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wire segregation
Shown here is a picture of typical control panel layout. The first step is to group devices. Devices most sensitive to EMI are mounted on the left of the panel; for instance PLCs. In the center are devices that produce some noise such as power supplies and mid-range drives. To the right are the highest noise producing devices, such as high power drives; these are furthest away from sensitive devices. The next step is to group the cabling from the devices and route through a Panduit wiring duct. The best practice is to have colored wiring duct to identify the level of noise the cabling can cause. The white duct is for cabling that has little or no noise and least likely to interfere with Ethernet communication. These ducts are typically near noise sensitive equipment. The next level of noise producing cabling is routed in gray duct. The highest noise producing cabling is in the black duct. By color coding, it should make it obvious not to route sensitive cabling in a duct with noisy cables.
PTM Published on: 2017-03-23