_{Mineral insulated cable, a cable with a copper conductor core wrapped in a copper sheath, and magnesium oxide powder as an inorganic insulating material to isolate the conductor and the sheath. The outermost layer can be selected with a suitable protective sheath as required. Commonly known as MICC or MI cable. There is a similar cable that uses metal instead of copper sheath to wrap the core wire and insulating material, called Mineral insulated metal sheathed cable (MIMS Cable)}

_{1. Standard}

_{Flexible mineral insulated cables: JS/GY002-2017 Inorganic mineral insulated flexible fireproof cables with rated voltages of 1KV and below.}

_{Rigid mineral insulated cable: GB/T 13033/ IEC 60702.}

_{2. Operating temperature and insulation material}

_{NG-A (BTLY): Double-sided mica tape + ceramic tape, up to 1300°C}

_{YTTW: using phlogopite tape, up to 950°C}

_{BBTRZ: using phlogopite tape + XLPE, up to 950°C}

_{BTTZ: Using magnesium oxide, it can reach 1000°C}

_{3. Model name and structure}

_{BBTRZ: Copper sheathed flexible mineral insulated cable, composed of copper stranded wire, mineral compound insulation, and mineral compound sheath}

_{BTTZ, BTTVZ, BTTYZ: corrugated metal sheathed mineral insulated cables, composed of solid copper rods, magnesium oxide insulation, and seamless copper tube sheaths}

_{YTTW, YTTWV, YTTWY: copper core corrugated tube sheathed mineral insulated cable, composed of copper stranded wire, fluoromica tape insulation, and copper tape longitudinally wrapped with continuous welding sheath}

_{BTLY, NG-A: Isolated flexible mineral insulated cable, composed of copper stranded wire, phlogopite tape insulation, seamless aluminum tube sheath, oxygen barrier filling, isolated refractory layer, and low-smoke halogen-free sheath}

_{HFTGB copper core ceramic insulated metal sheathed flexible mineral insulated fireproof cable}

_{FTGYZ Copper core metal sheathed flexible fireproof cable}

_{4. Core number specifications and cross-sectional area}

_{NG-A/BTLY: 1 core 10~300 mm2; 2, 3, 4, 5 core 2.5~300 mm2; 3+1, 3+2, 4+1 core 4~300 mm2.}

_{YTTW: 1 core 10~630mm2; 2, 3, 4 core 2.5~120mm2; 3+1 core 16~120 mm2.}

_{BBTRZ: 1 core 10~500 mm2; 2, 3, 4, 5 core 1.5~400 mm2; 3+1, 3+2, 4+1 core 4~400 mm2.}

_{BTTZ: 1 core 1.5~400mm2; 2, 3, 4 core 1.5~25mm2; 7, 10, 12 core 1.5~2.5mm2.}

_{5.Laying conditions}

_{Flexible mineral insulated cables: need to be protected by a closed bridge or through a pipe (YTTW can be covered, no bridge or through a pipe).}

_{Rigid mineral insulated cable: can be covered, without bridge or pipe.}