There are many different types of enclosed busbars,which are designed to adapt to different working environments.Similarly,maintenance work should also be focused on stopping.The maintenance of enclosed bus duct circuits plays a crucial role in ensuring the normal functioning of components.The construction of enclosed bus ducts seeks elements that affect the operation of bus ducts from the inside out.After receiving the busbar trunking product,the user should not only conduct routine inspections on the random technical documents,packing list,certificate of conformity,size,and appearance disposal,but also pay attention to checking whether the insulation layer is affected by moisture or collision during transportation,and whether the conductor cross-section meets the requirements of the product sample.

　　In the design and installation process of dense bus ducts,the following factors affect the operation of the bus ducts and require high attention:the bus ducts cannot be laid in parallel under water pipes,steam pipes,and power pipes.Plug in bus duct,as a new type of distribution wire,has emerged.Compared with traditional cables,it fully demonstrates its superiority in high current transmission.At the same time,due to the use of new technologies and processes,the contact resistance and temperature rise at the junction of the two ends of the bus duct and the junction of the distribution port are greatly reduced.High quality insulation materials are also used in the bus duct,which improves the reliability of the bus duct and makes the entire system more perfect.

　　Will not cause electric shock accidents and is not affected by atmospheric conditions,therefore it has high reliability;When a fault occurs in the isolated phase blocked busbar,it will not develop into a phase to phase or three-phase fault;The on-site installation and operation maintenance workload of enclosed bus ducts have also been greatly reduced,but their drawback is the high consumption of non-ferrous metals.A closed busbar duct is a type of busbar that is enclosed in a metal shell.According to the structure of the busbar and the shell,it can be divided into three-phase sealed busbars and phase separated sealed busbars.The three-phase busbars are installed in a common metal shell and are not separated from each other.The structure of the isolated phase busbar is fundamentally the same as that of the three-phase busbar,but there are partitions between adjacent phases to separate them.

　　The large difference of enclosed busbar trunking accessories refers to the differential circuit composed of all branch currents except for the bus tie switch and section switch.The small difference of a certain section of busbar refers to the differential circuit composed of all the branches connected to the busbar,including the busbar and section switches,and the current.During the operation of the enclosed bus duct,it often faces various factors such as vibration of the unit,changes in temperature difference between the inside and outside of the bus,and aging of the sealant,which can cause damage to the original sealing structure of the enclosed bus duct.The air inside and outside the enclosed bus duct can freely circulate and replace,and dust,impurities,charged particles,water mist,etc.from the outside air can enter the interior of the bus duct,causing pollution to the interior of the bus duct.