GPO-3 laminates quality identification and application

GPO-3 Product Introduction GPO-3 laminates, also known as UPGM-203, refers to unsaturated polyester glass fiber felt...

GPO-3 Product Introduction

GPO-3 laminates, also known as UPGM-203, refers to unsaturated polyester glass fiber felt material, which is used for mechanical and electrical purposes. It has good electrical properties under high humidity, good mechanical properties under medium temperature, flame retardancy, and good arc resistance and leakage trace resistance.
Specifications: 1000mm*2000mm/1250mm*2000mm/1250mm*2500mm
Standard Thickness: 1-40mm
Color: white, brown red, etc.

Application of GPO-3 laminate

Application in circuit breakers: Frame circuit breakers: safety baffles, safety shields, spacer pads, phase partitions, etc.
Application in molded case circuit breakers: phase partitions, arc extinguishing chamber arc partitions, etc.
Application in motors: motor armature parts, movable cover plates, slot wedge stators, fixed gaskets, thin gaskets, carbon brush holders, etc.
Application in switchgear: front end, rear end, upper end, bottom end, phase partitions, etc. in partition systems Other applications: arc-resistant structural parts

How to distinguish real GPO-3

1. Real GPO-3 sheets are certified by the American Safety Laboratory (UL certification), so they have independent UL identification file numbers. When purchasing this product, you should ask the manufacturer to provide the UL identification file number to distinguish the authenticity.
2. The leakage resistance index of real GPO-3 sheets can reach 600V.
3. According to international standards, the density of real GPO-3 sheets is between 1.81–1.83, and it does not contain fillers, which determines the reliability and stability of the sheets.
Simple way to distinguish finished and inferior GPO-3 products

You can light it with a match.

1. The ones that produce smoke are inferior products. GPO-3 products have very good adhesion, and the material itself is environmentally friendly and does not produce smoke.
2. Toxic gas is produced. Inferior products generally use flame retardants to achieve flame retardant effects, so there are pungent poisonous gases when burning. As the flame retardant evaporates, the product performance also decreases. It cannot be used in environments where people come into contact with it or in hot environments.
3. Combustion stratification. Due to the irregular structure of glass fiber felt, the mechanical tension of GPO-3 comes from the inside, and internal stratification will not occur during high-temperature carbonization. If there is stratification during combustion, it is a counterfeit product.