Inorganic composite insulated fire-resistant cable (WTTEZ) has excellent fireproof performance, long production length, good bending performance and can completely replace BTTZ cable in performance. It has excellent high temperature resistance, fireproof performance, good bending performance, advanced technology, simple installation, double stability of electrical insulation and cable structure under high temperature ignition environment, and is incomparable with traditional mineral insulated cables. At the same time, WTTEZ cable has advanced manufacturing technology and simple installation. Under the same conditions, its comprehensive cost is significantly lower than that of mineral insulated cable (BTTZ).
Inorganic insulated cable performance characteristics:
1 fire and fire resistance is very good
In order to ensure the normal supply of the cable in the flame, that is, to keep the cable structure stable under fire conditions, in the cable structure design, a coating layer with refractory and expansion properties is added, and the coating layer is in flame condition and volume. Expansion makes the cable insulation structure more stable. Therefore, the cable can continue to supply power in the event of a fire close to the melting point of copper, which is a true fireproof cable.
2 continuous production length, large section, good bending performance
●Continuous production length is long
The production length of the cable is not limited by the processing technology and production equipment, and fully meets the power supply length. The longest can be produced to 2000 meters.
● Large cross section
The cable conductor is formed by stranding a plurality of single wires, which greatly increases the flexibility of the conductor, and the stranded conductor has good continuity of production, long processing length, and can reduce the number of joints, and the cross section of the single core cable can be large. Up to 800mm2.
●Good bending performance
The copper sheath is embossed to increase the flexibility of the cable and the bending performance is good.
3 large current capacity, waterproof
● Large current carrying capacity
When the cable is normal, the conductor temperature can reach 180 ° C. Under the premise of the same conductor cross section, the current carrying capacity far exceeds the conventional cable.
The cable is protected by a sealed non-magnetic metal tube and its water resistance is excellent.
4 with explosion-proof, anti-corrosion, no electromagnetic interference characteristics
Since the cable is made of copper sheath, and the cable is burned, the filling layer is expanded and compacted, and the combustible gas and flame cannot reach the electrical equipment connected to the cable, so the cable has explosion-proof characteristics.
●Good corrosion resistance
Because copper has good corrosion resistance, no additional protection is required in normal use environment. Under special environmental conditions, such as the environment with strong corrosive effect on copper, only a layer of low smoke is added outside the cable. The halogen-free outer protection can achieve corrosion resistance.
●No electromagnetic interference
Because the cable is laid under the shielding of the copper sheath, it will not interfere with the signal and control line when it is laid together with the information and control lines.