During the operation of the enclosed busbar trunking,it is necessary to continuously check whether there are leaks,water sprays,potential sources of moisture around the entire system,whether there are heavy objects that pose a threat to the system,and whether there are heat sources that affect the temperature rise of the enclosed busbar trunking system.Check for any foreign objects entering the interior of the enclosed busbar trunking.Before the maintenance of the enclosed busbar trunking,a power outage inspection of the system is required.All power sources of the enclosed busbar trunking should be cut off,and a multimeter should be used to measure whether there is voltage in the conductive body.Only after confirming that the enclosed busbar trunking is not electrified can maintenance be carried out to prevent accidents caused by high voltage that may cause physical injury or even death to operators.

　　During the maintenance period,special attention should be paid to the clamping torque and surface cleanliness of the connector.Loose or contaminated structures may cause increased resistance and overheating,and even arc light may occur due to uneven connection surfaces.Check for any defects or rust in the components of the enclosed busbar trunking system,and ensure that the support springs have appropriate elasticity.Replace immediately if any problems are found.If phase to phase grounding or insulation breakdown is found in the use of enclosed busbar trunking,it should be dismantled in sections and checked in sections with a voltage tester to identify the fault or replace the enclosed busbar trunking,and re insulated.

　　When the enclosed busbar trunking operates for a long time,the joint temperature rise should be checked regularly every year.The joint temperature rise should be checked according to the standard,and the insulation material should be checked for aging and the conductive parts should be checked for melting and deformation.We check whether the plug box pins of the enclosed busbar trunking system are in good contact with the busbar.Before re powering the enclosed busbar trunking system,we should check the insulation resistance and record it for archiving.After maintenance,we ensure that the original protection level requirements of the enclosed busbar trunking system are met.When a fault occurs in the enclosed bus duct during use,the connector should be able to automatically eliminate thermal stress damage,allowing the enclosed bus duct to operate normally.

　　The enclosed bus duct adopts docking installation,which is convenient and flexible during the installation process,greatly saving installation time.The enclosed bus duct adopts separated air insulation,which improves the heat dissipation of the enclosed bus duct and reduces impedance.The internal insulation components are made of high-strength epoxy resin,which improves the resistance and thermal stability of the enclosed bus duct.The enclosed busbar trunking of current level adopts cover plates,with high standardization,strong exchange capacity,and convenient variable capacity interface.The enclosed busbar trunking is used for connecting low-voltage distribution panels with large and medium-sized loads,and has sufficient load capacity to support and protect the busbar trunking system.