Special attention should be paid when installing low-voltage switchgear.
(1) The road surface of the box type substation should be installed at a higher position rather than a lower position. In order to prevent precipitation from entering the truck, the low-voltage switchgear is not likely to harm the opening of facilities. When paving the concrete service platform, the high and low voltage sides should be loosened to facilitate cable laying. If the soil is composed of sedimentary areas or rotten soil, it is necessary to excavate to a quiet soil, then add stronger soil, and add the other three gaps or debris to ensure basic reliability.
2) Grounding and neutral line grounding are common conditions for ocean freight container substations. The grounding network is usually grounded in the four corners of the base and then connected. There must be two reliable connections between the substation and the power grid in the room. After the operation of the box type substation, the grounding condition should be immediately checked for looseness and corrosion. Immediately measure the grounding resistance, and the grounding resistance of the low-voltage switchgear should not exceed 4 Omega watches.
3) The key to using a rechargeable battery substation is to use a blowing circulation system for cooling, and there should be no illegal pile foundation construction in the surrounding area, especially in the following areas: frequent disassembly and assembly of the piles of high and low voltage distribution room doors and the steel bars of the louver curtains to ensure that all electrical equipment does not exceed the allowable temperature.
(4) After the low-voltage circuit breaker is disconnected, the reason for the disconnection should be checked before the experiment. If the supply fails, it is necessary to carefully investigate the cause of the defect, remove the switch power supply after the accident, and prevent expansion.
(5) The shell of the container type high-voltage transformer is equipped with active zinc oxide lightning protection grounding, which is conducive to inspection, disassembly, and replacement of low-voltage switchgear machinery and equipment.
