PPS sheets (polyphenylene sulfide sheets) are a type of high-performance thermoplastic engineering plastic sheets with excellent comprehensive properties, and they have important applications in many high-end fields.​ PPS sheets exhibit excellent performance in the field of electrical accessories, making them ideal materials for this domain.

In terms of performance, PPS sheets possess outstanding electrical insulation properties. They have extremely low dielectric constant and dielectric loss, and can maintain stable insulation characteristics over a wide range of temperatures and frequencies. This effectively prevents current leakage and ensures the safe operation of electrical equipment. Meanwhile, they demonstrate excellent arc resistance, being able to withstand the high temperature from arcs without easily carbonizing. With a high arc resistance value, they can reduce the risk of insulation damage caused by arcs. In addition, PPS sheets also have good mechanical strength and temperature resistance. Under the influence of heat generated during the operation of electrical equipment, they can still maintain structural stability and are not prone to deformation, meeting the requirements for dimensional stability of electrical accessories.​

In specific applications, PPS sheets are widely used in the manufacturing of various electrical accessories. For example, in the field of connectors, by virtue of their excellent electrical insulation and temperature resistance, they are made into insulating housings and contact brackets for various plugs and sockets, ensuring stable and safe current transmission. In relays, PPS sheets can be used to produce components such as relay bases and armatures. Relying on their good mechanical properties and arc resistance, they guarantee the reliable operation of relays. In circuit breakers and switchgear, they are often used as insulating partitions and components of operating mechanisms, capable of withstanding arcs and high temperatures generated during switch operations, thus improving the service life and safety of the equipment. Furthermore, PPS sheets also play an important role in insulation components of motors and skeletons of transformers, providing strong support for the efficient and safe operation of electrical equipment.​