Using aluminum as the main material to extrude metal tubes instead of copper tube drawing not only simplifies the process and improves the efficiency, but also greatly reduces the product cost (aluminum is only 1/10 of the comprehensive cost of copper).

The reason why the aluminum tube can replace the copper tube and not melt under the high temperature flame is due to the expanded refractory layer extruded by the aluminum tube: the expanded layer foams and solidifies under the flame attack, forming a thick barrier

Direct injection of flame to aluminum tube. Not only the integrity of the aluminum tube is preserved, but also the heating temperature of the mica belt is reduced to below 600℃, and the stability of the insulation of the mica belt is undoubtedly improved (cloud

The insulation resistance of the master tape increases with the decrease of temperature).

Since all the materials of this cable are inorganic materials, it has some advantages that other cables cannot have. Such as fire prevention, large carrying capacity, resistance to mechanical damage, no

Halogen non-toxic, explosion-proof, waterproof, corrosion resistance, long life, safety, overload resistance, high temperature resistance, low cost, small bending radius, anti-ant, anti-rodent bite, copper sheath as a protective grounding wire.

NDZAN-BTLY (NG-A) series isolated type (flexible) mineral insulated refractory cable production process used in the metal sleeve continuous forming process allows a single cable continuous production length can meet customer requirements, so that the whole cable without joint whole tray delivery. During installation, it can be laid in whole section and no pipe is needed.