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What we can do ? different country different requirement all we can offer.
Mid-voltage ( kV) | 3.6~35kv (E.g. 35,33,24,22,20,18,15.75,13.8,13.2,12,11,10.5,10,7.2,6.6,6.3,6 etc.) |
To Low voltage ( V) | 100-660V (E.g. 100,110,115,120,127,208,200,220,230,240,346,380,400,410,415,440,480,660 etc.) |
Frequency (HZ) | 50Hz or 60Hz |
Single phase electric meter box is a distribution box for installing single-phase electric energy meter. There is a meter reading window on the door. It is mainly used in civil buildings and commercial distribution systems
Stainless steel meter box fiber reinforced polyester material used for manufacturing electrical products has the following electrical properties:
Insulation resistance (immersion for 24h): 1.0x10 m Ω
Arc resistance: 180s
Electric leakage resistance index: ≥ 600V
Insulation protection and anti creepage indexes shall comply with relevant DIN / VDE standards. This material not only has Ji good electrical insulation, but also can maintain good dielectric properties at high frequency. It is not affected by electromagnetism and does not reflect electromagnetic waves. These properties are far better than those of non-metallic materials.
[stainless steel meter box] material characteristics
1. Good electrical performance
2. Chemical corrosion resistance
Fiber reinforced polyester materials have good corrosion resistance to acid, dilute alkali, salt, organic solvent and seawater, while metal materials are not resistant to acid and seawater.
3. Light weight 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 is equivalent to that of steel, but its specific strength can reach 4 times that of steel.
4. Good fatigue resistance
The tensile strength of fiber-reinforced polyester is slightly better than that of steel. The fatigue limit of steel and most metal materials is 40% - 50% of its tensile strength, while the fatigue limit of fiber-reinforced composites is generally higher than this value, Zui as high as 70% - 80%.
5. Notch sensitivity
When the component is overloaded and a small amount of fiber is broken, the load is quickly distributed on the undamaged fiber to reach the mechanical balance again. This is not comparable to metal components.
6. Low thermal conductivity and small expansion coefficient
When there is a temperature difference, the thermal stress is much smaller than that of metal.
7. Excellent UV resistance and aging resistance.
In non-metallic materials, fiber reinforced polyester materials have excellent anti-aging properties. According to the test of anti-aging performance, the Zui aging is 20 years less than 50 for different climatic zones. μ m。 The Zui small 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 aging resistance.
8. Long service life
The service history of Europe can prove that its service life is at least 20 years; The simulated aging test shows that its service life is more than 20 years, far exceeding that of traditional materials such as metals. Some companies that produce pipes with such materials also claim that the service life of their pipes is 50 years.
9. Flame retardant, smokeless and non-toxic
This material is a kind of flame retardant material, with flame retardancy grade of fv0 (non-metallic material Zui high Ji), smoke volume grade of 15 (smoke level 1-100) under high temperature ignition, non-toxic smoke, and toxicity grade of za1 (quasi safety level I Ji).
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