Materials and applications of high temperature cables
Materials and applications of high temperature cables
High temperature wire, is a high temperature resistant wire made of special materials, which is made of high temperature resistant and high-strength type and processed by special technology. The main features are high temperature resistance, insulation, fire and flame retardant, corrosion resistance, aging resistance, weather resistance, high strength, high modulus, anti-static, smooth appearance and so on.
Material of high temperature wire:
High temperature wire generally has two materials
One is silicone rubber, with good softness
There are also Teflon materials (i.e. polyfluoroethylene), and Teflon materials are harder.Silicone rubber can be used for the installation and connection of electrical circuits with AC rated voltage of 500V and below. It is widely used in electric heating appliances, paint baking rooms, lighting equipment, lighting and household appliances.
Teflon can be used in instruments, aerospace, electric power smelting, chemical industry, ships, vehicles, food machinery, household appliances, drying room and so on.
Features / uses:
It has excellent corrosion resistance, oil resistance, strong acid resistance, strong alkali resistance, strong oxidant, etc; It has excellent electrical insulation performance, high voltage resistance, low high frequency loss, no moisture absorption and large insulation resistance; It has excellent flame resistance, aging resistance and long service life.
Silicone cable characteristics:
The rated temperature of silicone wire is relatively high, basically up to 150 ℃ ~ 300 ℃, and the rated voltage is about 600V. Silicone rubber is used as insulating material, with uniform insulation thickness, which is convenient for peeling and cutting
◆ standard: ul348931-1, RoHS
◆ the conductor shall be 30-16awg single or stranded bare copper or tinned copper wire
◆ silicone rubber insulation
◆ uniform insulation thickness for easy peeling and cutting
◆ application through ft2 horizontal combustion test:
It is applicable to the long-term allowable working temperature of the cable below + 180 ℃ and allowed to be used within the ambient temperature range of not less than - 60 ℃. The connecting wire produced by bailev is applied to the electrical connection between mobile electrical equipment in high-temperature environments such as power generation, metallurgy and chemical industry. Wiring in high-temperature places such as household appliances, lighting fixtures, electronic equipment, electrothermal products, heavy industrial machinery, power installation, industrial machinery and electrothermal products, as well as internal connecting wires for microwave ovens, fax machines, printers, copiers, scanners and other machines, instruments and meters, motor lead wires, electronics, gas appliances and other high-temperature environments.
In the electronic industry, it can be used for temperature compensation wire, low temperature resistant wire, high temperature heating wire, aging resistant wire and flame retardant wire; In the household appliance industry, it can be used for internal wiring of air conditioner, microwave oven, electronic disinfection cabinet, electric rice fort, electronic thermos, electric heater, electric oven, electric frying pan, lamps and lighting, etc
What determines the standard of heat resistance and high temperature wire and cable
Heat resistance and high temperature wire and cable are usually determined by two standards. The first is that the operating temperature of wires and cables is high, and the cable can normally transmit data signals or electric energy under high temperature for a long time; The other is electricity
Heat resistance and high temperature wire and cable are usually determined by two standards.
The first is that the operating temperature of wires and cables is high, and the cable can normally transmit data signals or electric energy under high temperature for a long time;
The other is the transmission cable of power engineering. The key is to improve the interception capacity for the important purpose.
Cables for working in high temperature natural environment. Generally, the cable is easy to cause embrittlement and scorch of the outer insulation at high temperature. The application cable lacks characteristics and can not be used due to damage.
The high-temperature cable can work normally and stably under the rated value and high temperature, the data signal or power transmission characteristics will not be endangered, and the cable can also ensure a long service life. This kind of cable is the most common type of high-temperature cable, and its application characteristics are also the most conducive to understanding.
The key of load increasing high-temperature cable is to reduce the cable diameter and net weight under the premise of current carrying and develop towards lightness. Generally, the higher the working temperature of the cable, the greater the current carrying capacity of the cable at the same cross-sectional level.
In airports, cars and other places, reducing the net weight is of great practical significance. The application of high-temperature cables greatly reduces the cross-sectional layer. When the working temperature rises from 90 ℃ to 155 ℃, the current carrying capacity increases by 50%. Similarly, under the current carrying capacity of the cable, the net weight of the cable is reduced by 1 / 2, and the cost is also reduced to a certain extent. Of course, in addition to high current cut-off, the power consumption of most outer insulating materials will also increase.