What Determines The Needs Of Heat-resistant And High-temperature Wire And Cable?

Heat-resistant and high-temperature wires and cables 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 transmit signals or power normally under high temperature for a long time;

The other is the power transmission cable, mainly to increase the interception capacity as the main purpose.

Cables that work in high temperature environments.

Ordinary cables are prone to insulation aging and scorch at high temperatures, and the used cables lose their performance and cannot be used due to damage.

The high-temperature cable can work normally and stably at rated high temperature, the signal or power transmission performance is not affected, and the cable has a long service life.

This type of functional cable is the most common type of high-temperature cable, and its use characteristics are also the easiest to understand.

The increased load type high temperature cable is mainly developed to reduce the outer diameter and weight of the cable under the premise of ensuring the current carrying. Generally speaking, the higher the working temperature of the cable, the greater the current-carrying capacity of the cable with the same cross-section. In occasions such as airplanes and automobiles, the significance of reducing weight is considerable,

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 increases by 50%. Under the same current carrying capacity, the weight of the cable is reduced by half, and the cost is also reduced. Of course, at the same time as the high current cutoff, the power loss of most insulating materials will also increase.