1. Good electrical performance for meter box. The fiber reinforced polyester material used in the manufacture of electrical products has the following electrical properties: Insulation resistance (immersion in water for 24h): 1.0x10 MΩ Arc resistance: 180s Tracking resistance index: ≥600v Insulation protection and anti-climbing The electrical indicators conform to DIN/VDE related standards. This kind of material not only has good electrical insulation, but also maintains excellent dielectric properties at high frequencies, is not subject to electromagnetic effects, and does not reflect electromagnetic waves. These functions are far beyond what metal materials can compare.

2. Resistant to chemical erosion. Fiber reinforced polyester materials have good corrosion resistance to acids, salts, organic solvents, seawater, etc., while metal materials are not acid-resistant and seawater-resistant.

3. Lightweight and high strength, specific strength and specific modulus are one of the indicators to measure the bearing capacity of materials. The specific modulus of fiber-reinforced polyester materials is equivalent to that of steel, but its specific strength can reach 4 times that of steel.

4. Good anti-fatigue performance. The tensile strength of fiber reinforced polyester material is slightly better than that of steel. The fatigue resistance limit of steel and most metal materials is 40[%]-50[%] of its tensile strength, while fiber The fatigue resistance limit of reinforced composite materials is generally higher than this value, and the higher one can reach 70[%]-80[%].

5. Notch sensitivity, when the component is overloaded and a few fibers are broken, the load is quickly distributed on the undamaged fibers to reach the mechanical balance again. This is unmatched by metal components.

6. Low thermal conductivity and small expansion coefficient. When there is a temperature difference, the thermal stress generated by the distribution box manufacturer is much smaller than that of metal.

7. Excellent UV resistance and anti-aging performance. Among non-metallic materials, fiber-reinforced polyester materials have excellent anti-aging performance. The anti-aging performance test shows that the maximum aging thickness of the surface is less than 50 μm after 20 years in different places of use and in different climate zones. The minimum thickness of most boxes is 5mm, which is less than 1[%] of the box thickness, so it has no obvious impact on the mechanical properties of the box. In addition, the company has adopted a special UV-resistant surface treatment process to further strengthen its anti-aging performance.

8. Long service life. The use history in Europe can prove that its service life is less than 20 years; the simulated aging test shows that its service life is more than 20 years, far exceeding traditional materials such as metal. Some companies that produce pipes from this type of material also claim that their pipes have a service life of 50 years.

9. Flame retardant, smokeless, non-toxic, this material is a kind of flame retardant material, the flame retardant grade is FV0 (non-metallic materials are higher), and the smoke generation level under high temperature burning is 15 (smoke level Level 1-100), the smoke is non-toxic, and the toxicity level is ZA1 (quasi-safe level 1).