Where is the copper busbar better than the cable
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The main material of copper busbar is copper busbar, so what is better for busway made of copper busbar than cable? 1. The copper busbar is convenient to tap: the so-called plug-in busway means that it uses the plug-in method to tap the power of the main line to the branch line, so the tap is very convenient.The shortcoming of the cable is that it needs to be customized to the factory; its branch connection adopts an open “C” type hoop. Over time, can the tightness of the hoop be guaranteed?In addition, the price of each branch head is high, so prefabricated branch cables are still not widely used..The power supply needs to be cut off on any floor, and the bus duct does not need to be powered off. Just remove the plug-in box of the bus duct when there is no load..But to cut off the branch power supply of the prefabricated branch cable, it is very dangerous to operate with electricity. 2. Strong overload capacity of the copper busbar: The overload capacity of the busbar is strong, depending on the high working temperature of the insulating material used for it. Radiation cross-linked flame-retardant winding tape (PER) and radiation cross-linked polycarbonate heat-shrinkable tube above 140℃.The normal working temperature of the insulating material used in the cable is generally 95 ℃ and 105 ℃, so the overload capacity of the bus duct is much greater than that of the cable. 3. The copper busbar can prevent overload and fire: the busway shell is made of steel and will not burn. Even if the insulation material of the copper bus burns, the flame will not escape to the outside of the busway..The insulating layer and outer skin of ordinary cables will burn, and flame-retardant cables will also burn under flames. They will not burn only after the flame leaves. Fire-resistant cables will not burn, but they are expensive. Only fire-fighting and other power supplies that are not allowed to cut off can use fire-resistant cable. 4. The copper busbar has good heat dissipation performance: the insulation material of the cable (core insulation and sheath insulation) is both an insulating material and a heat insulation material. Therefore, when the power cable is laid in the bridge, a maximum of 2 layers are allowed. The reason is considered daily. Heat dissipation. The busway uses air conduction to dissipate heat and dissipates the heat through the tightly contacting metal shell. Therefore, its heat dissipation performance is generally better than that of the cable.. 5. The service life of the copper busbar is more than 50 years, and the service life of the branch cable is 10-12 years. It can be seen that the service life of the closed busway is much longer than that of the branch cable.. 6. Convenient maintenance of the copper busbar: The bus duct is almost no maintenance. Daily maintenance is usually to measure the temperature rise of the housing and the busbar connector, the temperature rise of the connector of the inlet box, and whether the fasteners are loose or not, etc.. Yueqing Renhe Electronics Co., Ltd. is a professional copper bar manufacturer in Zhejiang, focusing on the production, research and development of new energy electric vehicle battery copper bar connection, electrical connection copper bar, braided copper bar, flexible copper bar connection, cable connection and insulating protective cover And sales.Products comply with EU environmental protection, UL flame retardant, ISO9001 management system certification requirements.