• Cable laying method

    Cable laying method

    31-08-2018

    The laying methods of the cable include direct burial laying, pipe laying, shallow groove laying, cable trench laying, cable tunnel laying, and overhead laying. In terms of skill comparison, cable tunneling methods and cable trenching methods are the best method of laying, as these two methods facilitate cable construction, maintenance and repair. In some developed cities, when planning and buildi...

  • The difference between YJV cable and VV cable

    The difference between YJV cable and VV cable

    25-08-2018

    YJV and VV are two cables with different insulation materials. Generally, indoor permanent projects tend to choose YJV cables. VV cables are generally used in low voltage systems, and YJV cables are mostly used in high voltage systems. YJV cables are superior to VV cables in temperature resistance, pressure resistance and corrosion resistance. Just the price is more expensive. YJV—copper core XLPE...

  • How to distinguish between flame retardant and fire resistance of cables?

    How to distinguish between flame retardant and fire resistance of cables?

    17-08-2018

    Some electrical designers have unclear the concept of flame-retardant cables and fire-resistant cables, and do not understand the structure and characteristics of the two, resulting in the inability to properly design and select these two cables according to the power supply requirements, and design agents or supervision work on site. The installation of these two cables cannot be properly guided....

  • Electrical performance test

    Electrical performance test

    10-08-2018

    There are main conductor DC resistance, insulation resistance, finished voltage test and insulated core voltage test. Each item is very important. The conductor resistance directly reflects the electrical transmission performance of the wire and cable, which directly affects the temperature and life of the wire and cable during power-on operation.voltage drop, and operational safety, it mainly exa...

  • Wire and cable products are mainly divided into five categories:

    Wire and cable products are mainly divided into five categories:

    02-08-2018

    1. Bare wire and bare conductor products The main features of this product are: pure conductor metal, no insulation and sheath layer, such as steel core aluminum stranded wire, copper-aluminum busbar, electric locomotive line, etc.; processing technology is mainly pressure processing, such as smelting, rolling, pulling System, stranding/tightening stranding, etc.; products are mainly used in subur...

  • The application of wire and cable is mainly divided into three categories:

    The application of wire and cable is mainly divided into three categories:

    26-07-2018

    1. Power system The wire and cable products used in the power system mainly include overhead bare wires, bus bars (bus bars), power cables (plastic cables, oil-paper cables (substantially replaced by plastic power cables), rubber cables, overhead insulated cables), and branch cables. (Replaces some busbars), magnet wires, and electrical equipment, wires and cables for power equipment. 2. Informati...

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