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What are the use characteristics of aluminum alloy overhead strands?

What are the use characteristics of aluminum alloy overhead strands?

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  • Time of issue:2021-12-27
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(Summary description)In the aluminum alloy overhead stranded wire, any round aluminum wire is not allowed to join. The exception is the connector on the front of the finished cable mold. Connectors are permitted for round aluminum wires over 27 laps of aluminum stranded wire and steel core aluminum stranded wire.

What are the use characteristics of aluminum alloy overhead strands?

(Summary description)In the aluminum alloy overhead stranded wire, any round aluminum wire is not allowed to join. The exception is the connector on the front of the finished cable mold. Connectors are permitted for round aluminum wires over 27 laps of aluminum stranded wire and steel core aluminum stranded wire.

  • Categories:News
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  • Time of issue:2021-12-27 10:23
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Information

  What is the process quality of aluminum alloy overhead strands ?

  1 kink

     The aluminum surface of the wheel should be shiny and not have all the defects that are not in harmony with a good industrial product. The kinks should be even and tight.

What are the use characteristics of aluminum alloy overhead strands?

  2 Welding

  In the aluminum alloy overhead stranded wire, any round aluminum wire is not allowed to join. The exception is the connector on the front of the finished cable mold. Connectors are permitted for round aluminum wires over 27 laps of aluminum stranded wire and steel core aluminum stranded wire. But the distance between the two connectors of the finished stranded wire is more than 15 meters. The joints should be smooth and rounded. Aluminum wire connectors should use resistance butt welding, cold press butt welding or resistance cold welding. Joints for resistance butt welds are annealed to a minimum annealed length of 200mm on each side. The mechanical strength of the joint need not reach that of the aluminum wire gas.

  What are the acceptance rules for aluminum alloy overhead strands?

  1 The product can only be shipped out after the factory is qualified. Each factory product should be accompanied by a quality inspection certificate. If requested by the user of 6 GB 1179-83, the manufacturer shall provide test data according to 7.1 and 7.2.

  2 Products are inspected in accordance with the provisions of Table 6.

    Pre-Kink Sampling: Upload less than 10% of the round aluminum wire and galvanized steel wire used for the kink arrangement and take each experimental sample from each selected sample. After kinking, the sample: The sample should be selected around 10% according to which batch has the number of kinked roots. Psalm for each project is the upload root sample for each selected project. Note: The sample for measuring the elongation of 1% stress of galvanized steel wire is uploaded to the steel wire. If the user requires a representative to be present, the experiment will be sampled in accordance with 8.2.2. unless otherwise arranged by the parties. Experiments are to be carried out at the manufacturing facility if there is an agreement.

  If the first test fails, twice as many trials shall be taken, and a second test shall be carried out for the unqualified items. If it still fails, check one by one.

  1. Increase the flexibility of the cable, which is easier to implement in production, inspection, logistics, and installation.

  2. Reduce skin effect and proximity effect, improve cable transmission performance

  3. Possibility to realize the production of large-section conductors

  4. Meet special requirements or uses (such as water blocking conductors)

  What are the use characteristics of aluminum alloy overhead strands ?

  1. The weight is light, and the single weight ratio of the drawing is the same as that of the steel core aluminum stranded wire.

  2. The wire loss is small, the DC resistance is effectively reduced, and there is no hysteresis loss.

  Corrosion resistance and extended life.

  The aluminum alloy is kinked because of its light weight. The advantage of large current carrying capacity is generally used as a new circuit to replace the existing aluminum stranded wire, which is called the second-generation wire product.

  What are the characteristics and uses of aluminum alloy stranded wire?

  What are the characteristics of aluminum alloy overhead strands ?

  1. The continuous use temperature of the aluminum alloy stranded wire reaches 90 ℃.

  2. The use temperature of heat-resistant aluminum alloy stranded wire can reach more than 150 degrees.

  3. High flow capacity.

  4. Good anti-corrosion performance.

  Aluminum alloy stranded wire is suitable for overhead long-distance power transmission lines. Suitable for overhead transmission lines over long distances or heavy snow. The anti-corrosion type can be selected in coastal or corrosive climate sites.

 

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