The applications of PEEK (polyetheretherketone) raw materials in nuclear power cables are as follows:

• Insulation layer: PEEK has excellent electrical insulation properties and can withstand high voltages without breakdown, effectively preventing current leakage and short circuits, ensuring the safety and stability of nuclear power cables during power transmission. At the same time, its insulation performance can still remain good under long-term high-temperature and high-radiation environments, reducing the safety risks caused by insulation aging.

• Sheath: The sheath made of PEEK raw materials has good mechanical properties, such as high strength and high toughness, and can resist external mechanical impacts, abrasions, and chemical corrosion, protecting the conductors and insulation layers inside the cable from damage. In the complex operating environment of nuclear power plants, it can effectively extend the service life of the cables and reduce maintenance costs.

• High-temperature and radiation-resistant components: Due to the excellent high-temperature and radiation-resistant properties of PEEK, it can be used to manufacture some key components of cables, such as cable joints and terminals. These components need to maintain stable performance in the high-temperature and high-radiation areas of nuclear power plants to ensure the overall reliability of the cable system.