What is a cable tray? What is the purpose of the cable tray?
Power cables are used to transmit and distribute electrical energy cables, power cables commonly used in urban underground power grids, power plants to draw lines, industrial and mining enterprises within the power supply and across the river underwater transmission lines. In the power lines, the proportion of cable is gradually increasing. The power cable is a cable product used to transmit and distribute high-power power in the main line of the power system, including various voltage classes of 1-500 kV and above, and various insulated power cables. Cable Termination Installation Ground Wire For the breakdown of a cable line or a large current flow, the metal sheath (or shield) of the induced voltage may be used when the electrical equipment or distribution cabinet line unexpectedly appears voltage An important tool for ensuring the staff. Braided copper wire can improve the conductivity, adjust the equipment installation error, at the same time from (shock) work compensation role, to facilitate the test and equipment maintenance and so on.
214 provides the same path may interfere with the requirements of the line can be laid in the same metal pipe or metal box
Power Cable External Metal Armor Grounding is to avoid the occurrence of zero sequence current when the housing is live (this can not be used with a single core metal case cable is a reason).
