What is aluminum alloy cable?

Aluminum alloy power cable is a new type of power cable made of AA8030 series aluminum alloy material as conductor, adopting special roll-forming wire stranding production process and annealing treatment and other advanced technologies. The aluminum alloy power cable makes up for the deficiency of the previous pure aluminum cable. Although it does not improve the electrical conductivity of the cable, the bending performance, creep resistance and corrosion resistance of the cable are greatly improved, which can ensure the continuous and stable performance of the cable in case of long-term overload and overheating. The use of AA-8030 series aluminum alloy conductor can greatly improve the electrical conductivity and high temperature resistance of the aluminum alloy cable, and solve the problem of pure aluminum conductor Creep and other problems.

Applicable scope of aluminum alloy cable

The good mechanical and electrical properties of aluminum alloy power cable make it widely used in various fields of the national economy, such as ordinary residential buildings, high-rise buildings, elevators, large and small supermarkets and malls, subways, airports, stations, hospitals, banks, office buildings, guest hotels, post and telecommunications buildings, exhibition halls, libraries, museums, ancient buildings, schools, power buildings, public entertainment places, tunnels Underground buildings and warehouses can also be used in metallurgy, steel, coke, coal mines, power plants, transmission and transformation power stations, shipbuilding, petroleum, chemical industry, medicine, nuclear power stations, aerospace, military, paper and other industries, as well as household appliances, automobiles, public transport facilities, etc.

What are the specifications and models of aluminum alloy cables

1. Basic type: Model representation: YJLHBV/YJLHV/YJLHV. Description: XLPE insulated PVC aluminum alloy core power cable sheath. Purpose: It is laid on indoor, pipeline, tunnel and cable bridge to replace copper cable VV and YJV type cable.    2. Steel armor type:Model: YJLHBV22/No such model/No YJLHV22.  Description: XLPE insulated steel tape armored PVC aluminum alloy core power cable sheath.  Purpose: It is mainly used for underground direct burial and can withstand specific side pressure, replacing VV22 and YJV22 cables.  3. Unsheathed interlocking armor:  Model representation: YJLHB90/YJLHV60/YJLHS.  Description: Cross-linked polyethylene (XLPE) aluminum alloy core power cable with non-sheathed insulation and polyaluminum alloy interlocking armor.  Purpose: laid overhead or along the wall, installed on the bracket or hook, with good side pressure capacity, non-magnetic material, can effectively avoid eddy current effect, can avoid bridge installation, is not suitable for buried laying, and replace VV and YJV cables. 4. Interlocking armor with sheath type:  Model representation: YJLHB92/YJLHV62/YJLHVS2.  Description: XLPE insulated aluminum alloy interlocking armored PVC aluminum alloy core power cable sheath.  Purpose: High flexible aluminum alloy interlocking armor has good lateral pressure resistance and sealing and moisture-proof effect, mainly used for direct burial, cable trench, tunnel, etc. VV22 and YJV22 cables.  The specifications and models of aluminum alloy cables commonly used in China include YJHLV (TC90), YJHLV8 (AC90), YJHLV82 (ACWU90, YJHLV22, YJHLY83, etc. The specifications and models of aluminum alloy cables commonly used abroad include AC90, SER, SEU, RWU90, MC, UD-1350, UD-8000, MHF, XHHW-2, etc.  YJHLV (TC90) aluminum alloy cable, namely: cross-linked polyethylene insulated PVC sheathed aluminum alloy power cable, is a non-armored alloy cable;  YJHLV8 (AC90) aluminum alloy cable, namely, cross-linked polyethylene insulated aluminum alloy belt interlocking armored aluminum alloy power cable, is a flexible self-locking aluminum alloy cable;  YJHLV82 (ACWU90) aluminum alloy cable, that is, cross-linked polyethylene insulated aluminum alloy belt interlocking armored PVC sheathed aluminum alloy power cable, is a flexible self-locking aluminum sheathed alloy cable;  YJHLV22 aluminum alloy cable, namely: cross-linked polyethylene insulated steel tape armored PVC sheathed aluminum alloy power cable, the armor layer uses high-strength double steel tape armor; YJHLY83 aluminum alloy cable, namely, cross-linked polyethylene insulated aluminum alloy belt interlocking armored polyolefin sheathed aluminum alloy power cable, is a halogen-free and low-smoke self-locking aluminum armored alloy cable.  4、 What are the advantages of aluminum alloy cable.1. Anti-creep.The aluminum alloy conductor material and process reduce the creep tendency under hot pressing. Unlike pure aluminum, the creep resistance increases by 300%, avoiding the relaxation problem caused by cold flow or creep.    2. Tensile strength and elongation.Compared with pure aluminum conductor, aluminum alloy conductor has greatly improved its tensile strength due to the addition of special parts and special processing technology, with elongation of 30%, flexibility of 33% and low elasticity of 40%, which is safer and more reliable.    3. Coefficient of thermal expansion.The coefficient of thermal expansion is generally used to calculate the size change of materials after temperature change. Aluminum has the same thermal expansion coefficient as copper, and aluminum connectors have been used in copper and aluminum conductors.    4. Connectivity performance.The electrical connection of aluminum alloy is as safe and reliable as that of copper conductor. The structure of aluminum alloy greatly improves the connection performance. When the conductor is annealed, the added iron has high creep resistance, which can ensure reliable connection even under long-term overload.    5. Strong self-bearing capacity.The aluminum alloy improves the tensile strength. The aluminum alloy cable can support 4000 meters of dead weight, while the copper cable can only support 2750 meters. This advantage is particularly evident in the wiring of large buildings such as stadiums and gymnasiums.