Rare Earth Al-alloy Power Cable
Product Description
SAFETY FEATURES
Anti-creeping feature of pure Al is weak. During long-term operation, the gaps, which will cause increasing of contact resistance between conductors, will appear due to thermal-cooling cycle. The contact point is easy to generate heat and it is not safety for long-term operation. The problems could be solved effectively through high conductivity alloy conductor.
1, Trend of creepage is largely minimized account for heat and press of material due to special conductor formula and heat treatment technology. Even overheat and overloading happen on cable within long time, it could keep the stability of connection. This has been proved to effective through long-term operation in large amount of labs and in Europe and America Countries.
2, Special arched interlocking armoring structure of interlocking armored cable has excellent feature of dispersing the side pressure. Adopting the 5000 series high-strength Al-alloy metal tape, which is non-magnetic material and does not form eddy current loss. The material has better performances as heat dissipation, anti-corrosion, strong and toughness, flexibility, smooth armoring inside, without damage to insulation, better shield and flame-retardant.
3, Al-alloy cable is equipped with various connection and services as copper and Al accessories. It eliminates the electrical and chemical corrosion among connections of different metals. Oxidation of metal surface causes large resistance. It simplifies installation and safe to be used.
Al-alloy cable is light and replaces 50% of equivalent cable. Length of alloy cable is 2 times of copper cable with the same quality. For spanning buildings, it can save 15% steel structure. Smaller loads could improve the safety of the building.
Conductivity Feature
Compare the cable with same specification, conductivity of alloy conductor manufactured by Sinyu company is 62.5% of normal international annealed copper standard (IACS). However, the actual weight of Al is one third of copper with the same volume. According to the calculation, at the premise of meeting requirements of same conductivity, length of alloy cable with the same weight is two times of copper cable. Therefore, the weight of alloy cable is half of copper cable under the same current rating. When the cross section of alloy cable is 1.5 times of copper conductor, the electrical performance is nearly the same. Cable weight could be minimized through alloy cable instead of copper cable. It could reduce the installation cost, minimize abrasion of equipment and cable and it is easy to be installed.
Anti-creepage Feature
Trend of creepage of metal under heat and pressure is greatly minimized through special alloy formula and heat treatment technology. Stability of Electrical connection by high conductivity alloy conductor is the same as copper conductor.
Thermal Expansion Coefficient
Thermal expansion coefficient is used to calculate the dimension change of material under temp variation. The thermal expansion coefficient of alloy cable is slightly higher than copper. It has more expansion and shrinkage than copper under change of same temperature.
We recommend using Copper-Al transit connector that connects the high-conductivity alloyed conductor. It has passed 1000 times thermal cycling test specified in GB 9327 (IEC 61238) standard. Reliability of electrical connection is proved. And, it completely solves problems of thermal expansion and copper-Al electrical and chemical corrosion at the connecting point of two kinds of metals by Copper-Al transit connector.
Sinyu cable group Co., Ltd. is a specialized enterprise group on manufacture, sales, R&D and service, now having 560 staffs, covers a land area of 186, 000m2 and construction area of 112, 000m2, with total assets of USD70 million. Company has production and detect equipments 433 sets with annual production of 220, 000km. To ensure quality and enterprise Technological innovation has been in front, we imported international advanced level of production and inspection facilities from TROESTER Germany and other companies.
Company key new product including more than 10 large class, more than 500 types and more than 10, 000 specifications are widely used in metallurgy, electricity, oil, chemicals, military, space, traffic, ships, coal and railway industries, proprietary and cooperation with foreign trade, exports to countries and regions of central Asia, Africa, the Middle East.
Sinyu cable group have founded efficient quality management and quality insurance system, passed IS09001, IS014001, OHSAS18001, IS010012, CCC, CE, BV and other certificates as customers requirement. And we also have 6 utility model patents, won customer's appreciate by high-quality products and circumspect service. Now we establish loud term relationships with scientific research units for the company's talent training and technical innovation has created favorable conditions for sustained, healthy, rapid business development of the foundation.
