If the bus duct is subjected to short-circuit current impact,the electrical clearance and creepage distance still meet the requirements and will not hinder the normal connection of the tapping unit.When there is no sign of damage to the insulation of the bus duct and the insulation support parts of the components,slight deformation of the bus is allowed,and the detection device has no fault current indication.The parts used for connecting the busbar should not be loosened or detached,the function of the protective grounding device should not be weakened,the protection level should not be damaged,and it can withstand the withstand voltage test without maintenance.However,it is required to specify the value of short-term withstand current in the product standard.

　　In order to improve reliability,bus ducts have been given special consideration and design in terms of insulation.The bus duct is equipped with an insulation layer on the conductive busbar.And there is also an appropriate air gap between the insulation layers,and insulation pads are used between the conductive bars of the bus duct and the outer shell of the bus duct.At the same time,the bus duct is designed with three-layer insulation protection.For traditional transmission equipment,accidents are prone to occur if used in relatively humid environments,as the humid environment can easily affect the performance of traditional transmission equipment.

　　If we use the bus duct in a humid environment,it has a great advantage because the insulation of the bus duct is well done.With the emergence of modern engineering facilities and equipment,the electricity consumption of various industries has increased rapidly,especially with the emergence of numerous high-rise buildings and large factory workshops.Traditional cables,as transmission lines,can no longer meet the requirements in high current transmission systems.The parallel use of multiple cables has brought many inconveniences to on-site installation and construction connections.As a new type of distribution wire,plug-in bus duct has emerged,which fully demonstrates its superiority in high current transmission compared to traditional cables.

　　At the same time,due to the adoption of new technologies and processes,the contact resistance and temperature rise at the connection points of both ends of the bus duct and the junction of the distribution port have been greatly reduced.High quality insulation materials have also been used in the bus duct,thereby improving its reliability and making the entire system more complete.In terms of moisture prevention,the busbar is prone to moisture and water leakage during construction,causing a decrease in insulation resistance between phases.The heat dissipation of the busbar mainly relies on the shell.Due to the small air gap between the busbars,a strong electric force is generated when the busbars pass through high currents,causing the magnetic oscillation frequency to form a superimposed state and resulting in excessive noise.