What Does The Mica Tape in The Cable Do

Refractory mica tape, referred to as mica tape, is a kind of refractory insulating material, which can be divided into refractory mica tape for motors and refractory mica tape for refractory cables. According to the structure, it is divided into: double-sided belt, single-sided belt, three-in-one belt, double membrane belt, single membrane belt, etc. According to mica, it can be divided into: synthetic mica belt, phlogopite belt, and muscovite belt

1. There are three kinds of mica tape, their respective quality performance is the best synthetic mica, the worst muscovite, for small specifications of the cable must be selected synthetic mica tape for wrapping, the Yangtze River cable Xiaobian reminds everyone that mica tape can not be used in layers, long-term storage of mica tape is easy to absorb moisture, so the temperature and humidity of the surrounding environment must be considered when storing mica tape.

2. When the fire-resistant cable is selected mica tape wrapping equipment, it should be used with good stability performance, the wrapping angle is best in 300-400 wrapping, the mica tape wrapping is uniform and tight, all the guide wheels and rods that touch with the equipment must be smooth, the wiring is neat, the tension is not too large, and the side plate and cylinder of the take-up tooling wheel are flat and smooth.

3. For the circular core with axial symmetry, the mica tape is tight in all directions after wrapping, so the conductor structure of the fire-resistant cable should be used round compacted conductor.

Fire-resistant mica tape for fire-resistant cable is a high-performance mica insulating product with excellent high temperature resistance and combustion resistance.

Powder mica tape has good flexibility under normal conditions, and is suitable for the main fire-resistant insulation layer in various fire-resistant cables. There is basically no volatilization of harmful smoke when burned by an open flame, so the product is not only effective but also safe for cables.

How to fire resistant cable mica tape insulation is the characteristics of mica.

The main function of the mica tape in the fire-resistant cable is: first, to protect the inside of the cable from external high temperature for a certain period of time, and second, to make the cable at high temperature, other insulation, protective materials are all damaged in the case of mica can still rely on mica to have a certain insulation performance (the premise is not to touch, because the insulation structure may be composed of ash).