A crimping method for 19 stranded steel-cored aluminum stranded wires of round concentric stranded overhead conductors
A steel-cored aluminum stranded wire and overhead wire technology, applied in the direction of connection, circuit/collector parts, electrical components, etc., can solve problems such as heat generation, joint holding force not meeting standard requirements, and increased contact resistance at the crimping point.
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Embodiment 1
[0266] Embodiment 1: as Figure 1-15 As shown, a crimping structure of 19 stranded steel-cored aluminum stranded wires with round concentric stranded overhead conductors, including an aluminum connection tube 1, a steel connection tube 2, a steel core connection embedded aluminum tube 3, an inner embedded layer aluminum tube 4, an outer The embedded aluminum tube 5 and the wire setting ring 6, the steel core connecting embedded aluminum tube 3 is sleeved on the two butt-connected steel strands 7, the steel connecting tube 2 is sleeved outside the steel core connecting embedded aluminum tube 3, and the steel core connecting embedded tube 3 is crimped 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 alum...
Embodiment 2
[0270] Embodiment 2: A method for crimping 19 stranded steel-cored aluminum stranded wires of round concentric stranded overhead conductors, the method comprising the following steps:
[0271] 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;
[0272] 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;
[0273] 3) Put the steel-cored aluminum stranded wire at one end 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 is connected to this end, and the outer embedded aluminum tube is moved to a position that does not affect the ne...
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