Qinli power cable manufacturing co., ltd. is a new high performance product mineral insulated fireproof cable, which is a true fire proof cable, its superior performance is superior to the traditional NH cable:
High temperature resistance and excellent fire resistance
The common wire and cable are organic materials because of insulation, so it is easy to carbonization under the flame condition to lose its insulation. Because the main materials of flexible mineral insulation fire cables are composed of mineral compounds, it does not cause fire, and can not be burned or combustion-supporting. These materials generally have a high melting point of 1500 ℃, so the fire protection cable can play normal transmission function even under the flame conditions, is a true fire protection cable. And can pass the bs6387c, w, z test.
The mineral insulated flexible fire prevention cable can achieve the combustion not short circuit, short circuit not, can operate normally in the sudden fire environment, save time, provide power support for rescue and start fire fighting equipment, reduce fire loss and casualties; Secondly, the conductive performance of tonghu is good, can be connected to the grounding wire, greatly improve the sensitivity and reliability of grounding protection.
Overload capacity
Mineral insulated flexible fireproof cable is not only carrying capacity, but also has strong line overload capacity, according to the relevant electrical design requirements, the surface temperature of the cable is not higher than 70 ℃, if there is no fuel, the long-term working temperature of the fire cable can reach 250 ℃.
Good bending properties
The traditional rigid fire prevention cable ( bttz ) is difficult to bend, the bending radius of the flexible fireproof cable is 6 ~ 10 times of the cable diameter, reduce the space of installation layout, reduce installation cost and easy to lay.
Anti irradiation, not
Mineral insulated flexible fireproof cable adopts inorganic mineral insulation material as insulation, compared with conventional organic insulation cable ( yjv, vv ) without irradiation, material will not aging, insulation characteristics will not change; At the same time, the cable outside protection is copper embossing, has excellent sealing, moisture-proof, anti-corrosion, cable service life can be more than 70 years.
High mechanical strength and prevent
The metal sheathed flexible fire retardant cable cable with aluminum metal layer has the effect of gewen, heat insulation, danghuo, water retaining effect, can also prevent damage to cable insulation in fire environment, and the cable can form solid shell at 350 ℃, effectively strengthening the protection function of cable.
Green environmental protection characteristic
Cable structure material is selected inorganic mineral materials, cables in the burning flame, do not release the smoke, do not release toxic gas; The abandoned cables can also be recycled and reused without polluting the natural environment.
Continuous production length
Due to the use of continuous mechanized production, no matter single or multi-core cable, its length can meet the power supply length, the continuous length can be more than 1000, without intermediate connection points, greatly reducing the safety hazards caused by connection points of engineering lines.
Reduce investment costs for users
Metal sheath mineral insulated flexible fireproof cable has less direct procurement cost than traditional rigid fire cable ( bttz ), and has higher cost-effective products. Tonghu can be used for grounding wire grounding, can use 4 cores instead of 5 cores ( yjv ) cable, the price difference is greatly reduced. The metal thread jacket has a certain zi capacity, can be directly laid, eliminating the installation accessories such as Through tube, bridge, and greatly save installation cost.