Vietnam distribution cabinet installation process?

The installation process of power distribution cabinets in Vietnam is basically consistent with the international installation process, mainly including the following steps:

preparatory work/be about to work

Design review: carefully review the design documents of the power distribution cabinet to ensure that the design conforms to the relevant local standards and specifications in Vietnam, such as the requirements for the installation of electrical equipment in TCVN (Vietnam National Standard), and at the same time meet the needs of the actual power load.

Site preparation: clean up the site where the power distribution cabinet is installed, ensure that the ground is flat and well ventilated, and provide sufficient operating space. Check whether the site meets the relevant safety standards, such as whether the grounding system is perfect.

Personnel training: Provide relevant training to the installers, so that they can understand the local electrical installation laws and safety regulations in Vietnam, and have sufficient electrical knowledge and operation skills.

Material preparation: prepare all the materials and tools needed for installation, including distribution cabinet body, cables, connectors, bolts, tool boxes, etc., to ensure that the quality and specifications of materials meet the design requirements and have relevant quality certificates.

Installation step

Installation base: Install the base of the power distribution cabinet on the cleaned site. Steel or concrete foundation can be used to ensure that the base is level and firm, and a level meter can be used for measurement and adjustment.

Installation of main structure: install the main structure of the power distribution cabinet on the base, assemble and wire correctly according to the design requirements, ensure the connection of each component is tight, fix it with bolts and other connectors, and check whether the connection parts are firm.

Cable connection: Connect cables, distinguish the uses of different cables, such as main power cable, branch cable, control cable, etc., ensure that the joint of each cable is firm and reliable, and conduct insulation test and continuity test after connection.

Installation of auxiliary equipment: install auxiliary equipment of the power distribution cabinet, such as lighting, ventilation fan, temperature controller, etc. The installation of these equipment will help improve the maintainability and convenience of the power distribution cabinet.

Grounding treatment: conduct grounding treatment to ensure that all metal parts and equipment are well grounded, and the grounding resistance should meet the requirements of local standards in Vietnam, generally not more than 4 ohms.

Connect the power supply: connect the power distribution cabinet to the power supply, and conduct a preliminary electrical test to check whether the power supply voltage is normal and the phase sequence is correct.

Acceptance and testing

Appearance acceptance: check the appearance of the installed power distribution cabinet to ensure that the shell is intact, the logo is clear and identifiable, all components are assembled correctly, and the cabinet door switch is flexible.

Electrical test: Conduct electrical test of the distribution cabinet, including current, voltage, insulation resistance, etc., to ensure that all electrical parameters meet the design specifications and Vietnamese local standards.

Operation test: Conduct the operation test of the power distribution cabinet, check whether the switch action is flexible and whether the protection device is started normally, simulate various working conditions and verify the performance of the power distribution cabinet.

Protection device test: test the overload protection and short circuit protection of the distribution cabinet to ensure that the power supply is cut off in time when a fault occurs and prevent the accident from expanding.

Documentation and training

Document arrangement: arrange all documents generated during installation and testing, including design documents, acceptance reports and test records, to form a complete file for future maintenance and management.

Training: provide training for relevant maintenance personnel, so that they can understand the basic structure, working principle and daily maintenance precautions of the power distribution cabinet, and ensure the correct operation and maintenance of the power distribution cabinet.