• What are the installation steps for indoor and outdoor prefabricated terminals?

    What are the installation steps for indoor and outdoor prefabricated terminals?

    16-11-2018

    Answer: (1) Place the cable in place according to the predetermined position, fix and clean the surface, and peel off the outer sheath according to the instructions. If there is special need, the outer sheath stripping length can be adjusted, and the copper strip and the outer sheath are respectively led out. 2 sets of ground wire. (2) Take the required size from the outer sheath opening, cut off ...

  • What are the main properties of the insulation material of the power cable?

    What are the main properties of the insulation material of the power cable?

    10-11-2018

    A; should have the following main features: (1) high breakdown strength; (2) low dielectric loss; (3) A fairly high insulation resistance; (4) Excellent discharge resistance; (5) has a certain degree of softness and mechanical strength; (6) The insulation performance is stable for a long time.

  • What inspections should be carried out before the cable is laid?

    What inspections should be carried out before the cable is laid?

    01-11-2018

    Answer: (1) The bracket should be complete and the paint should be complete. (2) Cable type, voltage and specifications are in accordance with the design. (3) The cable insulation is good. When there is doubt about the sealing of the oil-paper cable, it should be judged by damp; the direct-buried cable and the small-bottom cable should pass the DC withstand voltage test; the oil sample of the oil-...

  • Comprehensive understanding of wire and cable

    Comprehensive understanding of wire and cable

    27-10-2018

    1. What types of commonly used wires and cables are used according to their purposes? A: According to the use, it can be divided into bare wire, insulated wire, heat-resistant wire, shielded wire, power cable, control cable, communication cable, RF cable, etc. 2. What kind of occasion is the cable tray suitable for? Answer: The cable tray is suitable for laying power cables and control cables indo...

  • Selection of cable cross-sectional area

    Selection of cable cross-sectional area

    19-10-2018

    The selection of the cable cross-sectional area is related to the amount of capital contribution, the loss of the line and the voltage quality, and the service life of the cable. If the cross-sectional area is too small, the voltage quality will be reduced, the line loss will be too large, and the cable will be overheated and burnt. If the cross-sectional area is too large, the initial investment ...

  • What are the advantages of XLPE cable and oil-paper cable?

    What are the advantages of XLPE cable and oil-paper cable?

    13-10-2018

    Answer: (1) Easy to install because it allows a small minimum bending radius and is light in weight; (2) Not subject to line drop; (3) Good thermal performance, allowing high operating temperature and large transmission capacity; (4) The cable accessories are simple and all are dry structures; (5) Simple operation and maintenance, no oil leakage problem; (6) the price is lower; (7) High reliabilit...

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