Busway accessories have become an essential component of various projects in the field of power transmission and distribution.Due to their large power supply capacity,safety and reliability,and convenient installation,busway accessories have been rapidly developed since their introduction.The busbar accessories in domestic shopping malls basically use copper busbars(with a few choosing aluminum busbars)as current carrying conductors,and precisely in the busbar accessory products,the quotation of conductors accounts for more than 70%of the total cost.Therefore,the rise in copper material quotation directly affects the cost of busbar accessories and brings significant impact to the expansion of manufacturers'shopping malls.

　　Many copper materials used in the production of low-voltage switchgear rely on imports,so the development of alternative conductor materials has become a key focus in the future.Currently,a new type of busbar trunking accessory product has emerged that uses copper aluminum composite conductor materials instead of copper conductor materials.This has to some extent reduced the demand for copper materials in busbar trunking accessory products and saved scarce copper resources.The application of this new material and technology will bring about a transformation and a new round of development in the busbar trunking accessory industry.Bus duct accessories almost do not require maintenance.Daily maintenance usually involves measuring the temperature rise of the shell and core bolts,as well as the temperature rise of the joints in the incoming box.If the core bolts are of grade 4.8,they need to be tightened regularly.If high-strength bolts of grade 8.8 are used,they do not need to be reinforced regularly.

　　The characteristics of general busbar trunking accessories are small head size,light weight,high strength,and a very large creepage distance,which can save metal materials and reduce line costs.The construction and power distribution of large buildings are very smooth,with high current flow and strong short-circuit load capacity.Compared with traditional power distribution,busbar trunking accessories have significantly reduced equipment area and beautiful appearance,which is very smooth for the construction and power distribution of large buildings,with large current flow and strong short-circuit load capacity.To meet the needs of live working,the busbar trunking accessories adopt traditional domestic structural shapes on the brim.Regularly check for aging of insulation materials and melting and deformation of conductive parts.If phase to phase grounding or insulation breakdown is found in the busbar trunking accessories,they should be dismantled in sections and checked in sections with a voltage tester to identify the fault,or the busbar trunking accessories should be replaced or insulated again.