Mineral Insulated Cable

At present, China's common 3 types of fireproof cable
Copper core copper sheathed magnesium oxide insulated cable: it is composed of solid copper rod, magnesium oxide insulation and seamless copper pipe sheath. (without outer sheath BTTZ, BTTQ, with outer sheath BTTVZ, BTTVQ, WD-BTTYZ)

Flexible inorganic mica with mineral insulation cable: it is composed of copper stranded wire, fluorine mica with insulation and copper belt with longitudinal wrapped continuous welding sheath. (without outer sheath YTTW, RTTZ, with outer sheath YTTWV, WD-YTTWY, RTTZV, WR-RTTZY, BTTW, BTTRZ).

Flexible isolation type aluminum sheath mineral insulation cable (NG-A, BTLY) : it is composed of copper strand, gold mica tape insulation, seamless aluminum tube sheath, oxygen insulation layer filling, isolation refractory layer, low smoke halogen-free sheath.