Way direction of the branch cable is

Building high-rise buildings in the branch distribution trunk cable, according to the order ofhistory is divided into: plug-in busbar, cable distribution boxes, cables and insulationpiercing the pre-branch connector.


        1 Plug-in busbar: The main distribution line for large loads, in general, high-rise buildings to install electrical shafts have a docking connector on each busbar, busbar after leaving the factory to be shipped to the construction site with a sub-Bolts the installation and connection, and to ensure moderate joint torque, the installation of higher skills of workers, in addition to busbar in a waterproof, corrosion-resistant, shock, anti-displacement capacity is poor.


        2 cable distribution box: This connection needs to occupy a larger space construction, high cost of construction is complex and difficult, less reliable, easy to form a branch point of failure at the joints.


        3 pre-branch cable: Comparison with the busbar, although an important light, small diameter, water resistance, corrosion resistance, good shock resistance, environmental requirements and low, but higher prices to be hoisting specialized equipment, time-consuming workers. Moreover, pre-orders required before branch cable shaft of the electrical construction of the actual size (shaft height, floors, each branch of the firstlocation, etc.) to measure, according to the actual size of the factory production, produced by the pre-branch cable with inflexibility. Floor function in order to avoid changes in volumecaused by changes need to be pre-branch trunk and feeder cable are enlarged cross-section level, the special circumstances of the branch lines should be reserved for backup.


       4 insulation piercing connectors: the connection with the ease of installation, low cost,safe and reliable maintenance-free features. No need to cut the main cable, strip the cableinsulation without the need to do the cable branch connector is fully insulated, can live working, you can make on-site anywhere in the cable branch. Without the use of the terminal box, distribution box. And joint resistance to distortion, shockproof, waterproof,corrosion-resistant aging. To do with the cable insulation piercing connectors branch, comprehensive benefits are obvious, cost-effective than the conventional connection.