1 .Fire-proof performance is excellent, fire-resistant grade can not only meet the national standard GB/T 19216-21 A 950 C.90 min (BS6387:2013 C 950 C. 3 h requirements), but also can withstand water spraying and mechanical impact in combustion. 2 .Continuous length, whether single core or multi-core cable, can meet the needs of power supply length, the limit length can reach 2000m. 3 .The cross-section of single-core cable is large, and the cross-section of single-core cable can reach 1000 mm2, and that of multi-core cable can reach 240 mm2. 4 .The overload capacity is large, the cable not only has a large carrying capacity, but also has a large overload capacity. According to the wiring requirements, the surface temperature of the cable is usually less than 70 C. If the wiring is not touched or contacted with flammable building materials, the temperature of cable sheath can reach 105 C. and the allowable working temperature of fire-proof cable can reach 250 C when it is cut off. 5 .No electromagnetic interference, fire-proof cables and signals, control cables are laid in the same shaft. When the fire-proof cables are shielded by copper sheath, they will not interfere with the information transmitted by signals and control cables. 6 .The cost of flexible fire-proof cables is lower than that of mineral insulated cables under the same conditions because of its advanced fabrication technology and simple installation.