High-voltage busbar installation method and precautions

The high-voltage busway is used in the backup equipment of large-scale substations and large enterprises. Wanyou Electric Network will briefly describe the installation method of high-voltage busbars and the precautions. Firstly, the installation method of the high voltage busbar is as follows: 1. The busbar channel is installed horizontally, the distance between the two brackets is 5002500mm, and the vertical installation spacing is 6003600mm. 2. When installing vertically, the mounting bracket should be drilled with the side plate of the channel and fastened with M6-M8 bolts. 3. The installation and construction process should give priority to the construction plan from the feeder system to the trunk line to the branch line. 4. Basic sequence of closed busway installation: selected wiring direction → fixed bracket → four bolts are fastened between the slots → the busbar joint plate and the insulating pad are inserted between the phases → the single head bolt penetrates the insulating sleeve → the bolt penetrates into the busbar Pre-positioning holes → fastening at both ends → adding half-mounted upper and lower cover plates → fixing the channel to the bracket. 5, the installation of the channel bus, the beginning, the middle, the terminal and the channel housing should be reliably connected to the grounding grid of the electrical equipment. 6. After the installation project, apply the shaking table before the power transmission to test the channel busbar phase insulation and grounding insulation resistance: 1 low voltage busbar channel is not less than 20MΩ; 2 for 6~10KV high voltage busbar channel insulation resistance is not less than 1200MΩ. The 35KV insulation resistance is not less than 3000MΩ. 7. Before the power transmission, the 6~35KV bus channel should be tested for 50HZ power frequency withstand voltage and DC leakage test. Matters needing attention (1) Before the maintenance of the busway channel, the power distribution cabinet must be powered off first, and the “man-operated, strictly closed” Peugeot card should be hanged. There should be special guardianship in front of the cabinet. (2) Before the start of maintenance work, it should be checked and discharged, and the grounding rod should be used to short-circuit the phase and reliably ground before operation.
The installation method and precautions for the high voltage busway have been introduced for you. If you have other questions, please pay attention to our website and we will continue to update the product content for you.


This article is reproduced from Jiangsu Wanyou Electric Technology Co., Ltd.: http://jswydq.com

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