2. The company is developing projects.
(1) high voltage, high power/ultra-high power variable frequency motor cable This product has excellent shielding performance and good electromagnetic compatibility, and keeps the electric field balanced to make the potential tend to be gentle. Excellent grounding conductivity, yoke current conductivity and safe and reliable contact protection function; The overall shielding effect is good (it can filter out the magnetic field generated by single-core cable), and it has the effects of flame retardant, insect prevention and mechanical protection. Among them, the three-phase cable conductor split-phase shielding technology further balances the electric field and minimizes the axial current, which is not only conducive to prolonging the service life of the motor, but also to improving the product precision and ensuring the quality. In addition, the conductance of the shielding section is greater than or equal to 50% of the conductance of the single-phase conductor, and grounding at both ends can effectively avoid the harm of overload current; Ensure the safety and integrity of cables under overload and short circuit conditions. The excellent design structure of the product and the selection of high-quality materials will ensure that the system will not have current or voltage resonance when the cable is at the maximum allowable length, and ensure the safe and reliable operation of the system. Products can be widely used in high-voltage, high-power and ultra-high-power frequency conversion speed regulation systems in petrochemical, metallurgical, papermaking and other industries.
(2) Cable products for wind power generation have excellent suspension and torsion performance at normal temperature and low temperature, which can improve the reliability of fan system and prolong its service life; It has strong flexibility and recoverability, and fully meets the performance requirements of flexible reversible fans for cables; It has good tensile, anti-twisting and anti-bending properties, can be bent and twisted at will at the ambient temperature of -45℃ ~+ 1 10℃, does not crack, and is oil-resistant, wear-resistant, acid-base corrosion-resistant, flame-retardant and ultraviolet-resistant. It is especially suitable for long-term use in places with harsh environment, low temperature and serious wear, and can be widely used in various wind power generation equipment.
(3) Special transmission cable for urban underground power grid With the rapid development of national economy, the need of modern city construction and the need of improving people's quality of life, the state advocates "better life in the city", and spider-web overhead wires and cables are turning underground, which is the general trend. In order to adapt to the coming big market, the company is developing a special transmission and distribution cable for urban underground power grid, which is characterized by: it can be soaked in underground water for a long time without puncturing the water tree cable, and its service life is safe and reliable; Buried underground can prevent rodents, ants and so on. Prevent cable short circuit and other faults caused by biting; It can be laid in the form of trench, tunnel, direct burial, etc., which can adapt to the laying of underground power grid in any hydrogeological city; Wires and cables with qualified voltage levels.
(4) New long mineral insulated fire-resistant cables, from civilian to industrial cables, minimizing the possibility of fire caused by wires and cables has always been a key concern of the industry. The Fire Department of the Ministry of Public Security stipulates that all new high-rise buildings must use flame-retardant wires and cables, and special emergency power supply should use fire-resistant wires and cables, especially in special occasions of fire prevention. Various types of cables have been developed at home and abroad, such as flame-retardant cables, oxygen-insulated cables, fire-resistant cables, low-smoke halogen-free flame-retardant cables and so on. , but they all have certain limitations. The mineral insulated fireproof cable developed this time is a kind of cable completely composed of inorganic substances, which will not burn, will not help combustion, is non-toxic and smokeless, and can continuously supply power for more than 3 hours in a fire with a temperature as high as 1000 degrees Celsius. It is the cable with the best fire resistance so far. This product has advanced production technology, can give full play to metal plasticity for continuous production and long-length production, and avoids a series of unfavorable factors that may be brought by intermediate joints, which is a new direction of fireproof cable manufacturing technology. The product adopts advanced extrusion process and high frequency induction annealing process, which greatly enhances the plastic deformation ability of metal, not only reduces the annealing times and time, but also improves the thermal power, with obvious energy saving effect. Compared with the traditional production process of fire-resistant cable drawing, this project has obvious advantages, advanced and reasonable process route, perfect and scientific process design and perfect equipment capacity and function configuration, which can realize the manufacture of long-length fire-resistant cables.
(5) High-flame-retardant and environmentally-friendly mine cables include cables for mines and tunnels, and cables for various mechanical equipment for mines. There are two kinds of fixed laying and movable laying, and their similarities are: good mechanical protection, reliable compression, tensile and wear resistance, good flame retardancy, high oxygen index of protective layer, and good oxygen isolation function in protective layer structure. In addition to the above requirements, mobile cables should also have good flexibility, wear resistance and anti-static accumulation function to avoid serious disasters caused by friction sparks. The research and development of this cable is of great significance to the protection of miners' personal safety and national property.