Insulation Paper
(2)
Ceramic Fiber
(8)
Asbestos Fiber
(13)
Fiberglass
(7)
Mica Products
(13)
Gasket Sheets
(8)
Gaskets
(5)
Irrigation Products
(138)
Garden Nozzles
(1)
Plastic Valves
(13)
PVC Pipe Fittings
(24)
Electric Valve
(4)
The role of Insulated Material in electrical equipment in the electric potential of different parts of the live segregated. Therefore, the first insulating material should have a high insulation resistance and compressive strength, and can avoid leakage, breakdown and other incidents. Second, better heat resistance to prevent overheating due to the long-term aging deterioration; In addition, there should be a good thermal conductivity, resistant to moisture lightning and high mechanical strength and process to facilitate processing and so on. Based on the above requirements, the performance of Insulated Materials commonly used indicators dielectric strength, tensile strength, specific gravity, expansion coefficient.
Insulation Withstand Voltage: insulator at both ends of the voltage added by the higher material charge by the electric field strength within the greater, the more prone to ionization collisions, resulting in insulation breakdown. So that the minimum breakdown voltage of an insulator is called the breakdown voltage of the insulator. To 1 mm thick insulation breakdown, you need to add the number of voltage kV insulation called the compressive strength insulating material, referred to as dielectric strength. As the insulating material has a certain amount of insulation strength, all kinds of electrical equipment, a variety of security appliances (electrical pliers, electrical testing pen, insulated gloves, insulated rod, etc.), all kinds of electrical materials, manufacturers are set to allow the use of a certain voltage, called for the rated voltage. Withstand voltage when used shall not exceed its rated voltage in order to avoid accidents.
Tensile strength: cross-sectional area unit of insulating material can withstand the tension, for example, cross-sectional area per square centimeter of glass can withstand the pull of Newton 1400.
The insulating properties of insulating materials are closely related to temperature. The higher the temperature, insulation materials, insulation worse. To ensure the insulation strength, insulation materials, each has an appropriate maximum allowable operating temperature below this temperature, you can use long-term security over this temperature will be aging rapidly. In accordance with the degree heat, the insulation material is divided into Y, A, E, B, F, H, C, etc. level. For example, A-insulating material the maximum allowable working temperature of 105 ℃, the general use of the distribution transformer, electric motor in the insulating material are.
Common insulating material are Insulation Paper, Ceramic Fiber, Impregnated Fabric etc.
