• The difference between home improvement wire BVR line and BYJ line

    The difference between home improvement wire BVR line and BYJ line

    In ordinary building decoration, the choice of home improvement wire, mostly copper hard wire, rarely used soft wire, hard wire and soft wire in addition to the installation of the difference between the pipe, there are some differences in product performance, here, the national network The cable gi... read more

    Sep 06,2019 News
  • The main performance of the insulation material of the power cable

    The main performance of the insulation material of the power cable

    The following main features should be available: (1) not easily broken by current; (2) The dielectric loss is small; (3) large insulation resistance; (4) Excellent discharge resistance; (5) has a certain degree of softness and mechanical strength; (6) Good insulation stability. read more

    Sep 16,2019 News
  • The disadvantage of high voltage cable buried in the ground(1)

    The disadvantage of high voltage cable buried in the ground(1)

    Ultra-high voltage transmission refers to the transmission of electrical energy between voltages of 0.5 kV to 1 k kV. If the 220 kV transmission index is 100%, the relative investment per kilometer of EHV transmission, the relative cost per 100 kWh of electricity transmission per kWh, and the consum... read more

    Sep 23,2019 News
  • The disadvantage of high voltage cable buried in the ground(2)

    The disadvantage of high voltage cable buried in the ground(2)

    On the other hand, it is also the innate "hard" of the underground cable itself. In terms of heat dissipation of the wires, the overhead lines have an advantage in heat dissipation, and the cables buried in the ground are difficult to dissipate due to space and air circulation problems, which largel... read more

    Sep 30,2019 News
  • The color of the wire represents what line

    The color of the wire represents what line

    1, according to the wire color marking circuit Black - internal wiring of devices and equipment. Brown - the positive pole of the DC circuit. Red - phase C of a three-phase circuit; a collector of a semiconductor transistor; A cathode of a semiconductor diode, a rectifier diode, or a thyristor. Yell... read more

    Oct 09,2019 News