Expansion wire LGKK-900mm2 model heat-resistant aluminum alloy expansion wire specification

Description :

　　Expansion conductor LGKK-900mm2 model heat-resistant aluminum alloy expansion conductor specification substation transmission transformer

　　The purpose of the extension wire;

　　Expanded diameter conductor, also known as expanded diameter conductor, is used in power engineering

　　According to the structural characteristics of expanded diameter wires, they are divided into four categories: large inner diameter aluminum tube supported expanded diameter wires, small inner diameter aluminum tube filled expanded diameter wires, sparse twisted expanded diameter wires, and high-density polyethylene supported expanded diameter wires.

　　Small inner diameter aluminum tube filled expanded diameter wire. This type of expanded diameter wire is made by twisting multiple small inner diameter aluminum tubes (instead of aluminum single wires) outside the steel core. Large inner diameter aluminum tube supported expanded diameter wire. This type of expanded diameter wire has no steel core and is made by twisting multiple layers of aluminum single wires on a large inner diameter aluminum tube. Sparse twisted expanded diameter wire, high-density polyethylene supported expanded diameter wire.

　　Characteristics of extended conductors;

　　 Expanded diameter wire（ expanded diamAn eter conductor refers to a wire with an enlarged outer diameter compared to a concentric stranded wire with a similar cross-section. There are many types of expanded diameter conductors with significant structural differences, but they can be divided into two categories based on their use: for substations and for transmission lines. Expanded diameter wires have the following characteristics:(1) Compared with conventional wires of the same cross-section, the outer diameter of the expanded wire increases, the corona loss decreases, and the radio interference and audible noise derived from corona also decrease, effectively improving the electromagnetic environment and benefiting environmental protection. (2) Compared with conventional wires with the same outer diameter, the aluminum cross-section of the expanded wire is reduced, saving aluminum material and reducing the weight of the wire. This not only reduces the amount of wire used, but also reduces the steel consumption of the tower due to the decrease in tower load, thereby reducing the investment in transmission line engineering. (3) Compared with conventional wires with the same outer diameter, expanded diameter wires have the same corona characteristics due to the same outer diameter of the wires.

　　The expanded diameter wire comprises a support layer, an inner layer, an adjacent outer layer, and an outer layer in sequence from inside to outside. The support layer is a galvanized hose, and the inner layer is composed of multiple tightly arranged galvanized steel wires and multiple tightly arranged aluminum single wires tightly arranged and twisted together. The adjacent outer layer and the outer layer are respectively composed of multiple tightly arranged aluminum single wires twisted together. The diameter of the aluminum single wires in the inner layer, adjacent outer layer, and outer layer is the same The expanded diameter wire provided by this utility model enlarges the outer diameter of the wire, reduces the corona loss of the wire, enhances the radial voltage resistance and longitudinal flexibility of the wire, improves the wire's current interception, reduces labor intensity, and saves production costs

　　Expanded diameter wire is a new type of special wire developed on the basis of ordinary steel core aluminum stranded wire. It is composed of hundreds of aluminum steel wire cores and a special metal hose. Its finished outer diameter reaches over 50mm, making it the largest overhead wire with a larger outer diameter so far.

　　LGKK-900 expanded diameter conductor, widely used in substation projects above 220kv-1000kv, with complete product specifications, can meet all the needs of various specifications of special conductors (flexible busbars) for converter stations in substations in China. This series of products has been successfully operated in multiple 500kV, 800kV, 750kV, and 1000kV substations and power plants in China, achieving good operational performance. No need for any special tools, fixtures, easy installation and maintenance, low cost. LGKK-900mm2 heat-resistant aluminum alloy expansion wire manufacturer

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