This process is not limited by the plate, and the shell is made into a waffle shape, which increases the mechanical strength of the bus bar, and the horizontal section of the bus bar can be as long as 13 m. Due to the fact that the enclosure is made into a roll form, the location of the pits is intentionally separated and fixed, and the distance between the busbars is 18 mm.

線路之間的通風良好，明顯改善了母線槽的防潮和散熱功能，更適合南方氣候； 它們之間存在一定的間隙，這會導致導線的溫度上升下降，從而提高了過載能力并降低了磁振蕩噪聲。 但是，它產生的雜散電流和電感電抗要比致密的母線大得多，因此與相同規格的產品相比，其導電條的截面必須大于致密的絕緣插入式母線。

Good ventilation between lines significantly improves the moisture and heat dissipation functions of the bus duct, making it more suitable for the southern climate; There is a certain gap between them, which will cause the temperature of the wire to rise and fall, thereby improving the overload capacity and reducing the magnetic oscillation noise. However, the stray current and inductive reactance generated by it are much larger than that of a dense busbar, so compared to products of the same specification, the cross-section of its conductive bar must be larger than that of a dense insulated plug-in busbar.

空氣插頭母線槽（BMC）

Air plug bus duct (BMC)

由于匯流排之間的接頭與銅軟結合，南方的天氣潮濕，接頭易于氧化，從而使接頭和匯流排之間接觸不良，從而使接觸點易于加熱，因此 在南方很少使用。 接頭之間的體積太大，水平母線段尺寸不一致，形狀也不美觀。

Due to the soft bonding of the joints between the bus bars and copper, the joints are prone to oxidation in humid weather in the south, resulting in poor contact between the joints and the bus bars, making the contact points easy to heat, so they are rarely used in the south. The volume between joints is too large, the horizontal bus section size is inconsistent, and the shape is not beautiful.

密集絕緣插入式母線槽（CMC）

Densely insulated plug-in bus duct (CMC)

其水分和散熱效果差。 在防潮方面，母線在施工過程中容易受潮和滲水，導致相間絕緣電阻降低。 母線的散熱主要取決于外殼。 由于電線和電線之間的緊湊布置，L2和L3相的熱能被緩慢散發，并且母線槽的溫度升高形成得很高。 致密的絕緣插入式母線受外板限制，只能產生不超過3m的水平截面。 由于匯流排之間的氣隙小，因此當匯流排通過大電流時，會產生很強的電功率，導致磁振蕩頻率形成疊加狀態，從而產生過多的噪聲。

Its moisture and heat dissipation effects are poor. In terms of moisture prevention, the busbar is prone to moisture and water seepage during construction, resulting in a reduction in interphase insulation resistance. The heat dissipation of the bus mainly depends on the enclosure. Due to the compact arrangement between the wires and wires, the heat energy of the L2 and L3 phases is slowly dissipated, and the temperature rise of the bus duct is very high. The compact insulated plug-in busbar is limited by the outer plate and can only produce a horizontal cross-section of not more than 3m. Due to the small air gap between the busbars, when the busbars pass through a large current, they generate strong electrical power, resulting in a superimposed state of magnetic oscillation frequencies, resulting in excessive noise.

插入式母線槽為干線式系統，具有體積小，結構緊湊，運行可靠，傳輸電流大，分接和送料方便，維護方便，能耗低，動態熱穩定性好等優點

The plug-in bus duct is a trunk type system with advantages such as small size, compact structure, reliable operation, large transmission current, convenient tapping and feeding, convenient maintenance, low energy consumption, and good dynamic thermal stability