Compared to other methods,enclosed bus ducts are cheaper and lower in construction costs.They have higher economic indicators,significant comprehensive benefits,complete specifications,flexible selection,and can be combined arbitrarily;The branch head can set the branch position arbitrarily according to the needs of the distribution points in the power distribution system.Occupying a small building area,there are no requirements for the spatial dimensions of civil engineering;Compared with enclosed bus ducts,the cable routing is arbitrary and the bending radius is small,greatly reducing the construction difficulty and shrinking the space size;The installation labor intensity is low,the construction period is short,and it is only one tenth of that when installing enclosed bus ducts.

　　The installation of enclosed bus ducts is simple and easy,with low environmental requirements.They can be directly laid in cable trenches,dedicated cable shafts in buildings,or in different cable trays,with low installation accuracy;It has excellent seismic resistance and is generally installed in parallel with the enclosed mechanical connection bus duct.When the wall is subjected to vibration,the joints of the enclosed bus duct become loose,and the prefabricated branch cables are not affected,especially when passing through the settlement joints of the building,no measures are required;Good airtightness and waterproofness,capable of normal power supply and operation in humid environments,and can also be installed outdoors or buried in soil;Fire resistant prefabricated branch cables can maintain normal power transmission operation for 90 minutes in the event of combustion.

　　The surface treatment of the enclosed bus duct shell is an important task,which includes processes such as acid washing,phosphating,drying,powder coating,and curing.The shell is coated with polyester epoxy powder,which has strong surface adhesion and can maintain insulation for a long time.The enclosed bus duct components,including insulation supports,are an integral part of the bus duct equipment used to support the conductors in the bus duct equipment;The installation board is used to support various components and is suitable for installation in complete sets of equipment;A frame used to support various components and suitable for installation in a complete set of equipment;The casing is a component that protects equipment from certain external factors and prevents direct access in all directions,with a protection level of at least IP30.

　　The enclosed bus duct cover plate is the upper and lower shell surface of the outer shell,usually referring to a component on the bus duct equipment that is used to cover the opening on the outer shell.Fix it with screws or similar methods,and generally do not disassemble the equipment after it is put into operation;A door is a hinged or sliding cover;The side panel is the left and right shell surface of the outer shell,usually referring to a component on the bus duct equipment,used to cover the opening on the outer shell.Fix it with screws or similar methods,and generally do not disassemble the equipment after it is put into operation;An insulating partition is a component used to protect against direct contact from various directions at the entrance and arcs from switching devices and similar devices;Conductors or conductive components used to conduct electricity in normal use,including neutral conductors but excluding neutral protective conductors;Bare conductive parts are a type of accessible conductive component in electrical equipment that are typically not charged,but may become charged in the event of a malfunction;A protective conductor is a type of conductor that is electrically connected to the following components to prevent the risk of electric shock.