General electric wires and cables are insulated with plastic and rubber sheaths. These materials are conventional engineering materials with abundant sources, which can meet the requirements of mass production and relatively low cost.But for some special industries such as petrochemical, steel, aerospace, shipbuilding, war industry, pharmaceutical, food, plastics machinery, boilers and other industries related to the heat and high temperature, which need to be able to bear certain high temperature wire and cable, ordinary wire and cable obviously cannot used, that needs to be capable of high temperature wire and cable to ensure the safe operation of the power and signal.
Conductor material: multi-strand soft copper conductor;
Insulation material: fluoroplastic insulation, temperature range -60-260 degrees;
Filling material: glass fiber;
Jacket material: fluoroplastic jacket, temperature range -60-260 degrees
Heat 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 normally transmit signals or electric energy under high temperature for a long time.The other is the power transmission cable, mainly to increase the closure capacity for the main purpose.
Cable operating in high temperature environment.Ordinary cable in high temperature insulation aging and burning phenomenon easy to occur, the use of the cable lost performance, damage and can not be used.The high temperature cable can work normally and stably at rated high temperature, the signal or power transmission performance is not affected, and the long service life of the cable is guaranteed.This kind of functional cable is the most common type of high temperature cable, and its usage characteristics are the easiest to understand.
Increased load type high temperature cable, mainly in order to ensure the current under the premise of reducing the cable diameter and weight, towards the lightweight development.Generally speaking, the higher the working temperature of the cable, the greater the carrying capacity of the cable with the same section.In places like airplanes and automobiles, weight reduction is significant, and the use of high temperature cables greatly reduces the cross section.When the operating temperature rises from 90℃ to 155℃, the current-carrying capacity increases by 50%. Similarly, the cable weight is reduced by half and the cost is also reduced.Of course, with high closure, the power loss of most insulating materials will also increase