During the production of enclosed bus ducts,insulation materials with low cost and poor quality are used.If the insulation material has pinholes and uneven thickness,it can lead to malfunctions during use.The copper bars of enclosed bus ducts contain impurities,as well as protrusions,burrs,welding errors,etc.,which can cause burrs to break through the insulation layer after being put into operation for a period of time,leading to the occurrence of short circuits in enclosed bus ducts.The enclosed bus duct has a water spraying function.If there is no water spraying function,it will cause a short circuit in the bus duct in case of fire water spraying or other water situations.

　　After the installation of enclosed busbar trunking in the power system,it is necessary to conduct detailed inspections and regular maintenance to prevent problems during use.If there is a short circuit problem during the use of enclosed busbar trunking equipment,it needs to be resolved in a timely manner.During the installation of enclosed bus ducts,garbage enters the casing of the equipment,and when this garbage gets damp,it can cause a short circuit in the bus duct.We must pay attention during use.Regularly carry out maintenance and inspection work to ensure the safe operation of bus ducts in the power system.

　　The enclosed bus duct is produced by the manufacturer as a complete set,with small operation and maintenance workload,and easy construction and installation.The enclosed bus duct shell adopts multi-point grounding,which makes the shell basically in an equipotential grounding mode,greatly simplifying the structure and eliminating the risk of personal electric shock.As a new type of distribution wire,enclosed busbar trunking has emerged.Compared with traditional cables,it fully demonstrates its superiority in high current transmission,reducing the contact resistance and temperature rise at the connection points of both ends of the busbar trunking and the junction of the distribution port.In addition,high-quality insulation materials are used,thereby improving the safety and reliability of the busbar trunking and perfecting the entire system.

　　The connection between the enclosed bus duct and the low voltage terminal of the oil immersed power transformer should use a flexible connection method,that is,a metal wire braided flexible conductor or other type of flexible conductor transition connection should be used between the two,and this connection method is not necessary for the connection with the dry-type transformer.When using a closed bus duct,the bus scheme is comprehensively compared with other cable schemes,and it is basically a maintenance free line.However,if it is in a humid or corrosive gas environment,the closed bus duct needs to undergo a comprehensive anti-corrosion coating and maintenance every once in a while.