Hainan electricity
First, site selection. The location of the low-voltage distribution room should be close to the load center, set in a place with less dust, less corrosive medium, dryness and slight vibration, and appropriate room for development should be left;
Second, the layout of distribution lines should meet the conditions: in line with the characteristics of the site environment; Conforming to the characteristics of the building; Accessibility between people and wiring; Electromechanical stress that may occur due to short circuit; Other stresses that the wiring may suffer during installation or operation and the self-weight of the conductor.
Third, the layout of power distribution equipment. The layout of power distribution equipment in low-voltage distribution room must follow the principles of safety, reliability, applicability and economy, and should be convenient for installation, operation, handling, maintenance, testing and monitoring. High-voltage electrical equipment and low-voltage electrical equipment rooms located in the same room, and power distribution cabinets arranged in rows must leave appropriate distances and exits of channels. Necessary safety measures should be taken when arranging distribution equipment. If there is a dangerous potential, the bare charged body should be shielded or placed outside the reach of people. When it is difficult to use shields and covers, barriers can be used for protection.
Fourth, the influence of external environment should be avoided in the layout of distribution lines: the influence of thermal effect caused by external heat sources should be avoided; Damage caused by water intrusion or entering into group objects during use should be prevented; The influence caused by external mechanical damage should be prevented; In places with a lot of dust, the influence caused by dust gathering on wiring should be avoided; Damage caused by strong solar radiation should be avoided. Hainan distribution box