technical characteristics of refractory silicon rubber cable
from：guichao author：admin click： 307 addtime：2016-08-30 17:14:37
with the rapid growth of the population of the city, high-rise building, gaestgiveriet hotel, supermarkets, hospitals, railway stations, airports continue to increase, the construction of the subway, tunnel traffic, and the increase of large public sports, entertainment, public transportation, fire protection, fire safety and the importance of stand out. in case of fire, security power and communications in a certain period of time, the maximum gain valuable rescue time, reduce casualties and loss of life and property, it is people has been constantly exploring topic.
at present, most of the domestic and international use of the magnesium oxide mineral fire insulation cable and mica tape winding fire resistant cable.
because of the structure of the cable production need special processing equipment, coupled with the production of magnesium oxide mineral insulated cable fire prevention equipment not only need to import, but very expensive, too much capital investment; in addition, magnesium oxide fire mineral insulated cable outer sheath is full of copper, high cost, limited to a certain extent in practical applications; coupled with the cable sheath copper mineral magnesium oxide fire insulation special requirements in line production and processing, transportation, installation and use in the process of production and processing, such as magnesium oxide mineral insulated cable can not fire like polymer material that is convenient, installation is difficult, the high cost of raw materials, it is difficult to large-scale popularization. especially difficult in the civil building, promotion etc.. the mica tape winding fire-resistant cable, need multi-layer winding in the production process, due to process conditions, often caused by defects at the joints, after burning mica crisp, easy to fall off, also caused the fire effect is poor, which is difficult to ensure safe and smooth communication and power in case of fire.
silicone wire and cable are mainly used in harsh environment, high temperature environment. in fact, in my impression, silicone rubber cable is mainly used in refractory environment, there was a kind of silicone rubber is introduced: fire-resistant cable sheath and insulator after combustion, peroxide and 4 valence silicon to form silicon dioxide (like glass and ceramics), so as to achieve the normal work in the case of burning flame, and vibration experiment the spray machine and can withstand the british standard. in short, mineral insulated cables, silicone rubber cables, fluorine plastic cables are the main three types of fire resistant cable.
generally used as high temperature equipment connection line, also can be used as a high-temperature environment cable. main features:
a, has a high temperature resistance characteristics, up to 200c.
b, has better weather resistance.
c, good electrical insulation.