What are the power distribution cabinet selection tips?
Source : Tianxing Cable | Release date : 2024-05-04
For the owners, the installation of the home improvement circuit cannot be separated from the distribution cabinet design. What is the installation specification of the power distribution cabinet? Come and have a look at the professional power distribution cabinet installation knowledge.
PDC installation specifications
1: For the appearance of the cabinet, conduct a detailed inspection to see if there is deformation and whether the paint is peeling. To ensure that the electrical equipment and components are complete, without any damage and other defects. Check the number and installation position of the distribution box, and pay attention to the ground of the box door should use soft copper braided wire.
2: The distribution cabinet must have basic operating conditions, the installation site has been painted, the embedded parts have been completed, and the transport road of the site has been smooth.
3: Determine the installation position according to the site design, and determine the installation position of the spring wire according to the size of the distribution box.
4: According to the construction drawings prefabricated basic frame, the installation should be levelled and straightened, the gasket needs to be welded with electric welding, the basic frame needs to be about 10mm higher than the wipe plane, so as to do anti-corrosion work.
5: The requirements of installation and construction, the distribution cabinet is installed smoothly one by one on the base frame, after the rows of counters are placed, the fine tuning of the horizontal disk surface difference must be done to meet the requirements of the national standard installation. And welded firmly.
6: a, if it is a high voltage test to pass the regional power supply bureau permission before installation, in accordance with the local power supply department's installation regulations and product technical requirements to conduct standardized installation.
B, high voltage cabinet frame, voltage transformer, lightning arrester, bus and other types of switches should be tested.
c, adjust the time relay, overcurrent relay, signal relay and mechanical linkage.
d. Insulation test of each circuit with 500v insulation resistance measuring instrument.
7: Installation is completed, passed the inspection department qualified, and need to have a test report.
8: After the power supply department is also tested, the power can be transmitted to the corresponding building, and after the correction, the voltage meter is detected whether the three-phase is normal, the transformer is powered, and the voltage of the voltage meter is normal. After the power is powered on, it will be transmitted in the above order.
9: Then acceptance, power transmission for 24 hours without anomalies, you can handle acceptance procedures, submit product certificates, specifications, test reports and other information.
Power distribution cabinet selection tips
1, the purchase of power distribution cabinet should be based on the nature of the load and use to choose, to first determine whether the lighting power distribution cabinet or power distribution cabinet, or metering box, socket box, etc.
2. According to the size of the load current, voltage level and protection requirements of the control object, determine the capacity of the switch and protection appliances in the main circuit and each branch in the distribution cabinet, the installation layout of the cable slot and the voltage level.
3, according to the requirements of the use of the environment and the use of the occasion to choose the structure of the distribution cabinet, such as determining the choice of open or dark installation, as well as the appearance of color, moisture, fire and other requirements.
Qingdao Tianxing Cable Co., Ltd. focuses on the production of customized wire and cable manufacturers, main: fire wire and cable, power cable, control cable and other products, exported to more than 40 countries and regions around the world, the annual production capacity of 1 billion yuan. 6000 square meters of storage, standing hundreds of millions of inventory, order demand for rapid distribution and delivery, large prices more favorable. Hotline: 16678668098