high-rise building construction in the trunk cable distribution branch, according to their priorities into the development of history: Plug Busway, the cable line at me, the branch of pre-insulated cables and connectors puncture.
1. Busway Plug: big load for distribution lines, General Electric high-rise building inside the shaft installed on each floor Busway have a connector plug, the factory after the Busway to be transported to the construction site sub - Bolt connection with the installation, and to ensure that the moderate joint torque, and installers of the high technical requirements and the other in the Busway waterproof, corrosion-resistant, anti-seismic and anti-displacement capacity in areas such as poor.
2. Cable line at me: this connection need to take up more space construction, high cost, complexity and difficulty of construction, poor reliability, easy to form a branch of the joint point of failure.
3. Branch of the pre-cable: comparison with the Busway, although an important light, small-diameter, waterproof, corrosion resistance, earthquake resistance and good environmental requirements and low, but high prices, to be specialized lifting equipment, Time-consuming and labor-intensive. Moreover, pre-order branch of the cables before construction on the actual size of the electric shaft (shaft height, height, location of each branch head, etc.) to measure, based on the actual size of the factory production, produced by the pre-cable with a branch of the inflexible nature. In order to avoid floor as a result of changes in the functional capacity of the changes will be needed in advance of the trunk and branch lines are to enlarge a section of line, special circumstances should be reserved for branch lines in order to spare.
4. Insulation puncture connector: The connection with the installation of simple, low-cost, safe and reliable maintenance-free characteristics. No need to cut off the main cable, without cables stripped of insulation can do cable branch, complete insulating joints can live line work, can be anywhere in the cable for on-site branch. Without the use of terminal boxes, lines at me. And distort the joint-resistant, shock-proof, waterproof, anti-aging corrosion. The use of insulation puncture connector cable branch to do, obviously overall efficiency, cost-effective than in the past to connect the traditional way.
insulation as a result of other puncture connector with a connection can not be compared to the advantages, as early as 30 years ago by Europe, the United States developed a number of widely used, and Xi Kamu France for the world's largest power cable connector manufacturer , The output of the manufacturing process, quality specifications, as well as models of the world.