| 摘要 |
The present invention provides a bus duct which is capable of stably fixing a bus bar inside an external housing in an environment where the amount of use of an expensive insulating pad is minimized. To this end, the present invention includes in a technical aspect: the external housing which has an internal space; an upper stainless steel angle and a lower stainless steel angle which are arrange parallel to each other with a specific vertical gap in between in the internal space of the external housing and fastened with bolts; an upper insulating bus holder and a lower insulating bus holder which are bolted to the bottom surface of the upper stainless steel angle and the top surface of the lower stainless steel angle, respectively; the bus bar which is inserted between the upper and lower insulating bus holders; and an inserting slot which is depressed into the bottom surface of the upper insulating bus holder and the top surface of the lower insulating bus holder and supports the top and bottom surfaces of the bus bar inserted between the upper and lower insulating bus holders, wherein a separating wall protrudes at the center of the inserting slot of the upper and lower insulating bus holders so that the bus bars are supported with a specific gap in between. |
