Along with the modern engineering facilities and equipment of the emerging, people from all walks of life power consumption increased rapidly, especially many high-rise buildings and large workshop workshop appear, as transmission conductor traditional cable now big current delivery system can not meet the requirements, multiple cable used in parallel to the field installation construction connection brought a lot of inconvenience. Bus bridge as a new type of power distribution wire arises at the historic moment, and the traditional cable, compared to the large current when conveying fully embodies the advantages of it, and at the same time as a result of the new technology, new technology, and greatly reduce the bus duct ends department joint and tap it mouth plug the contact resistance and temperature rise, and in the bus bridge was used in high quality insulation material, and improve the bus bridge safety reliability, make the whole system