Q1：Definition and classification of insulation sheets
A1：The classification of insulation sheets is mainly based on material and purpose, such as:
Rubber insulation sheet: Usually made of rubber materials, such as rubber, silicone rubber, etc. They have good elasticity and electrical resistance and are often used in cable insulation, sealing and insulation of electrical equipment, etc.
Plastic insulation sheet: including various plastic materials, such as polyethylene (PE), polyvinyl chloride (PVC), polytetrafluoroethylene (PTFE), etc. These materials generally have good chemical resistance and electrical insulation properties.
Paper insulation sheet: Made of paper pulp or cellulose, specially treated to give it good electrical insulation properties. Paper insulation sheets are commonly used in electrical equipment such as motors and transformers.
Mica insulation sheet: Made of laminated mica sheets, it has good insulation and heat resistance. Mica insulation sheets are often used in high-temperature electrical equipment, such as motors, generators, etc.
Fiberglass insulation sheet: Made of fiberglass cloth impregnated with resin, it has excellent mechanical strength and electrical insulation properties and is often used to manufacture insulating structural parts.
Q2：What are the characteristics and performance of insulation sheets?
A2：Electrical insulation: The main function of the insulating sheet is to provide good electrical insulation properties and prevent the flow of current. This includes high resistance, low dielectric constant and dielectric losses.
Mechanical Strength: Insulating sheets need to have sufficient mechanical strength to protect electrical equipment from physical damage. This involves mechanical properties such as tensile resistance, bending resistance, and compression resistance.
Heat resistance: The insulation sheet must still maintain its insulation properties in high temperature environments. Heat resistance is usually expressed by temperature grade, such as H grade, C grade, etc.
Chemical resistance: For some special environments, the insulation sheet needs to be resistant to chemical corrosion to ensure long-term and stable use.
Moisture resistance: Insulation sheets need to maintain their electrical insulation properties in humid environments to prevent moisture from affecting their performance.
Radiation resistance: For some special purposes, the insulation sheet needs to have certain radiation resistance to cope with the radiation environment.
Arc resistance: For high-voltage equipment, the insulation sheet needs to have certain arc resistance to prevent damage caused by arc.
Environmental protection: Modern insulation materials are usually required to have good environmental protection, contain no harmful substances, and comply with relevant environmental protection standards.
Processability: Insulating sheets need to be easily processed into various shapes to adapt to different electrical equipment structures and requirements.
Aging resistance: The insulation sheet needs to maintain stable performance during long-term use and is not prone to aging, cracks, etc.
