Electrical Cable
Electrical cables are power or signal transmission cables consisting of conductors, insulation, sheaths and other additional structures (e.g., shields, filler materials). Compared with ordinary wires, cables have a more complex structure, usually with higher resistance to pressure, temperature and interference, and are suitable for complex environments (e.g. underground, underwater, high temperature places).
Steel mills as a high energy consumption, high temperature, dust and the existence of strong mechanical stress of the industrial environment, the cable performance requirements are extremely demanding.
First, the characteristics of the steel plant environment and the requirements of the cable
High temperature environment:
Scene: steelmaking furnace, continuous casting machine, hot rolling area (temperature up to 200 ℃ ~ 800 ℃).
Requirements: high temperature resistance, flame retardant, heat radiation resistance.
Mechanical stress:
Scenario: crane, roller conveyor, mobile equipment.
Requirements: tensile, abrasion resistance, resistance to repeated bending.
Chemical corrosion:
Scenario: pickling workshop, cooling water treatment area.
Requirements: acid and alkali resistance, oil resistance, moisture resistance.
Electromagnetic interference
Scenario: near frequency converter, high power motor.
Requirements: high shielding effectiveness to avoid signal transmission interference.
Safety requirements
Scenario: Flammable and explosive areas (e.g. near gas pipelines).
Requirements: flame retardant, halogen-free and low smoke (reduce toxic gases in case of fire).
Our company provides products not only for metallurgical industry, but also used in electric power, coal, petroleum, chemical industry, construction, railway traffic, highway, communication and urban infrastructure, the main product specifications are as follows:
| Name | Product Model | Material Quality | Key Property | Key Parameter |
| Insulating Fireproof Cable | NG-A(BTLY) | On the basis of traditional refractory cable, fillers such as magnesium hydroxide, fireproof mud, white lime powder, ceramicized silicone rubber, etc., are added. Referring to the bending radius of ordinary force cable is 15-20D, after adding metal sheath and filler, the actual bending radius is larger and the weight is heavy. | Flexible: the conductor is made of multiple copper wires, and the copper sheath is made of corrugated copper tube structure.
Good fireproof performance: strong anti-corrosion, explosion resistance and wrinkled aluminum tube has quite good mechanical strength, compressive, tensile, anti-corrosion, explosion resistance; Environmental protection, long service life: inorganic materials are environmentally friendly and green, and the service life can reach more than 3 times that of ordinary cables |
The melting point of magnesium hydroxide can reach 2800℃; large current carrying and overload capacity: the long-term working temperature can reach 250℃, short time or very period overload temperature close to the melting point of copper 1083℃; |
| BTTZ | BTTZ cable is a copper core copper sheath magnesium oxide insulation heavy load fireproof cable (also known as heavy load mineral insulation cable), which is a new type of cable with seamless copper tube sheath as the outer layer, magnesium oxide crystal powder as the insulation material in the middle, and single copper rod as the conductor. | It has the characteristics of high temperature resistance, fireproof, explosion-proof, non-combustion, large current carrying capacity, small outer diameter, high mechanical strength and long service life, generally does not need independent grounding wire
The BTTZ cable itself does not burn completely. Even in the case of flame barbecue, as long as the flame temperature is lower than the melting point of copper, the cable can continue to be used without replacement after the flame is removed. In the case of flame barbecue, no toxic smoke and gas will be produced; |
When the line is overloaded, as long as the heat does not reach the melting point temperature of copper, the cable will not be damaged. After the overload is eliminated, the performance of the cable will not change and it can continue to be used normally.
