7-stranded steel core aluminum stranded wire crimping method for round wire concentric lay overhead electrical stranded conductor
A steel-cored aluminum stranded wire and overhead wire technology, applied in the direction of conductive connection, connection, electrical component connection, etc., can solve problems such as undervoltage, overvoltage, and heat generation
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Embodiment 1
[0262] Embodiment 1: as Figure 1-15 As shown, a crimping structure of 7 twisted steel-cored aluminum stranded wires with round concentric stranded overhead conductors, including an aluminum connecting tube 1, a steel connecting tube 2, a steel core connecting embedded aluminum tube 3, an inner embedded layer aluminum tube 4, an outer Embedded aluminum tube 5 and wire qualitative ring 6, steel core connecting embedded aluminum tube 3 is sleeved on two butt-joined steel strands 7, steel connecting sleeve 2 is connected to the outside of steel core connecting embedded aluminum tube 3, crimping steel connecting The pipe sleeve 2 enables the steel core to be connected to the embedded aluminum tube 3 to closely fit the steel strand 3 to form a steel strand crimping joint; the inner embedded aluminum tube 4 is placed on the steel strand 7 that is connected to each end of the steel core aluminum strand and the inner Between the layers of aluminum stranded wires 8, the outer casing of...
Embodiment 2
[0266] Embodiment 2: A method for crimping seven stranded steel-cored aluminum stranded wires with concentric stranded overhead conductors of round wires, the method comprising the following steps:
[0267] 1) Cut off the aluminum strands of the steel-reinforced aluminum strands at both ends of the butt joint, and the length of the cut-off section at each end = the length of the steel connecting pipe / 2+20mm;
[0268] 2) Pull the two joints of the steel-cored aluminum stranded wire to 10 meters, put one end of the steel-reinforced aluminum stranded wire into the aluminum connection tube, and move the aluminum connection tube to a position that does not affect the next process;
[0269] 3) Insert one end of the steel-cored aluminum stranded wire into the outer embedded aluminum tube, the inner hole of the outer embedded aluminum tube is a stepped hole, and the large inner diameter end faces the joint, and the outer embedded aluminum tube is moved to a position that does not affec...
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