Popularization of model names and commonalities of mineral insulated cables

There are many specifications for mineral insulated cables. Next, Jinhaotai wire and cable small series distinguishes the rigid and flexible mineral insulated cables by the structure of the conductors. See what advantages the rigid mineral insulated cables have in addition to their own stiffness. Flexible mineral insulated cables. What is its impact resistance?
Jinhaotai mineral insulated cable
First, the naming code
B--mineral insulated cable for wiring, mineral insulated cable for T--wiring, L--aluminum metal sleeve, Y--polyvinyl chloride outer sheath, Z--voltage withstand class heavy duty 750V
Second, the core number specifications and cross-sectional area comparison
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.
Third, the implementation of standards
Flexible mineral insulated cable: JS/GY002-2017 inorganic mineral insulated flexible fireproof cable with rated voltage of 1KV and below
Rigid mineral insulated cable: national standard / international standard GB/T 13033 / IEC 60702
Fourth, working temperature and insulation materials
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, up to 1000 ° C
Fifth, laying conditions
Flexible mineral insulated cable: need to be closed bridge or pipe protection (YTTW can be applied without bridge or pipe)
Rigid mineral insulated cable: can be applied without bridge or tube
Sixth, model name and structure
BBTRZ: Copper sheathed flexible mineral insulated cable consisting of copper stranded wire, mineral compound insulation, mineral compound sheath
BTTZ, BTTVZ, BTTYZ: embossed metal sheathed mineral insulated cable, consisting of solid copper rod, magnesium oxide insulation, seamless copper tube sheath
YTTW, YTTWV, YTTWY: copper core embossed tube sheathed mineral insulated cable, consisting of copper stranded wire, fluorine mica tape insulation, copper strip longitudinally wrapped continuous welded sheath
BTLY, NG-A: isolated flexible mineral insulated cable, consisting of copper stranded wire, phlogopite tape insulation, seamless aluminum tube sheath, oxygen barrier layer filling, insulation refractory layer, low-smoke halogen-free jacket
Seven, common ground
After the above comparison, I believe that everyone has a deeper understanding of mineral insulated cables, and mineral insulated cables have in common: inorganic mineral insulation is reliable, waterproof, anti-rat ants, high mechanical strength, corrosion resistance, energy saving and environmental protection, radiation protection Long life, etc.

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February 21, 2020