• How to prevent fire in power cables

    How to prevent fire in power cables

    15-06-2018

    1. Avoid cable aging and damage The cable tunnel should be naturally ventilated. When the normal load of the cable is used so that the air temperature in the tunnel is higher than 40 to 50°C, natural ventilation and mechanical exhaust ventilation can be used for ventilation. Ventilation system fan should be linked with the fire detector to ensure that the tunnel can automatically stop the wind whe...

  • Learn about a wide variety of cables

    Learn about a wide variety of cables

    07-06-2018

    Learn about a wide variety of cables In the eyes of many people, this cable thing is very boring and difficult to understand. Many knowledge about cables is beyond the recognition of ordinary people. To speak up, to thoroughly understand cable knowledge is also a big project. Now Let Xiao Bian take you to know a variety of cables! Cables for electrical equipment are the most common cables in life....

  • Aluminum line advantages and disadvantages

    Aluminum line advantages and disadvantages

    30-05-2018

    Aluminum line advantages and disadvantages: (1) Cheaper prices: Copper rods are 3.5 times the price of aluminum rods, and copper is 3.3 times that of aluminum. Therefore, aluminum wire cables are much cheaper than copper wire cables and are suitable for low-capital projects or temporary power consumption. (2) The cable is very light: The weight of the aluminum cable is 40% of the copper cable, and...

  • The advantages and disadvantages of copper wire

    The advantages and disadvantages of copper wire

    25-05-2018

    Copper advantages and disadvantages: (1) Low resistivity: The resistivity of the aluminum wire cable is about 1.68 times higher than that of the copper wire cable. (2) Good ductility: The elongation rate of copper alloy is 20~40%, and the extension rate of copper for electrical use is more than 30%, while that of aluminum alloy is only 18%. (3) High strength: Permissible stress at room temperature...

  • The difference between national standard cable and non-standard cable

    The difference between national standard cable and non-standard cable

    18-05-2018

    Cables and wires are generally used in the use of engineering users and construction projects: 1. National standard cable: The cable produced according to the relevant cable standard technology issued by the country is abbreviated as international line. 2. Line Labeling: According to industry standards, there is mainly less cutting and cutting, but it does not affect the large performance. 3, non-...

  • Circuit construction process introduction

    Circuit construction process introduction

    11-05-2018

    Interpretation of 1 and 4F (4 effective preventions): (1) Slotting is shallow, and it is a secondary reform project to effectively prevent the cutting off of the reinforcing steel home improvement engineering circuit construction. The circuit construction should minimize the damage to the main structure of the building, and it should reach the proprietary single-tube single-line pipe laying constr...

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