How to reasonably plan the wiring in the Power Distribution Cabinet to reduce electromagnetic interference and line confusion?
Publish Time: 2024-06-25
In the design and installation of the Power Distribution Cabinet, it is crucial to reasonably plan the internal wiring to reduce electromagnetic interference and line confusion.
First, the circuits should be classified according to their functions and current sizes. Strong and weak current lines should be arranged separately to avoid interference of strong current lines on weak current signals. At the same time, lines with higher power and current should be distinguished from lines with lower current, and arranged in different cable ducts or areas.
Choosing the right cable type and specification is also key. For high-frequency signal lines, shielded cables should be used, and the shielding layer should be well grounded to reduce the influence of external electromagnetic interference. For high-current lines, wires with sufficient cross-sectional area should be selected to reduce line resistance and heat generation.
The direction of the wiring should be kept as straight and simple as possible, avoiding excessive bends and crossovers. This not only reduces the length of the line, reduces resistance and loss, but also reduces mutual coupling between lines.
Set up reasonable cable ducts and partitions in the Power Distribution Cabinet to separate different types of lines. The size and number of the cable troughs should be planned according to the number and thickness of the lines to ensure that the lines can be neatly arranged in the cable troughs without crowding and confusion.
For lines that are prone to electromagnetic interference, such as inverter output lines, filtering devices or magnetic rings can be added to reduce the propagation of high-frequency harmonics. At the same time, the positions of electrical components should be arranged reasonably to minimize the electromagnetic influence between each other.
During the wiring process, sufficient margin should be left for future maintenance and expansion. Clearly mark and number the lines for quick identification and search.
In addition, the ventilation and heat dissipation of the Power Distribution Cabinet should also be considered to avoid the lines being too dense to affect air circulation and cause local overheating.
In short, through scientific and reasonable planning of the wiring in the Power Distribution Cabinet, including comprehensive considerations such as line classification, cable selection, direction design, cable trough separation, component layout, and identification management, electromagnetic interference and line confusion can be effectively reduced, the operating stability and reliability of the Power Distribution Cabinet can be improved, and the normal operation of the electrical system can be guaranteed.