It can run continuously for a long time at 250℃, and can also run for 30min in the limit state of 1000℃. It is suitable for steel mills, metallurgy and other enterprises |
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| YTTW | This kind of cable is composed of copper core conductor and outer sheath, and there is a layer of fireproof layer outside, so it has high fire performance. Copper conductor, mica tape, glass fiber, rolled copper sheath, low smoke halogen free outer sheath. | It does not need to be separately piped during laying, and has good functions of rodent prevention, ant prevention and radiation prevention, which can ensure the stability, long life and durability of cables. The working temperature is low, the line loss is small, the overload resistance is strong, the service life is long and the safety is high. | The cable has excellent temperature and fire resistance. It is suitable for high-temperature environments, capable of withstanding combustion for over three hours even at 950 degrees Celsius. The cable’s bending radius ranges from 6 to 20 D. The highly compacted insulation material in the cable and the specially sealed cable terminations prevent steam, gases, and flames from entering electrical equipment connected to the cable. Therefore, it is applicable for use in areas with explosion hazards and for wiring various explosion-proof devices and equipment. | |
| BBTRZ | Add filler to the traditional refractory cable, such as magnesium hydroxide, fireproof mud, white lime powder, ceramicized silicone rubber and so on. | Referring to the bending radius of ordinary force cable is 15-20D, the actual bending radius is larger after adding metal sheath and filling, and the weight is heavy. Fire resistance performance | 950℃ The flame was continuously powered for 18Omin without breakdown   650℃ After 15min under flame, it can withstand 15min water spray without being penetrated;
950℃ Under the flame, it can withstand 15min of impact vibration without breakdown; |
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| Fire-Proof Cable | RTTZ | Using multi-strand copper stranded wire, the insulation is mechanically wrapped with high-temperature resistant synthetic mica tape. The outer layer of the insulation is densely filled with alkali-free glass fiber. The sheath is formed by longitudinally wrapping copper tape and then welding it into a copper tube, followed by continuous rolling to form corrugations. For specific requirements where the metal sheath cannot be exposed, an additional layer of polyolefin (low-smoke halogen-free) sheath can be added on the outside | Continuous length is long: whether it is a single core or multi-core cable, its length can meet the power supply length requirements, each continuous length can reach more than 1000m;
High corrosion resistance: good shielding performance, copper sheath has good corrosion resistance, in special or corrosive environment for copper, a low smoke halogen free or plastic outer layer should be added to the copper sheath. Under the shielding of copper sheath, there is no electromagnetic interference, which will not interfere with the information transmitted by signal and control cables. |
Copper conductor, mica tape, glass fiber, rolled copper sheath, low smoke halogen free outer sheath, cable bending radius is 6-20D: single core cable section can reach 630 square millimeters, multi-core cable can reach 150 square millimeters; |
| ZRC-YJV | 1. ZR-indicates flame retardant cable, flame retardant grade is divided into three categories: A, B and C, among which A is the highest flame retardant grade; ZR is generally seen
It is ZRC; ZRC or ZR is class C flame retardant, ZRB or ZB is class B flame retardant, and ZRA or ZA is class A flame retardant; 2. YJ-Crosslinked polyethylene insulation 3. V-PVC sheath |
When using ZR-YJV cable, the appropriate flame retardant grade should be selected according to the specific occasion to ensure that the cable has good fire resistance. |
ZR-YJV cable is not suitable for outdoor, overhead and underground direct burial laying, the laying environment should be above 0℃ |
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| NH-YJV | Fire-resistant cable, it is made of cross-linked polyethylene as the insulating material and has a PVC sheath | The characteristics of this kind of cable include high temperature resistance, corrosion resistance and excellent electrical performance. It can maintain the operation for a certain time in case of fire, that is, to maintain the integrity of the circuit and have a certain time of power supply capacity. | It is suitable for indoor, tunnel and pipeline laying, and can withstand a certain amount of laying traction, but it should be noted that the cable cannot withstand external force, single-core cable is not allowed to lay in magnetic material pipelines, NH-YJV cable is widely used in power, construction, industry and municipal fields, | |
| WDZN-YJY | The full name of low smoke halogen-free flame retardant cable is copper conductor cross-linked polyethylene insulated halogen-free low smoke flame retardant fire-resistant polyolefin sheathed power cable, in which WD represents halogen-free and low smoke, Z represents flame retardant, N represents fire-resistant, YJ represents cross-linked polyvinyl chloride, and Y represents polyethylene. | Low smoke halogen-free flame retardant cable is difficult to ignite and has the ability to prevent or spread, and once it is on fire, it has the characteristics of halogen-free, low smoke, non-toxic, no corrosion and so on. | Low smoke halogen free flame retardant cable is suitable for power lines with rated voltage of 0.6/1KV and below for power transmission. It is suitable for high-rise buildings, hotels, hospitals, subways, nuclear power plants, tunnels, power plants, mines, petroleum, chemical and so on. | |
| Cables And Wires | YJLV22 | The full name of power cable is “aluminum core cross-linked polyethylene insulated steel tape armored PVC sheathed power cable”. In terms of structure, “YJ” represents cross-linked polyethylene insulation, “L” represents aluminum core, “V” represents PVC lining layer, and “22” represents steel tape armor and PVC sheath of the cable. | It is mainly used for temperature measurement, signal transmission and special heating because of its light weight, easy laying, affordable price and high cost performance | The rated voltage of this kind of cable is 0.6/1kV. This kind of cable is suitable for chemical industry, metallurgy, machinery manufacturing, power generation and scientific experiments, |
| KYJV/KVV | KYJV is a cross-linked polyethylene insulated control cable. Its construction material characteristic code is “KY”, where “K” means control cable, “YJ” means cross-linked polyethylene insulation, and “V” means PVC sheath |
The KYJV cable maintains the excellent electrical properties of the original KKV cable, and greatly improves the working temperature and practical performance. The full name of KYJV is copper core cross-linked polyethylene insulated polyvinyl chloride sheathed control cable, which has good temperature resistance and shielding performance. |
Rated voltage is 450/750V, widely used in engineering construction, steel, petroleum, chemical and other high requirements industries |
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| KYJVP | The characteristics of this cable include copper core, cross-linked polyethylene insulation, PVC sheath and copper wire woven shielding | This is a type of control cable that makes it suitable for specific electrical control applications | It is commonly used in electrical systems for buildings, industry and other applications, |