GB/T 42733 - 2023 is the standard for extruded PTFE hoses for electricians. The standard is clearly applicable to such hoses used in various types of equipment in the electrical field. Specify the material requirements of the product to ensure the stable performance of PTFE materials. Specify the appearance mass of the hose, such as the surface should be smooth and free of impurities. Make precise definitions of size specifications, including inner diameter and outer diameter tolerances. Electrical performance indicators such as voltage resistance and insulation and corresponding test methods are also stipulated. Provide mass control basis for production enterprises, help the electrical industry to accurately select PTFE hoses that meet the standards, and ensure the safe and stable operation of electrical equipment.