Features of high temperature wire and high temperature cable

Heat-resistant high temperature cables Heat-resistant wires are generally determined by two requirements. The first is that the ambient temperature of the wire and cable is relatively high, and the cable can normally transmit signals or electric energy under high temperature for a long time; the other is the power transmission cable, the main purpose is to increase the interception capacity.

Cables working in high temperature environment. Ordinary cables are prone to insulation aging and scorching at high temperatures, and the cables lose their performance and cannot be used due to damage. The high temperature cable can work normally and stably at the rated high temperature, the signal or power transmission performance will not be affected, and it can also ensure that the cable has a long service life. This type of functional cable is the most common type of high-temperature cable, and its usage characteristics are also the easiest to understand.

Load-increasing high-temperature cables are mainly developed to reduce the outer diameter and weight of the cables under the premise of ensuring current carrying, and to develop towards lightweight. Generally speaking, the higher the working temperature of the cable, the greater the carrying capacity of the cable with the same cross section. In occasions such as aircraft and automobiles, the significance of reducing weight is considerable, and the use of high-temperature cables greatly reduces the cross-section. When the working temperature rises from 90°C to 155°C, the current-carrying capacity will increase by 50%. Under the same carrying capacity, the weight of the cable will be reduced by half, and the cost will also be reduced. Of course, at the same time of high interception, the power loss of most insulating materials will also increase.