers, GPO-3 sheets can be used to make safety baffles, safety shields, spacer pads, phase partitions and other components.
2. Motors: In motors, GPO-3 sheets can be used to make motor armature components, movable covers, slot wedge stators, fixed gaskets, thin gaskets, carbon brush holders and other components. These components have high requirements for the electrical and mechanical properties of the materials, and GPO-3 sheets can just meet these requirements.
3. Switchgear: In switchgear, GPO-3 sheets can be used to make the front end, rear end, upper end, bottom end, phase partitions and other components in the partition system. These components play a role of isolation and protection in switchgear, and have high requirements for the insulation and flame retardant properties of the materials.
4. Arc-resistant structural parts: GPO-3 sheets can also be used to make arc-resistant structural parts, such as insulating brackets in high-voltage speed regulating devices and high-voltage soft-start power devices, as well as transformer components, ventilation and heat dissipation rods, core angle insulation between iron core and coil, corner insulation and other parts. These parts need to withstand high load strength and high temperature environment, and GPO-3 sheets can just meet these requirements.
5. Other applications: In addition, GPO-3 sheets can also be used to make busbar insulation troughs and insulation angles for power control and power transmission and distribution equipment, as well as cable ducts, cable culverts, cable racks, fuse clips, end insulation, cable brackets, busbar brackets, stiffening angles, core angles and insulation angles and other parts.
Precautions
When using GPO-3 sheets, it is necessary to strictly follow the relevant standards to ensure that it has excellent electrical insulation performance and mechanical strength. At the same time, it is also necessary to avoid static electricity accumulation, avoid friction and collision with sharp objects, and keep its surface clean.
In summary, GPO-3 sheets have been widely used in many industrial fields with their excellent electrical and mechanical properties. In the future, with the advancement of science and technology and the development of industry, the application areas of GPO-3 sheets will become more extensive.
