• Cable insulation and sheath material performance test

    Cable insulation and sheath material performance test

    29-12-2018

    Including thermal weight loss, thermal shock, high temperature pressure, low temperature bending, low temperature stretching, low temperature impact, flame retardant properties and so on. These are the properties of plastic materials for insulation and sheathing. For example, the thermal weight loss test is to detect the degree of degradation and volatilization of materials after high temperature ...

  • Cable selection

    Cable selection

    25-12-2018

    Commonly used power cables include oil-immersed cables, PVC insulated cables, and cross-linked polyethylene cables. They are extended to different types of special cables depending on the application. Now, with the continuous improvement of production skills and production processes, XLPE cables have become the most widely used cable products. When selecting cables, they should be selected accordi...

  • Cable mechanical performance testing

    Cable mechanical performance testing

    18-12-2018

    Mainly to test the tensile strength and elongation at break of insulating and sheathed plastic materials, including before and after aging, as well as flexural test, bending test, load breaking core test, insulated core tear test for finished soft cable, Static bending test, etc. Tensile strength before and after aging, and elongation at break before and after aging are the most important and most...

  • What are the requirements for the processing of cable supports?

    What are the requirements for the processing of cable supports?

    10-12-2018

    Answer: (1) The steel should be straight and there is no obvious distortion. The blanking error should be within 5mm. The incision should be free of curling and burrs; (2) The bracket shall be welded firmly, without obvious deformation, and the vertical clearance and design deviation between the cross braces shall not exceed 5 mm; (3) The metal bracket must be treated with anti-corrosion treatment...

  • Briefly describe the process of 10KV cross-linked cable heat-shrinking to make indoor terminal heads?

    Briefly describe the process of 10KV cross-linked cable heat-shrinking to make indoor terminal heads?

    03-12-2018

    Answer: (1) Preparation stage: Check whether the heat-shrinkable cable accessories are complete, whether the models match, check and confirm the cable with moisture, and check the cables. (2) Cut off the excess cable and determine the cable length according to the site conditions. (3) Stripping the sheath. (4) Solder the grounding wire and weld the grounding wire to the steel strip. (5) Fill the t...

  • For cable network and cable network automation

    For cable network and cable network automation

    26-11-2018

    Following the continuous implementation and application of power cables in the distribution network, the distribution network can be divided into cable networks and overhead networks (including overhead and cable hybrid networks). "The implementation status and compensation for the "Urban Medium and Low Voltage Distribution Network Transformation Skills Guide" also made specific requests for cable...

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