Folding type
Flame retardant rubber sheathed cable
1、 Use
This product is a series of mining rubber sheathed flexible cables. It is suitable for power connection of shearer and similar equipment with rated voltage uo / U of 1.9/3.3kv and below. It is mostly used in coal mines.
2、 Service conditions
The long-term allowable working temperature of the wire core is 65 ℃, and the minimum bending radius of the wire is 6 times of the cable diameter. Yellow sheathed cables shall not be exposed to sunlight for a long time.
Nuclear grade cable
Scope of application
·This product is applicable to control and signal connection cables used in control system network with rated voltage uo / U of 0.6/1kv in nuclear power plant.
·The allowable long-term working temperature of the cable conductor is 90 ℃, and the maximum temperature of the cable conductor during short circuit shall not exceed 250 ℃, and the duration shall not exceed 5 seconds.
·The ambient temperature during cable laying shall not be lower than 0 ℃.
·The allowable bending radius during cable laying is:
-The cable without armor shall not be less than 6 times of the cable diameter
-The cable with armor or copper tape shielding shall not be less than 12 times the cable diameter
-The flexible cable with shielding structure shall not be less than 6 times of the cable diameter.
·When the long-term allowable working temperature of the conductor is not greater than 90 ℃, the identification life of the cable shall not be less than 40 years.
·The finished cable shall meet the requirements of class a bunched combustion test specified in GB / t18380.3.
·Smoke density of finished cable: light transmittance shall not be less than 70%.
·Radiation resistance: 25 × 104Gy
·Halogen free: when non-metallic materials are burning, the acidity (expressed by pH value) of the escaping gas shall be greater than 4.3; Conductivity not greater than 10 μ S/mm。
Bare wire and bare conductor products
The main features of this kind of products are: pure conductor metal, no insulation and sheath layer, such as steel cored aluminum strand, copper aluminum bus bar, electric locomotive line, etc; The processing technology is mainly pressure processing, such as melting, calendering, drawing, stranding / compression stranding, etc; The products are mainly used in suburban, rural, user main line, switch cabinet, etc.
power cable
The products are mainly used for strong electric energy transmission in power generation, distribution, transmission, transformation and power supply lines, with large current (tens of amps to thousands of AMPS) and high voltage (220V to 500kV and above).
Communication cable and optical fiber
With the rapid development of the communication industry in the past 20 years, the products also have an amazing development speed. From simple telephone and telegraph cables in the past to thousands of pairs of telephone cables, coaxial cables, optical cables, data cables, and even combined communication cables. The structural size of this kind of products is usually small and uniform, and the manufacturing accuracy is high.
Electromagnetic wire (winding wire)
It is mainly used for various motors, instruments, etc.
Flexible fireproof cable
1. It has excellent fire resistance performance. The fire resistance rating not only meets the requirements of international gb12666.6a class 950 ℃ for 90min, but also meets the requirements of class a 650 ℃ for 3h, class B 750 ℃ for 3H and class C 950 ℃ for 3h specified in British bs6387-1994. At the same time, it can withstand water spray and mechanical impact during combustion.
2. The continuous length is long. Whether it is single core or multi-core cable, its length can meet the needs of power supply length, and the limit length can reach 2000m.
3. The section of single core cable with large section can reach 1000mm2, and the section of multi-core cable can reach 240mm2.
4. With flexibility, the cable can be coiled on the cable reel, its bending radius ≥ 20d, and D is the outer diameter of the cable.
5. When burning, it is smokeless and non-toxic. The insulation adopts inorganic material "non combustor", which will not produce any harmful gas and secondary pollution. It can be called an environmental protection and green product.
6. If the section capacity is too large, the cable not only has large section flow, but also has large overload capacity. According to the wiring requirements, usually the cable surface temperature is ≤ 70 ℃? If wiring is not accessible? And not in contact with combustible building materials? The temperature of cable sheath can reach 105 ℃. In case of overload, the allowable working temperature of fireproof cable can reach 250 ℃.
7. Corrosion resistant, organic insulated and fire-resistant cables sometimes need to wear plastic pipes or iron pipes. The plastic is easy to age and become brittle, and the iron pipes are easy to rust; The fireproof cable is a copper sheath, which does not need to pass through the pipe, and the copper sheath has good corrosion resistance.
8. There is no electromagnetic interference. When the fireproof cable is laid in the same shaft with signal, control and other wires and cables, the fireproof cable is shielded by copper sheath. It will not affect the signal? The information transmitted by control wires and cables causes interference.
9. Good safety. In addition to normal power supply in the flame, fire-proof cables can start fire-extinguishing equipment to reduce fire losses. At the same time, it is particularly reliable for personal safety. Its copper sheath is a good conductor and the best grounding wire, which is continuous to the full length of the cable, greatly improving the sensitivity and reliability of grounding protection.
10. Long service life, inorganic insulating material, high temperature resistance and not easy to aging. Its service life is many times longer than that of organic insulated cable?, Under normal working conditions, its service life can be equal to that of buildings.
11. Transportation and installation of flexible fireproof cables, including installation.
new product
Derivative / new products of wires and cables are mainly produced by adopting new materials, special materials, changing product structure, improving process requirements, or combining different kinds of products due to different application occasions, application requirements, convenience of equipment and reducing equipment cost.
Different materials are used, such as flame retardant cable, low smoke halogen-free / low smoke low halogen cable, anti termite, anti mouse cable, oil / cold / temperature resistant cable, etc
Change the product structure, such as fire-resistant cable, etc
Improve process requirements, such as medical cables, etc
Combined products such as OPGW, etc
It is convenient to install and reduce equipment cost, such as prefabricated branch cable, etc.
